lib/uglify.js in uglifier-3.1.3.harmony1 vs lib/uglify.js in uglifier-3.1.3
- old
+ new
@@ -80,12 +80,11 @@
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
***********************************************************************/
-"use strict";function DEFNODE(type,props,methods,base){if(arguments.length<4)base=AST_Node;if(!props)props=[];else props=props.split(/\s+/);var self_props=props;if(base&&base.PROPS)props=props.concat(base.PROPS);var code="return function AST_"+type+"(props){ if (props) { ";for(var i=props.length;--i>=0;){code+="this."+props[i]+" = props."+props[i]+";"}var proto=base&&new base;if(proto&&proto.initialize||methods&&methods.initialize)code+="this.initialize();";code+="}}";var ctor=new Function(code)();if(proto){ctor.prototype=proto;ctor.BASE=base}if(base)base.SUBCLASSES.push(ctor);ctor.prototype.CTOR=ctor;ctor.PROPS=props||null;ctor.SELF_PROPS=self_props;ctor.SUBCLASSES=[];if(type){ctor.prototype.TYPE=ctor.TYPE=type}if(methods)for(i in methods)if(HOP(methods,i)){if(/^\$/.test(i)){ctor[i.substr(1)]=methods[i]}else{ctor.prototype[i]=methods[i]}}ctor.DEFMETHOD=function(name,method){this.prototype[name]=method};if(typeof exports!=="undefined"){exports["AST_"+type]=ctor}return ctor}var AST_Token=DEFNODE("Token","type value line col pos endline endcol endpos nlb comments_before file raw",{},null);var AST_Node=DEFNODE("Node","start end",{clone:function(){return new this.CTOR(this)},$documentation:"Base class of all AST nodes",$propdoc:{start:"[AST_Token] The first token of this node",end:"[AST_Token] The last token of this node"},_walk:function(visitor){return visitor._visit(this)},walk:function(visitor){return this._walk(visitor)}},null);AST_Node.warn_function=null;AST_Node.warn=function(txt,props){if(AST_Node.warn_function)AST_Node.warn_function(string_template(txt,props))};var AST_Statement=DEFNODE("Statement",null,{$documentation:"Base class of all statements"});var AST_Debugger=DEFNODE("Debugger",null,{$documentation:"Represents a debugger statement"},AST_Statement);var AST_Directive=DEFNODE("Directive","value scope quote",{$documentation:'Represents a directive, like "use strict";',$propdoc:{value:"[string] The value of this directive as a plain string (it's not an AST_String!)",scope:"[AST_Scope/S] The scope that this directive affects",quote:"[string] the original quote character"}},AST_Statement);var AST_SimpleStatement=DEFNODE("SimpleStatement","body",{$documentation:"A statement consisting of an expression, i.e. a = 1 + 2",$propdoc:{body:"[AST_Node] an expression node (should not be instanceof AST_Statement)"},_walk:function(visitor){return visitor._visit(this,function(){this.body._walk(visitor)})}},AST_Statement);function walk_body(node,visitor){var body=node.body;if(body instanceof AST_Node){body._walk(visitor)}else for(var i=0,len=body.length;i<len;i++){body[i]._walk(visitor)}}var AST_Block=DEFNODE("Block","body",{$documentation:"A body of statements (usually bracketed)",$propdoc:{body:"[AST_Statement*] an array of statements"},_walk:function(visitor){return visitor._visit(this,function(){walk_body(this,visitor)})}},AST_Statement);var AST_BlockStatement=DEFNODE("BlockStatement",null,{$documentation:"A block statement"},AST_Block);var AST_EmptyStatement=DEFNODE("EmptyStatement",null,{$documentation:"The empty statement (empty block or simply a semicolon)",_walk:function(visitor){return visitor._visit(this)}},AST_Statement);var AST_StatementWithBody=DEFNODE("StatementWithBody","body",{$documentation:"Base class for all statements that contain one nested body: `For`, `ForIn`, `Do`, `While`, `With`",$propdoc:{body:"[AST_Statement] the body; this should always be present, even if it's an AST_EmptyStatement"},_walk:function(visitor){return visitor._visit(this,function(){this.body._walk(visitor)})}},AST_Statement);var AST_LabeledStatement=DEFNODE("LabeledStatement","label",{$documentation:"Statement with a label",$propdoc:{label:"[AST_Label] a label definition"},_walk:function(visitor){return visitor._visit(this,function(){this.label._walk(visitor);this.body._walk(visitor)})}},AST_StatementWithBody);var AST_IterationStatement=DEFNODE("IterationStatement",null,{$documentation:"Internal class. All loops inherit from it."},AST_StatementWithBody);var AST_DWLoop=DEFNODE("DWLoop","condition",{$documentation:"Base class for do/while statements",$propdoc:{condition:"[AST_Node] the loop condition. Should not be instanceof AST_Statement"}},AST_IterationStatement);var AST_Do=DEFNODE("Do",null,{$documentation:"A `do` statement",_walk:function(visitor){return visitor._visit(this,function(){this.body._walk(visitor);this.condition._walk(visitor)})}},AST_DWLoop);var AST_While=DEFNODE("While",null,{$documentation:"A `while` statement",_walk:function(visitor){return visitor._visit(this,function(){this.condition._walk(visitor);this.body._walk(visitor)})}},AST_DWLoop);var AST_For=DEFNODE("For","init condition step",{$documentation:"A `for` statement",$propdoc:{init:"[AST_Node?] the `for` initialization code, or null if empty",condition:"[AST_Node?] the `for` termination clause, or null if empty",step:"[AST_Node?] the `for` update clause, or null if empty"},_walk:function(visitor){return visitor._visit(this,function(){if(this.init)this.init._walk(visitor);if(this.condition)this.condition._walk(visitor);if(this.step)this.step._walk(visitor);this.body._walk(visitor)})}},AST_IterationStatement);var AST_ForIn=DEFNODE("ForIn","init name object",{$documentation:"A `for ... in` statement",$propdoc:{init:"[AST_Node] the `for/in` initialization code",name:"[AST_SymbolRef?] the loop variable, only if `init` is AST_Var",object:"[AST_Node] the object that we're looping through"},_walk:function(visitor){return visitor._visit(this,function(){this.init._walk(visitor);this.object._walk(visitor);this.body._walk(visitor)})}},AST_IterationStatement);var AST_ForOf=DEFNODE("ForOf",null,{$documentation:"A `for ... of` statement"},AST_ForIn);var AST_With=DEFNODE("With","expression",{$documentation:"A `with` statement",$propdoc:{expression:"[AST_Node] the `with` expression"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);this.body._walk(visitor)})}},AST_StatementWithBody);var AST_Scope=DEFNODE("Scope","directives variables functions uses_with uses_eval parent_scope enclosed cname",{$documentation:"Base class for all statements introducing a lexical scope",$propdoc:{directives:"[string*/S] an array of directives declared in this scope",variables:"[Object/S] a map of name -> SymbolDef for all variables/functions defined in this scope",functions:"[Object/S] like `variables`, but only lists function declarations",uses_with:"[boolean/S] tells whether this scope uses the `with` statement",uses_eval:"[boolean/S] tells whether this scope contains a direct call to the global `eval`",parent_scope:"[AST_Scope?/S] link to the parent scope",enclosed:"[SymbolDef*/S] a list of all symbol definitions that are accessed from this scope or any subscopes",cname:"[integer/S] current index for mangling variables (used internally by the mangler)"},get_defun_scope:function(){var self=this;while(self.is_block_scope()&&self.parent_scope){self=self.parent_scope}return self}},AST_Block);var AST_Toplevel=DEFNODE("Toplevel","globals",{$documentation:"The toplevel scope",$propdoc:{globals:"[Object/S] a map of name -> SymbolDef for all undeclared names"},wrap_enclose:function(arg_parameter_pairs){var self=this;var args=[];var parameters=[];arg_parameter_pairs.forEach(function(pair){var splitAt=pair.lastIndexOf(":");args.push(pair.substr(0,splitAt));parameters.push(pair.substr(splitAt+1))});var wrapped_tl="(function("+parameters.join(",")+"){ '$ORIG'; })("+args.join(",")+")";wrapped_tl=parse(wrapped_tl);wrapped_tl=wrapped_tl.transform(new TreeTransformer(function before(node){if(node instanceof AST_Directive&&node.value=="$ORIG"){return MAP.splice(self.body)}}));return wrapped_tl},wrap_commonjs:function(name,export_all){var self=this;var to_export=[];if(export_all){self.figure_out_scope();self.walk(new TreeWalker(function(node){if(node instanceof AST_SymbolDeclaration&&node.definition().global){if(!find_if(function(n){return n.name==node.name},to_export))to_export.push(node)}}))}var wrapped_tl="(function(exports, global){ '$ORIG'; '$EXPORTS'; global['"+name+"'] = exports; }({}, (function(){return this}())))";wrapped_tl=parse(wrapped_tl);wrapped_tl=wrapped_tl.transform(new TreeTransformer(function before(node){if(node instanceof AST_Directive){switch(node.value){case"$ORIG":return MAP.splice(self.body);case"$EXPORTS":var body=[];to_export.forEach(function(sym){body.push(new AST_SimpleStatement({body:new AST_Assign({left:new AST_Sub({expression:new AST_SymbolRef({name:"exports"}),property:new AST_String({value:sym.name})}),operator:"=",right:new AST_SymbolRef(sym)})}))});return MAP.splice(body)}}}));return wrapped_tl}},AST_Scope);var AST_Expansion=DEFNODE("Expansion","expression",{$documentation:"An expandible argument, such as ...rest, a splat, such as [1,2,...all], or an expansion in a variable declaration, such as var [first, ...rest] = list",$propdoc:{expression:"AST_Symbol the thing to be expanded"},_walk:function(visitor){var self=this;return visitor._visit(this,function(){self.expression.walk(visitor)})}});var AST_ArrowParametersOrSeq=DEFNODE("ArrowParametersOrSeq","expressions",{$documentation:'A set of arrow function parameters or a sequence expression. This is used because when the parser sees a "(" it could be the start of a seq, or the start of a parameter list of an arrow function.',$propdoc:{expressions:"[AST_Expression|AST_Destructuring|AST_Expansion*] array of expressions or argument names or destructurings."},as_params:function(croak){var root=this;return this.expressions.map(function to_fun_args(ex,_,__,default_seen_above){var insert_default=function(ex,default_value){if(default_value){return new AST_DefaultAssign({start:ex.start,left:ex,operator:"=",right:default_value,end:default_value.end})}return ex};if(ex instanceof AST_Object){return insert_default(new AST_Destructuring({start:ex.start,end:ex.end,is_array:false,names:ex.properties.map(to_fun_args)}),default_seen_above)}else if(ex instanceof AST_ObjectKeyVal){if(ex.key instanceof AST_SymbolRef){ex.key=to_fun_args(ex.key,0,[ex.key])}ex.value=to_fun_args(ex.value,0,[ex.key]);return insert_default(ex,default_seen_above)}else if(ex instanceof AST_Hole){return ex}else if(ex instanceof AST_Destructuring){if(ex.names.length==0)croak("Invalid destructuring function parameter",ex.start.line,ex.start.col);ex.names=ex.names.map(to_fun_args);return insert_default(ex,default_seen_above)}else if(ex instanceof AST_SymbolRef){return insert_default(new AST_SymbolFunarg({name:ex.name,start:ex.start,end:ex.end}),default_seen_above)}else if(ex instanceof AST_Expansion){ex.expression=to_fun_args(ex.expression);return insert_default(ex,default_seen_above)}else if(ex instanceof AST_Array){return insert_default(new AST_Destructuring({start:ex.start,end:ex.end,is_array:true,names:ex.elements.map(to_fun_args)}),default_seen_above)}else if(ex instanceof AST_Assign){return insert_default(to_fun_args(ex.left,undefined,undefined,ex.right),default_seen_above)}else{croak("Invalid function parameter",ex.start.line,ex.start.col)}})},as_expr:function(croak){return AST_Seq.from_array(this.expressions)}});var AST_Lambda=DEFNODE("Lambda","name argnames uses_arguments is_generator",{$documentation:"Base class for functions",$propdoc:{is_generator:"[boolean] is generatorFn or not",name:"[AST_SymbolDeclaration?] the name of this function",argnames:"[AST_SymbolFunarg|AST_Destructuring|AST_Expansion|AST_DefaultAssign*] array of function arguments, destructurings, or expanding arguments",uses_arguments:"[boolean/S] tells whether this function accesses the arguments array"},args_as_names:function(){var out=[];for(var i=0;i<this.argnames.length;i++){if(this.argnames[i]instanceof AST_Destructuring){out=out.concat(this.argnames[i].all_symbols())}else{out.push(this.argnames[i])}}return out},_walk:function(visitor){return visitor._visit(this,function(){if(this.name)this.name._walk(visitor);var argnames=this.argnames;for(var i=0,len=argnames.length;i<len;i++){argnames[i]._walk(visitor)}walk_body(this,visitor)})}},AST_Scope);var AST_Accessor=DEFNODE("Accessor",null,{$documentation:"A setter/getter function. The `name` property is always null."},AST_Lambda);var AST_Function=DEFNODE("Function",null,{$documentation:"A function expression"},AST_Lambda);var AST_Arrow=DEFNODE("Arrow",null,{$documentation:"An ES6 Arrow function ((a) => b)"},AST_Lambda);var AST_Defun=DEFNODE("Defun",null,{$documentation:"A function definition"},AST_Lambda);var AST_Destructuring=DEFNODE("Destructuring","names is_array",{$documentation:"A destructuring of several names. Used in destructuring assignment and with destructuring function argument names",$propdoc:{names:"[AST_Node*] Array of properties or elements",is_array:"[Boolean] Whether the destructuring represents an object or array"},_walk:function(visitor){return visitor._visit(this,function(){this.names.forEach(function(name){name._walk(visitor)})})},all_symbols:function(){var out=[];this.walk(new TreeWalker(function(node){if(node instanceof AST_Symbol){out.push(node)}if(node instanceof AST_Expansion){out.push(node.expression)}}));return out}});var AST_PrefixedTemplateString=DEFNODE("PrefixedTemplateString","template_string prefix",{$documentation:"A templatestring with a prefix, such as String.raw`foobarbaz`",$propdoc:{template_string:"[AST_TemplateString] The template string",prefix:"[AST_SymbolRef|AST_PropAccess] The prefix, which can be a symbol such as `foo` or a dotted expression such as `String.raw`."},_walk:function(visitor){this.prefix._walk(visitor);this.template_string._walk(visitor)}});var AST_TemplateString=DEFNODE("TemplateString","segments",{$documentation:"A template string literal",$propdoc:{segments:"[AST_TemplateSegment|AST_Expression]* One or more segments, starting with AST_TemplateSegment. AST_Expression may follow AST_TemplateSegment, but each AST_Expression must be followed by AST_TemplateSegment."},_walk:function(visitor){return visitor._visit(this,function(){this.segments.forEach(function(seg,i){if(i%2!==0){seg._walk(visitor)}})})}});var AST_TemplateSegment=DEFNODE("TemplateSegment","value raw",{$documentation:"A segment of a template string literal",$propdoc:{value:"Content of the segment",raw:"Raw content of the segment"}});var AST_Jump=DEFNODE("Jump",null,{$documentation:"Base class for “jumps” (for now that's `return`, `throw`, `break` and `continue`)"},AST_Statement);var AST_Exit=DEFNODE("Exit","value",{$documentation:"Base class for “exits” (`return` and `throw`)",$propdoc:{value:"[AST_Node?] the value returned or thrown by this statement; could be null for AST_Return"},_walk:function(visitor){return visitor._visit(this,this.value&&function(){this.value._walk(visitor)})}},AST_Jump);var AST_Return=DEFNODE("Return",null,{$documentation:"A `return` statement"},AST_Exit);var AST_Throw=DEFNODE("Throw",null,{$documentation:"A `throw` statement"},AST_Exit);var AST_LoopControl=DEFNODE("LoopControl","label",{$documentation:"Base class for loop control statements (`break` and `continue`)",$propdoc:{label:"[AST_LabelRef?] the label, or null if none"},_walk:function(visitor){return visitor._visit(this,this.label&&function(){this.label._walk(visitor)})}},AST_Jump);var AST_Break=DEFNODE("Break",null,{$documentation:"A `break` statement"},AST_LoopControl);var AST_Continue=DEFNODE("Continue",null,{$documentation:"A `continue` statement"},AST_LoopControl);var AST_If=DEFNODE("If","condition alternative",{$documentation:"A `if` statement",$propdoc:{condition:"[AST_Node] the `if` condition",alternative:"[AST_Statement?] the `else` part, or null if not present"},_walk:function(visitor){return visitor._visit(this,function(){this.condition._walk(visitor);this.body._walk(visitor);if(this.alternative)this.alternative._walk(visitor)})}},AST_StatementWithBody);var AST_Switch=DEFNODE("Switch","expression",{$documentation:"A `switch` statement",$propdoc:{expression:"[AST_Node] the `switch` “discriminant”"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);walk_body(this,visitor)})}},AST_Block);var AST_SwitchBranch=DEFNODE("SwitchBranch",null,{$documentation:"Base class for `switch` branches"},AST_Block);var AST_Default=DEFNODE("Default",null,{$documentation:"A `default` switch branch"},AST_SwitchBranch);var AST_Case=DEFNODE("Case","expression",{$documentation:"A `case` switch branch",$propdoc:{expression:"[AST_Node] the `case` expression"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);walk_body(this,visitor)})}},AST_SwitchBranch);var AST_Try=DEFNODE("Try","bcatch bfinally",{$documentation:"A `try` statement",$propdoc:{bcatch:"[AST_Catch?] the catch block, or null if not present",bfinally:"[AST_Finally?] the finally block, or null if not present"},_walk:function(visitor){return visitor._visit(this,function(){walk_body(this,visitor);if(this.bcatch)this.bcatch._walk(visitor);if(this.bfinally)this.bfinally._walk(visitor)})}},AST_Block);var AST_Catch=DEFNODE("Catch","argname",{$documentation:"A `catch` node; only makes sense as part of a `try` statement",$propdoc:{argname:"[AST_SymbolCatch|AST_Destructuring|AST_Expansion|AST_DefaultAssign] symbol for the exception"},_walk:function(visitor){return visitor._visit(this,function(){this.argname._walk(visitor);walk_body(this,visitor)})}},AST_Block);var AST_Finally=DEFNODE("Finally",null,{$documentation:"A `finally` node; only makes sense as part of a `try` statement"},AST_Block);var AST_Definitions=DEFNODE("Definitions","definitions",{$documentation:"Base class for `var` or `const` nodes (variable declarations/initializations)",$propdoc:{definitions:"[AST_VarDef*] array of variable definitions"},_walk:function(visitor){return visitor._visit(this,function(){var definitions=this.definitions;for(var i=0,len=definitions.length;i<len;i++){definitions[i]._walk(visitor)}})}},AST_Statement);var AST_Var=DEFNODE("Var",null,{$documentation:"A `var` statement"},AST_Definitions);var AST_Let=DEFNODE("Let",null,{$documentation:"A `let` statement"},AST_Definitions);var AST_Const=DEFNODE("Const",null,{$documentation:"A `const` statement"},AST_Definitions);var AST_NameImport=DEFNODE("NameImport","foreign_name name",{$documentation:"The part of the import statement that imports names from a module.",$propdoc:{foreign_name:"[AST_SymbolImportForeign] The name being imported (as specified in the module)",name:"[AST_SymbolImport] The name as it becomes available to this module."},_walk:function(visitor){return visitor._visit(this,function(){this.foreign_name._walk(visitor);this.name._walk(visitor)})}});var AST_Import=DEFNODE("Import","imported_name imported_names module_name",{$documentation:"An `import` statement",$propdoc:{imported_name:"[AST_SymbolImport] The name of the variable holding the module's default export.",imported_names:"[AST_NameImport*] The names of non-default imported variables",module_name:"[AST_String] String literal describing where this module came from"},_walk:function(visitor){return visitor._visit(this,function(){if(this.imported_name){this.imported_name._walk(visitor)}if(this.imported_names){this.imported_names.forEach(function(name_import){name_import._walk(visitor)})}this.module_name._walk(visitor)})}});var AST_Export=DEFNODE("Export","exported_definition exported_value is_default",{$documentation:"An `export` statement",$propdoc:{exported_definition:"[AST_Defun|AST_Definitions|AST_DefClass?] An exported definition",exported_value:"[AST_Node?] An exported value",is_default:"[Boolean] Whether this is the default exported value of this module"},_walk:function(visitor){visitor._visit(this,function(){if(this.exported_definition){this.exported_definition._walk(visitor)}if(this.exported_value){this.exported_value._walk(visitor)}})}},AST_Statement);var AST_VarDef=DEFNODE("VarDef","name value",{$documentation:"A variable declaration; only appears in a AST_Definitions node",$propdoc:{name:"[AST_SymbolVar|AST_SymbolConst|AST_Destructuring] name of the variable",value:"[AST_Node?] initializer, or null of there's no initializer"},is_destructuring:function(){return this.name instanceof AST_Destructuring},_walk:function(visitor){return visitor._visit(this,function(){this.name._walk(visitor);if(this.value)this.value._walk(visitor)})}});var AST_Call=DEFNODE("Call","expression args",{$documentation:"A function call expression",$propdoc:{expression:"[AST_Node] expression to invoke as function",args:"[AST_Node*] array of arguments"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);var args=this.args;for(var i=0,len=args.length;i<len;i++){args[i]._walk(visitor)}})}});var AST_New=DEFNODE("New",null,{$documentation:"An object instantiation. Derives from a function call since it has exactly the same properties"},AST_Call);var AST_Seq=DEFNODE("Seq","car cdr",{$documentation:"A sequence expression (two comma-separated expressions)",$propdoc:{car:"[AST_Node] first element in sequence",cdr:"[AST_Node] second element in sequence"},$cons:function(x,y){var seq=new AST_Seq(x);seq.car=x;seq.cdr=y;return seq},$from_array:function(array){if(array.length==0)return null;if(array.length==1)return array[0].clone();var list=null;for(var i=array.length;--i>=0;){list=AST_Seq.cons(array[i],list)}var p=list;while(p){if(p.cdr&&!p.cdr.cdr){p.cdr=p.cdr.car;break}p=p.cdr}return list},to_array:function(){var p=this,a=[];while(p){a.push(p.car);if(p.cdr&&!(p.cdr instanceof AST_Seq)){a.push(p.cdr);break}p=p.cdr}return a},add:function(node){var p=this;while(p){if(!(p.cdr instanceof AST_Seq)){var cell=AST_Seq.cons(p.cdr,node);return p.cdr=cell}p=p.cdr}},len:function(){if(this.cdr instanceof AST_Seq){return this.cdr.len()+1}else{return 2}},_walk:function(visitor){return visitor._visit(this,function(){this.car._walk(visitor);if(this.cdr)this.cdr._walk(visitor)})}});var AST_PropAccess=DEFNODE("PropAccess","expression property",{$documentation:'Base class for property access expressions, i.e. `a.foo` or `a["foo"]`',$propdoc:{expression:"[AST_Node] the “container” expression",property:"[AST_Node|string] the property to access. For AST_Dot this is always a plain string, while for AST_Sub it's an arbitrary AST_Node"}});var AST_Dot=DEFNODE("Dot",null,{$documentation:"A dotted property access expression",_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor)})}},AST_PropAccess);var AST_Sub=DEFNODE("Sub",null,{$documentation:'Index-style property access, i.e. `a["foo"]`',_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);this.property._walk(visitor)})}},AST_PropAccess);var AST_Unary=DEFNODE("Unary","operator expression",{$documentation:"Base class for unary expressions",$propdoc:{operator:"[string] the operator",expression:"[AST_Node] expression that this unary operator applies to"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor)})}});var AST_UnaryPrefix=DEFNODE("UnaryPrefix",null,{$documentation:"Unary prefix expression, i.e. `typeof i` or `++i`"},AST_Unary);var AST_UnaryPostfix=DEFNODE("UnaryPostfix",null,{$documentation:"Unary postfix expression, i.e. `i++`"},AST_Unary);var AST_Binary=DEFNODE("Binary","left operator right",{$documentation:"Binary expression, i.e. `a + b`",$propdoc:{left:"[AST_Node] left-hand side expression",operator:"[string] the operator",right:"[AST_Node] right-hand side expression"},_walk:function(visitor){return visitor._visit(this,function(){this.left._walk(visitor);this.right._walk(visitor)})}});var AST_Conditional=DEFNODE("Conditional","condition consequent alternative",{$documentation:"Conditional expression using the ternary operator, i.e. `a ? b : c`",$propdoc:{condition:"[AST_Node]",consequent:"[AST_Node]",alternative:"[AST_Node]"},_walk:function(visitor){return visitor._visit(this,function(){this.condition._walk(visitor);this.consequent._walk(visitor);this.alternative._walk(visitor)})}});var AST_Assign=DEFNODE("Assign",null,{$documentation:"An assignment expression — `a = b + 5`"},AST_Binary);var AST_DefaultAssign=DEFNODE("DefaultAssign",null,{$documentation:"A default assignment expression like in `(a = 3) => a`"},AST_Binary);var AST_Array=DEFNODE("Array","elements",{$documentation:"An array literal",$propdoc:{elements:"[AST_Node*] array of elements"},_walk:function(visitor){return visitor._visit(this,function(){var elements=this.elements;for(var i=0,len=elements.length;i<len;i++){elements[i]._walk(visitor)}})}});var AST_Object=DEFNODE("Object","properties",{$documentation:"An object literal",$propdoc:{properties:"[AST_ObjectProperty*] array of properties"},_walk:function(visitor){return visitor._visit(this,function(){var properties=this.properties;for(var i=0,len=properties.length;i<len;i++){properties[i]._walk(visitor)}})}});var AST_ObjectProperty=DEFNODE("ObjectProperty","key value",{$documentation:"Base class for literal object properties",$propdoc:{key:"[string|AST_Node] the property name converted to a string for ObjectKeyVal. For setters, getters and computed property this is an arbitrary AST_Node",value:"[AST_Node] property value. For setters and getters this is an AST_Function."},_walk:function(visitor){return visitor._visit(this,function(){if(this.key instanceof AST_Node)this.key._walk(visitor);this.value._walk(visitor)})}});var AST_ObjectKeyVal=DEFNODE("ObjectKeyVal","quote",{$documentation:"A key: value object property",$propdoc:{quote:"[string] the original quote character"}},AST_ObjectProperty);var AST_ObjectSetter=DEFNODE("ObjectSetter","quote static",{$propdoc:{quote:"[string|undefined] the original quote character, if any",static:"[boolean] whether this is a static setter (classes only)"},$documentation:"An object setter property"},AST_ObjectProperty);var AST_ObjectGetter=DEFNODE("ObjectGetter","quote static",{$propdoc:{quote:"[string|undefined] the original quote character, if any",static:"[boolean] whether this is a static getter (classes only)"},$documentation:"An object getter property"},AST_ObjectProperty);var AST_ConciseMethod=DEFNODE("ConciseMethod","quote static is_generator",{$propdoc:{quote:"[string|undefined] the original quote character, if any",static:"[boolean] whether this method is static (classes only)",is_generator:"[boolean] is generatorFn or not"},$documentation:"An ES6 concise method inside an object or class"},AST_ObjectProperty);var AST_Class=DEFNODE("Class","name extends properties",{$propdoc:{name:"[AST_SymbolClass|AST_SymbolDefClass?] optional class name.",extends:"[AST_Node]? optional parent class",properties:"[AST_ObjectProperty*] array of properties"},$documentation:"An ES6 class",_walk:function(visitor){return visitor._visit(this,function(){if(this.name){this.name._walk(visitor)}if(this.extends){this.extends._walk(visitor)}this.properties.forEach(function(prop){prop._walk(visitor)})})}},AST_Scope);var AST_DefClass=DEFNODE("DefClass",null,{$documentation:"A class definition"},AST_Class);var AST_ClassExpression=DEFNODE("ClassExpression",null,{$documentation:"A class expression."},AST_Class);var AST_Symbol=DEFNODE("Symbol","scope name thedef",{$propdoc:{name:"[string] name of this symbol",scope:"[AST_Scope/S] the current scope (not necessarily the definition scope)",thedef:"[SymbolDef/S] the definition of this symbol"},$documentation:"Base class for all symbols"});var AST_NewTarget=DEFNODE("NewTarget",null,{$documentation:"A reference to new.target"});var AST_SymbolAccessor=DEFNODE("SymbolAccessor",null,{$documentation:"The name of a property accessor (setter/getter function)"},AST_Symbol);var AST_SymbolDeclaration=DEFNODE("SymbolDeclaration","init",{$documentation:"A declaration symbol (symbol in var/const, function name or argument, symbol in catch)",$propdoc:{init:"[AST_Node*/S] array of initializers for this declaration."}},AST_Symbol);var AST_SymbolVar=DEFNODE("SymbolVar",null,{$documentation:"Symbol defining a variable"},AST_SymbolDeclaration);var AST_SymbolBlockDeclaration=DEFNODE("SymbolBlockDeclaration",null,{$documentation:"Base class for block-scoped declaration symbols"},AST_SymbolDeclaration);var AST_SymbolConst=DEFNODE("SymbolConst",null,{$documentation:"A constant declaration"},AST_SymbolBlockDeclaration);var AST_SymbolLet=DEFNODE("SymbolLet",null,{$documentation:"A block-scoped `let` declaration"},AST_SymbolBlockDeclaration);var AST_SymbolFunarg=DEFNODE("SymbolFunarg",null,{$documentation:"Symbol naming a function argument"},AST_SymbolVar);var AST_SymbolDefun=DEFNODE("SymbolDefun",null,{$documentation:"Symbol defining a function"},AST_SymbolDeclaration);var AST_SymbolMethod=DEFNODE("SymbolMethod",null,{$documentation:"Symbol in an object defining a method"},AST_Symbol);var AST_SymbolLambda=DEFNODE("SymbolLambda",null,{$documentation:"Symbol naming a function expression"},AST_SymbolDeclaration);var AST_SymbolDefClass=DEFNODE("SymbolDefClass",null,{$documentation:"Symbol naming a class's name in a class declaration. Lexically scoped to its containing scope, and accessible within the class."},AST_SymbolBlockDeclaration);var AST_SymbolClass=DEFNODE("SymbolClass",null,{$documentation:"Symbol naming a class's name. Lexically scoped to the class."},AST_SymbolDeclaration);var AST_SymbolCatch=DEFNODE("SymbolCatch",null,{$documentation:"Symbol naming the exception in catch"},AST_SymbolBlockDeclaration);var AST_SymbolImport=DEFNODE("SymbolImport",null,{$documentation:"Symbol refering to an imported name"},AST_SymbolBlockDeclaration);var AST_SymbolImportForeign=DEFNODE("SymbolImportForeign",null,{$documentation:"A symbol imported from a module, but it is defined in the other module, and its real name is irrelevant for this module's purposes"},AST_Symbol);var AST_Label=DEFNODE("Label","references",{$documentation:"Symbol naming a label (declaration)",$propdoc:{references:"[AST_LoopControl*] a list of nodes referring to this label"},initialize:function(){this.references=[];this.thedef=this}},AST_Symbol);var AST_SymbolRef=DEFNODE("SymbolRef",null,{$documentation:"Reference to some symbol (not definition/declaration)"},AST_Symbol);var AST_LabelRef=DEFNODE("LabelRef",null,{$documentation:"Reference to a label symbol"},AST_Symbol);var AST_This=DEFNODE("This",null,{$documentation:"The `this` symbol"},AST_Symbol);var AST_Super=DEFNODE("Super",null,{$documentation:"The `super` symbol"},AST_Symbol);var AST_Constant=DEFNODE("Constant",null,{$documentation:"Base class for all constants",getValue:function(){return this.value}});var AST_String=DEFNODE("String","value quote",{$documentation:"A string literal",$propdoc:{value:"[string] the contents of this string",quote:"[string] the original quote character"}},AST_Constant);var AST_Number=DEFNODE("Number","value literal",{$documentation:"A number literal",$propdoc:{value:"[number] the numeric value",literal:"[string] numeric value as string (optional)"}},AST_Constant);var AST_RegExp=DEFNODE("RegExp","value",{$documentation:"A regexp literal",$propdoc:{value:"[RegExp] the actual regexp"}},AST_Constant);var AST_Atom=DEFNODE("Atom",null,{$documentation:"Base class for atoms"},AST_Constant);var AST_Null=DEFNODE("Null",null,{$documentation:"The `null` atom",value:null},AST_Atom);var AST_NaN=DEFNODE("NaN",null,{$documentation:"The impossible value",value:0/0},AST_Atom);var AST_Undefined=DEFNODE("Undefined",null,{$documentation:"The `undefined` value",value:function(){}()},AST_Atom);var AST_Hole=DEFNODE("Hole",null,{$documentation:"A hole in an array",value:function(){}()},AST_Atom);var AST_Infinity=DEFNODE("Infinity",null,{$documentation:"The `Infinity` value",value:1/0},AST_Atom);var AST_Boolean=DEFNODE("Boolean",null,{$documentation:"Base class for booleans"},AST_Atom);var AST_False=DEFNODE("False",null,{$documentation:"The `false` atom",value:false},AST_Boolean);var AST_True=DEFNODE("True",null,{$documentation:"The `true` atom",value:true},AST_Boolean);var AST_Yield=DEFNODE("Yield","expression is_star",{$documentation:"A `yield` statement",$propdoc:{
-expression:"[AST_Node?] the value returned or thrown by this statement; could be null (representing undefined) but only when is_star is set to false",is_star:"[Boolean] Whether this is a yield or yield* statement"},_walk:function(visitor){return visitor._visit(this,this.expression&&function(){this.expression._walk(visitor)})}});function TreeWalker(callback){this.visit=callback;this.stack=[];this.directives=Object.create(null)}TreeWalker.prototype={_visit:function(node,descend){this.push(node);var ret=this.visit(node,descend?function(){descend.call(node)}:noop);if(!ret&&descend){descend.call(node)}this.pop(node);return ret},parent:function(n){return this.stack[this.stack.length-2-(n||0)]},push:function(node){if(node instanceof AST_Lambda){this.directives=Object.create(this.directives)}else if(node instanceof AST_Directive){this.directives[node.value]=this.directives[node.value]?"up":true}else if(node instanceof AST_Class){this.directives=Object.create(this.directives);this.directives["use strict"]=this.directives["use strict"]?"up":true}this.stack.push(node)},pop:function(node){this.stack.pop();if(node instanceof AST_Lambda||node instanceof AST_Class){this.directives=Object.getPrototypeOf(this.directives)}},self:function(){return this.stack[this.stack.length-1]},find_parent:function(type){var stack=this.stack;for(var i=stack.length;--i>=0;){var x=stack[i];if(x instanceof type)return x}},has_directive:function(type){var dir=this.directives[type];if(dir)return dir;var node=this.stack[this.stack.length-1];if(node instanceof AST_Scope&&node.body){for(var i=0;i<node.body.length;++i){var st=node.body[i];if(!(st instanceof AST_Directive))break;if(st.value==type)return true}}},in_boolean_context:function(){var stack=this.stack;var i=stack.length,self=stack[--i];while(i>0){var p=stack[--i];if(p instanceof AST_If&&p.condition===self||p instanceof AST_Conditional&&p.condition===self||p instanceof AST_DWLoop&&p.condition===self||p instanceof AST_For&&p.condition===self||p instanceof AST_UnaryPrefix&&p.operator=="!"&&p.expression===self){return true}if(!(p instanceof AST_Binary&&(p.operator=="&&"||p.operator=="||")))return false;self=p}},loopcontrol_target:function(label){var stack=this.stack;if(label)for(var i=stack.length;--i>=0;){var x=stack[i];if(x instanceof AST_LabeledStatement&&x.label.name==label.name){return x.body}}else for(var i=stack.length;--i>=0;){var x=stack[i];if(x instanceof AST_Switch||x instanceof AST_IterationStatement)return x}}};/***********************************************************************
+"use strict";function DEFNODE(type,props,methods,base){if(arguments.length<4)base=AST_Node;if(!props)props=[];else props=props.split(/\s+/);var self_props=props;if(base&&base.PROPS)props=props.concat(base.PROPS);var code="return function AST_"+type+"(props){ if (props) { ";for(var i=props.length;--i>=0;){code+="this."+props[i]+" = props."+props[i]+";"}var proto=base&&new base;if(proto&&proto.initialize||methods&&methods.initialize)code+="this.initialize();";code+="}}";var ctor=new Function(code)();if(proto){ctor.prototype=proto;ctor.BASE=base}if(base)base.SUBCLASSES.push(ctor);ctor.prototype.CTOR=ctor;ctor.PROPS=props||null;ctor.SELF_PROPS=self_props;ctor.SUBCLASSES=[];if(type){ctor.prototype.TYPE=ctor.TYPE=type}if(methods)for(i in methods)if(HOP(methods,i)){if(/^\$/.test(i)){ctor[i.substr(1)]=methods[i]}else{ctor.prototype[i]=methods[i]}}ctor.DEFMETHOD=function(name,method){this.prototype[name]=method};if(typeof exports!=="undefined"){exports["AST_"+type]=ctor}return ctor}var AST_Token=DEFNODE("Token","type value line col pos endline endcol endpos nlb comments_before file raw",{},null);var AST_Node=DEFNODE("Node","start end",{clone:function(){return new this.CTOR(this)},$documentation:"Base class of all AST nodes",$propdoc:{start:"[AST_Token] The first token of this node",end:"[AST_Token] The last token of this node"},_walk:function(visitor){return visitor._visit(this)},walk:function(visitor){return this._walk(visitor)}},null);AST_Node.warn_function=null;AST_Node.warn=function(txt,props){if(AST_Node.warn_function)AST_Node.warn_function(string_template(txt,props))};var AST_Statement=DEFNODE("Statement",null,{$documentation:"Base class of all statements"});var AST_Debugger=DEFNODE("Debugger",null,{$documentation:"Represents a debugger statement"},AST_Statement);var AST_Directive=DEFNODE("Directive","value scope quote",{$documentation:'Represents a directive, like "use strict";',$propdoc:{value:"[string] The value of this directive as a plain string (it's not an AST_String!)",scope:"[AST_Scope/S] The scope that this directive affects",quote:"[string] the original quote character"}},AST_Statement);var AST_SimpleStatement=DEFNODE("SimpleStatement","body",{$documentation:"A statement consisting of an expression, i.e. a = 1 + 2",$propdoc:{body:"[AST_Node] an expression node (should not be instanceof AST_Statement)"},_walk:function(visitor){return visitor._visit(this,function(){this.body._walk(visitor)})}},AST_Statement);function walk_body(node,visitor){var body=node.body;if(body instanceof AST_Statement){body._walk(visitor)}else for(var i=0,len=body.length;i<len;i++){body[i]._walk(visitor)}}var AST_Block=DEFNODE("Block","body",{$documentation:"A body of statements (usually bracketed)",$propdoc:{body:"[AST_Statement*] an array of statements"},_walk:function(visitor){return visitor._visit(this,function(){walk_body(this,visitor)})}},AST_Statement);var AST_BlockStatement=DEFNODE("BlockStatement",null,{$documentation:"A block statement"},AST_Block);var AST_EmptyStatement=DEFNODE("EmptyStatement",null,{$documentation:"The empty statement (empty block or simply a semicolon)",_walk:function(visitor){return visitor._visit(this)}},AST_Statement);var AST_StatementWithBody=DEFNODE("StatementWithBody","body",{$documentation:"Base class for all statements that contain one nested body: `For`, `ForIn`, `Do`, `While`, `With`",$propdoc:{body:"[AST_Statement] the body; this should always be present, even if it's an AST_EmptyStatement"},_walk:function(visitor){return visitor._visit(this,function(){this.body._walk(visitor)})}},AST_Statement);var AST_LabeledStatement=DEFNODE("LabeledStatement","label",{$documentation:"Statement with a label",$propdoc:{label:"[AST_Label] a label definition"},_walk:function(visitor){return visitor._visit(this,function(){this.label._walk(visitor);this.body._walk(visitor)})}},AST_StatementWithBody);var AST_IterationStatement=DEFNODE("IterationStatement",null,{$documentation:"Internal class. All loops inherit from it."},AST_StatementWithBody);var AST_DWLoop=DEFNODE("DWLoop","condition",{$documentation:"Base class for do/while statements",$propdoc:{condition:"[AST_Node] the loop condition. Should not be instanceof AST_Statement"}},AST_IterationStatement);var AST_Do=DEFNODE("Do",null,{$documentation:"A `do` statement",_walk:function(visitor){return visitor._visit(this,function(){this.body._walk(visitor);this.condition._walk(visitor)})}},AST_DWLoop);var AST_While=DEFNODE("While",null,{$documentation:"A `while` statement",_walk:function(visitor){return visitor._visit(this,function(){this.condition._walk(visitor);this.body._walk(visitor)})}},AST_DWLoop);var AST_For=DEFNODE("For","init condition step",{$documentation:"A `for` statement",$propdoc:{init:"[AST_Node?] the `for` initialization code, or null if empty",condition:"[AST_Node?] the `for` termination clause, or null if empty",step:"[AST_Node?] the `for` update clause, or null if empty"},_walk:function(visitor){return visitor._visit(this,function(){if(this.init)this.init._walk(visitor);if(this.condition)this.condition._walk(visitor);if(this.step)this.step._walk(visitor);this.body._walk(visitor)})}},AST_IterationStatement);var AST_ForIn=DEFNODE("ForIn","init name object",{$documentation:"A `for ... in` statement",$propdoc:{init:"[AST_Node] the `for/in` initialization code",name:"[AST_SymbolRef?] the loop variable, only if `init` is AST_Var",object:"[AST_Node] the object that we're looping through"},_walk:function(visitor){return visitor._visit(this,function(){this.init._walk(visitor);this.object._walk(visitor);this.body._walk(visitor)})}},AST_IterationStatement);var AST_With=DEFNODE("With","expression",{$documentation:"A `with` statement",$propdoc:{expression:"[AST_Node] the `with` expression"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);this.body._walk(visitor)})}},AST_StatementWithBody);var AST_Scope=DEFNODE("Scope","directives variables functions uses_with uses_eval parent_scope enclosed cname",{$documentation:"Base class for all statements introducing a lexical scope",$propdoc:{directives:"[string*/S] an array of directives declared in this scope",variables:"[Object/S] a map of name -> SymbolDef for all variables/functions defined in this scope",functions:"[Object/S] like `variables`, but only lists function declarations",uses_with:"[boolean/S] tells whether this scope uses the `with` statement",uses_eval:"[boolean/S] tells whether this scope contains a direct call to the global `eval`",parent_scope:"[AST_Scope?/S] link to the parent scope",enclosed:"[SymbolDef*/S] a list of all symbol definitions that are accessed from this scope or any subscopes",cname:"[integer/S] current index for mangling variables (used internally by the mangler)"}},AST_Block);var AST_Toplevel=DEFNODE("Toplevel","globals",{$documentation:"The toplevel scope",$propdoc:{globals:"[Object/S] a map of name -> SymbolDef for all undeclared names"},wrap_enclose:function(arg_parameter_pairs){var self=this;var args=[];var parameters=[];arg_parameter_pairs.forEach(function(pair){var splitAt=pair.lastIndexOf(":");args.push(pair.substr(0,splitAt));parameters.push(pair.substr(splitAt+1))});var wrapped_tl="(function("+parameters.join(",")+"){ '$ORIG'; })("+args.join(",")+")";wrapped_tl=parse(wrapped_tl);wrapped_tl=wrapped_tl.transform(new TreeTransformer(function before(node){if(node instanceof AST_Directive&&node.value=="$ORIG"){return MAP.splice(self.body)}}));return wrapped_tl},wrap_commonjs:function(name,export_all){var self=this;var to_export=[];if(export_all){self.figure_out_scope();self.walk(new TreeWalker(function(node){if(node instanceof AST_SymbolDeclaration&&node.definition().global){if(!find_if(function(n){return n.name==node.name},to_export))to_export.push(node)}}))}var wrapped_tl="(function(exports, global){ '$ORIG'; '$EXPORTS'; global['"+name+"'] = exports; }({}, (function(){return this}())))";wrapped_tl=parse(wrapped_tl);wrapped_tl=wrapped_tl.transform(new TreeTransformer(function before(node){if(node instanceof AST_Directive){switch(node.value){case"$ORIG":return MAP.splice(self.body);case"$EXPORTS":var body=[];to_export.forEach(function(sym){body.push(new AST_SimpleStatement({body:new AST_Assign({left:new AST_Sub({expression:new AST_SymbolRef({name:"exports"}),property:new AST_String({value:sym.name})}),operator:"=",right:new AST_SymbolRef(sym)})}))});return MAP.splice(body)}}}));return wrapped_tl}},AST_Scope);var AST_Lambda=DEFNODE("Lambda","name argnames uses_arguments",{$documentation:"Base class for functions",$propdoc:{name:"[AST_SymbolDeclaration?] the name of this function",argnames:"[AST_SymbolFunarg*] array of function arguments",uses_arguments:"[boolean/S] tells whether this function accesses the arguments array"},_walk:function(visitor){return visitor._visit(this,function(){if(this.name)this.name._walk(visitor);var argnames=this.argnames;for(var i=0,len=argnames.length;i<len;i++){argnames[i]._walk(visitor)}walk_body(this,visitor)})}},AST_Scope);var AST_Accessor=DEFNODE("Accessor",null,{$documentation:"A setter/getter function. The `name` property is always null."},AST_Lambda);var AST_Function=DEFNODE("Function",null,{$documentation:"A function expression"},AST_Lambda);var AST_Defun=DEFNODE("Defun",null,{$documentation:"A function definition"},AST_Lambda);var AST_Jump=DEFNODE("Jump",null,{$documentation:"Base class for “jumps” (for now that's `return`, `throw`, `break` and `continue`)"},AST_Statement);var AST_Exit=DEFNODE("Exit","value",{$documentation:"Base class for “exits” (`return` and `throw`)",$propdoc:{value:"[AST_Node?] the value returned or thrown by this statement; could be null for AST_Return"},_walk:function(visitor){return visitor._visit(this,this.value&&function(){this.value._walk(visitor)})}},AST_Jump);var AST_Return=DEFNODE("Return",null,{$documentation:"A `return` statement"},AST_Exit);var AST_Throw=DEFNODE("Throw",null,{$documentation:"A `throw` statement"},AST_Exit);var AST_LoopControl=DEFNODE("LoopControl","label",{$documentation:"Base class for loop control statements (`break` and `continue`)",$propdoc:{label:"[AST_LabelRef?] the label, or null if none"},_walk:function(visitor){return visitor._visit(this,this.label&&function(){this.label._walk(visitor)})}},AST_Jump);var AST_Break=DEFNODE("Break",null,{$documentation:"A `break` statement"},AST_LoopControl);var AST_Continue=DEFNODE("Continue",null,{$documentation:"A `continue` statement"},AST_LoopControl);var AST_If=DEFNODE("If","condition alternative",{$documentation:"A `if` statement",$propdoc:{condition:"[AST_Node] the `if` condition",alternative:"[AST_Statement?] the `else` part, or null if not present"},_walk:function(visitor){return visitor._visit(this,function(){this.condition._walk(visitor);this.body._walk(visitor);if(this.alternative)this.alternative._walk(visitor)})}},AST_StatementWithBody);var AST_Switch=DEFNODE("Switch","expression",{$documentation:"A `switch` statement",$propdoc:{expression:"[AST_Node] the `switch` “discriminant”"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);walk_body(this,visitor)})}},AST_Block);var AST_SwitchBranch=DEFNODE("SwitchBranch",null,{$documentation:"Base class for `switch` branches"},AST_Block);var AST_Default=DEFNODE("Default",null,{$documentation:"A `default` switch branch"},AST_SwitchBranch);var AST_Case=DEFNODE("Case","expression",{$documentation:"A `case` switch branch",$propdoc:{expression:"[AST_Node] the `case` expression"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);walk_body(this,visitor)})}},AST_SwitchBranch);var AST_Try=DEFNODE("Try","bcatch bfinally",{$documentation:"A `try` statement",$propdoc:{bcatch:"[AST_Catch?] the catch block, or null if not present",bfinally:"[AST_Finally?] the finally block, or null if not present"},_walk:function(visitor){return visitor._visit(this,function(){walk_body(this,visitor);if(this.bcatch)this.bcatch._walk(visitor);if(this.bfinally)this.bfinally._walk(visitor)})}},AST_Block);var AST_Catch=DEFNODE("Catch","argname",{$documentation:"A `catch` node; only makes sense as part of a `try` statement",$propdoc:{argname:"[AST_SymbolCatch] symbol for the exception"},_walk:function(visitor){return visitor._visit(this,function(){this.argname._walk(visitor);walk_body(this,visitor)})}},AST_Block);var AST_Finally=DEFNODE("Finally",null,{$documentation:"A `finally` node; only makes sense as part of a `try` statement"},AST_Block);var AST_Definitions=DEFNODE("Definitions","definitions",{$documentation:"Base class for `var` or `const` nodes (variable declarations/initializations)",$propdoc:{definitions:"[AST_VarDef*] array of variable definitions"},_walk:function(visitor){return visitor._visit(this,function(){var definitions=this.definitions;for(var i=0,len=definitions.length;i<len;i++){definitions[i]._walk(visitor)}})}},AST_Statement);var AST_Var=DEFNODE("Var",null,{$documentation:"A `var` statement"},AST_Definitions);var AST_Const=DEFNODE("Const",null,{$documentation:"A `const` statement"},AST_Definitions);var AST_VarDef=DEFNODE("VarDef","name value",{$documentation:"A variable declaration; only appears in a AST_Definitions node",$propdoc:{name:"[AST_SymbolVar|AST_SymbolConst] name of the variable",value:"[AST_Node?] initializer, or null of there's no initializer"},_walk:function(visitor){return visitor._visit(this,function(){this.name._walk(visitor);if(this.value)this.value._walk(visitor)})}});var AST_Call=DEFNODE("Call","expression args",{$documentation:"A function call expression",$propdoc:{expression:"[AST_Node] expression to invoke as function",args:"[AST_Node*] array of arguments"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);var args=this.args;for(var i=0,len=args.length;i<len;i++){args[i]._walk(visitor)}})}});var AST_New=DEFNODE("New",null,{$documentation:"An object instantiation. Derives from a function call since it has exactly the same properties"},AST_Call);var AST_Seq=DEFNODE("Seq","car cdr",{$documentation:"A sequence expression (two comma-separated expressions)",$propdoc:{car:"[AST_Node] first element in sequence",cdr:"[AST_Node] second element in sequence"},$cons:function(x,y){var seq=new AST_Seq(x);seq.car=x;seq.cdr=y;return seq},$from_array:function(array){if(array.length==0)return null;if(array.length==1)return array[0].clone();var list=null;for(var i=array.length;--i>=0;){list=AST_Seq.cons(array[i],list)}var p=list;while(p){if(p.cdr&&!p.cdr.cdr){p.cdr=p.cdr.car;break}p=p.cdr}return list},to_array:function(){var p=this,a=[];while(p){a.push(p.car);if(p.cdr&&!(p.cdr instanceof AST_Seq)){a.push(p.cdr);break}p=p.cdr}return a},add:function(node){var p=this;while(p){if(!(p.cdr instanceof AST_Seq)){var cell=AST_Seq.cons(p.cdr,node);return p.cdr=cell}p=p.cdr}},len:function(){if(this.cdr instanceof AST_Seq){return this.cdr.len()+1}else{return 2}},_walk:function(visitor){return visitor._visit(this,function(){this.car._walk(visitor);if(this.cdr)this.cdr._walk(visitor)})}});var AST_PropAccess=DEFNODE("PropAccess","expression property",{$documentation:'Base class for property access expressions, i.e. `a.foo` or `a["foo"]`',$propdoc:{expression:"[AST_Node] the “container” expression",property:"[AST_Node|string] the property to access. For AST_Dot this is always a plain string, while for AST_Sub it's an arbitrary AST_Node"}});var AST_Dot=DEFNODE("Dot",null,{$documentation:"A dotted property access expression",_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor)})}},AST_PropAccess);var AST_Sub=DEFNODE("Sub",null,{$documentation:'Index-style property access, i.e. `a["foo"]`',_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor);this.property._walk(visitor)})}},AST_PropAccess);var AST_Unary=DEFNODE("Unary","operator expression",{$documentation:"Base class for unary expressions",$propdoc:{operator:"[string] the operator",expression:"[AST_Node] expression that this unary operator applies to"},_walk:function(visitor){return visitor._visit(this,function(){this.expression._walk(visitor)})}});var AST_UnaryPrefix=DEFNODE("UnaryPrefix",null,{$documentation:"Unary prefix expression, i.e. `typeof i` or `++i`"},AST_Unary);var AST_UnaryPostfix=DEFNODE("UnaryPostfix",null,{$documentation:"Unary postfix expression, i.e. `i++`"},AST_Unary);var AST_Binary=DEFNODE("Binary","left operator right",{$documentation:"Binary expression, i.e. `a + b`",$propdoc:{left:"[AST_Node] left-hand side expression",operator:"[string] the operator",right:"[AST_Node] right-hand side expression"},_walk:function(visitor){return visitor._visit(this,function(){this.left._walk(visitor);this.right._walk(visitor)})}});var AST_Conditional=DEFNODE("Conditional","condition consequent alternative",{$documentation:"Conditional expression using the ternary operator, i.e. `a ? b : c`",$propdoc:{condition:"[AST_Node]",consequent:"[AST_Node]",alternative:"[AST_Node]"},_walk:function(visitor){return visitor._visit(this,function(){this.condition._walk(visitor);this.consequent._walk(visitor);this.alternative._walk(visitor)})}});var AST_Assign=DEFNODE("Assign",null,{$documentation:"An assignment expression — `a = b + 5`"},AST_Binary);var AST_Array=DEFNODE("Array","elements",{$documentation:"An array literal",$propdoc:{elements:"[AST_Node*] array of elements"},_walk:function(visitor){return visitor._visit(this,function(){var elements=this.elements;for(var i=0,len=elements.length;i<len;i++){elements[i]._walk(visitor)}})}});var AST_Object=DEFNODE("Object","properties",{$documentation:"An object literal",$propdoc:{properties:"[AST_ObjectProperty*] array of properties"},_walk:function(visitor){return visitor._visit(this,function(){var properties=this.properties;for(var i=0,len=properties.length;i<len;i++){properties[i]._walk(visitor)}})}});var AST_ObjectProperty=DEFNODE("ObjectProperty","key value",{$documentation:"Base class for literal object properties",$propdoc:{key:"[string] the property name converted to a string for ObjectKeyVal. For setters and getters this is an arbitrary AST_Node.",value:"[AST_Node] property value. For setters and getters this is an AST_Function."},_walk:function(visitor){return visitor._visit(this,function(){this.value._walk(visitor)})}});var AST_ObjectKeyVal=DEFNODE("ObjectKeyVal","quote",{$documentation:"A key: value object property",$propdoc:{quote:"[string] the original quote character"}},AST_ObjectProperty);var AST_ObjectSetter=DEFNODE("ObjectSetter",null,{$documentation:"An object setter property"},AST_ObjectProperty);var AST_ObjectGetter=DEFNODE("ObjectGetter",null,{$documentation:"An object getter property"},AST_ObjectProperty);var AST_Symbol=DEFNODE("Symbol","scope name thedef",{$propdoc:{name:"[string] name of this symbol",scope:"[AST_Scope/S] the current scope (not necessarily the definition scope)",thedef:"[SymbolDef/S] the definition of this symbol"},$documentation:"Base class for all symbols"});var AST_SymbolAccessor=DEFNODE("SymbolAccessor",null,{$documentation:"The name of a property accessor (setter/getter function)"},AST_Symbol);var AST_SymbolDeclaration=DEFNODE("SymbolDeclaration","init",{$documentation:"A declaration symbol (symbol in var/const, function name or argument, symbol in catch)",$propdoc:{init:"[AST_Node*/S] array of initializers for this declaration."}},AST_Symbol);var AST_SymbolVar=DEFNODE("SymbolVar",null,{$documentation:"Symbol defining a variable"},AST_SymbolDeclaration);var AST_SymbolConst=DEFNODE("SymbolConst",null,{$documentation:"A constant declaration"},AST_SymbolDeclaration);var AST_SymbolFunarg=DEFNODE("SymbolFunarg",null,{$documentation:"Symbol naming a function argument"},AST_SymbolVar);var AST_SymbolDefun=DEFNODE("SymbolDefun",null,{$documentation:"Symbol defining a function"},AST_SymbolDeclaration);var AST_SymbolLambda=DEFNODE("SymbolLambda",null,{$documentation:"Symbol naming a function expression"},AST_SymbolDeclaration);var AST_SymbolCatch=DEFNODE("SymbolCatch",null,{$documentation:"Symbol naming the exception in catch"},AST_SymbolDeclaration);var AST_Label=DEFNODE("Label","references",{$documentation:"Symbol naming a label (declaration)",$propdoc:{references:"[AST_LoopControl*] a list of nodes referring to this label"},initialize:function(){this.references=[];this.thedef=this}},AST_Symbol);var AST_SymbolRef=DEFNODE("SymbolRef",null,{$documentation:"Reference to some symbol (not definition/declaration)"},AST_Symbol);var AST_LabelRef=DEFNODE("LabelRef",null,{$documentation:"Reference to a label symbol"},AST_Symbol);var AST_This=DEFNODE("This",null,{$documentation:"The `this` symbol"},AST_Symbol);var AST_Constant=DEFNODE("Constant",null,{$documentation:"Base class for all constants",getValue:function(){return this.value}});var AST_String=DEFNODE("String","value quote",{$documentation:"A string literal",$propdoc:{value:"[string] the contents of this string",quote:"[string] the original quote character"}},AST_Constant);var AST_Number=DEFNODE("Number","value literal",{$documentation:"A number literal",$propdoc:{value:"[number] the numeric value",literal:"[string] numeric value as string (optional)"}},AST_Constant);var AST_RegExp=DEFNODE("RegExp","value",{$documentation:"A regexp literal",$propdoc:{value:"[RegExp] the actual regexp"}},AST_Constant);var AST_Atom=DEFNODE("Atom",null,{$documentation:"Base class for atoms"},AST_Constant);var AST_Null=DEFNODE("Null",null,{$documentation:"The `null` atom",value:null},AST_Atom);var AST_NaN=DEFNODE("NaN",null,{$documentation:"The impossible value",value:0/0},AST_Atom);var AST_Undefined=DEFNODE("Undefined",null,{$documentation:"The `undefined` value",value:function(){}()},AST_Atom);var AST_Hole=DEFNODE("Hole",null,{$documentation:"A hole in an array",value:function(){}()},AST_Atom);var AST_Infinity=DEFNODE("Infinity",null,{$documentation:"The `Infinity` value",value:1/0},AST_Atom);var AST_Boolean=DEFNODE("Boolean",null,{$documentation:"Base class for booleans"},AST_Atom);var AST_False=DEFNODE("False",null,{$documentation:"The `false` atom",value:false},AST_Boolean);var AST_True=DEFNODE("True",null,{$documentation:"The `true` atom",value:true},AST_Boolean);function TreeWalker(callback){this.visit=callback;this.stack=[];this.directives=Object.create(null)}TreeWalker.prototype={_visit:function(node,descend){this.push(node);var ret=this.visit(node,descend?function(){descend.call(node)}:noop);if(!ret&&descend){descend.call(node)}this.pop(node);return ret},parent:function(n){return this.stack[this.stack.length-2-(n||0)]},push:function(node){if(node instanceof AST_Lambda){this.directives=Object.create(this.directives)}else if(node instanceof AST_Directive){this.directives[node.value]=this.directives[node.value]?"up":true}this.stack.push(node)},pop:function(node){this.stack.pop();if(node instanceof AST_Lambda){this.directives=Object.getPrototypeOf(this.directives)}},self:function(){return this.stack[this.stack.length-1]},find_parent:function(type){var stack=this.stack;for(var i=stack.length;--i>=0;){var x=stack[i];if(x instanceof type)return x}},has_directive:function(type){var dir=this.directives[type];if(dir)return dir;var node=this.stack[this.stack.length-1];if(node instanceof AST_Scope){for(var i=0;i<node.body.length;++i){var st=node.body[i];if(!(st instanceof AST_Directive))break;if(st.value==type)return true}}},in_boolean_context:function(){var stack=this.stack;var i=stack.length,self=stack[--i];while(i>0){var p=stack[--i];if(p instanceof AST_If&&p.condition===self||p instanceof AST_Conditional&&p.condition===self||p instanceof AST_DWLoop&&p.condition===self||p instanceof AST_For&&p.condition===self||p instanceof AST_UnaryPrefix&&p.operator=="!"&&p.expression===self){return true}if(!(p instanceof AST_Binary&&(p.operator=="&&"||p.operator=="||")))return false;self=p}},loopcontrol_target:function(label){var stack=this.stack;if(label)for(var i=stack.length;--i>=0;){var x=stack[i];if(x instanceof AST_LabeledStatement&&x.label.name==label.name){return x.body}}else for(var i=stack.length;--i>=0;){var x=stack[i];if(x instanceof AST_Switch||x instanceof AST_IterationStatement)return x}}};/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor.
https://github.com/mishoo/UglifyJS2
-------------------------------- (C) ---------------------------------
@@ -124,12 +123,12 @@
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
***********************************************************************/
-"use strict";var KEYWORDS="break case catch class const continue debugger default delete do else export extends finally for function if in instanceof new return switch throw try typeof var let void while with import";var KEYWORDS_ATOM="false null true";var RESERVED_WORDS="enum implements interface package private protected public static super this "+KEYWORDS_ATOM+" "+KEYWORDS;var KEYWORDS_BEFORE_EXPRESSION="return new delete throw else case yield";KEYWORDS=makePredicate(KEYWORDS);RESERVED_WORDS=makePredicate(RESERVED_WORDS);KEYWORDS_BEFORE_EXPRESSION=makePredicate(KEYWORDS_BEFORE_EXPRESSION);KEYWORDS_ATOM=makePredicate(KEYWORDS_ATOM);var OPERATOR_CHARS=makePredicate(characters("+-*&%=<>!?|~^"));var RE_NUM_LITERAL=/[0-9a-f]/i;var RE_HEX_NUMBER=/^0x[0-9a-f]+$/i;var RE_OCT_NUMBER=/^0[0-7]+$/;var RE_ES6_OCT_NUMBER=/^0o[0-7]+$/i;var RE_BIN_NUMBER=/^0b[01]+$/i;var RE_DEC_NUMBER=/^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i;var OPERATORS=makePredicate(["in","instanceof","typeof","new","void","delete","++","--","+","-","!","~","&","|","^","*","**","/","%",">>","<<",">>>","<",">","<=",">=","==","===","!=","!==","?","=","+=","-=","/=","*=","**=","%=",">>=","<<=",">>>=","|=","^=","&=","&&","||"]);var WHITESPACE_CHARS=makePredicate(characters(" \n\r\t\f\v \u2028\u2029 \ufeff"));var NEWLINE_CHARS=makePredicate(characters("\n\r\u2028\u2029"));var PUNC_AFTER_EXPRESSION=makePredicate(characters(";]),:"));var PUNC_BEFORE_EXPRESSION=makePredicate(characters("[{(,.;:"));var PUNC_CHARS=makePredicate(characters("[]{}(),;:"));var REGEXP_MODIFIERS=makePredicate(characters("gmsiy"));var 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get_full_char(str,pos){var char=str.charAt(pos);if(char>="�"&&char<="�"){return char+str.charAt(pos+1)}return char}function get_full_char_code(str,pos){if(is_surrogate_pair_head(str.charAt(pos))){return 65536+(str.charCodeAt(pos)-55296<<10)+str.charCodeAt(pos+1)-56320}return str.charCodeAt(pos)}function get_full_char_length(str){var surrogates=0;for(var i=0;i<str.length;i++){if(str.charCodeAt(i)>=55296&&str.charCodeAt(i)<=56319){if(str.charCodeAt(i+1)>=56320&&str.charCodeAt(i+1)<=57343){surrogates++;i++}}}return str.length-surrogates}function from_char_code(code){if(code>65535){code-=65536;return String.fromCharCode((code>>10)+55296)+String.fromCharCode(code%1024+56320)}return String.fromCharCode(code)}function is_surrogate_pair_head(code){if(typeof code==="string")code=code.charCodeAt(0);return code>=55296&&code<=56319}function is_surrogate_pair_tail(code){if(typeof code==="string")code=code.charCodeAt(0);return code>=56320&&code<=57343}function is_digit(code){return code>=48&&code<=57}function is_identifier(name){if(typeof name!=="string"||RESERVED_WORDS(name))return false;return true}function is_identifier_start(ch){var code=ch.charCodeAt(0);return UNICODE.ID_Start.test(ch)||code==36||code==95}function is_identifier_char(ch){var code=ch.charCodeAt(0);return UNICODE.ID_Continue.test(ch)||code==36||code==95||code==8204||code==8205}function is_identifier_string(str){return/^[a-z_$][a-z0-9_$]*$/i.test(str)}function parse_js_number(num){if(RE_HEX_NUMBER.test(num)){return parseInt(num.substr(2),16)}else if(RE_OCT_NUMBER.test(num)){return parseInt(num.substr(1),8)}else if(RE_ES6_OCT_NUMBER.test(num)){return parseInt(num.substr(2),8)}else if(RE_BIN_NUMBER.test(num)){return parseInt(num.substr(2),2)}else if(RE_DEC_NUMBER.test(num)){return parseFloat(num)}else{var val=parseFloat(num);if(val==num)return val}}function JS_Parse_Error(message,filename,line,col,pos){this.message=message;this.filename=filename;this.line=line;this.col=col;this.pos=pos}JS_Parse_Error.prototype=Object.create(Error.prototype);JS_Parse_Error.prototype.constructor=JS_Parse_Error;JS_Parse_Error.prototype.name="SyntaxError";configure_error_stack(JS_Parse_Error);function js_error(message,filename,line,col,pos){throw new JS_Parse_Error(message,filename,line,col,pos)}function is_token(token,type,val){return token.type==type&&(val==null||token.value==val)}var EX_EOF={};function tokenizer($TEXT,filename,html5_comments,shebang){var S={text:$TEXT,filename:filename,pos:0,tokpos:0,line:1,tokline:0,col:0,tokcol:0,newline_before:false,regex_allowed:false,brace_counter:0,template_braces:[],comments_before:[],directives:{},directive_stack:[]};function peek(){return get_full_char(S.text,S.pos)}function next(signal_eof,in_string){var ch=get_full_char(S.text,S.pos++);if(signal_eof&&!ch)throw EX_EOF;if(NEWLINE_CHARS(ch)){S.newline_before=S.newline_before||!in_string;++S.line;S.col=0;if(!in_string&&ch=="\r"&&peek()=="\n"){++S.pos;ch="\n"}}else{if(is_surrogate_pair_head(ch)){++S.pos;++S.col}++S.col}return ch}function forward(i){while(i-- >0)next()}function looking_at(str){return S.text.substr(S.pos,str.length)==str}function find_eol(){var text=S.text;for(var i=S.pos,n=S.text.length;i<n;++i){var ch=text[i];if(NEWLINE_CHARS(ch))return i}return-1}function find(what,signal_eof){var pos=S.text.indexOf(what,S.pos);if(signal_eof&&pos==-1)throw EX_EOF;return pos}function start_token(){S.tokline=S.line;S.tokcol=S.col;S.tokpos=S.pos}var prev_was_dot=false;function token(type,value,is_comment){S.regex_allowed=type=="operator"&&!UNARY_POSTFIX(value)||type=="keyword"&&KEYWORDS_BEFORE_EXPRESSION(value)||type=="punc"&&PUNC_BEFORE_EXPRESSION(value)||type=="arrow";prev_was_dot=type=="punc"&&value==".";var ret={type:type,value:value,line:S.tokline,col:S.tokcol,pos:S.tokpos,endline:S.line,endcol:S.col,endpos:S.pos,nlb:S.newline_before,file:filename};if(/^(?:num|string|regexp)$/i.test(type)){ret.raw=$TEXT.substring(ret.pos,ret.endpos)}if(!is_comment){ret.comments_before=S.comments_before;S.comments_before=[];for(var i=0,len=ret.comments_before.length;i<len;i++){ret.nlb=ret.nlb||ret.comments_before[i].nlb}}S.newline_before=false;return new AST_Token(ret)}function skip_whitespace(){while(WHITESPACE_CHARS(peek()))next()}function read_while(pred){var ret="",ch,i=0;while((ch=peek())&&pred(ch,i++))ret+=next();return ret}function parse_error(err){js_error(err,filename,S.tokline,S.tokcol,S.tokpos)}function read_num(prefix){var has_e=false,after_e=false,has_x=false,has_dot=prefix==".";var num=read_while(function(ch,i){var code=ch.charCodeAt(0);switch(code){case 98:case 66:return has_x=true;case 111:case 79:case 120:case 88:return has_x?false:has_x=true;case 101:case 69:return has_x?true:has_e?false:has_e=after_e=true;case 45:return after_e||i==0&&!prefix;case 43:return after_e;case after_e=false,46:return!has_dot&&!has_x&&!has_e?has_dot=true:false}return RE_NUM_LITERAL.test(ch)});if(prefix)num=prefix+num;if(RE_OCT_NUMBER.test(num)&&next_token.has_directive("use strict")){parse_error("Legacy octal literals are not allowed in strict mode")}var valid=parse_js_number(num);if(!isNaN(valid)){return token("num",valid)}else{parse_error("Invalid syntax: "+num)}}function read_escaped_char(in_string){var ch=next(true,in_string);switch(ch.charCodeAt(0)){case 110:return"\n";case 114:return"\r";case 116:return"\t";case 98:return"\b";case 118:return"\v";case 102:return"\f";case 120:return String.fromCharCode(hex_bytes(2));case 117:if(peek()=="{"){next(true);if(peek()==="}")parse_error("Expecting hex-character between {}");while(peek()=="0")next(true);var result,length=find("}",true)-S.pos;if(length>6||(result=hex_bytes(length))>1114111){parse_error("Unicode reference out of bounce")}next(true);return from_char_code(result)}return String.fromCharCode(hex_bytes(4));case 10:return"";case 13:if(peek()=="\n"){next(true,in_string);return""}}if(ch>="0"&&ch<="7")return read_octal_escape_sequence(ch);return ch}function read_octal_escape_sequence(ch){var p=peek();if(p>="0"&&p<="7"){ch+=next(true);if(ch[0]<="3"&&(p=peek())>="0"&&p<="7")ch+=next(true)}if(ch==="0")return"\0";if(ch.length>0&&next_token.has_directive("use strict"))parse_error("Legacy octal escape sequences are not allowed in strict mode");return String.fromCharCode(parseInt(ch,8))}function hex_bytes(n){var num=0;for(;n>0;--n){var digit=parseInt(next(true),16);if(isNaN(digit))parse_error("Invalid hex-character pattern in string");num=num<<4|digit}return num}var read_string=with_eof_error("Unterminated string constant",function(quote_char){var quote=next(),ret="";for(;;){var ch=next(true,true);if(ch=="\\")ch=read_escaped_char(true);else if(NEWLINE_CHARS(ch))parse_error("Unterminated string constant");else if(ch==quote)break;ret+=ch}var tok=token("string",ret);tok.quote=quote_char;return tok});var read_template_characters=with_eof_error("Unterminated template",function(begin){if(begin){S.template_braces.push(S.brace_counter)}var content="",raw="",ch,tok;next(true,true);while((ch=next(true,true))!=="`"){if(ch==="$"&&peek()==="{"){next(true,true);S.brace_counter++;tok=token(begin?"template_head":"template_substitution",content);tok.begin=begin;tok.raw=raw;tok.end=false;return tok}raw+=ch;if(ch==="\\"){var tmp=S.pos;ch=read_escaped_char();raw+=S.text.substr(tmp,S.pos-tmp)}content+=ch}S.template_braces.pop();tok=token(begin?"template_head":"template_substitution",content);tok.begin=begin;tok.raw=raw;tok.end=true;return tok});function skip_line_comment(type){var regex_allowed=S.regex_allowed;var i=find_eol(),ret;if(i==-1){ret=S.text.substr(S.pos);S.pos=S.text.length}else{ret=S.text.substring(S.pos,i);S.pos=i}S.col=S.tokcol+(S.pos-S.tokpos);S.comments_before.push(token(type,ret,true));S.regex_allowed=regex_allowed;return next_token}var skip_multiline_comment=with_eof_error("Unterminated multiline comment",function(){var regex_allowed=S.regex_allowed;var i=find("*/",true);var text=S.text.substring(S.pos,i).replace(/\r\n|\r|\u2028|\u2029/g,"\n");forward(get_full_char_length(text)+2);S.comments_before.push(token("comment2",text,true));S.newline_before=S.newline_before||text.indexOf("\n")>=0;S.regex_allowed=regex_allowed;return next_token});var read_name=with_eof_error("Unterminated identifier name",function(){var name="",ch,escaped=false,hex;var read_escaped_identifier_char=function(){escaped=true;next();if(peek()!=="u"){parse_error("Expecting UnicodeEscapeSequence -- uXXXX or u{XXXX}")}return read_escaped_char()};if((name=peek())==="\\"){name=read_escaped_identifier_char();if(!is_identifier_start(name)){parse_error("First identifier char is an invalid identifier char")}}else if(is_identifier_start(name)){next()}else{return""}while((ch=peek())!=null){if((ch=peek())==="\\"){ch=read_escaped_identifier_char();if(!is_identifier_char(ch)){parse_error("Invalid escaped identifier char")}}else{if(!is_identifier_char(ch)){break}next()}name+=ch}if(RESERVED_WORDS(name)&&escaped){parse_error("Escaped characters are not allowed in keywords")}return name});var read_regexp=with_eof_error("Unterminated regular expression",function(regexp){var prev_backslash=false,ch,in_class=false;while(ch=next(true))if(NEWLINE_CHARS(ch)){parse_error("Unexpected line terminator")}else if(prev_backslash){regexp+="\\"+ch;prev_backslash=false}else if(ch=="["){in_class=true;regexp+=ch}else if(ch=="]"&&in_class){in_class=false;regexp+=ch}else if(ch=="/"&&!in_class){break}else if(ch=="\\"){prev_backslash=true}else{regexp+=ch}var mods=read_name();try{return token("regexp",new RegExp(regexp,mods))}catch(e){parse_error(e.message)}});function read_operator(prefix){function grow(op){if(!peek())return op;var bigger=op+peek();if(OPERATORS(bigger)){next();return grow(bigger)}else{return op}}return token("operator",grow(prefix||next()))}function handle_slash(){next();switch(peek()){case"/":next();return skip_line_comment("comment1");case"*":next();return skip_multiline_comment()}return S.regex_allowed?read_regexp(""):read_operator("/")}function handle_eq_sign(){next();if(peek()===">"){next();return token("arrow","=>")}else{return read_operator("=")}}function handle_dot(){next();if(is_digit(peek().charCodeAt(0))){return read_num(".")}if(peek()==="."){next();next();return token("expand","...")}return token("punc",".")}function read_word(){var word=read_name();if(prev_was_dot)return token("name",word);return KEYWORDS_ATOM(word)?token("atom",word):!KEYWORDS(word)?token("name",word):OPERATORS(word)?token("operator",word):token("keyword",word)}function with_eof_error(eof_error,cont){return function(x){try{return cont(x)}catch(ex){if(ex===EX_EOF)parse_error(eof_error);else throw ex}}}function next_token(force_regexp){if(force_regexp!=null)return read_regexp(force_regexp);for(;;){skip_whitespace();start_token();if(html5_comments){if(looking_at("<!--")){forward(4);skip_line_comment("comment3");continue}if(looking_at("-->")&&S.newline_before){forward(3);skip_line_comment("comment4");continue}}var ch=peek();if(!ch)return token("eof");var code=ch.charCodeAt(0);switch(code){case 34:case 39:return read_string(ch);case 46:return handle_dot();case 47:{var tok=handle_slash();if(tok===next_token)continue;return tok}case 61:return handle_eq_sign();case 96:return read_template_characters(true);case 123:S.brace_counter++;break;case 125:S.brace_counter--;if(S.template_braces.length>0&&S.template_braces[S.template_braces.length-1]===S.brace_counter)return read_template_characters(false);break}if(is_digit(code))return read_num();if(PUNC_CHARS(ch))return token("punc",next());if(OPERATOR_CHARS(ch))return read_operator();if(code==92||is_identifier_start(ch))return read_word();if(shebang){if(S.pos==0&&looking_at("#!")){forward(2);skip_line_comment("comment5");continue}}break}parse_error("Unexpected character '"+ch+"'")}next_token.next=next;next_token.peek=peek;next_token.context=function(nc){if(nc)S=nc;return S};next_token.add_directive=function(directive){S.directive_stack[S.directive_stack.length-1].push(directive);if(S.directives[directive]===undefined){S.directives[directive]=1}else{S.directives[directive]++}};next_token.push_directives_stack=function(){S.directive_stack.push([])};next_token.pop_directives_stack=function(){var directives=S.directive_stack[S.directive_stack.length-1];for(var i=0;i<directives.length;i++){S.directives[directives[i]]--}S.directive_stack.pop()};next_token.has_directive=function(directive){return S.directives[directive]!==undefined&&S.directives[directive]>0};return next_token}var UNARY_PREFIX=makePredicate(["typeof","void","delete","--","++","!","~","-","+"]);var UNARY_POSTFIX=makePredicate(["--","++"]);var ASSIGNMENT=makePredicate(["=","+=","-=","/=","*=","**=","%=",">>=","<<=",">>>=","|=","^=","&="]);var PRECEDENCE=function(a,ret){for(var i=0;i<a.length;++i){var b=a[i];for(var j=0;j<b.length;++j){ret[b[j]]=i+1}}return ret}([["||"],["&&"],["|"],["^"],["&"],["==","===","!=","!=="],["<",">","<=",">=","in","instanceof"],[">>","<<",">>>"],["+","-"],["*","/","%"],["**"]],{});var STATEMENTS_WITH_LABELS=array_to_hash(["for","do","while","switch"]);var ATOMIC_START_TOKEN=array_to_hash(["atom","num","string","regexp","name"]);function parse($TEXT,options){options=defaults(options,{strict:false,filename:null,toplevel:null,expression:false,html5_comments:true,bare_returns:false,shebang:true});var S={input:typeof $TEXT=="string"?tokenizer($TEXT,options.filename,options.html5_comments,options.shebang):$TEXT,token:null,prev:null,peeked:null,in_function:0,in_generator:-1,in_directives:true,in_loop:0,labels:[]};S.token=next();function is(type,value){return is_token(S.token,type,value)}function peek(){return S.peeked||(S.peeked=S.input())}function next(){S.prev=S.token;if(S.peeked){S.token=S.peeked;S.peeked=null}else{S.token=S.input()}S.in_directives=S.in_directives&&(S.token.type=="string"||is("punc",";"));return S.token}function prev(){return S.prev}function croak(msg,line,col,pos){var ctx=S.input.context();js_error(msg,ctx.filename,line!=null?line:ctx.tokline,col!=null?col:ctx.tokcol,pos!=null?pos:ctx.tokpos)}function token_error(token,msg){croak(msg,token.line,token.col)}function unexpected(token){if(token==null)token=S.token;token_error(token,"Unexpected token: "+token.type+" ("+token.value+")")}function expect_token(type,val){if(is(type,val)){return next()}token_error(S.token,"Unexpected token "+S.token.type+" «"+S.token.value+"»"+", expected "+type+" «"+val+"»")}function expect(punc){return expect_token("punc",punc)}function can_insert_semicolon(){return!options.strict&&(S.token.nlb||is("eof")||is("punc","}"))}function is_in_generator(){return S.in_generator===S.in_function}function semicolon(optional){if(is("punc",";"))next();else if(!optional&&!can_insert_semicolon())unexpected()}function parenthesised(){expect("(");var exp=expression(true);expect(")");return exp}function embed_tokens(parser){return function(){var start=S.token;var expr=parser.apply(null,arguments);var end=prev();expr.start=start;expr.end=end;return expr}}function handle_regexp(){if(is("operator","/")||is("operator","/=")){S.peeked=null;S.token=S.input(S.token.value.substr(1))}}var statement=embed_tokens(function(){var tmp;handle_regexp();switch(S.token.type){case"string":var dir=false;if(S.in_directives===true){if((is_token(peek(),"punc",";")||peek().nlb)&&S.token.raw.indexOf("\\")===-1){S.input.add_directive(S.token.value)}else{S.in_directives=false}}var dir=S.in_directives,stat=simple_statement();if(dir){return new AST_Directive({start:stat.body.start,end:stat.body.end,quote:stat.body.quote,value:stat.body.value})}return stat;case"template_head":case"num":case"regexp":case"operator":case"atom":return simple_statement();case"name":return is_token(peek(),"punc",":")?labeled_statement():simple_statement();case"punc":switch(S.token.value){case"{":
-return new AST_BlockStatement({start:S.token,body:block_(),end:prev()});case"[":case"(":return simple_statement();case";":S.in_directives=false;next();return new AST_EmptyStatement;default:unexpected()}case"keyword":switch(tmp=S.token.value,next(),tmp){case"break":return break_cont(AST_Break);case"continue":return break_cont(AST_Continue);case"debugger":semicolon();return new AST_Debugger;case"do":return new AST_Do({body:in_loop(statement),condition:(expect_token("keyword","while"),tmp=parenthesised(),semicolon(true),tmp)});case"while":return new AST_While({condition:parenthesised(),body:in_loop(statement)});case"for":return for_();case"class":return class_(AST_DefClass);case"function":return function_(AST_Defun);case"if":return if_();case"return":if(S.in_function==0&&!options.bare_returns)croak("'return' outside of function");return new AST_Return({value:is("punc",";")?(next(),null):can_insert_semicolon()?null:(tmp=expression(true),semicolon(),tmp)});case"switch":return new AST_Switch({expression:parenthesised(),body:in_loop(switch_body_)});case"throw":if(S.token.nlb)croak("Illegal newline after 'throw'");return new AST_Throw({value:(tmp=expression(true),semicolon(),tmp)});case"try":return try_();case"var":return tmp=var_(),semicolon(),tmp;case"let":return tmp=let_(),semicolon(),tmp;case"const":return tmp=const_(),semicolon(),tmp;case"with":if(S.input.has_directive("use strict")){croak("Strict mode may not include a with statement")}return new AST_With({expression:parenthesised(),body:statement()});case"import":return tmp=import_(),semicolon(),tmp;case"export":return export_()}}unexpected()});function labeled_statement(){var label=as_symbol(AST_Label);if(label.name==="yield"&&is_in_generator()){token_error(S.prev,"Yield cannot be used as label inside generators")}if(find_if(function(l){return l.name==label.name},S.labels)){croak("Label "+label.name+" defined twice")}expect(":");S.labels.push(label);var stat=statement();S.labels.pop();if(!(stat instanceof AST_IterationStatement)){label.references.forEach(function(ref){if(ref instanceof AST_Continue){ref=ref.label.start;croak("Continue label `"+label.name+"` refers to non-IterationStatement.",ref.line,ref.col,ref.pos)}})}return new AST_LabeledStatement({body:stat,label:label})}function simple_statement(tmp){return new AST_SimpleStatement({body:(tmp=expression(true),semicolon(),tmp)})}function break_cont(type){var label=null,ldef;if(!can_insert_semicolon()){label=as_symbol(AST_LabelRef,true)}if(label!=null){ldef=find_if(function(l){return l.name==label.name},S.labels);if(!ldef)croak("Undefined label "+label.name);label.thedef=ldef}else if(S.in_loop==0)croak(type.TYPE+" not inside a loop or switch");semicolon();var stat=new type({label:label});if(ldef)ldef.references.push(stat);return stat}function for_(){expect("(");var init=null;if(!is("punc",";")){init=is("keyword","var")?(next(),var_(true)):is("keyword","let")?(next(),let_(true)):is("keyword","const")?(next(),const_(true)):expression(true,true);var is_in=is("operator","in");var is_of=is("name","of");if(is_in||is_of){if(init instanceof AST_Definitions&&init.definitions.length>1)croak("Only one variable declaration allowed in for..in loop");next();if(is_in){return for_in(init)}else{return for_of(init)}}}return regular_for(init)}function regular_for(init){expect(";");var test=is("punc",";")?null:expression(true);expect(";");var step=is("punc",")")?null:expression(true);expect(")");return new AST_For({init:init,condition:test,step:step,body:in_loop(statement)})}function for_of(init){var lhs=init instanceof AST_Definitions?init.definitions[0].name:null;var obj=expression(true);expect(")");return new AST_ForOf({init:init,name:lhs,object:obj,body:in_loop(statement)})}function for_in(init){var lhs=init instanceof AST_Definitions?init.definitions[0].name:null;var obj=expression(true);expect(")");return new AST_ForIn({init:init,name:lhs,object:obj,body:in_loop(statement)})}var arrow_function=function(args){if(S.token.nlb){croak("Unexpected newline before arrow (=>)")}expect_token("arrow","=>");var argnames;if(typeof args.length==="number"){argnames=args}else{argnames=args.as_params(croak)}var body=is("punc","{")?_function_body(true):_function_body(false);return new AST_Arrow({start:args.start,end:body.end,argnames:argnames,body:body})};var function_=function(ctor,is_generator_property){var start=S.token;var in_statement=ctor===AST_Defun;var is_generator=is("operator","*");if(is_generator){next()}var name=is("name")?as_symbol(in_statement?AST_SymbolDefun:AST_SymbolLambda):null;if(in_statement&&!name)unexpected();var args=parameters();var body=_function_body(true,is_generator||is_generator_property);return new ctor({start:args.start,end:body.end,is_generator:is_generator,name:name,argnames:args,body:body})};function track_used_binding_identifiers(is_parameter,strict){var parameters={};var duplicate=false;var default_assignment=false;var spread=false;var strict_mode=!!strict;var tracker={add_parameter:function(token){if(parameters["$"+token.value]!==undefined){if(duplicate===false){duplicate=token}tracker.check_strict()}else{parameters["$"+token.value]=true;if(is_parameter){switch(token.value){case"arguments":case"eval":case"yield":if(strict_mode){token_error(token,"Unexpected "+token.value+" identifier as parameter inside strict mode")}break;default:if(RESERVED_WORDS(token.value)){unexpected()}}}}},mark_default_assignment:function(token){if(default_assignment===false){default_assignment=token}},mark_spread:function(token){if(spread===false){spread=token}},mark_strict_mode:function(){strict_mode=true},is_strict:function(){return default_assignment!==false||spread!==false||strict_mode},check_strict:function(){if(tracker.is_strict()&&duplicate!==false){token_error(duplicate,"Parameter "+duplicate.value+" was used already")}}};return tracker}function parameters(){var start=S.token;var first=true;var params=[];var used_parameters=track_used_binding_identifiers(true,S.input.has_directive("use strict"));expect("(");while(!is("punc",")")){if(first){first=false}else{expect(",")}var param=parameter(used_parameters);params.push(param);if(param instanceof AST_Expansion){break}}next();return params}function parameter(used_parameters,symbol_type){var param;var expand=false;if(used_parameters===undefined){used_parameters=track_used_binding_identifiers(true,S.input.has_directive("use strict"))}if(is("expand","...")){expand=S.token;used_parameters.mark_spread(S.token);next()}param=binding_element(used_parameters,symbol_type);if(is("operator","=")&&expand===false){used_parameters.mark_default_assignment(S.token);next();param=new AST_DefaultAssign({start:param.start,left:param,operator:"=",right:expression(false),end:S.token})}if(expand!==false){if(!is("punc",")")){unexpected()}param=new AST_Expansion({start:expand,expression:param,end:expand})}used_parameters.check_strict();return param}function binding_element(used_parameters,symbol_type){var elements=[];var first=true;var is_expand=false;var expand_token;var first_token=S.token;if(used_parameters===undefined){used_parameters=track_used_binding_identifiers(false,S.input.has_directive("use strict"))}symbol_type=symbol_type===undefined?AST_SymbolFunarg:symbol_type;if(is("punc","[")){next();while(!is("punc","]")){if(first){first=false}else{expect(",")}if(is("expand","...")){is_expand=true;expand_token=S.token;used_parameters.mark_spread(S.token);next()}if(is("punc")){switch(S.token.value){case",":elements.push(new AST_Hole({start:S.token,end:S.token}));continue;case"]":break;case"[":case"{":elements.push(binding_element(used_parameters,symbol_type));break;default:unexpected()}}else if(is("name")){used_parameters.add_parameter(S.token);elements.push(new symbol_type({start:S.token,name:S.token.value,end:S.token}));next()}else{croak("Invalid function parameter")}if(is("operator","=")&&is_expand===false){used_parameters.mark_default_assignment(S.token);next();elements[elements.length-1]=new AST_DefaultAssign({start:elements[elements.length-1].start,left:elements[elements.length-1],operator:"=",right:expression(false),end:S.token})}if(is_expand){if(!is("punc","]")){unexpected()}elements[elements.length-1]=new AST_Expansion({start:expand_token,expression:elements[elements.length-1],end:expand_token})}}expect("]");used_parameters.check_strict();return new AST_Destructuring({start:first_token,names:elements,is_array:true,end:prev()})}else if(is("punc","{")){next();while(!is("punc","}")){if(first){first=false}else{expect(",")}if(is("name")&&(is_token(peek(),"punc")||is_token(peek(),"operator"))&&[",","}","="].indexOf(peek().value)!==-1){used_parameters.add_parameter(S.token);elements.push(new AST_ObjectKeyVal({start:prev(),key:S.token.value,value:new symbol_type({start:S.token,name:S.token.value,end:S.token}),end:prev()}));next()}else if(is("punc","}")){continue}else{var property_token=S.token;var property=as_property_name();if(property===null){unexpected(prev())}else if(prev().type==="name"&&!is("punc",":")){elements.push(new AST_ObjectKeyVal({start:prev(),key:property,value:new symbol_type({start:prev(),name:property,end:prev()}),end:prev()}))}else{expect(":");elements.push(new AST_ObjectKeyVal({start:property_token,quote:property_token.quote,key:property,value:binding_element(used_parameters,symbol_type),end:prev()}))}}if(is("operator","=")){used_parameters.mark_default_assignment(S.token);next();elements[elements.length-1].value=new AST_DefaultAssign({start:elements[elements.length-1].value.start,left:elements[elements.length-1].value,operator:"=",right:expression(false),end:S.token})}}expect("}");used_parameters.check_strict();return new AST_Destructuring({start:first_token,names:elements,is_array:false,end:prev()})}else if(is("name")){used_parameters.add_parameter(S.token);next();return new symbol_type({start:prev(),name:prev().value,end:prev()})}else{croak("Invalid function parameter")}}function params_or_seq_(){var start=S.token;expect("(");var first=true;var a=[];while(!is("punc",")")){if(first)first=false;else expect(",");if(is("expand","...")){var spread_token=S.token;next();a.push(new AST_Expansion({start:prev(),expression:expression(false),end:S.token}));if(!is("punc",")")){unexpected(spread_token)}}else{a.push(expression(false))}}var end=S.token;next();return new AST_ArrowParametersOrSeq({start:start,end:end,expressions:a})}function _function_body(block,generator){var loop=S.in_loop;var labels=S.labels;var current_generator=S.in_generator;++S.in_function;if(generator)S.in_generator=S.in_function;if(block)S.in_directives=true;S.in_loop=0;S.labels=[];if(block){S.input.push_directives_stack();var a=block_();S.input.pop_directives_stack()}else{var a=expression(false)}--S.in_function;S.in_loop=loop;S.labels=labels;S.in_generator=current_generator;return a}function _yield_expression(){if(!is_in_generator()){croak("Unexpected yield expression outside generator function",S.prev.line,S.prev.col,S.prev.pos)}var star=false;var has_expression=true;var tmp;if(can_insert_semicolon()||is("punc")&&PUNC_AFTER_EXPRESSION(S.token.value)){has_expression=false}else if(is("operator","*")){star=true;next()}return new AST_Yield({is_star:star,expression:has_expression?expression():null})}function if_(){var cond=parenthesised(),body=statement(),belse=null;if(is("keyword","else")){next();belse=statement()}return new AST_If({condition:cond,body:body,alternative:belse})}function block_(){expect("{");var a=[];while(!is("punc","}")){if(is("eof"))unexpected();a.push(statement())}next();return a}function switch_body_(){expect("{");var a=[],cur=null,branch=null,tmp;while(!is("punc","}")){if(is("eof"))unexpected();if(is("keyword","case")){if(branch)branch.end=prev();cur=[];branch=new AST_Case({start:(tmp=S.token,next(),tmp),expression:expression(true),body:cur});a.push(branch);expect(":")}else if(is("keyword","default")){if(branch)branch.end=prev();cur=[];branch=new AST_Default({start:(tmp=S.token,next(),expect(":"),tmp),body:cur});a.push(branch)}else{if(!cur)unexpected();cur.push(statement())}}if(branch)branch.end=prev();next();return a}function try_(){var body=block_(),bcatch=null,bfinally=null;if(is("keyword","catch")){var start=S.token;next();expect("(");var name=parameter(undefined,AST_SymbolCatch);expect(")");bcatch=new AST_Catch({start:start,argname:name,body:block_(),end:prev()})}if(is("keyword","finally")){var start=S.token;next();bfinally=new AST_Finally({start:start,body:block_(),end:prev()})}if(!bcatch&&!bfinally)croak("Missing catch/finally blocks");return new AST_Try({body:body,bcatch:bcatch,bfinally:bfinally})}function vardefs(no_in,kind){var a=[];var def;for(;;){var sym_type=kind==="var"?AST_SymbolVar:kind==="const"?AST_SymbolConst:kind==="let"?AST_SymbolLet:null;if(is("punc","{")||is("punc","[")){def=new AST_VarDef({start:S.token,name:binding_element(undefined,sym_type),value:is("operator","=")?(expect_token("operator","="),expression(false,no_in)):null,end:prev()})}else{def=new AST_VarDef({start:S.token,name:as_symbol(sym_type),value:is("operator","=")?(next(),expression(false,no_in)):null,end:prev()})}a.push(def);if(!is("punc",","))break;next()}return a}var var_=function(no_in){return new AST_Var({start:prev(),definitions:vardefs(no_in,"var"),end:prev()})};var let_=function(no_in){return new AST_Let({start:prev(),definitions:vardefs(no_in,"let"),end:prev()})};var const_=function(){return new AST_Const({start:prev(),definitions:vardefs(false,"const"),end:prev()})};var new_=function(allow_calls){var start=S.token;expect_token("operator","new");if(is("punc",".")){next();expect_token("name","target");return subscripts(new AST_NewTarget({start:start,end:prev()}),allow_calls)}var newexp=expr_atom(false),args;if(is("punc","(")){next();args=expr_list(")")}else{args=[]}return subscripts(new AST_New({start:start,expression:newexp,args:args,end:prev()}),allow_calls)};function as_atom_node(){var tok=S.token,ret;switch(tok.type){case"name":case"keyword":ret=_make_symbol(AST_SymbolRef);break;case"num":ret=new AST_Number({start:tok,end:tok,value:tok.value});break;case"string":ret=new AST_String({start:tok,end:tok,value:tok.value,quote:tok.quote});break;case"regexp":ret=new AST_RegExp({start:tok,end:tok,value:tok.value});break;case"atom":switch(tok.value){case"false":ret=new AST_False({start:tok,end:tok});break;case"true":ret=new AST_True({start:tok,end:tok});break;case"null":ret=new AST_Null({start:tok,end:tok});break}break;case"operator":if(!is_identifier_string(tok.value)){croak("Invalid getter/setter name: "+tok.value,tok.line,tok.col,tok.pos)}ret=_make_symbol(AST_SymbolRef);break}next();return ret}var expr_atom=function(allow_calls){if(is("operator","new")){return new_(allow_calls)}var start=S.token;if(is("punc")){switch(start.value){case"(":var ex=params_or_seq_();if(is("arrow","=>")){ex.start=start;ex.end=S.token;return arrow_function(ex)}ex=ex.as_expr(croak);ex.start=start;ex.end=S.token;return subscripts(ex,allow_calls);case"[":return subscripts(array_(),allow_calls);case"{":return subscripts(object_or_object_destructuring_(),allow_calls)}unexpected()}if(is("keyword","function")){next();var func=function_(AST_Function);func.start=start;func.end=prev();return subscripts(func,allow_calls)}if(is("keyword","class")){next();var cls=class_(AST_ClassExpression);cls.start=start;cls.end=prev();return subscripts(cls,allow_calls)}if(is("template_head")){return subscripts(template_string(),allow_calls)}if(ATOMIC_START_TOKEN[S.token.type]){return subscripts(as_atom_node(),allow_calls)}unexpected()};function template_string(){var segments=[],start=S.token;segments.push(new AST_TemplateSegment({start:S.token,raw:S.token.raw,value:S.token.value,end:S.token}));while(S.token.end===false){next();segments.push(expression());if(!is_token("template_substitution")){unexpected()}segments.push(new AST_TemplateSegment({start:S.token,raw:S.token.raw,value:S.token.value,end:S.token}))}next();return new AST_TemplateString({start:start,segments:segments,end:S.token})}function expr_list(closing,allow_trailing_comma,allow_empty){var first=true,a=[];while(!is("punc",closing)){if(first)first=false;else expect(",");if(allow_trailing_comma&&is("punc",closing))break;if(is("punc",",")&&allow_empty){a.push(new AST_Hole({start:S.token,end:S.token}))}else if(is("expand","...")){next();a.push(new AST_Expansion({start:prev(),expression:expression(),end:S.token}))}else{a.push(expression(false))}}next();return a}var array_=embed_tokens(function(){expect("[");return new AST_Array({elements:expr_list("]",!options.strict,true)})});var create_accessor=embed_tokens(function(is_generator){return function_(AST_Accessor,is_generator)});var object_or_object_destructuring_=embed_tokens(function(){var start=S.token,first=true,a=[];expect("{");while(!is("punc","}")){if(first)first=false;else expect(",");if(!options.strict&&is("punc","}"))break;start=S.token;var type=start.type;var name=as_property_name();var value;if(!is("punc",":")){var concise=concise_method_or_getset(name,start);if(concise){a.push(concise);continue}if(!(start.type!==name)){unexpected(S.token)}value=new AST_SymbolRef({start:prev(),name:name,end:prev()})}else if(name===null){unexpected(prev())}else{next();value=expression(false)}if(is("operator","=")){next();value=new AST_Assign({start:start,left:value,operator:"=",right:expression(false),end:prev()})}a.push(new AST_ObjectKeyVal({start:start,quote:start.quote,key:name,value:value,end:prev()}))}next();return new AST_Object({properties:a})});function class_(KindOfClass){var start,method,class_name,extends_,a=[];S.input.push_directives_stack();S.input.add_directive("use strict");if(S.token.type=="name"&&S.token.value!="extends"){class_name=as_symbol(KindOfClass===AST_DefClass?AST_SymbolDefClass:AST_SymbolClass)}if(KindOfClass===AST_DefClass&&!class_name){unexpected()}if(S.token.value=="extends"){next();extends_=expression(true)}expect("{");if(is("punc",";")){next()}while(!is("punc","}")){start=S.token;method=concise_method_or_getset(as_property_name(),start,true);if(!method){unexpected()}a.push(method);if(is("punc",";")){next()}}S.input.pop_directives_stack();next();return new KindOfClass({start:start,name:class_name,extends:extends_,properties:a,end:prev()})}function concise_method_or_getset(name,start,is_class){var get_ast=function(name,token){if(typeof name==="string"||typeof name==="number"){return new AST_SymbolMethod({start:token,name:name,end:prev()})}else if(name===null){unexpected()}return name};var is_static=false;var is_generator=false;var property_token=start;if(is_class&&name==="static"&&!is("punc","(")){is_static=true;property_token=S.token;name=as_property_name()}if(name===null){is_generator=true;property_token=S.token;name=as_property_name();if(name===null){unexpected()}}if(is("punc","(")){name=get_ast(name,start);var node=new AST_ConciseMethod({start:start,static:is_static,is_generator:is_generator,key:name,quote:name instanceof AST_SymbolMethod?property_token.quote:undefined,value:create_accessor(is_generator),end:prev()});return node}property_token=S.token;if(name=="get"){if(!is("punc")||is("punc","[")){name=get_ast(as_property_name(),start);return new AST_ObjectGetter({start:start,static:is_static,key:name,quote:name instanceof AST_SymbolMethod?property_token.quote:undefined,value:create_accessor(),end:prev()})}}else if(name=="set"){if(!is("punc")||is("punc","[")){name=get_ast(as_property_name(),start);return new AST_ObjectSetter({start:start,static:is_static,key:name,quote:name instanceof AST_SymbolMethod?property_token.quote:undefined,value:create_accessor(),end:prev()})}}}function import_(){var start=prev();var imported_name;var imported_names;if(is("name")){imported_name=as_symbol(AST_SymbolImport)}if(is("punc",",")){next()}if(is("punc","{")){next();imported_names=[];while(!is("punc","}")){imported_names.push(import_name());if(is("punc",",")){next()}}next()}if(imported_names||imported_name){expect_token("name","from")}var mod_str=S.token;if(mod_str.type!=="string"){unexpected()}next();return new AST_Import({start:start,imported_name:imported_name,imported_names:imported_names,module_name:new AST_String({start:mod_str,value:mod_str.value,quote:mod_str.quote,end:mod_str}),end:S.token})}function import_name(){var start=S.token;var foreign_name;var name;if(peek().value==="as"&&peek().type==="name"){foreign_name=as_symbol(AST_SymbolImportForeign);next()}name=as_symbol(AST_SymbolImport);if(foreign_name===undefined){foreign_name=new AST_SymbolImportForeign({name:name.name,start:name.start,end:name.end})}return new AST_NameImport({start:start,foreign_name:foreign_name,name:name,end:prev()})}function export_(){var start=S.token;var is_default;var exported_value;var exported_definition;if(is("keyword","default")){is_default=true;next()}var is_definition=is("keyword","var")||is("keyword","let")||is("keyword","const")||is("keyword","class")||is("keyword","function");if(is_definition){exported_definition=statement()}else{exported_value=expression();semicolon()}return new AST_Export({start:start,is_default:is_default,exported_value:exported_value,exported_definition:exported_definition,end:prev()})}function as_property_name(){var tmp=S.token;next();switch(tmp.type){case"punc":if(tmp.value==="["){var ex=expression(false);expect("]");return ex}else unexpected(tmp);case"operator":if(tmp.value==="*"){return null}if(["delete","in","instanceof","new","typeof","void"].indexOf(tmp.value)===-1){unexpected(tmp)}case"name":if(tmp.value==="yield"&&S.input.has_directive("use strict")&&!is_in_generator()){token_error(tmp,"Unexpected yield identifier inside strict mode")}case"string":case"num":case"keyword":case"atom":return tmp.value;default:unexpected(tmp)}}function as_name(){var tmp=S.token;next();switch(tmp.type){case"name":case"operator":case"keyword":case"atom":return tmp.value;default:unexpected()}}function _make_symbol(type){var name=S.token.value;return new(name=="this"?AST_This:name=="super"?AST_Super:type)({name:String(name),start:S.token,end:S.token})}function as_symbol(type,noerror){if(!is("name")){if(!noerror)croak("Name expected");return null}if(is("name","yield")&&S.input.has_directive("use strict")){token_error(S.prev,"Unexpected yield identifier inside strict mode")}var sym=_make_symbol(type);next();return sym}var subscripts=function(expr,allow_calls){var start=expr.start;if(is("punc",".")){next();return subscripts(new AST_Dot({start:start,expression:expr,property:as_name(),end:prev()}),allow_calls)}if(is("punc","[")){next();var prop=expression(true);expect("]");return subscripts(new AST_Sub({start:start,expression:expr,property:prop,end:prev()}),allow_calls)}if(allow_calls&&is("punc","(")){next();return subscripts(new AST_Call({start:start,expression:expr,args:call_args(),end:prev()}),true)}if(is("template_head")){return subscripts(new AST_PrefixedTemplateString({start:start,prefix:expr,template_string:template_string()}),allow_calls)}return expr};var call_args=embed_tokens(function call_args(){var first=true;var args=[];while(!is("punc",")")){if(first)first=false;else expect(",");if(is("expand","...")){next();args.push(new AST_Expansion({start:prev(),expression:expression(false)}))}else{args.push(expression(false))}}next();return args});var maybe_unary=function(allow_calls){var start=S.token;if(is("operator")&&UNARY_PREFIX(start.value)){next();handle_regexp();var ex=make_unary(AST_UnaryPrefix,start.value,maybe_unary(allow_calls));ex.start=start;ex.end=prev();return ex}var val=expr_atom(allow_calls);while(is("operator")&&UNARY_POSTFIX(S.token.value)&&!S.token.nlb){val=make_unary(AST_UnaryPostfix,S.token.value,val);val.start=start;val.end=S.token;next()}return val};function make_unary(ctor,op,expr){if((op=="++"||op=="--")&&!is_assignable(expr))croak("Invalid use of "+op+" operator");return new ctor({operator:op,expression:expr})}var expr_op=function(left,min_prec,no_in){var op=is("operator")?S.token.value:null;if(op=="in"&&no_in)op=null;if(op=="**"&&left instanceof AST_UnaryPrefix&&left.end===S.prev&&left.operator!=="--"&&left.operator!=="++")unexpected(left.start);var prec=op!=null?PRECEDENCE[op]:null;if(prec!=null&&(prec>min_prec||op==="**"&&min_prec===prec)){next();var right=expr_op(maybe_unary(true),prec,no_in);return expr_op(new AST_Binary({start:left.start,left:left,operator:op,right:right,end:right.end}),min_prec,no_in)}return left};function expr_ops(no_in){return expr_op(maybe_unary(true),0,no_in)}var maybe_conditional=function(no_in){var start=S.token;var expr=expr_ops(no_in);if(is("operator","?")){next();var yes=expression(false);expect(":");return new AST_Conditional({start:start,condition:expr,consequent:yes,alternative:expression(false,no_in),end:prev()})}return expr};function is_assignable(expr){if(!options.strict)return true;if(expr instanceof AST_This)return false;if(expr instanceof AST_Super)return false;return expr instanceof AST_PropAccess||expr instanceof AST_Symbol}var maybe_assign=function(no_in){var start=S.token;if(start.type=="name"&&start.value=="yield"){if(is_in_generator()){next();return _yield_expression()}else if(S.input.has_directive("use strict")){token_error(S.token,"Unexpected yield identifier inside strict mode")}}if(start.type=="punc"&&start.value=="("&&peek().value==")"){next();next();return arrow_function([])}if(is("name")&&is_token(peek(),"arrow")){var param=new AST_SymbolFunarg({name:start.value,start:start,end:start});next();return arrow_function([param])}var left=maybe_conditional(no_in);var val=S.token.value;if(is("operator")&&ASSIGNMENT(val)){if(is_assignable(left)){var walk=function(node){var newNode;if(node instanceof AST_Object){newNode=new AST_Destructuring({start:node.start,names:node.properties.map(walk),is_array:false,end:node.end});node=newNode}else if(node instanceof AST_Array){var names=[];for(var i=0;i<node.elements.length;i++){if(node.elements[i]instanceof AST_Expansion){if(i+1!==node.elements.length){token_error(node.elements[i].start,"Spread must the be last element in destructuring array")}node.elements[i].expression=walk(node.elements[i].expression)}names.push(walk(node.elements[i]))}newNode=new AST_Destructuring({start:node.start,names:names,is_array:true,end:node.end});node=newNode}else if(node instanceof AST_ObjectProperty){node.value=walk(node.value)}else if(node instanceof AST_Assign){node=new AST_DefaultAssign({start:node.start,left:node.left,operator:"=",right:node.right,end:node.end})}return node};left=walk(left);next();return new AST_Assign({start:start,left:left,operator:val,right:maybe_assign(no_in),end:prev()})}croak("Invalid assignment")}return left};var expression=function(commas,no_in){var start=S.token;var expr=maybe_assign(no_in);if(expr instanceof AST_SymbolRef&&is("arrow","=>")){expr=new AST_ArrowParametersOrSeq({start:expr.start,end:expr.end,expressions:[expr]});return arrow_function(expr)}if(commas&&is("punc",",")){next();return new AST_Seq({start:start,car:expr,cdr:expression(true,no_in),end:peek()})}return expr};function in_loop(cont){++S.in_loop;var ret=cont();--S.in_loop;return ret}if(options.expression){return expression(true)}return function(){var start=S.token;var body=[];S.input.push_directives_stack();while(!is("eof"))body.push(statement());S.input.pop_directives_stack();var end=prev();var toplevel=options.toplevel;if(toplevel){toplevel.body=toplevel.body.concat(body);toplevel.end=end}else{toplevel=new AST_Toplevel({start:start,body:body,end:end})}return toplevel}()}/***********************************************************************
+"use strict";var KEYWORDS="break case catch const continue debugger default delete do else finally for function if in instanceof new return switch throw try typeof var void while with";var KEYWORDS_ATOM="false null true";var RESERVED_WORDS="abstract boolean byte char class double enum export extends final float goto implements import int interface let long native package private protected public short static super synchronized this throws transient volatile yield"+" "+KEYWORDS_ATOM+" "+KEYWORDS;var KEYWORDS_BEFORE_EXPRESSION="return new delete throw else case";KEYWORDS=makePredicate(KEYWORDS);RESERVED_WORDS=makePredicate(RESERVED_WORDS);KEYWORDS_BEFORE_EXPRESSION=makePredicate(KEYWORDS_BEFORE_EXPRESSION);KEYWORDS_ATOM=makePredicate(KEYWORDS_ATOM);var OPERATOR_CHARS=makePredicate(characters("+-*&%=<>!?|~^"));var RE_HEX_NUMBER=/^0x[0-9a-f]+$/i;var RE_OCT_NUMBER=/^0[0-7]+$/;var OPERATORS=makePredicate(["in","instanceof","typeof","new","void","delete","++","--","+","-","!","~","&","|","^","*","/","%",">>","<<",">>>","<",">","<=",">=","==","===","!=","!==","?","=","+=","-=","/=","*=","%=",">>=","<<=",">>>=","|=","^=","&=","&&","||"]);var WHITESPACE_CHARS=makePredicate(characters(" \n\r\t\f\v \u2028\u2029 \ufeff"));var NEWLINE_CHARS=makePredicate(characters("\n\r\u2028\u2029"));var PUNC_BEFORE_EXPRESSION=makePredicate(characters("[{(,.;:"));var PUNC_CHARS=makePredicate(characters("[]{}(),;:"));var REGEXP_MODIFIERS=makePredicate(characters("gmsiy"));var UNICODE={letter:new 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tokenizer($TEXT,filename,html5_comments,shebang){var S={text:$TEXT,filename:filename,pos:0,tokpos:0,line:1,tokline:0,col:0,tokcol:0,newline_before:false,regex_allowed:false,comments_before:[],directives:{},directive_stack:[]};function peek(){return S.text.charAt(S.pos)}function next(signal_eof,in_string){var ch=S.text.charAt(S.pos++);if(signal_eof&&!ch)throw EX_EOF;if(NEWLINE_CHARS(ch)){S.newline_before=S.newline_before||!in_string;++S.line;S.col=0;if(!in_string&&ch=="\r"&&peek()=="\n"){++S.pos;ch="\n"}}else{++S.col}return ch}function forward(i){while(i-- >0)next()}function looking_at(str){return S.text.substr(S.pos,str.length)==str}function find_eol(){var text=S.text;for(var i=S.pos,n=S.text.length;i<n;++i){var ch=text[i];if(NEWLINE_CHARS(ch))return i}return-1}function find(what,signal_eof){var pos=S.text.indexOf(what,S.pos);if(signal_eof&&pos==-1)throw EX_EOF;return pos}function start_token(){S.tokline=S.line;S.tokcol=S.col;S.tokpos=S.pos}var prev_was_dot=false;function token(type,value,is_comment){S.regex_allowed=type=="operator"&&!UNARY_POSTFIX(value)||type=="keyword"&&KEYWORDS_BEFORE_EXPRESSION(value)||type=="punc"&&PUNC_BEFORE_EXPRESSION(value);prev_was_dot=type=="punc"&&value==".";var ret={type:type,value:value,line:S.tokline,col:S.tokcol,pos:S.tokpos,endline:S.line,endcol:S.col,endpos:S.pos,nlb:S.newline_before,file:filename};if(/^(?:num|string|regexp)$/i.test(type)){ret.raw=$TEXT.substring(ret.pos,ret.endpos)}if(!is_comment){ret.comments_before=S.comments_before;S.comments_before=[];for(var i=0,len=ret.comments_before.length;i<len;i++){ret.nlb=ret.nlb||ret.comments_before[i].nlb}}S.newline_before=false;return new AST_Token(ret)}function skip_whitespace(){while(WHITESPACE_CHARS(peek()))next()}function read_while(pred){var ret="",ch,i=0;while((ch=peek())&&pred(ch,i++))ret+=next();return ret}function parse_error(err){js_error(err,filename,S.tokline,S.tokcol,S.tokpos)}function read_num(prefix){var has_e=false,after_e=false,has_x=false,has_dot=prefix==".";var num=read_while(function(ch,i){var code=ch.charCodeAt(0);switch(code){case 120:case 88:return has_x?false:has_x=true;case 101:case 69:return has_x?true:has_e?false:has_e=after_e=true;case 45:return after_e||i==0&&!prefix;case 43:return after_e;case after_e=false,46:return!has_dot&&!has_x&&!has_e?has_dot=true:false}return is_alphanumeric_char(code)});if(prefix)num=prefix+num;if(RE_OCT_NUMBER.test(num)&&next_token.has_directive("use strict")){parse_error("Legacy octal literals are not allowed in strict mode")}var valid=parse_js_number(num);if(!isNaN(valid)){return token("num",valid)}else{parse_error("Invalid syntax: "+num)}}function read_escaped_char(in_string){var ch=next(true,in_string);switch(ch.charCodeAt(0)){case 110:return"\n";case 114:return"\r";case 116:return"\t";case 98:return"\b";case 118:return"\v";case 102:return"\f";case 120:return String.fromCharCode(hex_bytes(2));case 117:return String.fromCharCode(hex_bytes(4));case 10:return"";case 13:if(peek()=="\n"){next(true,in_string);return""}}if(ch>="0"&&ch<="7")return read_octal_escape_sequence(ch);return ch}function read_octal_escape_sequence(ch){var p=peek();if(p>="0"&&p<="7"){ch+=next(true);if(ch[0]<="3"&&(p=peek())>="0"&&p<="7")ch+=next(true)}if(ch==="0")return"\0";if(ch.length>0&&next_token.has_directive("use strict"))parse_error("Legacy octal escape sequences are not allowed in strict mode");return String.fromCharCode(parseInt(ch,8))}function hex_bytes(n){var num=0;for(;n>0;--n){var digit=parseInt(next(true),16);if(isNaN(digit))parse_error("Invalid hex-character pattern in string");num=num<<4|digit}return num}var read_string=with_eof_error("Unterminated string constant",function(quote_char){var quote=next(),ret="";for(;;){var ch=next(true,true);if(ch=="\\")ch=read_escaped_char(true);else if(NEWLINE_CHARS(ch))parse_error("Unterminated string constant");else if(ch==quote)break;ret+=ch}var tok=token("string",ret);tok.quote=quote_char;return tok});function skip_line_comment(type){var regex_allowed=S.regex_allowed;var i=find_eol(),ret;if(i==-1){ret=S.text.substr(S.pos);S.pos=S.text.length}else{ret=S.text.substring(S.pos,i);S.pos=i}S.col=S.tokcol+(S.pos-S.tokpos);S.comments_before.push(token(type,ret,true));S.regex_allowed=regex_allowed;return next_token}var skip_multiline_comment=with_eof_error("Unterminated multiline comment",function(){var regex_allowed=S.regex_allowed;var i=find("*/",true);var text=S.text.substring(S.pos,i).replace(/\r\n|\r|\u2028|\u2029/g,"\n");forward(text.length+2);S.comments_before.push(token("comment2",text,true));S.regex_allowed=regex_allowed;return next_token});function read_name(){var backslash=false,name="",ch,escaped=false,hex;while((ch=peek())!=null){if(!backslash){if(ch=="\\")escaped=backslash=true,next();else if(is_identifier_char(ch))name+=next();else break}else{if(ch!="u")parse_error("Expecting UnicodeEscapeSequence -- uXXXX");ch=read_escaped_char();if(!is_identifier_char(ch))parse_error("Unicode char: "+ch.charCodeAt(0)+" is not valid in identifier");name+=ch;backslash=false}}if(KEYWORDS(name)&&escaped){hex=name.charCodeAt(0).toString(16).toUpperCase();name="\\u"+"0000".substr(hex.length)+hex+name.slice(1)}return name}var read_regexp=with_eof_error("Unterminated regular expression",function(regexp){var prev_backslash=false,ch,in_class=false;while(ch=next(true))if(NEWLINE_CHARS(ch)){parse_error("Unexpected line terminator")}else if(prev_backslash){regexp+="\\"+ch;prev_backslash=false}else if(ch=="["){in_class=true;regexp+=ch}else if(ch=="]"&&in_class){in_class=false;regexp+=ch}else if(ch=="/"&&!in_class){break}else if(ch=="\\"){prev_backslash=true}else{regexp+=ch}var mods=read_name();try{return token("regexp",new RegExp(regexp,mods))}catch(e){parse_error(e.message)}});function read_operator(prefix){function grow(op){if(!peek())return op;var bigger=op+peek();if(OPERATORS(bigger)){next();return grow(bigger)}else{return op}}return token("operator",grow(prefix||next()))}function handle_slash(){next();switch(peek()){case"/":next();return skip_line_comment("comment1");case"*":next();return skip_multiline_comment()}return S.regex_allowed?read_regexp(""):read_operator("/")}function handle_dot(){next();return is_digit(peek().charCodeAt(0))?read_num("."):token("punc",".")}function read_word(){var word=read_name();if(prev_was_dot)return token("name",word);return KEYWORDS_ATOM(word)?token("atom",word):!KEYWORDS(word)?token("name",word):OPERATORS(word)?token("operator",word):token("keyword",word)}function with_eof_error(eof_error,cont){return function(x){try{return cont(x)}catch(ex){if(ex===EX_EOF)parse_error(eof_error);else throw ex}}}function next_token(force_regexp){if(force_regexp!=null)return read_regexp(force_regexp);for(;;){skip_whitespace();start_token();if(html5_comments){if(looking_at("<!--")){forward(4);skip_line_comment("comment3");continue}if(looking_at("-->")&&S.newline_before){forward(3);skip_line_comment("comment4");continue}}var ch=peek();if(!ch)return token("eof");var code=ch.charCodeAt(0);switch(code){case 34:case 39:return read_string(ch);case 46:return handle_dot();case 47:{var tok=handle_slash();if(tok===next_token)continue;return tok}}if(is_digit(code))return read_num();if(PUNC_CHARS(ch))return token("punc",next());if(OPERATOR_CHARS(ch))return read_operator();if(code==92||is_identifier_start(code))return read_word();if(shebang){if(S.pos==0&&looking_at("#!")){forward(2);skip_line_comment("comment5");continue}}break}parse_error("Unexpected character '"+ch+"'")}next_token.context=function(nc){if(nc)S=nc;return S};next_token.add_directive=function(directive){S.directive_stack[S.directive_stack.length-1].push(directive);if(S.directives[directive]===undefined){S.directives[directive]=1}else{S.directives[directive]++}};next_token.push_directives_stack=function(){S.directive_stack.push([])};next_token.pop_directives_stack=function(){var directives=S.directive_stack[S.directive_stack.length-1];for(var i=0;i<directives.length;i++){S.directives[directives[i]]--}S.directive_stack.pop()};next_token.has_directive=function(directive){return S.directives[directive]!==undefined&&S.directives[directive]>0};return next_token}var UNARY_PREFIX=makePredicate(["typeof","void","delete","--","++","!","~","-","+"]);var UNARY_POSTFIX=makePredicate(["--","++"]);var ASSIGNMENT=makePredicate(["=","+=","-=","/=","*=","%=",">>=","<<=",">>>=","|=","^=","&="]);var PRECEDENCE=function(a,ret){for(var i=0;i<a.length;++i){var b=a[i];for(var j=0;j<b.length;++j){ret[b[j]]=i+1}}return ret}([["||"],["&&"],["|"],["^"],["&"],["==","===","!=","!=="],["<",">","<=",">=","in","instanceof"],[">>","<<",">>>"],["+","-"],["*","/","%"]],{});var STATEMENTS_WITH_LABELS=array_to_hash(["for","do","while","switch"]);var ATOMIC_START_TOKEN=array_to_hash(["atom","num","string","regexp","name"]);function parse($TEXT,options){options=defaults(options,{strict:false,filename:null,toplevel:null,expression:false,html5_comments:true,bare_returns:false,shebang:true});var S={input:typeof $TEXT=="string"?tokenizer($TEXT,options.filename,options.html5_comments,options.shebang):$TEXT,token:null,prev:null,peeked:null,in_function:0,in_directives:true,in_loop:0,labels:[]};S.token=next();function is(type,value){return is_token(S.token,type,value)}function peek(){return S.peeked||(S.peeked=S.input())}function next(){S.prev=S.token;if(S.peeked){S.token=S.peeked;S.peeked=null}else{S.token=S.input()}S.in_directives=S.in_directives&&(S.token.type=="string"||is("punc",";"));return S.token}function prev(){return S.prev}function croak(msg,line,col,pos){var ctx=S.input.context();js_error(msg,ctx.filename,line!=null?line:ctx.tokline,col!=null?col:ctx.tokcol,pos!=null?pos:ctx.tokpos)}function token_error(token,msg){croak(msg,token.line,token.col)}function unexpected(token){if(token==null)token=S.token;token_error(token,"Unexpected token: "+token.type+" ("+token.value+")")}function expect_token(type,val){if(is(type,val)){return next()}token_error(S.token,"Unexpected token "+S.token.type+" «"+S.token.value+"»"+", expected "+type+" «"+val+"»")}function expect(punc){return expect_token("punc",punc)}function can_insert_semicolon(){return!options.strict&&(S.token.nlb||is("eof")||is("punc","}"))}function semicolon(optional){if(is("punc",";"))next();else if(!optional&&!can_insert_semicolon())unexpected()}function parenthesised(){expect("(");var exp=expression(true);expect(")");return exp}function embed_tokens(parser){return function(){var start=S.token;var expr=parser();var end=prev();expr.start=start;expr.end=end;return expr}}function handle_regexp(){if(is("operator","/")||is("operator","/=")){S.peeked=null;S.token=S.input(S.token.value.substr(1))}}var statement=embed_tokens(function(){var tmp;handle_regexp();switch(S.token.type){case"string":var dir=false;if(S.in_directives===true){if((is_token(peek(),"punc",";")||peek().nlb)&&S.token.raw.indexOf("\\")===-1){S.input.add_directive(S.token.value)}else{S.in_directives=false}}var dir=S.in_directives,stat=simple_statement();if(dir){return new AST_Directive({start:stat.body.start,end:stat.body.end,quote:stat.body.quote,value:stat.body.value})}return stat;case"num":case"regexp":case"operator":case"atom":return simple_statement();case"name":return is_token(peek(),"punc",":")?labeled_statement():simple_statement();case"punc":switch(S.token.value){case"{":return new AST_BlockStatement({start:S.token,body:block_(),end:prev()});case"[":case"(":return simple_statement();case";":S.in_directives=false;next();return new AST_EmptyStatement;default:unexpected()}case"keyword":switch(tmp=S.token.value,next(),tmp){case"break":return break_cont(AST_Break);case"continue":return break_cont(AST_Continue);case"debugger":semicolon();return new AST_Debugger;case"do":return new AST_Do({body:in_loop(statement),condition:(expect_token("keyword","while"),tmp=parenthesised(),semicolon(true),tmp)});case"while":return new AST_While({condition:parenthesised(),body:in_loop(statement)});case"for":return for_();case"function":return function_(AST_Defun);case"if":return if_();case"return":if(S.in_function==0&&!options.bare_returns)croak("'return' outside of function");return new AST_Return({value:is("punc",";")?(next(),null):can_insert_semicolon()?null:(tmp=expression(true),semicolon(),tmp)});case"switch":return new AST_Switch({expression:parenthesised(),body:in_loop(switch_body_)});case"throw":if(S.token.nlb)croak("Illegal newline after 'throw'");return new AST_Throw({value:(tmp=expression(true),semicolon(),tmp)});case"try":return try_();case"var":return tmp=var_(),semicolon(),tmp;case"const":return tmp=const_(),semicolon(),tmp;case"with":if(S.input.has_directive("use strict")){croak("Strict mode may not include a with statement")}return new AST_With({expression:parenthesised(),body:statement()});default:unexpected()}}});function labeled_statement(){var label=as_symbol(AST_Label);if(find_if(function(l){return l.name==label.name},S.labels)){croak("Label "+label.name+" defined twice")}expect(":");S.labels.push(label);var stat=statement();S.labels.pop();if(!(stat instanceof AST_IterationStatement)){label.references.forEach(function(ref){if(ref instanceof AST_Continue){ref=ref.label.start;croak("Continue label `"+label.name+"` refers to non-IterationStatement.",ref.line,ref.col,ref.pos)}})}return new AST_LabeledStatement({body:stat,label:label})}function simple_statement(tmp){return new AST_SimpleStatement({body:(tmp=expression(true),semicolon(),tmp)})}function break_cont(type){var label=null,ldef;if(!can_insert_semicolon()){label=as_symbol(AST_LabelRef,true)}if(label!=null){ldef=find_if(function(l){return l.name==label.name},S.labels);if(!ldef)croak("Undefined label "+label.name);label.thedef=ldef}else if(S.in_loop==0)croak(type.TYPE+" not inside a loop or switch");semicolon();var stat=new type({label:label});if(ldef)ldef.references.push(stat);return stat}function for_(){expect("(");var init=null;if(!is("punc",";")){init=is("keyword","var")?(next(),var_(true)):expression(true,true);if(is("operator","in")){if(init instanceof AST_Var&&init.definitions.length>1)croak("Only one variable declaration allowed in for..in loop");next();return for_in(init)}}return regular_for(init)}function regular_for(init){expect(";");var test=is("punc",";")?null:expression(true);expect(";");var step=is("punc",")")?null:expression(true);expect(")");return new AST_For({init:init,condition:test,step:step,body:in_loop(statement)})}function for_in(init){var lhs=init instanceof AST_Var?init.definitions[0].name:null;var obj=expression(true);expect(")");return new AST_ForIn({init:init,name:lhs,object:obj,body:in_loop(statement)})}var function_=function(ctor){var in_statement=ctor===AST_Defun;var name=is("name")?as_symbol(in_statement?AST_SymbolDefun:AST_SymbolLambda):null;if(in_statement&&!name)unexpected();expect("(");return new ctor({name:name,argnames:function(first,a){while(!is("punc",")")){if(first)first=false;else expect(",");a.push(as_symbol(AST_SymbolFunarg))}next();return a}(true,[]),body:function(loop,labels){++S.in_function;S.in_directives=true;S.input.push_directives_stack();S.in_loop=0;S.labels=[];var a=block_();S.input.pop_directives_stack();--S.in_function;S.in_loop=loop;S.labels=labels;return a}(S.in_loop,S.labels)})};function if_(){var cond=parenthesised(),body=statement(),belse=null;if(is("keyword","else")){next();belse=statement()}return new AST_If({condition:cond,body:body,alternative:belse})}function block_(){expect("{");var a=[];while(!is("punc","}")){if(is("eof"))unexpected();a.push(statement())}next();return a}function switch_body_(){expect("{");var a=[],cur=null,branch=null,tmp;while(!is("punc","}")){if(is("eof"))unexpected();if(is("keyword","case")){if(branch)branch.end=prev();cur=[];branch=new AST_Case({start:(tmp=S.token,next(),tmp),expression:expression(true),body:cur});a.push(branch);expect(":")}else if(is("keyword","default")){if(branch)branch.end=prev();cur=[];branch=new AST_Default({start:(tmp=S.token,next(),expect(":"),tmp),body:cur});a.push(branch)}else{if(!cur)unexpected();cur.push(statement())}}if(branch)branch.end=prev();next();return a}function try_(){var body=block_(),bcatch=null,bfinally=null;if(is("keyword","catch")){var start=S.token;next();expect("(");var name=as_symbol(AST_SymbolCatch);expect(")");bcatch=new AST_Catch({start:start,argname:name,body:block_(),end:prev()})}if(is("keyword","finally")){var start=S.token;next();bfinally=new AST_Finally({start:start,body:block_(),end:prev()})}if(!bcatch&&!bfinally)croak("Missing catch/finally blocks");return new AST_Try({body:body,bcatch:bcatch,bfinally:bfinally})}function vardefs(no_in,in_const){var a=[];for(;;){a.push(new AST_VarDef({start:S.token,name:as_symbol(in_const?AST_SymbolConst:AST_SymbolVar),value:is("operator","=")?(next(),expression(false,no_in)):null,end:prev()}));if(!is("punc",","))break;next()}return a}var var_=function(no_in){return new AST_Var({start:prev(),definitions:vardefs(no_in,false),end:prev()})};var const_=function(){return new AST_Const({start:prev(),definitions:vardefs(false,true),end:prev()})};var new_=function(allow_calls){var start=S.token;expect_token("operator","new");var newexp=expr_atom(false),args;if(is("punc","(")){next();args=expr_list(")")}else{args=[]}return subscripts(new AST_New({start:start,expression:newexp,args:args,end:prev()}),allow_calls)};function as_atom_node(){var tok=S.token,ret;switch(tok.type){case"name":case"keyword":ret=_make_symbol(AST_SymbolRef);break;case"num":ret=new AST_Number({start:tok,end:tok,value:tok.value});break;case"string":ret=new AST_String({start:tok,end:tok,value:tok.value,quote:tok.quote});break;case"regexp":ret=new AST_RegExp({start:tok,end:tok,value:tok.value});break;case"atom":switch(tok.value){case"false":ret=new AST_False({start:tok,end:tok});break;case"true":ret=new AST_True({start:tok,end:tok});break;case"null":ret=new AST_Null({start:tok,end:tok});break}break;case"operator":if(!is_identifier_string(tok.value)){croak("Invalid getter/setter name: "+tok.value,tok.line,tok.col,tok.pos)}ret=_make_symbol(AST_SymbolRef);break}next();return ret}var expr_atom=function(allow_calls){if(is("operator","new")){return new_(allow_calls)}var start=S.token;if(is("punc")){switch(start.value){case"(":next();var ex=expression(true);ex.start=start;ex.end=S.token;expect(")");return subscripts(ex,allow_calls);case"[":return subscripts(array_(),allow_calls);case"{":return subscripts(object_(),allow_calls)}unexpected()}if(is("keyword","function")){next();var func=function_(AST_Function);func.start=start;func.end=prev();return subscripts(func,allow_calls)}if(ATOMIC_START_TOKEN[S.token.type]){return subscripts(as_atom_node(),allow_calls)}unexpected()};function expr_list(closing,allow_trailing_comma,allow_empty){var first=true,a=[];while(!is("punc",closing)){if(first)first=false;else expect(",");if(allow_trailing_comma&&is("punc",closing))break;if(is("punc",",")&&allow_empty){a.push(new AST_Hole({start:S.token,end:S.token}))}else{a.push(expression(false))}}next();return a}var array_=embed_tokens(function(){expect("[");return new AST_Array({elements:expr_list("]",!options.strict,true)})});var create_accessor=embed_tokens(function(){return function_(AST_Accessor)});var object_=embed_tokens(function(){expect("{");var first=true,a=[];while(!is("punc","}")){if(first)first=false;else expect(",");if(!options.strict&&is("punc","}"))break;var start=S.token;var type=start.type;var name=as_property_name();if(type=="name"&&!is("punc",":")){if(name=="get"){a.push(new AST_ObjectGetter({start:start,key:as_atom_node(),value:create_accessor(),end:prev()}));continue}if(name=="set"){a.push(new AST_ObjectSetter({start:start,key:as_atom_node(),value:create_accessor(),end:prev()}));continue}}expect(":")
+;a.push(new AST_ObjectKeyVal({start:start,quote:start.quote,key:name,value:expression(false),end:prev()}))}next();return new AST_Object({properties:a})});function as_property_name(){var tmp=S.token;next();switch(tmp.type){case"num":case"string":case"name":case"operator":case"keyword":case"atom":return tmp.value;default:unexpected()}}function as_name(){var tmp=S.token;next();switch(tmp.type){case"name":case"operator":case"keyword":case"atom":return tmp.value;default:unexpected()}}function _make_symbol(type){var name=S.token.value;return new(name=="this"?AST_This:type)({name:String(name),start:S.token,end:S.token})}function as_symbol(type,noerror){if(!is("name")){if(!noerror)croak("Name expected");return null}var sym=_make_symbol(type);next();return sym}var subscripts=function(expr,allow_calls){var start=expr.start;if(is("punc",".")){next();return subscripts(new AST_Dot({start:start,expression:expr,property:as_name(),end:prev()}),allow_calls)}if(is("punc","[")){next();var prop=expression(true);expect("]");return subscripts(new AST_Sub({start:start,expression:expr,property:prop,end:prev()}),allow_calls)}if(allow_calls&&is("punc","(")){next();return subscripts(new AST_Call({start:start,expression:expr,args:expr_list(")"),end:prev()}),true)}return expr};var maybe_unary=function(allow_calls){var start=S.token;if(is("operator")&&UNARY_PREFIX(start.value)){next();handle_regexp();var ex=make_unary(AST_UnaryPrefix,start.value,maybe_unary(allow_calls));ex.start=start;ex.end=prev();return ex}var val=expr_atom(allow_calls);while(is("operator")&&UNARY_POSTFIX(S.token.value)&&!S.token.nlb){val=make_unary(AST_UnaryPostfix,S.token.value,val);val.start=start;val.end=S.token;next()}return val};function make_unary(ctor,op,expr){if((op=="++"||op=="--")&&!is_assignable(expr))croak("Invalid use of "+op+" operator");return new ctor({operator:op,expression:expr})}var expr_op=function(left,min_prec,no_in){var op=is("operator")?S.token.value:null;if(op=="in"&&no_in)op=null;var prec=op!=null?PRECEDENCE[op]:null;if(prec!=null&&prec>min_prec){next();var right=expr_op(maybe_unary(true),prec,no_in);return expr_op(new AST_Binary({start:left.start,left:left,operator:op,right:right,end:right.end}),min_prec,no_in)}return left};function expr_ops(no_in){return expr_op(maybe_unary(true),0,no_in)}var maybe_conditional=function(no_in){var start=S.token;var expr=expr_ops(no_in);if(is("operator","?")){next();var yes=expression(false);expect(":");return new AST_Conditional({start:start,condition:expr,consequent:yes,alternative:expression(false,no_in),end:prev()})}return expr};function is_assignable(expr){if(!options.strict)return true;if(expr instanceof AST_This)return false;return expr instanceof AST_PropAccess||expr instanceof AST_Symbol}var maybe_assign=function(no_in){var start=S.token;var left=maybe_conditional(no_in),val=S.token.value;if(is("operator")&&ASSIGNMENT(val)){if(is_assignable(left)){next();return new AST_Assign({start:start,left:left,operator:val,right:maybe_assign(no_in),end:prev()})}croak("Invalid assignment")}return left};var expression=function(commas,no_in){var start=S.token;var expr=maybe_assign(no_in);if(commas&&is("punc",",")){next();return new AST_Seq({start:start,car:expr,cdr:expression(true,no_in),end:peek()})}return expr};function in_loop(cont){++S.in_loop;var ret=cont();--S.in_loop;return ret}if(options.expression){return expression(true)}return function(){var start=S.token;var body=[];S.input.push_directives_stack();while(!is("eof"))body.push(statement());S.input.pop_directives_stack();var end=prev();var toplevel=options.toplevel;if(toplevel){toplevel.body=toplevel.body.concat(body);toplevel.end=end}else{toplevel=new AST_Toplevel({start:start,body:body,end:end})}return toplevel}()}/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor.
https://github.com/mishoo/UglifyJS2
-------------------------------- (C) ---------------------------------
@@ -167,11 +166,11 @@
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
***********************************************************************/
-"use strict";function TreeTransformer(before,after){TreeWalker.call(this);this.before=before;this.after=after}TreeTransformer.prototype=new TreeWalker;(function(undefined){function _(node,descend){node.DEFMETHOD("transform",function(tw,in_list){var x,y;tw.push(this);if(tw.before)x=tw.before(this,descend,in_list);if(x===undefined){if(!tw.after){x=this;descend(x,tw)}else{tw.stack[tw.stack.length-1]=x=this;descend(x,tw);y=tw.after(x,in_list);if(y!==undefined)x=y}}tw.pop(this);return x})}function do_list(list,tw){return MAP(list,function(node){return node.transform(tw,true)})}_(AST_Node,noop);_(AST_LabeledStatement,function(self,tw){self.label=self.label.transform(tw);self.body=self.body.transform(tw)});_(AST_SimpleStatement,function(self,tw){self.body=self.body.transform(tw)});_(AST_Block,function(self,tw){self.body=do_list(self.body,tw)});_(AST_DWLoop,function(self,tw){self.condition=self.condition.transform(tw);self.body=self.body.transform(tw)});_(AST_For,function(self,tw){if(self.init)self.init=self.init.transform(tw);if(self.condition)self.condition=self.condition.transform(tw);if(self.step)self.step=self.step.transform(tw);self.body=self.body.transform(tw)});_(AST_ForIn,function(self,tw){self.init=self.init.transform(tw);self.object=self.object.transform(tw);self.body=self.body.transform(tw)});_(AST_With,function(self,tw){self.expression=self.expression.transform(tw);self.body=self.body.transform(tw)});_(AST_Exit,function(self,tw){if(self.value)self.value=self.value.transform(tw)});_(AST_LoopControl,function(self,tw){if(self.label)self.label=self.label.transform(tw)});_(AST_If,function(self,tw){self.condition=self.condition.transform(tw);self.body=self.body.transform(tw);if(self.alternative)self.alternative=self.alternative.transform(tw)});_(AST_Switch,function(self,tw){self.expression=self.expression.transform(tw);self.body=do_list(self.body,tw)});_(AST_Case,function(self,tw){self.expression=self.expression.transform(tw);self.body=do_list(self.body,tw)});_(AST_Try,function(self,tw){self.body=do_list(self.body,tw);if(self.bcatch)self.bcatch=self.bcatch.transform(tw);if(self.bfinally)self.bfinally=self.bfinally.transform(tw)});_(AST_Catch,function(self,tw){self.argname=self.argname.transform(tw);self.body=do_list(self.body,tw)});_(AST_Definitions,function(self,tw){self.definitions=do_list(self.definitions,tw)});_(AST_VarDef,function(self,tw){self.name=self.name.transform(tw);if(self.value)self.value=self.value.transform(tw)});_(AST_Destructuring,function(self,tw){self.names=do_list(self.names,tw)});_(AST_Lambda,function(self,tw){if(self.name)self.name=self.name.transform(tw);self.argnames=do_list(self.argnames,tw);if(self.body instanceof AST_Node){self.body=self.body.transform(tw)}else{self.body=do_list(self.body,tw)}});_(AST_Call,function(self,tw){self.expression=self.expression.transform(tw);self.args=do_list(self.args,tw)});_(AST_Seq,function(self,tw){self.car=self.car.transform(tw);self.cdr=self.cdr.transform(tw)});_(AST_Dot,function(self,tw){self.expression=self.expression.transform(tw)});_(AST_Sub,function(self,tw){self.expression=self.expression.transform(tw);self.property=self.property.transform(tw)});_(AST_Yield,function(self,tw){if(self.expression)self.expression=self.expression.transform(tw)});_(AST_Unary,function(self,tw){self.expression=self.expression.transform(tw)});_(AST_Binary,function(self,tw){self.left=self.left.transform(tw);self.right=self.right.transform(tw)});_(AST_Conditional,function(self,tw){self.condition=self.condition.transform(tw);self.consequent=self.consequent.transform(tw);self.alternative=self.alternative.transform(tw)});_(AST_Array,function(self,tw){self.elements=do_list(self.elements,tw)});_(AST_Object,function(self,tw){self.properties=do_list(self.properties,tw)});_(AST_ObjectProperty,function(self,tw){if(self.key instanceof AST_Node){self.key=self.key.transform(tw)}self.value=self.value.transform(tw)});_(AST_Class,function(self,tw){if(self.name)self.name=self.name.transform(tw);if(self.extends)self.extends=self.extends.transform(tw);self.properties=do_list(self.properties,tw)});_(AST_Expansion,function(self,tw){self.expression=self.expression.transform(tw)});_(AST_TemplateString,function(self,tw){for(var i=0;i<self.segments.length;i++){if(!(self.segments[i]instanceof AST_TemplateSegment)){self.segments[i]=self.segments[i].transform(tw)}}});_(AST_PrefixedTemplateString,function(self,tw){self.template_string=self.template_string.transform(tw)})})();/***********************************************************************
+"use strict";function TreeTransformer(before,after){TreeWalker.call(this);this.before=before;this.after=after}TreeTransformer.prototype=new TreeWalker;(function(undefined){function _(node,descend){node.DEFMETHOD("transform",function(tw,in_list){var x,y;tw.push(this);if(tw.before)x=tw.before(this,descend,in_list);if(x===undefined){if(!tw.after){x=this;descend(x,tw)}else{tw.stack[tw.stack.length-1]=x=this;descend(x,tw);y=tw.after(x,in_list);if(y!==undefined)x=y}}tw.pop(this);return x})}function do_list(list,tw){return MAP(list,function(node){return node.transform(tw,true)})}_(AST_Node,noop);_(AST_LabeledStatement,function(self,tw){self.label=self.label.transform(tw);self.body=self.body.transform(tw)});_(AST_SimpleStatement,function(self,tw){self.body=self.body.transform(tw)});_(AST_Block,function(self,tw){self.body=do_list(self.body,tw)});_(AST_DWLoop,function(self,tw){self.condition=self.condition.transform(tw);self.body=self.body.transform(tw)});_(AST_For,function(self,tw){if(self.init)self.init=self.init.transform(tw);if(self.condition)self.condition=self.condition.transform(tw);if(self.step)self.step=self.step.transform(tw);self.body=self.body.transform(tw)});_(AST_ForIn,function(self,tw){self.init=self.init.transform(tw);self.object=self.object.transform(tw);self.body=self.body.transform(tw)});_(AST_With,function(self,tw){self.expression=self.expression.transform(tw);self.body=self.body.transform(tw)});_(AST_Exit,function(self,tw){if(self.value)self.value=self.value.transform(tw)});_(AST_LoopControl,function(self,tw){if(self.label)self.label=self.label.transform(tw)});_(AST_If,function(self,tw){self.condition=self.condition.transform(tw);self.body=self.body.transform(tw);if(self.alternative)self.alternative=self.alternative.transform(tw)});_(AST_Switch,function(self,tw){self.expression=self.expression.transform(tw);self.body=do_list(self.body,tw)});_(AST_Case,function(self,tw){self.expression=self.expression.transform(tw);self.body=do_list(self.body,tw)});_(AST_Try,function(self,tw){self.body=do_list(self.body,tw);if(self.bcatch)self.bcatch=self.bcatch.transform(tw);if(self.bfinally)self.bfinally=self.bfinally.transform(tw)});_(AST_Catch,function(self,tw){self.argname=self.argname.transform(tw);self.body=do_list(self.body,tw)});_(AST_Definitions,function(self,tw){self.definitions=do_list(self.definitions,tw)});_(AST_VarDef,function(self,tw){self.name=self.name.transform(tw);if(self.value)self.value=self.value.transform(tw)});_(AST_Lambda,function(self,tw){if(self.name)self.name=self.name.transform(tw);self.argnames=do_list(self.argnames,tw);self.body=do_list(self.body,tw)});_(AST_Call,function(self,tw){self.expression=self.expression.transform(tw);self.args=do_list(self.args,tw)});_(AST_Seq,function(self,tw){self.car=self.car.transform(tw);self.cdr=self.cdr.transform(tw)});_(AST_Dot,function(self,tw){self.expression=self.expression.transform(tw)});_(AST_Sub,function(self,tw){self.expression=self.expression.transform(tw);self.property=self.property.transform(tw)});_(AST_Unary,function(self,tw){self.expression=self.expression.transform(tw)});_(AST_Binary,function(self,tw){self.left=self.left.transform(tw);self.right=self.right.transform(tw)});_(AST_Conditional,function(self,tw){self.condition=self.condition.transform(tw);self.consequent=self.consequent.transform(tw);self.alternative=self.alternative.transform(tw)});_(AST_Array,function(self,tw){self.elements=do_list(self.elements,tw)});_(AST_Object,function(self,tw){self.properties=do_list(self.properties,tw)});_(AST_ObjectProperty,function(self,tw){self.value=self.value.transform(tw)})})();/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor.
https://github.com/mishoo/UglifyJS2
-------------------------------- (C) ---------------------------------
@@ -209,11 +208,11 @@
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
***********************************************************************/
-"use strict";function SymbolDef(scope,index,orig){this.name=orig.name;this.orig=[orig];this.scope=scope;this.references=[];this.global=false;this.export=false;this.mangled_name=null;this.object_destructuring_arg=false;this.undeclared=false;this.index=index;this.id=SymbolDef.next_id++}SymbolDef.next_id=1;SymbolDef.prototype={unmangleable:function(options){if(!options)options={};return this.global&&!options.toplevel||this.export||this.object_destructuring_arg||this.undeclared||!options.eval&&(this.scope.uses_eval||this.scope.uses_with)||options.keep_fnames&&(this.orig[0]instanceof AST_SymbolLambda||this.orig[0]instanceof AST_SymbolDefun)||this.orig[0]instanceof AST_SymbolMethod||options.keep_classnames&&(this.orig[0]instanceof AST_SymbolClass||this.orig[0]instanceof AST_SymbolDefClass)},mangle:function(options){var cache=options.cache&&options.cache.props;if(this.global&&cache&&cache.has(this.name)){this.mangled_name=cache.get(this.name)}else if(!this.mangled_name&&!this.unmangleable(options)){var s=this.scope;if(!options.screw_ie8&&this.orig[0]instanceof AST_SymbolLambda)s=s.parent_scope;this.mangled_name=s.next_mangled(options,this);if(this.global&&cache){cache.set(this.name,this.mangled_name)}}}};AST_Toplevel.DEFMETHOD("figure_out_scope",function(options){options=defaults(options,{screw_ie8:true,cache:null});var self=this;var scope=self.parent_scope=null;var labels=new Dictionary;var defun=null;var in_destructuring=null;var in_export=false;var in_block=0;var tw=new TreeWalker(function(node,descend){if(node.is_block_scope()){var save_scope=scope;scope=new AST_Scope(node);scope.init_scope_vars();scope.parent_scope=save_scope;if(!(node instanceof AST_Scope)){scope.uses_with=save_scope.uses_with;scope.uses_eval=save_scope.uses_eval;scope.directives=save_scope.directives}descend();scope=save_scope;return true}if(node instanceof AST_Destructuring&&node.is_array===false){in_destructuring=node;descend();in_destructuring=null;return true}if(node instanceof AST_Scope){node.init_scope_vars();var save_scope=node.parent_scope=scope;var save_defun=defun;var save_labels=labels;defun=scope=node;labels=new Dictionary;descend();scope=save_scope;defun=save_defun;labels=save_labels;return true}if(node instanceof AST_Export){in_export=true;descend();in_export=false;return true}if(node instanceof AST_BlockStatement||node instanceof AST_Switch||node instanceof AST_Try||node instanceof AST_Catch||node instanceof AST_Finally){in_block++;descend();in_block--;return true}if(node instanceof AST_LabeledStatement){var l=node.label;if(labels.has(l.name)){throw new Error(string_template("Label {name} defined twice",l))}labels.set(l.name,l);descend();labels.del(l.name);return true}if(node instanceof AST_With){for(var s=scope;s;s=s.parent_scope)s.uses_with=true;return}if(node instanceof AST_Symbol){node.scope=scope}if(node instanceof AST_SymbolFunarg){node.object_destructuring_arg=!!in_destructuring}if(node instanceof AST_Label){node.thedef=node;node.references=[]}if(node instanceof AST_SymbolLambda){defun.def_function(node,in_export,in_block)}else if(node instanceof AST_SymbolDefun){var parent_lambda=defun.parent_scope;while(parent_lambda.is_block_scope()){parent_lambda=parent_lambda.parent_scope}(node.scope=parent_lambda).def_function(node,in_export,in_block)}else if(node instanceof AST_SymbolClass){defun.def_variable(node,in_export,in_block)}else if(node instanceof AST_SymbolImport){scope.def_variable(node,in_export,in_block)}else if(node instanceof AST_SymbolDefClass){(node.scope=defun.parent_scope).def_function(node,in_export,in_block)}else if(node instanceof AST_SymbolVar||node instanceof AST_SymbolConst||node instanceof AST_SymbolLet){var def=(node instanceof AST_SymbolBlockDeclaration?scope:defun).def_variable(node,in_export,in_block);def.destructuring=in_destructuring;def.init=tw.parent().value}else if(node instanceof AST_SymbolCatch){(options.screw_ie8?scope:defun).def_variable(node,in_export,in_block)}else if(node instanceof AST_LabelRef){var sym=labels.get(node.name);if(!sym)throw new Error(string_template("Undefined label {name} [{line},{col}]",{name:node.name,line:node.start.line,col:node.start.col}));node.thedef=sym}});self.walk(tw);var func=null;var cls=null;var globals=self.globals=new Dictionary;var tw=new TreeWalker(function(node,descend){if(node instanceof AST_Lambda){var prev_func=func;func=node;descend();func=prev_func;return true}if(node instanceof AST_Class){var prev_cls=cls;cls=node;descend();cls=prev_cls;return true}if(node instanceof AST_LoopControl&&node.label){node.label.thedef.references.push(node);return true}if(node instanceof AST_SymbolRef){var name=node.name;if(name=="eval"&&tw.parent()instanceof AST_Call){for(var s=node.scope;s&&!s.uses_eval;s=s.parent_scope){s.uses_eval=true}}var sym=node.scope.find_variable(name);if(node.scope instanceof AST_Lambda&&name=="arguments"){node.scope.uses_arguments=true}if(!sym){sym=self.def_global(node)}node.thedef=sym;node.reference(options);return true}});self.walk(tw);if(options.cache){this.cname=options.cache.cname}});AST_Toplevel.DEFMETHOD("def_global",function(node){var globals=this.globals,name=node.name;if(globals.has(name)){return globals.get(name)}else{var g=new SymbolDef(this,globals.size(),node);g.undeclared=true;g.global=true;globals.set(name,g);return g}});AST_Scope.DEFMETHOD("init_scope_vars",function(){this.variables=new Dictionary;this.functions=new Dictionary;this.uses_with=false;this.uses_eval=false;this.parent_scope=null;this.enclosed=[];this.cname=-1});AST_Node.DEFMETHOD("is_block_scope",function(){return false});AST_Block.DEFMETHOD("is_block_scope",function(){return!(this instanceof AST_Lambda)&&!(this instanceof AST_Toplevel)&&!(this instanceof AST_Class)&&!(this instanceof AST_SwitchBranch)});AST_Lambda.DEFMETHOD("init_scope_vars",function(){AST_Scope.prototype.init_scope_vars.apply(this,arguments);this.uses_arguments=false;var symbol=new AST_VarDef({name:"arguments",start:this.start,end:this.end});var def=new SymbolDef(this,this.variables.size(),symbol);this.variables.set(symbol.name,def)});AST_SymbolRef.DEFMETHOD("reference",function(options){var def=this.definition();def.references.push(this);var s=this.scope;while(s){push_uniq(s.enclosed,def);if(options.keep_fnames){s.functions.each(function(d){push_uniq(def.scope.enclosed,d)})}if(s===def.scope)break;s=s.parent_scope}});AST_Scope.DEFMETHOD("find_variable",function(name){if(name instanceof AST_Symbol)name=name.name;return this.variables.get(name)||this.parent_scope&&this.parent_scope.find_variable(name)});AST_Scope.DEFMETHOD("def_function",function(symbol,in_export,in_block){this.functions.set(symbol.name,this.def_variable(symbol,in_export,in_block))});AST_Scope.DEFMETHOD("def_variable",function(symbol,in_export,in_block){var def;if(!this.variables.has(symbol.name)){def=new SymbolDef(this,this.variables.size(),symbol);this.variables.set(symbol.name,def);def.object_destructuring_arg=symbol.object_destructuring_arg;if(in_export){def.export=true}if(in_block&&symbol instanceof AST_SymbolBlockDeclaration){def.global=false}else{def.global=!this.parent_scope}}else{def=this.variables.get(symbol.name);def.orig.push(symbol)}return symbol.thedef=def});AST_Scope.DEFMETHOD("next_mangled",function(options){var ext=this.enclosed;out:while(true){var m=base54(++this.cname);if(!is_identifier(m))continue;if(options.except.indexOf(m)>=0)continue;for(var i=ext.length;--i>=0;){var sym=ext[i];var name=sym.mangled_name||sym.unmangleable(options)&&sym.name;if(m==name)continue out}return m}});AST_Function.DEFMETHOD("next_mangled",function(options,def){var tricky_def=def.orig[0]instanceof AST_SymbolFunarg&&this.name&&this.name.definition();var tricky_name=tricky_def?tricky_def.mangled_name||tricky_def.name:null;while(true){var name=AST_Lambda.prototype.next_mangled.call(this,options,def);if(!tricky_name||tricky_name!=name)return name}});AST_Symbol.DEFMETHOD("unmangleable",function(options){var def=this.definition();return def&&def.unmangleable(options)});AST_SymbolAccessor.DEFMETHOD("unmangleable",function(){return true});AST_Label.DEFMETHOD("unmangleable",function(){return false});AST_Symbol.DEFMETHOD("unreferenced",function(){return this.definition().references.length==0&&!(this.scope.uses_eval||this.scope.uses_with)});AST_Symbol.DEFMETHOD("undeclared",function(){return this.definition().undeclared});AST_LabelRef.DEFMETHOD("undeclared",function(){return false});AST_Label.DEFMETHOD("undeclared",function(){return false});AST_Symbol.DEFMETHOD("definition",function(){return this.thedef});AST_Symbol.DEFMETHOD("global",function(){return this.definition().global});AST_Toplevel.DEFMETHOD("_default_mangler_options",function(options){return defaults(options,{except:[],eval:false,sort:false,toplevel:false,screw_ie8:true,keep_fnames:false,keep_classnames:false})});AST_Toplevel.DEFMETHOD("mangle_names",function(options){options=this._default_mangler_options(options);options.except.push("arguments");var lname=-1;var to_mangle=[];if(options.cache){this.globals.each(function(symbol){if(options.except.indexOf(symbol.name)<0){to_mangle.push(symbol)}})}var tw=new TreeWalker(function(node,descend){if(node instanceof AST_LabeledStatement){var save_nesting=lname;descend();lname=save_nesting;return true}if(node instanceof AST_Scope){var p=tw.parent(),a=[];node.variables.each(function(symbol){if(options.except.indexOf(symbol.name)<0){a.push(symbol)}});to_mangle.push.apply(to_mangle,a);return}if(node instanceof AST_Label){var name;do name=base54(++lname);while(!is_identifier(name));node.mangled_name=name;return true}var mangle_with_block_scope=options.screw_ie8&&node instanceof AST_SymbolCatch||node instanceof AST_SymbolBlockDeclaration;if(mangle_with_block_scope){to_mangle.push(node.definition());return}});this.walk(tw);to_mangle.forEach(function(def){if(def.destructuring&&!def.destructuring.is_array)return;def.mangle(options)});if(options.cache){options.cache.cname=this.cname}});AST_Toplevel.DEFMETHOD("compute_char_frequency",function(options){options=this._default_mangler_options(options);var tw=new TreeWalker(function(node){if(node instanceof AST_Constant)base54.consider(node.print_to_string());else if(node instanceof AST_Return)base54.consider("return");else if(node instanceof AST_Throw)base54.consider("throw");else if(node instanceof AST_Continue)base54.consider("continue");else if(node instanceof AST_Break)base54.consider("break");else if(node instanceof AST_Debugger)base54.consider("debugger");else if(node instanceof AST_Directive)base54.consider(node.value);else if(node instanceof AST_While)base54.consider("while");else if(node instanceof AST_Do)base54.consider("do while");else if(node instanceof AST_If){base54.consider("if");if(node.alternative)base54.consider("else")}else if(node instanceof AST_Var)base54.consider("var");else if(node instanceof AST_Const)base54.consider("const");else if(node instanceof AST_Lambda)base54.consider("function");else if(node instanceof AST_For)base54.consider("for");else if(node instanceof AST_ForIn)base54.consider("for in");else if(node instanceof AST_Switch)base54.consider("switch");else if(node instanceof AST_Case)base54.consider("case");else if(node instanceof AST_Default)base54.consider("default");else if(node instanceof AST_With)base54.consider("with");else if(node instanceof AST_ObjectSetter)base54.consider("set"+(typeof node.key==="string"?node.key:""));else if(node instanceof AST_ObjectGetter)base54.consider("get"+(typeof node.key==="string"?node.key:""));else if(node instanceof AST_ObjectKeyVal&&typeof node.key==="string")base54.consider(node.key);else if(node instanceof AST_ConciseMethod&&typeof node.key==="string")base54.consider(node.key);else if(node instanceof AST_New)base54.consider("new");else if(node instanceof AST_This)base54.consider("this");else if(node instanceof AST_Super)base54.consider("super");else if(node instanceof AST_Try)base54.consider("try");else if(node instanceof AST_Catch)base54.consider("catch");else if(node instanceof AST_Finally)base54.consider("finally");else if(node instanceof AST_Yield)base54.consider("yield");else if(node instanceof AST_Symbol&&node.unmangleable(options))base54.consider(node.name);else if(node instanceof AST_Unary||node instanceof AST_Binary)base54.consider(node.operator);else if(node instanceof AST_Dot)base54.consider(node.property)});this.walk(tw);base54.sort()});var base54=function(){var string="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_0123456789";var chars,frequency;function reset(){frequency=Object.create(null);chars=string.split("").map(function(ch){return ch.charCodeAt(0)});chars.forEach(function(ch){frequency[ch]=0})}base54.consider=function(str){for(var i=str.length;--i>=0;){var code=str.charCodeAt(i);if(code in frequency)++frequency[code]}};base54.sort=function(){chars=mergeSort(chars,function(a,b){if(is_digit(a)&&!is_digit(b))return 1;if(is_digit(b)&&!is_digit(a))return-1;return frequency[b]-frequency[a]})};base54.reset=reset;reset();base54.get=function(){return chars};base54.freq=function(){return frequency};function base54(num){var ret="",base=54;num++;do{num--;ret+=String.fromCharCode(chars[num%base]);num=Math.floor(num/base);base=64}while(num>0);return ret}return base54}();AST_Toplevel.DEFMETHOD("scope_warnings",function(options){options=defaults(options,{undeclared:false,unreferenced:true,assign_to_global:true,func_arguments:true,nested_defuns:true,eval:true});var tw=new TreeWalker(function(node){if(options.undeclared&&node instanceof AST_SymbolRef&&node.undeclared()){AST_Node.warn("Undeclared symbol: {name} [{file}:{line},{col}]",{name:node.name,file:node.start.file,line:node.start.line,col:node.start.col})}if(options.assign_to_global){var sym=null;if(node instanceof AST_Assign&&node.left instanceof AST_SymbolRef)sym=node.left;else if(node instanceof AST_ForIn&&node.init instanceof AST_SymbolRef)sym=node.init;if(sym&&(sym.undeclared()||sym.global()&&sym.scope!==sym.definition().scope)){AST_Node.warn("{msg}: {name} [{file}:{line},{col}]",{msg:sym.undeclared()?"Accidental global?":"Assignment to global",name:sym.name,file:sym.start.file,line:sym.start.line,col:sym.start.col})}}if(options.eval&&node instanceof AST_SymbolRef&&node.undeclared()&&node.name=="eval"){AST_Node.warn("Eval is used [{file}:{line},{col}]",node.start)}if(options.unreferenced&&(node instanceof AST_SymbolDeclaration||node instanceof AST_Label)&&!(node instanceof AST_SymbolCatch)&&node.unreferenced()){AST_Node.warn("{type} {name} is declared but not referenced [{file}:{line},{col}]",{type:node instanceof AST_Label?"Label":"Symbol",name:node.name,file:node.start.file,line:node.start.line,col:node.start.col})}if(options.func_arguments&&node instanceof AST_Lambda&&node.uses_arguments){AST_Node.warn("arguments used in function {name} [{file}:{line},{col}]",{name:node.name?node.name.name:"anonymous",file:node.start.file,line:node.start.line,col:node.start.col})}if(options.nested_defuns&&node instanceof AST_Defun&&!(tw.parent()instanceof AST_Scope)){AST_Node.warn('Function {name} declared in nested statement "{type}" [{file}:{line},{col}]',{name:node.name.name,type:tw.parent().TYPE,file:node.start.file,line:node.start.line,col:node.start.col})}});this.walk(tw)});/***********************************************************************
+"use strict";function SymbolDef(scope,index,orig){this.name=orig.name;this.orig=[orig];this.scope=scope;this.references=[];this.global=false;this.mangled_name=null;this.undeclared=false;this.index=index;this.id=SymbolDef.next_id++}SymbolDef.next_id=1;SymbolDef.prototype={unmangleable:function(options){if(!options)options={};return this.global&&!options.toplevel||this.undeclared||!options.eval&&(this.scope.uses_eval||this.scope.uses_with)||options.keep_fnames&&(this.orig[0]instanceof AST_SymbolLambda||this.orig[0]instanceof AST_SymbolDefun)},mangle:function(options){var cache=options.cache&&options.cache.props;if(this.global&&cache&&cache.has(this.name)){this.mangled_name=cache.get(this.name)}else if(!this.mangled_name&&!this.unmangleable(options)){var s=this.scope;if(!options.screw_ie8&&this.orig[0]instanceof AST_SymbolLambda)s=s.parent_scope;this.mangled_name=s.next_mangled(options,this);if(this.global&&cache){cache.set(this.name,this.mangled_name)}}}};AST_Toplevel.DEFMETHOD("figure_out_scope",function(options){options=defaults(options,{screw_ie8:true,cache:null});var self=this;var scope=self.parent_scope=null;var labels=new Dictionary;var defun=null;var tw=new TreeWalker(function(node,descend){if(options.screw_ie8&&node instanceof AST_Catch){var save_scope=scope;scope=new AST_Scope(node);scope.init_scope_vars();scope.parent_scope=save_scope;descend();scope=save_scope;return true}if(node instanceof AST_Scope){node.init_scope_vars();var save_scope=node.parent_scope=scope;var save_defun=defun;var save_labels=labels;defun=scope=node;labels=new Dictionary;descend();scope=save_scope;defun=save_defun;labels=save_labels;return true}if(node instanceof AST_LabeledStatement){var l=node.label;if(labels.has(l.name)){throw new Error(string_template("Label {name} defined twice",l))}labels.set(l.name,l);descend();labels.del(l.name);return true}if(node instanceof AST_With){for(var s=scope;s;s=s.parent_scope)s.uses_with=true;return}if(node instanceof AST_Symbol){node.scope=scope}if(node instanceof AST_Label){node.thedef=node;node.references=[]}if(node instanceof AST_SymbolLambda){defun.def_function(node)}else if(node instanceof AST_SymbolDefun){(node.scope=defun.parent_scope).def_function(node)}else if(node instanceof AST_SymbolVar||node instanceof AST_SymbolConst){var def=defun.def_variable(node);def.init=tw.parent().value}else if(node instanceof AST_SymbolCatch){(options.screw_ie8?scope:defun).def_variable(node)}else if(node instanceof AST_LabelRef){var sym=labels.get(node.name);if(!sym)throw new Error(string_template("Undefined label {name} [{line},{col}]",{name:node.name,line:node.start.line,col:node.start.col}));node.thedef=sym}});self.walk(tw);var func=null;var globals=self.globals=new Dictionary;var tw=new TreeWalker(function(node,descend){if(node instanceof AST_Lambda){var prev_func=func;func=node;descend();func=prev_func;return true}if(node instanceof AST_LoopControl&&node.label){node.label.thedef.references.push(node);return true}if(node instanceof AST_SymbolRef){var name=node.name;if(name=="eval"&&tw.parent()instanceof AST_Call){for(var s=node.scope;s&&!s.uses_eval;s=s.parent_scope){s.uses_eval=true}}var sym=node.scope.find_variable(name);if(node.scope instanceof AST_Lambda&&name=="arguments"){node.scope.uses_arguments=true}if(!sym){sym=self.def_global(node)}node.thedef=sym;node.reference(options);return true}});self.walk(tw);if(options.cache){this.cname=options.cache.cname}});AST_Toplevel.DEFMETHOD("def_global",function(node){var globals=this.globals,name=node.name;if(globals.has(name)){return globals.get(name)}else{var g=new SymbolDef(this,globals.size(),node);g.undeclared=true;g.global=true;globals.set(name,g);return g}});AST_Scope.DEFMETHOD("init_scope_vars",function(){this.variables=new Dictionary;this.functions=new Dictionary;this.uses_with=false;this.uses_eval=false;this.parent_scope=null;this.enclosed=[];this.cname=-1});AST_Lambda.DEFMETHOD("init_scope_vars",function(){AST_Scope.prototype.init_scope_vars.apply(this,arguments);this.uses_arguments=false;var symbol=new AST_VarDef({name:"arguments",start:this.start,end:this.end});var def=new SymbolDef(this,this.variables.size(),symbol);this.variables.set(symbol.name,def)});AST_SymbolRef.DEFMETHOD("reference",function(options){var def=this.definition();def.references.push(this);var s=this.scope;while(s){push_uniq(s.enclosed,def);if(options.keep_fnames){s.functions.each(function(d){push_uniq(def.scope.enclosed,d)})}if(s===def.scope)break;s=s.parent_scope}});AST_Scope.DEFMETHOD("find_variable",function(name){if(name instanceof AST_Symbol)name=name.name;return this.variables.get(name)||this.parent_scope&&this.parent_scope.find_variable(name)});AST_Scope.DEFMETHOD("def_function",function(symbol){this.functions.set(symbol.name,this.def_variable(symbol))});AST_Scope.DEFMETHOD("def_variable",function(symbol){var def;if(!this.variables.has(symbol.name)){def=new SymbolDef(this,this.variables.size(),symbol);this.variables.set(symbol.name,def);def.global=!this.parent_scope}else{def=this.variables.get(symbol.name);def.orig.push(symbol)}return symbol.thedef=def});AST_Scope.DEFMETHOD("next_mangled",function(options){var ext=this.enclosed;out:while(true){var m=base54(++this.cname);if(!is_identifier(m))continue;if(options.except.indexOf(m)>=0)continue;for(var i=ext.length;--i>=0;){var sym=ext[i];var name=sym.mangled_name||sym.unmangleable(options)&&sym.name;if(m==name)continue out}return m}});AST_Function.DEFMETHOD("next_mangled",function(options,def){var tricky_def=def.orig[0]instanceof AST_SymbolFunarg&&this.name&&this.name.definition();var tricky_name=tricky_def?tricky_def.mangled_name||tricky_def.name:null;while(true){var name=AST_Lambda.prototype.next_mangled.call(this,options,def);if(!tricky_name||tricky_name!=name)return name}});AST_Symbol.DEFMETHOD("unmangleable",function(options){return this.definition().unmangleable(options)});AST_SymbolAccessor.DEFMETHOD("unmangleable",function(){return true});AST_Label.DEFMETHOD("unmangleable",function(){return false});AST_Symbol.DEFMETHOD("unreferenced",function(){return this.definition().references.length==0&&!(this.scope.uses_eval||this.scope.uses_with)});AST_Symbol.DEFMETHOD("undeclared",function(){return this.definition().undeclared});AST_LabelRef.DEFMETHOD("undeclared",function(){return false});AST_Label.DEFMETHOD("undeclared",function(){return false});AST_Symbol.DEFMETHOD("definition",function(){return this.thedef});AST_Symbol.DEFMETHOD("global",function(){return this.definition().global});AST_Toplevel.DEFMETHOD("_default_mangler_options",function(options){return defaults(options,{except:[],eval:false,sort:false,toplevel:false,screw_ie8:true,keep_fnames:false})});AST_Toplevel.DEFMETHOD("mangle_names",function(options){options=this._default_mangler_options(options);options.except.push("arguments");var lname=-1;var to_mangle=[];if(options.cache){this.globals.each(function(symbol){if(options.except.indexOf(symbol.name)<0){to_mangle.push(symbol)}})}var tw=new TreeWalker(function(node,descend){if(node instanceof AST_LabeledStatement){var save_nesting=lname;descend();lname=save_nesting;return true}if(node instanceof AST_Scope){var p=tw.parent(),a=[];node.variables.each(function(symbol){if(options.except.indexOf(symbol.name)<0){a.push(symbol)}});to_mangle.push.apply(to_mangle,a);return}if(node instanceof AST_Label){var name;do name=base54(++lname);while(!is_identifier(name));node.mangled_name=name;return true}if(options.screw_ie8&&node instanceof AST_SymbolCatch){to_mangle.push(node.definition());return}});this.walk(tw);to_mangle.forEach(function(def){def.mangle(options)});if(options.cache){options.cache.cname=this.cname}});AST_Toplevel.DEFMETHOD("compute_char_frequency",function(options){options=this._default_mangler_options(options);var tw=new TreeWalker(function(node){if(node instanceof AST_Constant)base54.consider(node.print_to_string());else if(node instanceof AST_Return)base54.consider("return");else if(node instanceof AST_Throw)base54.consider("throw");else if(node instanceof AST_Continue)base54.consider("continue");else if(node instanceof AST_Break)base54.consider("break");else if(node instanceof AST_Debugger)base54.consider("debugger");else if(node instanceof AST_Directive)base54.consider(node.value);else if(node instanceof AST_While)base54.consider("while");else if(node instanceof AST_Do)base54.consider("do while");else if(node instanceof AST_If){base54.consider("if");if(node.alternative)base54.consider("else")}else if(node instanceof AST_Var)base54.consider("var");else if(node instanceof AST_Const)base54.consider("const");else if(node instanceof AST_Lambda)base54.consider("function");else if(node instanceof AST_For)base54.consider("for");else if(node instanceof AST_ForIn)base54.consider("for in");else if(node instanceof AST_Switch)base54.consider("switch");else if(node instanceof AST_Case)base54.consider("case");else if(node instanceof AST_Default)base54.consider("default");else if(node instanceof AST_With)base54.consider("with");else if(node instanceof AST_ObjectSetter)base54.consider("set"+node.key);else if(node instanceof AST_ObjectGetter)base54.consider("get"+node.key);else if(node instanceof AST_ObjectKeyVal)base54.consider(node.key);else if(node instanceof AST_New)base54.consider("new");else if(node instanceof AST_This)base54.consider("this");else if(node instanceof AST_Try)base54.consider("try");else if(node instanceof AST_Catch)base54.consider("catch");else if(node instanceof AST_Finally)base54.consider("finally");else if(node instanceof AST_Symbol&&node.unmangleable(options))base54.consider(node.name);else if(node instanceof AST_Unary||node instanceof AST_Binary)base54.consider(node.operator);else if(node instanceof AST_Dot)base54.consider(node.property)});this.walk(tw);base54.sort()});var base54=function(){var string="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_0123456789";var chars,frequency;function reset(){frequency=Object.create(null);chars=string.split("").map(function(ch){return ch.charCodeAt(0)});chars.forEach(function(ch){frequency[ch]=0})}base54.consider=function(str){for(var i=str.length;--i>=0;){var code=str.charCodeAt(i);if(code in frequency)++frequency[code]}};base54.sort=function(){chars=mergeSort(chars,function(a,b){if(is_digit(a)&&!is_digit(b))return 1;if(is_digit(b)&&!is_digit(a))return-1;return frequency[b]-frequency[a]})};base54.reset=reset;reset();base54.get=function(){return chars};base54.freq=function(){return frequency};function base54(num){var ret="",base=54;num++;do{num--;ret+=String.fromCharCode(chars[num%base]);num=Math.floor(num/base);base=64}while(num>0);return ret}return base54}();AST_Toplevel.DEFMETHOD("scope_warnings",function(options){options=defaults(options,{undeclared:false,unreferenced:true,assign_to_global:true,func_arguments:true,nested_defuns:true,eval:true});var tw=new TreeWalker(function(node){if(options.undeclared&&node instanceof AST_SymbolRef&&node.undeclared()){AST_Node.warn("Undeclared symbol: {name} [{file}:{line},{col}]",{name:node.name,file:node.start.file,line:node.start.line,col:node.start.col})}if(options.assign_to_global){var sym=null;if(node instanceof AST_Assign&&node.left instanceof AST_SymbolRef)sym=node.left;else if(node instanceof AST_ForIn&&node.init instanceof AST_SymbolRef)sym=node.init;if(sym&&(sym.undeclared()||sym.global()&&sym.scope!==sym.definition().scope)){AST_Node.warn("{msg}: {name} [{file}:{line},{col}]",{msg:sym.undeclared()?"Accidental global?":"Assignment to global",name:sym.name,file:sym.start.file,line:sym.start.line,col:sym.start.col})}}if(options.eval&&node instanceof AST_SymbolRef&&node.undeclared()&&node.name=="eval"){AST_Node.warn("Eval is used [{file}:{line},{col}]",node.start)}if(options.unreferenced&&(node instanceof AST_SymbolDeclaration||node instanceof AST_Label)&&!(node instanceof AST_SymbolCatch)&&node.unreferenced()){AST_Node.warn("{type} {name} is declared but not referenced [{file}:{line},{col}]",{type:node instanceof AST_Label?"Label":"Symbol",name:node.name,file:node.start.file,line:node.start.line,col:node.start.col})}if(options.func_arguments&&node instanceof AST_Lambda&&node.uses_arguments){AST_Node.warn("arguments used in function {name} [{file}:{line},{col}]",{name:node.name?node.name.name:"anonymous",file:node.start.file,line:node.start.line,col:node.start.col})}if(options.nested_defuns&&node instanceof AST_Defun&&!(tw.parent()instanceof AST_Scope)){AST_Node.warn('Function {name} declared in nested statement "{type}" [{file}:{line},{col}]',{name:node.name.name,type:tw.parent().TYPE,file:node.start.file,line:node.start.line,col:node.start.col})}});this.walk(tw)});/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor.
https://github.com/mishoo/UglifyJS2
-------------------------------- (C) ---------------------------------
@@ -251,12 +250,11 @@
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
***********************************************************************/
-"use strict";var EXPECT_DIRECTIVE=/^$|[;{][\s\n]*$/;function is_some_comments(comment){var text=comment.value;var type=comment.type;if(type=="comment2"){return/@preserve|@license|@cc_on/i.test(text)}return type=="comment5"}function is_comment5(comment){return comment.type=="comment5"}function OutputStream(options){options=defaults(options,{indent_start:0,indent_level:4,quote_keys:false,space_colon:true,ascii_only:false,ascii_identifiers:undefined,unescape_regexps:false,inline_script:false,width:80,max_line_len:false,beautify:false,source_map:null,bracketize:false,semicolons:true,comments:false,shebang:true,preserve_line:false,screw_ie8:true,preamble:null,quote_style:0,keep_quoted_props:false,shorthand:undefined,ecma:5,wrap_iife:false},true);if(typeof options.ascii_identifiers==="undefined")options.ascii_identifiers=options.ascii_only;if(options.shorthand===undefined)options.shorthand=options.ecma>5;var comment_filter=options.shebang?is_comment5:return_false;if(options.comments){var comments=options.comments;if(typeof options.comments==="string"&&/^\/.*\/[a-zA-Z]*$/.test(options.comments)){var regex_pos=options.comments.lastIndexOf("/");comments=new RegExp(options.comments.substr(1,regex_pos-1),options.comments.substr(regex_pos+1))}if(comments instanceof RegExp){comment_filter=function(comment){return comment.type=="comment5"||comments.test(comment.value)}}else if(typeof comments==="function"){comment_filter=function(comment){return comment.type=="comment5"||comments(this,comment)}}else if(comments==="some"){comment_filter=is_some_comments}else{comment_filter=return_true}}var indentation=0;var current_col=0;var current_line=1;var current_pos=0;var OUTPUT="";function to_ascii(str,identifier){return str.replace(/[\ud800-\udbff][\udc00-\udfff]|[\u0000-\u001f\u007f-\uffff]/g,function(ch){var code=get_full_char_code(ch,0).toString(16);if(identifier&&code.length===1&&options.ecma>=6||code.length>4){if(options.ecma<6){if(identifier){return ch}return"\\u"+ch.charCodeAt(0).toString(16)+"\\u"+ch.charCodeAt(1).toString(16)}return"\\u{"+code+"}"}else if(code.length<=2&&!identifier){while(code.length<2)code="0"+code;return"\\x"+code}else{while(code.length<4)code="0"+code;return"\\u"+code}})}function make_string(str,quote){var dq=0,sq=0;str=str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g,function(s,i){switch(s){case'"':++dq;return'"';case"'":++sq;return"'";case"\\":return"\\\\";case"\n":return"\\n";case"\r":return"\\r";case"\t":return"\\t";case"\b":return"\\b";case"\f":return"\\f";case"\v":return options.screw_ie8?"\\v":"\\x0B";case"\u2028":return"\\u2028";case"\u2029":return"\\u2029";case"\ufeff":return"\\ufeff";case"\0":return/[0-7]/.test(get_full_char(str,i+1))?"\\x00":"\\0"}return s});function quote_single(){return"'"+str.replace(/\x27/g,"\\'")+"'"}function quote_double(){return'"'+str.replace(/\x22/g,'\\"')+'"'}function quote_template(){if(!options.ascii_only){str=str.replace(/\\(n|r|u2028|u2029)/g,function(s,c){switch(c){case"n":return"\n";case"r":return"\r";case"u2028":return"\u2028";case"u2029":return"\u2029"}return s})}return"`"+str.replace(/`/g,"\\`")+"`"}if(options.ascii_only)str=to_ascii(str);if(quote==="`")return quote_template();switch(options.quote_style){case 1:return quote_single();case 2:return quote_double();case 3:return quote=="'"?quote_single():quote_double();default:return dq>sq?quote_single():quote_double()}}function encode_string(str,quote){var ret=make_string(str,quote);if(options.inline_script){ret=ret.replace(/<\x2fscript([>\/\t\n\f\r ])/gi,"<\\/script$1");ret=ret.replace(/\x3c!--/g,"\\x3c!--");ret=ret.replace(/--\x3e/g,"--\\x3e")}return ret}function make_name(name){name=name.toString();if(options.ascii_identifiers)name=to_ascii(name,true);return name}function make_indent(back){return repeat_string(" ",options.indent_start+indentation-back*options.indent_level)}var might_need_space=false;var might_need_semicolon=false;var might_add_newline=0;var last=null;function last_char(){var char=last.charAt(last.length-1);if(is_surrogate_pair_tail(char)){return last.charAt(last.length-2)+char}return char}var ensure_line_len=options.max_line_len?function(){if(current_col>options.max_line_len){if(might_add_newline){var left=OUTPUT.slice(0,might_add_newline);var right=OUTPUT.slice(might_add_newline);OUTPUT=left+"\n"+right;current_line++;current_pos++;current_col=right.length}if(current_col>options.max_line_len){AST_Node.warn("Output exceeds {max_line_len} characters",options)}}might_add_newline=0}:noop;var requireSemicolonChars=makePredicate("( [ + * / - , .");function print(str){str=String(str);var ch=get_full_char(str,0);if(might_need_semicolon){might_need_semicolon=false;if((!ch||";}".indexOf(ch)<0)&&!/[;]$/.test(last)){if(options.semicolons||requireSemicolonChars(ch)){OUTPUT+=";";current_col++;current_pos++}else{ensure_line_len();OUTPUT+="\n";current_pos++;current_line++;current_col=0;if(/^\s+$/.test(str)){might_need_semicolon=true}}if(!options.beautify)might_need_space=false}}if(!options.beautify&&options.preserve_line&&stack[stack.length-1]){var target_line=stack[stack.length-1].start.line;while(current_line<target_line){ensure_line_len();OUTPUT+="\n";current_pos++;current_line++;current_col=0;might_need_space=false}}if(might_need_space){var prev=last_char();if(is_identifier_char(prev)&&(is_identifier_char(ch)||ch=="\\")||ch=="/"&&ch==prev||(ch=="+"||ch=="-")&&ch==last){OUTPUT+=" ";current_col++;current_pos++}might_need_space=false}OUTPUT+=str;current_pos+=str.length;var a=str.split(/\r?\n/),n=a.length-1;current_line+=n;current_col+=a[0].length;if(n>0){ensure_line_len();current_col=a[n].length}last=str}var star=function(){print("*")};var space=options.beautify?function(){print(" ")}:function(){might_need_space=true};var indent=options.beautify?function(half){if(options.beautify){print(make_indent(half?.5:0))}}:noop;var with_indent=options.beautify?function(col,cont){if(col===true)col=next_indent();var save_indentation=indentation;indentation=col;var ret=cont();indentation=save_indentation;return ret}:function(col,cont){return cont()};var newline=options.beautify?function(){print("\n")}:options.max_line_len?function(){ensure_line_len();might_add_newline=OUTPUT.length}:noop;var semicolon=options.beautify?function(){print(";")}:function(){might_need_semicolon=true};function force_semicolon(){might_need_semicolon=false;print(";")}function next_indent(){return indentation+options.indent_level}function with_block(cont){var ret;print("{");newline();with_indent(next_indent(),function(){ret=cont()});indent();print("}");return ret}function with_parens(cont){print("(");var ret=cont();print(")");return ret}function with_square(cont){print("[");var ret=cont();print("]");return ret}function comma(){print(",");space()}function colon(){print(":");if(options.space_colon)space()}var add_mapping=options.source_map?function(token,name){try{if(token)options.source_map.add(token.file||"?",current_line,current_col,token.line,token.col,!name&&token.type=="name"?token.value:name)}catch(ex){AST_Node.warn("Couldn't figure out mapping for {file}:{line},{col} → {cline},{ccol} [{name}]",{file:token.file,line:token.line,col:token.col,cline:current_line,ccol:current_col,name:name||""})}}:noop;function get(){if(might_add_newline){ensure_line_len()}return OUTPUT}if(options.preamble){print(options.preamble.replace(/\r\n?|[\n\u2028\u2029]|\s*$/g,"\n"))}var stack=[];return{get:get,toString:get,indent:indent,indentation:function(){return indentation},current_width:function(){return current_col-indentation},should_break:function(){return options.width&&this.current_width()>=options.width},newline:newline,print:print,star:star,space:space,comma:comma,colon:colon,last:function(){return last},semicolon:semicolon,force_semicolon:force_semicolon,to_ascii:to_ascii,print_name:function(name){print(make_name(name))},print_string:function(str,quote,escape_directive){var encoded=encode_string(str,quote);if(escape_directive===true&&encoded.indexOf("\\")===-1){if(!EXPECT_DIRECTIVE.test(OUTPUT)){force_semicolon()}force_semicolon()}print(encoded)},print_template_string_chars:function(str){var encoded=encode_string(str,"`").replace(/\${/g,"\\${");return print(encoded.substr(1,encoded.length-2))},encode_string:encode_string,next_indent:next_indent,with_indent:with_indent,with_block:with_block,with_parens:with_parens,with_square:with_square,add_mapping:add_mapping,option:function(opt){return options[opt]},comment_filter:comment_filter,line:function(){return current_line},col:function(){return current_col},pos:function(){return current_pos},push_node:function(node){stack.push(node)},pop_node:function(){return stack.pop()},parent:function(n){return stack[stack.length-2-(n||0)]}}}(function(){function DEFPRINT(nodetype,generator){nodetype.DEFMETHOD("_codegen",generator)}var use_asm=false;var in_directive=false;AST_Node.DEFMETHOD("print",function(stream,force_parens){var self=this,generator=self._codegen,prev_use_asm=use_asm;if(self instanceof AST_Directive&&self.value=="use asm"&&stream.parent()instanceof AST_Scope){use_asm=true}function doit(){self.add_comments(stream);self.add_source_map(stream);generator(self,stream)}stream.push_node(self);if(force_parens||self.needs_parens(stream)){stream.with_parens(doit)}else{doit()}stream.pop_node();if(self instanceof AST_Scope){use_asm=prev_use_asm}});AST_Node.DEFMETHOD("print_to_string",function(options){var s=OutputStream(options);if(!options)s._readonly=true;this.print(s);return s.get()});AST_Node.DEFMETHOD("add_comments",function(output){if(output._readonly)return;var self=this;var start=self.start;if(start&&!start._comments_dumped){start._comments_dumped=true;var comments=start.comments_before||[];if(self instanceof AST_Exit&&self.value){self.value.walk(new TreeWalker(function(node){if(node.start&&node.start.comments_before){comments=comments.concat(node.start.comments_before);node.start.comments_before=[]}if(node instanceof AST_Function||node instanceof AST_Array||node instanceof AST_Object){return true}}))}comments=comments.filter(output.comment_filter,self);if(!output.option("beautify")&&comments.length>0&&/comment[134]/.test(comments[0].type)&&output.col()!==0&&comments[0].nlb){output.print("\n")}comments.forEach(function(c){if(/comment[134]/.test(c.type)){output.print("//"+c.value+"\n");output.indent()}else if(c.type=="comment2"){output.print("/*"+c.value+"*/");if(start.nlb){output.print("\n");output.indent()}else{output.space()}}else if(output.pos()===0&&c.type=="comment5"&&output.option("shebang")){output.print("#!"+c.value+"\n");output.indent()}})}});function PARENS(nodetype,func){if(Array.isArray(nodetype)){nodetype.forEach(function(nodetype){PARENS(nodetype,func)})}else{nodetype.DEFMETHOD("needs_parens",func)}}PARENS(AST_Node,function(){return false});PARENS(AST_Function,function(output){if(first_in_statement(output)){return true}if(output.option("wrap_iife")){var p=output.parent();return p instanceof AST_Call&&p.expression===this}return false});PARENS(AST_Arrow,function(output){var p=output.parent();return p instanceof AST_PropAccess&&p.expression===this});PARENS(AST_Object,function(output){return first_in_statement(output)});PARENS([AST_Unary,AST_Undefined],function(output){var p=output.parent();return p instanceof AST_PropAccess&&p.expression===this||p instanceof AST_Call&&p.expression===this||p instanceof AST_Binary&&p.operator==="**"&&this instanceof AST_UnaryPrefix&&p.left===this&&this.operator!=="++"&&this.operator!=="--"});PARENS(AST_Seq,function(output){var p=output.parent();return p instanceof AST_Call||p instanceof AST_Unary||p instanceof AST_Binary||p instanceof AST_VarDef||p instanceof AST_PropAccess||p instanceof AST_Array||p instanceof AST_ObjectProperty||p instanceof AST_Conditional||p instanceof AST_Arrow||p instanceof AST_DefaultAssign});PARENS(AST_Binary,function(output){var p=output.parent();if(p instanceof AST_Call&&p.expression===this)return true;if(p instanceof AST_Unary)return true;if(p instanceof AST_PropAccess&&p.expression===this)return true;if(p instanceof AST_Binary){var po=p.operator,pp=PRECEDENCE[po];var so=this.operator,sp=PRECEDENCE[so];if(pp>sp||pp==sp&&this===p.right){return true}}});PARENS(AST_Yield,function(output){var p=output.parent();if(p instanceof AST_Binary&&p.operator!=="=")return true;if(p instanceof AST_Conditional&&p.condition===this)return true;if(p instanceof AST_Unary)return true;if(p instanceof AST_PropAccess&&p.expression===this)return true});PARENS(AST_PropAccess,function(output){var p=output.parent();if(p instanceof AST_New&&p.expression===this){try{this.walk(new TreeWalker(function(node){if(node instanceof AST_Call)throw p}))}catch(ex){if(ex!==p)throw ex;return true}}});PARENS(AST_Call,function(output){var p=output.parent(),p1;if(p instanceof AST_New&&p.expression===this)return true;return this.expression instanceof AST_Function&&p instanceof AST_PropAccess&&p.expression===this&&(p1=output.parent(1))instanceof AST_Assign&&p1.left===p});PARENS(AST_New,function(output){var p=output.parent();if(!need_constructor_parens(this,output)&&(p instanceof AST_PropAccess||p instanceof AST_Call&&p.expression===this))return true});PARENS(AST_Number,function(output){var p=output.parent();if(p instanceof AST_PropAccess&&p.expression===this){var value=this.getValue();if(value<0||/^0/.test(make_num(value))){return true}}});PARENS([AST_Assign,AST_Conditional],function(output){var p=output.parent();if(p instanceof AST_Unary)return true;if(p instanceof AST_Binary&&!(p instanceof AST_Assign))return true;if(p instanceof AST_Call&&p.expression===this)return true;if(p instanceof AST_Conditional&&p.condition===this)return true;if(p instanceof AST_PropAccess&&p.expression===this)return true;if(this instanceof AST_Assign&&this.left instanceof AST_Destructuring&&this.left.is_array===false)return true});DEFPRINT(AST_Directive,function(self,output){output.print_string(self.value,self.quote);output.semicolon()});DEFPRINT(AST_Expansion,function(self,output){output.print("...");self.expression.print(output)});DEFPRINT(AST_Destructuring,function(self,output){output.print(self.is_array?"[":"{");var first=true;var len=self.names.length;self.names.forEach(function(name,i){if(first)first=false;else{output.comma();output.space()}name.print(output);if(i===len-1&&name instanceof AST_Hole)output.comma()});output.print(self.is_array?"]":"}")});DEFPRINT(AST_Debugger,function(self,output){output.print("debugger");output.semicolon()});function display_body(body,is_toplevel,output,allow_directives){var last=body.length-1;in_directive=allow_directives;body.forEach(function(stmt,i){if(in_directive===true&&!(stmt instanceof AST_Directive||stmt instanceof AST_EmptyStatement||stmt instanceof AST_SimpleStatement&&stmt.body instanceof AST_String)){in_directive=false}if(!(stmt instanceof AST_EmptyStatement)){output.indent();stmt.print(output);if(!(i==last&&is_toplevel)){output.newline();if(is_toplevel)output.newline()}}if(in_directive===true&&stmt instanceof AST_SimpleStatement&&stmt.body instanceof AST_String){in_directive=false}});in_directive=false}AST_StatementWithBody.DEFMETHOD("_do_print_body",function(output){force_statement(this.body,output)});DEFPRINT(AST_Statement,function(self,output){self.body.print(output);output.semicolon()});DEFPRINT(AST_Toplevel,function(self,output){display_body(self.body,true,output,true);output.print("")});DEFPRINT(AST_LabeledStatement,function(self,output){self.label.print(output);output.colon();self.body.print(output)});DEFPRINT(AST_SimpleStatement,function(self,output){self.body.print(output);output.semicolon()});function print_bracketed(body,output,allow_directives){if(body.length>0)output.with_block(function(){display_body(body,false,output,allow_directives)});else output.print("{}")}DEFPRINT(AST_BlockStatement,function(self,output){print_bracketed(self.body,output)});DEFPRINT(AST_EmptyStatement,function(self,output){output.semicolon()});DEFPRINT(AST_Do,function(self,output){output.print("do");output.space();self._do_print_body(output);output.space();output.print("while");output.space();output.with_parens(function(){self.condition.print(output)});output.semicolon()});DEFPRINT(AST_While,function(self,output){output.print("while");output.space();output.with_parens(function(){self.condition.print(output)});output.space();self._do_print_body(output)});DEFPRINT(AST_For,function(self,output){output.print("for");output.space();output.with_parens(function(){if(self.init&&!(self.init instanceof AST_EmptyStatement)){if(self.init instanceof AST_Definitions){self.init.print(output)}else{parenthesize_for_noin(self.init,output,true)}output.print(";");output.space()}else{output.print(";")}if(self.condition){self.condition.print(output);output.print(";");output.space()}else{output.print(";")}if(self.step){self.step.print(output)}});output.space();self._do_print_body(output)});DEFPRINT(AST_ForIn,function(self,output){output.print("for");output.space();output.with_parens(function(){self.init.print(output);output.space();if(self instanceof AST_ForOf){output.print("of")}else{output.print("in")}output.space();self.object.print(output)});output.space();self._do_print_body(output)});DEFPRINT(AST_With,function(self,output){output.print("with");output.space();output.with_parens(function(){self.expression.print(output)});output.space();self._do_print_body(output)});AST_Lambda.DEFMETHOD("_do_print",function(output,nokeyword){var self=this;if(!nokeyword){output.print("function");if(this.is_generator){output.star()}if(self.name){output.space()}}if(self.name instanceof AST_Symbol){self.name.print(output)}else if(nokeyword&&self.name instanceof AST_Node){output.with_square(function(){self.name.print(output)})}output.with_parens(function(){self.argnames.forEach(function(arg,i){if(i)output.comma();arg.print(output)})});output.space();print_bracketed(self.body,output,true)});DEFPRINT(AST_Lambda,function(self,output){self._do_print(output)});DEFPRINT(AST_PrefixedTemplateString,function(self,output){self.prefix.print(output);self.template_string.print(output)});DEFPRINT(AST_TemplateString,function(self,output){var is_tagged=output.parent()instanceof AST_PrefixedTemplateString;output.print("`");for(var i=0;i<self.segments.length;i++){if(!(self.segments[i]instanceof AST_TemplateSegment)){output.print("${");self.segments[i].print(output);output.print("}")}else if(is_tagged){output.print(self.segments[i].raw)}else{output.print_template_string_chars(self.segments[i].value)}}output.print("`")});AST_Arrow.DEFMETHOD("_do_print",function(output){var self=this;var parent=output.parent();var needs_parens=parent instanceof AST_Binary||parent instanceof AST_Unary||parent instanceof AST_Call&&self===parent.expression;if(needs_parens){output.print("(")}if(self.argnames.length===1&&self.argnames[0]instanceof AST_Symbol){self.argnames[0].print(output)}else{output.with_parens(function(){self.argnames.forEach(function(arg,i){if(i)output.comma();arg.print(output)})})}output.space();output.print("=>");output.space();if(self.body instanceof AST_Node){this.body.print(output)}else{print_bracketed(this.body,output)}if(needs_parens){output.print(")")}});AST_Exit.DEFMETHOD("_do_print",function(output,kind){output.print(kind);if(this.value){output.space();this.value.print(output)}output.semicolon()});DEFPRINT(AST_Return,function(self,output){self._do_print(output,"return")});DEFPRINT(AST_Throw,function(self,output){self._do_print(output,"throw")});DEFPRINT(AST_Yield,function(self,output){var star=self.is_star?"*":"";output.print("yield"+star);if(self.expression){output.space();self.expression.print(output)}});AST_LoopControl.DEFMETHOD("_do_print",function(output,kind){output.print(kind);if(this.label){output.space();this.label.print(output)}output.semicolon()});DEFPRINT(AST_Break,function(self,output){self._do_print(output,"break")});DEFPRINT(AST_Continue,function(self,output){self._do_print(output,"continue")});function make_then(self,output){if(output.option("bracketize")){make_block(self.body,output);return}if(!self.body)return output.force_semicolon();if(self.body instanceof AST_Do){make_block(self.body,output);return}var b=self.body;while(true){if(b instanceof AST_If){if(!b.alternative){make_block(self.body,output);return}b=b.alternative}else if(b instanceof AST_StatementWithBody){b=b.body}else break}force_statement(self.body,output)}DEFPRINT(AST_If,function(self,output){output.print("if");output.space();output.with_parens(function(){self.condition.print(output)});output.space();if(self.alternative){make_then(self,output);output.space();output.print("else");output.space();if(self.alternative instanceof AST_If)self.alternative.print(output);else force_statement(self.alternative,output)}else{self._do_print_body(output)}});DEFPRINT(AST_Switch,function(self,output){output.print("switch");output.space();output.with_parens(function(){self.expression.print(output)});output.space();if(self.body.length>0)output.with_block(function(){self.body.forEach(function(stmt,i){if(i)output.newline();output.indent(true);stmt.print(output)})});else output.print("{}")});AST_SwitchBranch.DEFMETHOD("_do_print_body",function(output){if(this.body.length>0){output.newline();this.body.forEach(function(stmt){output.indent();stmt.print(output);output.newline()})}});DEFPRINT(AST_Default,function(self,output){output.print("default:");self._do_print_body(output)});DEFPRINT(AST_Case,function(self,output){output.print("case");output.space();self.expression.print(output);output.print(":");self._do_print_body(output)});DEFPRINT(AST_Try,function(self,output){output.print("try");output.space();print_bracketed(self.body,output);if(self.bcatch){output.space();self.bcatch.print(output)}if(self.bfinally){output.space();self.bfinally.print(output)}});DEFPRINT(AST_Catch,function(self,output){output.print("catch");output.space();output.with_parens(function(){self.argname.print(output)});output.space();print_bracketed(self.body,output)});DEFPRINT(AST_Finally,function(self,output){output.print("finally");output.space();print_bracketed(self.body,output)});AST_Definitions.DEFMETHOD("_do_print",function(output,kind){output.print(kind);output.space();this.definitions.forEach(function(def,i){if(i)output.comma();def.print(output)});var p=output.parent();var in_for=p instanceof AST_For||p instanceof AST_ForIn;var avoid_semicolon=in_for&&p.init===this;if(!avoid_semicolon)output.semicolon()});DEFPRINT(AST_Let,function(self,output){self._do_print(output,"let")});DEFPRINT(AST_Var,function(self,output){self._do_print(output,"var")});DEFPRINT(AST_Const,function(self,output){self._do_print(output,"const")});DEFPRINT(AST_Import,function(self,output){output.print("import");output.space();if(self.imported_name){self.imported_name.print(output)}if(self.imported_name&&self.imported_names){output.print(",");output.space()}if(self.imported_names){output.print("{");self.imported_names.forEach(function(name_import,i){output.space();name_import.print(output);if(i<self.imported_names.length-1){output.print(",");output.space()}});output.space();output.print("}")}if(self.imported_name||self.imported_names){output.space();output.print("from");output.space()}self.module_name.print(output);output.semicolon()});DEFPRINT(AST_NameImport,function(self,output){var definition=self.name.definition();var names_are_different=(definition&&definition.mangled_name||self.name.name)!==self.foreign_name.name;if(names_are_different){output.print(self.foreign_name.name);output.space();output.print("as");output.space();self.name.print(output)}else{self.name.print(output)}});DEFPRINT(AST_Export,function(self,output){output.print("export");output.space();if(self.is_default){output.print("default");output.space()}if(self.exported_value){self.exported_value.print(output)}else if(self.exported_definition){self.exported_definition.print(output)}output.semicolon()});function parenthesize_for_noin(node,output,noin){if(!noin)node.print(output);else try{node.walk(new TreeWalker(function(node){if(node instanceof AST_Binary&&node.operator=="in")throw output}));node.print(output)}catch(ex){if(ex!==output)throw ex;node.print(output,true)}}DEFPRINT(AST_VarDef,function(self,output){self.name.print(output);if(self.value){output.space();output.print("=");output.space();var p=output.parent(1);var noin=p instanceof AST_For||p instanceof AST_ForIn;parenthesize_for_noin(self.value,output,noin)}});DEFPRINT(AST_Call,function(self,output){self.expression.print(output);if(self instanceof AST_New&&!need_constructor_parens(self,output))return;output.with_parens(function(){self.args.forEach(function(expr,i){if(i)output.comma();expr.print(output)})})});DEFPRINT(AST_New,function(self,output){output.print("new");output.space();AST_Call.prototype._codegen(self,output)});AST_Seq.DEFMETHOD("_do_print",function(output){this.car.print(output);if(this.cdr){output.comma();if(output.should_break()){output.newline();output.indent()}this.cdr.print(output)}});DEFPRINT(AST_Seq,function(self,output){self._do_print(output)});DEFPRINT(AST_Dot,function(self,output){var expr=self.expression;expr.print(output);if(expr instanceof AST_Number&&expr.getValue()>=0){if(!/[xa-f.)]/i.test(output.last())){output.print(".")}}output.print(".");output.add_mapping(self.end);output.print_name(self.property)});DEFPRINT(AST_Sub,function(self,output){self.expression.print(output);output.print("[");self.property.print(output);output.print("]")});DEFPRINT(AST_UnaryPrefix,function(self,output){var op=self.operator;output.print(op);if(/^[a-z]/i.test(op)||/[+-]$/.test(op)&&self.expression instanceof AST_UnaryPrefix&&/^[+-]/.test(self.expression.operator)){output.space()}self.expression.print(output)});DEFPRINT(AST_UnaryPostfix,function(self,output){self.expression.print(output);output.print(self.operator)});DEFPRINT(AST_Binary,function(self,output){var op=self.operator;self.left.print(output);if(op[0]==">"&&self.left instanceof AST_UnaryPostfix&&self.left.operator=="--"){output.print(" ")}else{output.space()}output.print(op);if((op=="<"||op=="<<")&&self.right instanceof AST_UnaryPrefix&&self.right.operator=="!"&&self.right.expression instanceof AST_UnaryPrefix&&self.right.expression.operator=="--"){output.print(" ")}else{output.space()}self.right.print(output)});DEFPRINT(AST_Conditional,function(self,output){self.condition.print(output);output.space();output.print("?");output.space();self.consequent.print(output);output.space();output.colon();self.alternative.print(output)});DEFPRINT(AST_Array,function(self,output){output.with_square(function(){var a=self.elements,len=a.length;if(len>0)output.space();a.forEach(function(exp,i){if(i)output.comma();exp.print(output);if(i===len-1&&exp instanceof AST_Hole)output.comma()});if(len>0)output.space()})});DEFPRINT(AST_Object,function(self,output){if(self.properties.length>0)output.with_block(function(){self.properties.forEach(function(prop,i){if(i){output.print(",");output.newline()}output.indent();prop.print(output)});output.newline()});else output.print("{}")});DEFPRINT(AST_Class,function(self,output){output.print("class");output.space();if(self.name){self.name.print(output);output.space()}if(self.extends){output.print("extends");output.space();self.extends.print(output);output.space()}if(self.properties.length>0)output.with_block(function(){self.properties.forEach(function(prop,i){if(i){output.newline()}output.indent();prop.print(output)});output.newline()});else output.print("{}")});DEFPRINT(AST_NewTarget,function(self,output){output.print("new.target")});AST_ObjectProperty.DEFMETHOD("print_property_name",function(key,quote,output){if(output.option("quote_keys")){output.print_string(key+"")}else if((typeof key=="number"||!output.option("beautify")&&+key+""==key)&&parseFloat(key)>=0){output.print(make_num(key))}else if(RESERVED_WORDS(key)?output.option("screw_ie8"):is_identifier_string(key)){if(quote&&output.option("keep_quoted_props")){output.print_string(key,quote)}else{output.print_name(key)}}else{output.print_string(key,quote)}});DEFPRINT(AST_ObjectKeyVal,function(self,output){function get_name(self){var def=self.definition();return def?def.mangled_name||def.name:self.name}var allowShortHand=output.option("shorthand");if(allowShortHand&&self.value instanceof AST_Symbol&&is_identifier_string(self.key)&&get_name(self.value)===self.key){self.print_property_name(self.key,self.quote,output)}else if(allowShortHand&&self.value instanceof AST_DefaultAssign&&self.value.left instanceof AST_Symbol&&is_identifier_string(self.key)&&get_name(self.value.left)===self.key){self.print_property_name(self.key,self.quote,output);output.print("=");self.value.right.print(output)}else{if(!(self.key instanceof AST_Node)){self.print_property_name(self.key,self.quote,output)}else{output.with_square(function(){self.key.print(output)})}output.colon();self.value.print(output)}});AST_ObjectProperty.DEFMETHOD("_print_getter_setter",function(type,self,output){if(self.static){output.print("static");output.space()}output.print(type);output.space();if(self.key instanceof AST_SymbolMethod){self.print_property_name(self.key.name,self.quote,output)}else{output.with_square(function(){self.key.print(output)})}self.value._do_print(output,true)});DEFPRINT(AST_ObjectSetter,function(self,output){self._print_getter_setter("set",self,output)});DEFPRINT(AST_ObjectGetter,function(self,output){self._print_getter_setter("get",self,output)});DEFPRINT(AST_ConciseMethod,function(self,output){if(self.static){output.print("static");output.space()}if(self.is_generator){output.print("*")}output.space();if(self.key instanceof AST_SymbolMethod){self.print_property_name(self.key.name,self.quote,output)}else{output.with_square(function(){self.key.print(output)})}self.value._do_print(output,true)});AST_Symbol.DEFMETHOD("_do_print",function(output){var def=this.definition();output.print_name(def?def.mangled_name||def.name:this.name)});DEFPRINT(AST_Symbol,function(self,output){self._do_print(output)});DEFPRINT(AST_SymbolDeclaration,function(self,output){self._do_print(output)});DEFPRINT(AST_Undefined,function(self,output){output.print("void 0")});DEFPRINT(AST_Hole,noop);DEFPRINT(AST_Infinity,function(self,output){output.print("Infinity")});DEFPRINT(AST_NaN,function(self,output){output.print("NaN")});DEFPRINT(AST_This,function(self,output){output.print("this")});DEFPRINT(AST_Super,function(self,output){output.print("super")});DEFPRINT(AST_Constant,function(self,output){output.print(self.getValue())});DEFPRINT(AST_String,function(self,output){output.print_string(self.getValue(),self.quote,in_directive)});DEFPRINT(AST_Number,function(self,output){if(use_asm&&self.start&&self.start.raw!=null){output.print(self.start.raw)}else{output.print(make_num(self.getValue()))}});function regexp_safe_literal(code){return[92,47,46,43,42,63,40,41,91,93,123,125,36,94,58,124,33,10,13,0,65279,8232,8233].indexOf(code)<0}DEFPRINT(AST_RegExp,function(self,output){var str=self.getValue().toString();if(output.option("ascii_only")){str=output.to_ascii(str)}else if(output.option("unescape_regexps")){str=str.split("\\\\").map(function(str){return str.replace(/\\u[0-9a-fA-F]{4}|\\x[0-9a-fA-F]{2}/g,function(s){var code=parseInt(s.substr(2),16);return regexp_safe_literal(code)?String.fromCharCode(code):s})}).join("\\\\")}output.print(str);var p=output.parent();if(p instanceof AST_Binary&&/^in/.test(p.operator)&&p.left===self)output.print(" ")});function force_statement(stat,output){if(output.option("bracketize")){if(!stat||stat instanceof AST_EmptyStatement)output.print("{}");else if(stat instanceof AST_BlockStatement)stat.print(output);else output.with_block(function(){output.indent();stat.print(output);output.newline()})}else{if(!stat||stat instanceof AST_EmptyStatement)output.force_semicolon();else stat.print(output)}}function need_constructor_parens(self,output){if(self.args.length>0)return true;return output.option("beautify")}function best_of(a){var best=a[0],len=best.length;for(var i=1;i<a.length;++i){if(a[i].length<len){best=a[i];len=best.length}}return best}function make_num(num){
-var str=num.toString(10),a=[str.replace(/^0\./,".").replace("e+","e")],m;if(Math.floor(num)===num){if(num>=0){a.push("0x"+num.toString(16).toLowerCase(),"0"+num.toString(8))}else{a.push("-0x"+(-num).toString(16).toLowerCase(),"-0"+(-num).toString(8))}if(m=/^(.*?)(0+)$/.exec(num)){a.push(m[1]+"e"+m[2].length)}}else if(m=/^0?\.(0+)(.*)$/.exec(num)){a.push(m[2]+"e-"+(m[1].length+m[2].length),str.substr(str.indexOf(".")))}return best_of(a)}function make_block(stmt,output){if(stmt instanceof AST_BlockStatement){stmt.print(output);return}output.with_block(function(){output.indent();stmt.print(output);output.newline()})}function DEFMAP(nodetype,generator){nodetype.DEFMETHOD("add_source_map",function(stream){generator(this,stream)})}DEFMAP(AST_Node,noop);function basic_sourcemap_gen(self,output){output.add_mapping(self.start)}DEFMAP(AST_Directive,basic_sourcemap_gen);DEFMAP(AST_Debugger,basic_sourcemap_gen);DEFMAP(AST_Symbol,basic_sourcemap_gen);DEFMAP(AST_Jump,basic_sourcemap_gen);DEFMAP(AST_StatementWithBody,basic_sourcemap_gen);DEFMAP(AST_LabeledStatement,noop);DEFMAP(AST_Lambda,basic_sourcemap_gen);DEFMAP(AST_Switch,basic_sourcemap_gen);DEFMAP(AST_SwitchBranch,basic_sourcemap_gen);DEFMAP(AST_BlockStatement,basic_sourcemap_gen);DEFMAP(AST_Toplevel,noop);DEFMAP(AST_New,basic_sourcemap_gen);DEFMAP(AST_Try,basic_sourcemap_gen);DEFMAP(AST_Catch,basic_sourcemap_gen);DEFMAP(AST_Finally,basic_sourcemap_gen);DEFMAP(AST_Definitions,basic_sourcemap_gen);DEFMAP(AST_Constant,basic_sourcemap_gen);DEFMAP(AST_ObjectSetter,function(self,output){output.add_mapping(self.start,self.key.name)});DEFMAP(AST_ObjectGetter,function(self,output){output.add_mapping(self.start,self.key.name)});DEFMAP(AST_ObjectProperty,function(self,output){output.add_mapping(self.start,self.key)})})();/***********************************************************************
+"use strict";var EXPECT_DIRECTIVE=/^$|[;{][\s\n]*$/;function is_some_comments(comment){var text=comment.value;var type=comment.type;if(type=="comment2"){return/@preserve|@license|@cc_on/i.test(text)}return type=="comment5"}function is_comment5(comment){return comment.type=="comment5"}function OutputStream(options){options=defaults(options,{indent_start:0,indent_level:4,quote_keys:false,space_colon:true,ascii_only:false,unescape_regexps:false,inline_script:false,width:80,max_line_len:false,beautify:false,source_map:null,bracketize:false,semicolons:true,comments:false,shebang:true,preserve_line:false,screw_ie8:true,preamble:null,quote_style:0,keep_quoted_props:false,wrap_iife:false},true);var comment_filter=options.shebang?is_comment5:return_false;if(options.comments){var comments=options.comments;if(typeof options.comments==="string"&&/^\/.*\/[a-zA-Z]*$/.test(options.comments)){var regex_pos=options.comments.lastIndexOf("/");comments=new RegExp(options.comments.substr(1,regex_pos-1),options.comments.substr(regex_pos+1))}if(comments instanceof RegExp){comment_filter=function(comment){return comment.type=="comment5"||comments.test(comment.value)}}else if(typeof comments==="function"){comment_filter=function(comment){return comment.type=="comment5"||comments(this,comment)}}else if(comments==="some"){comment_filter=is_some_comments}else{comment_filter=return_true}}var indentation=0;var current_col=0;var current_line=1;var current_pos=0;var OUTPUT="";function to_ascii(str,identifier){return str.replace(/[\u0000-\u001f\u007f-\uffff]/g,function(ch){var code=ch.charCodeAt(0).toString(16);if(code.length<=2&&!identifier){while(code.length<2)code="0"+code;return"\\x"+code}else{while(code.length<4)code="0"+code;return"\\u"+code}})}function make_string(str,quote){var dq=0,sq=0;str=str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g,function(s,i){switch(s){case'"':++dq;return'"';case"'":++sq;return"'";case"\\":return"\\\\";case"\n":return"\\n";case"\r":return"\\r";case"\t":return"\\t";case"\b":return"\\b";case"\f":return"\\f";case"\v":return options.screw_ie8?"\\v":"\\x0B";case"\u2028":return"\\u2028";case"\u2029":return"\\u2029";case"\ufeff":return"\\ufeff";case"\0":return/[0-7]/.test(str.charAt(i+1))?"\\x00":"\\0"}return s});function quote_single(){return"'"+str.replace(/\x27/g,"\\'")+"'"}function quote_double(){return'"'+str.replace(/\x22/g,'\\"')+'"'}if(options.ascii_only)str=to_ascii(str);switch(options.quote_style){case 1:return quote_single();case 2:return quote_double();case 3:return quote=="'"?quote_single():quote_double();default:return dq>sq?quote_single():quote_double()}}function encode_string(str,quote){var ret=make_string(str,quote);if(options.inline_script){ret=ret.replace(/<\x2fscript([>\/\t\n\f\r ])/gi,"<\\/script$1");ret=ret.replace(/\x3c!--/g,"\\x3c!--");ret=ret.replace(/--\x3e/g,"--\\x3e")}return ret}function make_name(name){name=name.toString();if(options.ascii_only)name=to_ascii(name,true);return name}function make_indent(back){return repeat_string(" ",options.indent_start+indentation-back*options.indent_level)}var might_need_space=false;var might_need_semicolon=false;var might_add_newline=0;var last=null;function last_char(){return last.charAt(last.length-1)}var ensure_line_len=options.max_line_len?function(){if(current_col>options.max_line_len){if(might_add_newline){var left=OUTPUT.slice(0,might_add_newline);var right=OUTPUT.slice(might_add_newline);OUTPUT=left+"\n"+right;current_line++;current_pos++;current_col=right.length}if(current_col>options.max_line_len){AST_Node.warn("Output exceeds {max_line_len} characters",options)}}might_add_newline=0}:noop;var requireSemicolonChars=makePredicate("( [ + * / - , .");function print(str){str=String(str);var ch=str.charAt(0);if(might_need_semicolon){might_need_semicolon=false;if((!ch||";}".indexOf(ch)<0)&&!/[;]$/.test(last)){if(options.semicolons||requireSemicolonChars(ch)){OUTPUT+=";";current_col++;current_pos++}else{ensure_line_len();OUTPUT+="\n";current_pos++;current_line++;current_col=0;if(/^\s+$/.test(str)){might_need_semicolon=true}}if(!options.beautify)might_need_space=false}}if(!options.beautify&&options.preserve_line&&stack[stack.length-1]){var target_line=stack[stack.length-1].start.line;while(current_line<target_line){ensure_line_len();OUTPUT+="\n";current_pos++;current_line++;current_col=0;might_need_space=false}}if(might_need_space){var prev=last_char();if(is_identifier_char(prev)&&(is_identifier_char(ch)||ch=="\\")||ch=="/"&&ch==prev||(ch=="+"||ch=="-")&&ch==last){OUTPUT+=" ";current_col++;current_pos++}might_need_space=false}OUTPUT+=str;current_pos+=str.length;var a=str.split(/\r?\n/),n=a.length-1;current_line+=n;current_col+=a[0].length;if(n>0){ensure_line_len();current_col=a[n].length}last=str}var space=options.beautify?function(){print(" ")}:function(){might_need_space=true};var indent=options.beautify?function(half){if(options.beautify){print(make_indent(half?.5:0))}}:noop;var with_indent=options.beautify?function(col,cont){if(col===true)col=next_indent();var save_indentation=indentation;indentation=col;var ret=cont();indentation=save_indentation;return ret}:function(col,cont){return cont()};var newline=options.beautify?function(){print("\n")}:options.max_line_len?function(){ensure_line_len();might_add_newline=OUTPUT.length}:noop;var semicolon=options.beautify?function(){print(";")}:function(){might_need_semicolon=true};function force_semicolon(){might_need_semicolon=false;print(";")}function next_indent(){return indentation+options.indent_level}function with_block(cont){var ret;print("{");newline();with_indent(next_indent(),function(){ret=cont()});indent();print("}");return ret}function with_parens(cont){print("(");var ret=cont();print(")");return ret}function with_square(cont){print("[");var ret=cont();print("]");return ret}function comma(){print(",");space()}function colon(){print(":");if(options.space_colon)space()}var add_mapping=options.source_map?function(token,name){try{if(token)options.source_map.add(token.file||"?",current_line,current_col,token.line,token.col,!name&&token.type=="name"?token.value:name)}catch(ex){AST_Node.warn("Couldn't figure out mapping for {file}:{line},{col} → {cline},{ccol} [{name}]",{file:token.file,line:token.line,col:token.col,cline:current_line,ccol:current_col,name:name||""})}}:noop;function get(){if(might_add_newline){ensure_line_len()}return OUTPUT}if(options.preamble){print(options.preamble.replace(/\r\n?|[\n\u2028\u2029]|\s*$/g,"\n"))}var stack=[];return{get:get,toString:get,indent:indent,indentation:function(){return indentation},current_width:function(){return current_col-indentation},should_break:function(){return options.width&&this.current_width()>=options.width},newline:newline,print:print,space:space,comma:comma,colon:colon,last:function(){return last},semicolon:semicolon,force_semicolon:force_semicolon,to_ascii:to_ascii,print_name:function(name){print(make_name(name))},print_string:function(str,quote,escape_directive){var encoded=encode_string(str,quote);if(escape_directive===true&&encoded.indexOf("\\")===-1){if(!EXPECT_DIRECTIVE.test(OUTPUT)){force_semicolon()}force_semicolon()}print(encoded)},encode_string:encode_string,next_indent:next_indent,with_indent:with_indent,with_block:with_block,with_parens:with_parens,with_square:with_square,add_mapping:add_mapping,option:function(opt){return options[opt]},comment_filter:comment_filter,line:function(){return current_line},col:function(){return current_col},pos:function(){return current_pos},push_node:function(node){stack.push(node)},pop_node:function(){return stack.pop()},parent:function(n){return stack[stack.length-2-(n||0)]}}}(function(){function DEFPRINT(nodetype,generator){nodetype.DEFMETHOD("_codegen",generator)}var use_asm=false;var in_directive=false;AST_Node.DEFMETHOD("print",function(stream,force_parens){var self=this,generator=self._codegen,prev_use_asm=use_asm;if(self instanceof AST_Directive&&self.value=="use asm"&&stream.parent()instanceof AST_Scope){use_asm=true}function doit(){self.add_comments(stream);self.add_source_map(stream);generator(self,stream)}stream.push_node(self);if(force_parens||self.needs_parens(stream)){stream.with_parens(doit)}else{doit()}stream.pop_node();if(self instanceof AST_Scope){use_asm=prev_use_asm}});AST_Node.DEFMETHOD("print_to_string",function(options){var s=OutputStream(options);if(!options)s._readonly=true;this.print(s);return s.get()});AST_Node.DEFMETHOD("add_comments",function(output){if(output._readonly)return;var self=this;var start=self.start;if(start&&!start._comments_dumped){start._comments_dumped=true;var comments=start.comments_before||[];if(self instanceof AST_Exit&&self.value){self.value.walk(new TreeWalker(function(node){if(node.start&&node.start.comments_before){comments=comments.concat(node.start.comments_before);node.start.comments_before=[]}if(node instanceof AST_Function||node instanceof AST_Array||node instanceof AST_Object){return true}}))}comments=comments.filter(output.comment_filter,self);if(!output.option("beautify")&&comments.length>0&&/comment[134]/.test(comments[0].type)&&output.col()!==0&&comments[0].nlb){output.print("\n")}comments.forEach(function(c){if(/comment[134]/.test(c.type)){output.print("//"+c.value+"\n");output.indent()}else if(c.type=="comment2"){output.print("/*"+c.value+"*/");if(start.nlb){output.print("\n");output.indent()}else{output.space()}}else if(output.pos()===0&&c.type=="comment5"&&output.option("shebang")){output.print("#!"+c.value+"\n");output.indent()}})}});function PARENS(nodetype,func){if(Array.isArray(nodetype)){nodetype.forEach(function(nodetype){PARENS(nodetype,func)})}else{nodetype.DEFMETHOD("needs_parens",func)}}PARENS(AST_Node,function(){return false});PARENS(AST_Function,function(output){if(first_in_statement(output)){return true}if(output.option("wrap_iife")){var p=output.parent();return p instanceof AST_Call&&p.expression===this}return false});PARENS(AST_Object,function(output){return first_in_statement(output)});PARENS([AST_Unary,AST_Undefined],function(output){var p=output.parent();return p instanceof AST_PropAccess&&p.expression===this||p instanceof AST_Call&&p.expression===this});PARENS(AST_Seq,function(output){var p=output.parent();return p instanceof AST_Call||p instanceof AST_Unary||p instanceof AST_Binary||p instanceof AST_VarDef||p instanceof AST_PropAccess||p instanceof AST_Array||p instanceof AST_ObjectProperty||p instanceof AST_Conditional});PARENS(AST_Binary,function(output){var p=output.parent();if(p instanceof AST_Call&&p.expression===this)return true;if(p instanceof AST_Unary)return true;if(p instanceof AST_PropAccess&&p.expression===this)return true;if(p instanceof AST_Binary){var po=p.operator,pp=PRECEDENCE[po];var so=this.operator,sp=PRECEDENCE[so];if(pp>sp||pp==sp&&this===p.right){return true}}});PARENS(AST_PropAccess,function(output){var p=output.parent();if(p instanceof AST_New&&p.expression===this){try{this.walk(new TreeWalker(function(node){if(node instanceof AST_Call)throw p}))}catch(ex){if(ex!==p)throw ex;return true}}});PARENS(AST_Call,function(output){var p=output.parent(),p1;if(p instanceof AST_New&&p.expression===this)return true;return this.expression instanceof AST_Function&&p instanceof AST_PropAccess&&p.expression===this&&(p1=output.parent(1))instanceof AST_Assign&&p1.left===p});PARENS(AST_New,function(output){var p=output.parent();if(!need_constructor_parens(this,output)&&(p instanceof AST_PropAccess||p instanceof AST_Call&&p.expression===this))return true});PARENS(AST_Number,function(output){var p=output.parent();if(p instanceof AST_PropAccess&&p.expression===this){var value=this.getValue();if(value<0||/^0/.test(make_num(value))){return true}}});PARENS([AST_Assign,AST_Conditional],function(output){var p=output.parent();if(p instanceof AST_Unary)return true;if(p instanceof AST_Binary&&!(p instanceof AST_Assign))return true;if(p instanceof AST_Call&&p.expression===this)return true;if(p instanceof AST_Conditional&&p.condition===this)return true;if(p instanceof AST_PropAccess&&p.expression===this)return true});DEFPRINT(AST_Directive,function(self,output){output.print_string(self.value,self.quote);output.semicolon()});DEFPRINT(AST_Debugger,function(self,output){output.print("debugger");output.semicolon()});function display_body(body,is_toplevel,output,allow_directives){var last=body.length-1;in_directive=allow_directives;body.forEach(function(stmt,i){if(in_directive===true&&!(stmt instanceof AST_Directive||stmt instanceof AST_EmptyStatement||stmt instanceof AST_SimpleStatement&&stmt.body instanceof AST_String)){in_directive=false}if(!(stmt instanceof AST_EmptyStatement)){output.indent();stmt.print(output);if(!(i==last&&is_toplevel)){output.newline();if(is_toplevel)output.newline()}}if(in_directive===true&&stmt instanceof AST_SimpleStatement&&stmt.body instanceof AST_String){in_directive=false}});in_directive=false}AST_StatementWithBody.DEFMETHOD("_do_print_body",function(output){force_statement(this.body,output)});DEFPRINT(AST_Statement,function(self,output){self.body.print(output);output.semicolon()});DEFPRINT(AST_Toplevel,function(self,output){display_body(self.body,true,output,true);output.print("")});DEFPRINT(AST_LabeledStatement,function(self,output){self.label.print(output);output.colon();self.body.print(output)});DEFPRINT(AST_SimpleStatement,function(self,output){self.body.print(output);output.semicolon()});function print_bracketed(body,output,allow_directives){if(body.length>0)output.with_block(function(){display_body(body,false,output,allow_directives)});else output.print("{}")}DEFPRINT(AST_BlockStatement,function(self,output){print_bracketed(self.body,output)});DEFPRINT(AST_EmptyStatement,function(self,output){output.semicolon()});DEFPRINT(AST_Do,function(self,output){output.print("do");output.space();self._do_print_body(output);output.space();output.print("while");output.space();output.with_parens(function(){self.condition.print(output)});output.semicolon()});DEFPRINT(AST_While,function(self,output){output.print("while");output.space();output.with_parens(function(){self.condition.print(output)});output.space();self._do_print_body(output)});DEFPRINT(AST_For,function(self,output){output.print("for");output.space();output.with_parens(function(){if(self.init&&!(self.init instanceof AST_EmptyStatement)){if(self.init instanceof AST_Definitions){self.init.print(output)}else{parenthesize_for_noin(self.init,output,true)}output.print(";");output.space()}else{output.print(";")}if(self.condition){self.condition.print(output);output.print(";");output.space()}else{output.print(";")}if(self.step){self.step.print(output)}});output.space();self._do_print_body(output)});DEFPRINT(AST_ForIn,function(self,output){output.print("for");output.space();output.with_parens(function(){self.init.print(output);output.space();output.print("in");output.space();self.object.print(output)});output.space();self._do_print_body(output)});DEFPRINT(AST_With,function(self,output){output.print("with");output.space();output.with_parens(function(){self.expression.print(output)});output.space();self._do_print_body(output)});AST_Lambda.DEFMETHOD("_do_print",function(output,nokeyword){var self=this;if(!nokeyword){output.print("function")}if(self.name){output.space();self.name.print(output)}output.with_parens(function(){self.argnames.forEach(function(arg,i){if(i)output.comma();arg.print(output)})});output.space();print_bracketed(self.body,output,true)});DEFPRINT(AST_Lambda,function(self,output){self._do_print(output)});AST_Exit.DEFMETHOD("_do_print",function(output,kind){output.print(kind);if(this.value){output.space();this.value.print(output)}output.semicolon()});DEFPRINT(AST_Return,function(self,output){self._do_print(output,"return")});DEFPRINT(AST_Throw,function(self,output){self._do_print(output,"throw")});AST_LoopControl.DEFMETHOD("_do_print",function(output,kind){output.print(kind);if(this.label){output.space();this.label.print(output)}output.semicolon()});DEFPRINT(AST_Break,function(self,output){self._do_print(output,"break")});DEFPRINT(AST_Continue,function(self,output){self._do_print(output,"continue")});function make_then(self,output){if(output.option("bracketize")){make_block(self.body,output);return}if(!self.body)return output.force_semicolon();if(self.body instanceof AST_Do){make_block(self.body,output);return}var b=self.body;while(true){if(b instanceof AST_If){if(!b.alternative){make_block(self.body,output);return}b=b.alternative}else if(b instanceof AST_StatementWithBody){b=b.body}else break}force_statement(self.body,output)}DEFPRINT(AST_If,function(self,output){output.print("if");output.space();output.with_parens(function(){self.condition.print(output)});output.space();if(self.alternative){make_then(self,output);output.space();output.print("else");output.space();if(self.alternative instanceof AST_If)self.alternative.print(output);else force_statement(self.alternative,output)}else{self._do_print_body(output)}});DEFPRINT(AST_Switch,function(self,output){output.print("switch");output.space();output.with_parens(function(){self.expression.print(output)});output.space();if(self.body.length>0)output.with_block(function(){self.body.forEach(function(stmt,i){if(i)output.newline();output.indent(true);stmt.print(output)})});else output.print("{}")});AST_SwitchBranch.DEFMETHOD("_do_print_body",function(output){if(this.body.length>0){output.newline();this.body.forEach(function(stmt){output.indent();stmt.print(output);output.newline()})}});DEFPRINT(AST_Default,function(self,output){output.print("default:");self._do_print_body(output)});DEFPRINT(AST_Case,function(self,output){output.print("case");output.space();self.expression.print(output);output.print(":");self._do_print_body(output)});DEFPRINT(AST_Try,function(self,output){output.print("try");output.space();print_bracketed(self.body,output);if(self.bcatch){output.space();self.bcatch.print(output)}if(self.bfinally){output.space();self.bfinally.print(output)}});DEFPRINT(AST_Catch,function(self,output){output.print("catch");output.space();output.with_parens(function(){self.argname.print(output)});output.space();print_bracketed(self.body,output)});DEFPRINT(AST_Finally,function(self,output){output.print("finally");output.space();print_bracketed(self.body,output)});AST_Definitions.DEFMETHOD("_do_print",function(output,kind){output.print(kind);output.space();this.definitions.forEach(function(def,i){if(i)output.comma();def.print(output)});var p=output.parent();var in_for=p instanceof AST_For||p instanceof AST_ForIn;var avoid_semicolon=in_for&&p.init===this;if(!avoid_semicolon)output.semicolon()});DEFPRINT(AST_Var,function(self,output){self._do_print(output,"var")});DEFPRINT(AST_Const,function(self,output){self._do_print(output,"const")});function parenthesize_for_noin(node,output,noin){if(!noin)node.print(output);else try{node.walk(new TreeWalker(function(node){if(node instanceof AST_Binary&&node.operator=="in")throw output}));node.print(output)}catch(ex){if(ex!==output)throw ex;node.print(output,true)}}DEFPRINT(AST_VarDef,function(self,output){self.name.print(output);if(self.value){output.space();output.print("=");output.space();var p=output.parent(1);var noin=p instanceof AST_For||p instanceof AST_ForIn;parenthesize_for_noin(self.value,output,noin)}});DEFPRINT(AST_Call,function(self,output){self.expression.print(output);if(self instanceof AST_New&&!need_constructor_parens(self,output))return;output.with_parens(function(){self.args.forEach(function(expr,i){if(i)output.comma();expr.print(output)})})});DEFPRINT(AST_New,function(self,output){output.print("new");output.space();AST_Call.prototype._codegen(self,output)});AST_Seq.DEFMETHOD("_do_print",function(output){this.car.print(output);if(this.cdr){output.comma();if(output.should_break()){output.newline();output.indent()}this.cdr.print(output)}});DEFPRINT(AST_Seq,function(self,output){self._do_print(output)});DEFPRINT(AST_Dot,function(self,output){var expr=self.expression;expr.print(output);if(expr instanceof AST_Number&&expr.getValue()>=0){if(!/[xa-f.)]/i.test(output.last())){output.print(".")}}output.print(".");output.add_mapping(self.end);output.print_name(self.property)});DEFPRINT(AST_Sub,function(self,output){self.expression.print(output);output.print("[");self.property.print(output);output.print("]")});DEFPRINT(AST_UnaryPrefix,function(self,output){var op=self.operator;output.print(op);if(/^[a-z]/i.test(op)||/[+-]$/.test(op)&&self.expression instanceof AST_UnaryPrefix&&/^[+-]/.test(self.expression.operator)){output.space()}self.expression.print(output)});DEFPRINT(AST_UnaryPostfix,function(self,output){self.expression.print(output);output.print(self.operator)});DEFPRINT(AST_Binary,function(self,output){var op=self.operator;self.left.print(output);if(op[0]==">"&&self.left instanceof AST_UnaryPostfix&&self.left.operator=="--"){output.print(" ")}else{output.space()}output.print(op);if((op=="<"||op=="<<")&&self.right instanceof AST_UnaryPrefix&&self.right.operator=="!"&&self.right.expression instanceof AST_UnaryPrefix&&self.right.expression.operator=="--"){output.print(" ")}else{output.space()}self.right.print(output)});DEFPRINT(AST_Conditional,function(self,output){self.condition.print(output);output.space();output.print("?");output.space();self.consequent.print(output);output.space();output.colon();self.alternative.print(output)});DEFPRINT(AST_Array,function(self,output){output.with_square(function(){var a=self.elements,len=a.length;if(len>0)output.space();a.forEach(function(exp,i){if(i)output.comma();exp.print(output);if(i===len-1&&exp instanceof AST_Hole)output.comma()});if(len>0)output.space()})});DEFPRINT(AST_Object,function(self,output){if(self.properties.length>0)output.with_block(function(){self.properties.forEach(function(prop,i){if(i){output.print(",");output.newline()}output.indent();prop.print(output)});output.newline()});else output.print("{}")});DEFPRINT(AST_ObjectKeyVal,function(self,output){var key=self.key;var quote=self.quote;if(output.option("quote_keys")){output.print_string(key+"")}else if((typeof key=="number"||!output.option("beautify")&&+key+""==key)&&parseFloat(key)>=0){output.print(make_num(key))}else if(RESERVED_WORDS(key)?output.option("screw_ie8"):is_identifier_string(key)){if(quote&&output.option("keep_quoted_props")){output.print_string(key,quote)}else{output.print_name(key)}}else{output.print_string(key,quote)}output.colon();self.value.print(output)});DEFPRINT(AST_ObjectSetter,function(self,output){output.print("set");output.space();self.key.print(output);self.value._do_print(output,true)});DEFPRINT(AST_ObjectGetter,function(self,output){output.print("get");output.space();self.key.print(output);self.value._do_print(output,true)});DEFPRINT(AST_Symbol,function(self,output){var def=self.definition();output.print_name(def?def.mangled_name||def.name:self.name)});DEFPRINT(AST_Undefined,function(self,output){output.print("void 0")});DEFPRINT(AST_Hole,noop);DEFPRINT(AST_Infinity,function(self,output){output.print("Infinity")});DEFPRINT(AST_NaN,function(self,output){output.print("NaN")});DEFPRINT(AST_This,function(self,output){output.print("this")});DEFPRINT(AST_Constant,function(self,output){output.print(self.getValue())});DEFPRINT(AST_String,function(self,output){output.print_string(self.getValue(),self.quote,in_directive)});DEFPRINT(AST_Number,function(self,output){if(use_asm&&self.start&&self.start.raw!=null){output.print(self.start.raw)}else{output.print(make_num(self.getValue()))}});function regexp_safe_literal(code){return[92,47,46,43,42,63,40,41,91,93,123,125,36,94,58,124,33,10,13,0,65279,8232,8233].indexOf(code)<0}DEFPRINT(AST_RegExp,function(self,output){var str=self.getValue().toString();if(output.option("ascii_only")){str=output.to_ascii(str)}else if(output.option("unescape_regexps")){str=str.split("\\\\").map(function(str){return str.replace(/\\u[0-9a-fA-F]{4}|\\x[0-9a-fA-F]{2}/g,function(s){var code=parseInt(s.substr(2),16);return regexp_safe_literal(code)?String.fromCharCode(code):s})}).join("\\\\")}output.print(str);var p=output.parent();if(p instanceof AST_Binary&&/^in/.test(p.operator)&&p.left===self)output.print(" ")});function force_statement(stat,output){if(output.option("bracketize")){if(!stat||stat instanceof AST_EmptyStatement)output.print("{}");else if(stat instanceof AST_BlockStatement)stat.print(output);else output.with_block(function(){output.indent();stat.print(output);output.newline()})}else{if(!stat||stat instanceof AST_EmptyStatement)output.force_semicolon();else stat.print(output)}}function need_constructor_parens(self,output){if(self.args.length>0)return true;return output.option("beautify")}function best_of(a){var best=a[0],len=best.length;for(var i=1;i<a.length;++i){if(a[i].length<len){best=a[i];len=best.length}}return best}function make_num(num){var str=num.toString(10),a=[str.replace(/^0\./,".").replace("e+","e")],m;if(Math.floor(num)===num){if(num>=0){a.push("0x"+num.toString(16).toLowerCase(),"0"+num.toString(8))}else{a.push("-0x"+(-num).toString(16).toLowerCase(),"-0"+(-num).toString(8))}if(m=/^(.*?)(0+)$/.exec(num)){a.push(m[1]+"e"+m[2].length)}}else if(m=/^0?\.(0+)(.*)$/.exec(num)){a.push(m[2]+"e-"+(m[1].length+m[2].length),str.substr(str.indexOf(".")))}return best_of(a)}function make_block(stmt,output){if(stmt instanceof AST_BlockStatement){stmt.print(output);return}output.with_block(function(){output.indent();stmt.print(output);output.newline()})}function DEFMAP(nodetype,generator){nodetype.DEFMETHOD("add_source_map",function(stream){generator(this,stream)})}DEFMAP(AST_Node,noop);function basic_sourcemap_gen(self,output){output.add_mapping(self.start)}DEFMAP(AST_Directive,basic_sourcemap_gen);DEFMAP(AST_Debugger,basic_sourcemap_gen);DEFMAP(AST_Symbol,basic_sourcemap_gen);DEFMAP(AST_Jump,basic_sourcemap_gen);DEFMAP(AST_StatementWithBody,basic_sourcemap_gen);DEFMAP(AST_LabeledStatement,noop);DEFMAP(AST_Lambda,basic_sourcemap_gen);DEFMAP(AST_Switch,basic_sourcemap_gen);DEFMAP(AST_SwitchBranch,basic_sourcemap_gen);DEFMAP(AST_BlockStatement,basic_sourcemap_gen);DEFMAP(AST_Toplevel,noop);DEFMAP(AST_New,basic_sourcemap_gen);DEFMAP(AST_Try,basic_sourcemap_gen);DEFMAP(AST_Catch,basic_sourcemap_gen);DEFMAP(AST_Finally,basic_sourcemap_gen);DEFMAP(AST_Definitions,basic_sourcemap_gen);DEFMAP(AST_Constant,basic_sourcemap_gen);DEFMAP(AST_ObjectSetter,function(self,output){output.add_mapping(self.start,self.key.name)});DEFMAP(AST_ObjectGetter,function(self,output){output.add_mapping(self.start,self.key.name)});DEFMAP(AST_ObjectProperty,function(self,output){output.add_mapping(self.start,self.key)})})();/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor.
https://github.com/mishoo/UglifyJS2
-------------------------------- (C) ---------------------------------
@@ -294,13 +292,13 @@
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
***********************************************************************/
-"use strict";function Compressor(options,false_by_default){if(!(this instanceof Compressor))return new Compressor(options,false_by_default);TreeTransformer.call(this,this.before,this.after);this.options=defaults(options,{sequences:!false_by_default,properties:!false_by_default,dead_code:!false_by_default,drop_debugger:!false_by_default,unsafe:false,unsafe_comps:false,unsafe_proto:false,conditionals:!false_by_default,comparisons:!false_by_default,evaluate:!false_by_default,booleans:!false_by_default,loops:!false_by_default,unused:!false_by_default,toplevel:!!(options&&options["top_retain"]),top_retain:null,hoist_funs:!false_by_default,keep_fargs:true,keep_fnames:false,hoist_vars:false,if_return:!false_by_default,join_vars:!false_by_default,collapse_vars:!false_by_default,reduce_vars:!false_by_default,cascade:!false_by_default,side_effects:!false_by_default,pure_getters:false,pure_funcs:null,negate_iife:!false_by_default,screw_ie8:true,ecma:5,drop_console:false,angular:false,warnings:true,global_defs:{},passes:1},true);var pure_funcs=this.options["pure_funcs"];if(typeof pure_funcs=="function"){this.pure_funcs=pure_funcs}else{this.pure_funcs=pure_funcs?function(node){return pure_funcs.indexOf(node.expression.print_to_string())<0}:return_true}var top_retain=this.options["top_retain"];if(top_retain instanceof RegExp){this.top_retain=function(def){return top_retain.test(def.name)}}else if(typeof top_retain==="function"){this.top_retain=top_retain}else if(top_retain){if(typeof top_retain==="string"){top_retain=top_retain.split(/,/)}this.top_retain=function(def){return top_retain.indexOf(def.name)>=0}}var sequences=this.options["sequences"];this.sequences_limit=sequences==1?200:sequences|0;this.warnings_produced={}}Compressor.prototype=new TreeTransformer;merge(Compressor.prototype,{option:function(key){return this.options[key]},compress:function(node){var passes=+this.options.passes||1;for(var pass=0;pass<passes&&pass<3;++pass){if(pass>0||this.option("reduce_vars"))node.reset_opt_flags(this,true);node=node.transform(this)}return node},warn:function(text,props){if(this.options.warnings){var message=string_template(text,props);if(!(message in this.warnings_produced)){this.warnings_produced[message]=true;AST_Node.warn.apply(AST_Node,arguments)}}},clear_warnings:function(){this.warnings_produced={}},before:function(node,descend,in_list){if(node._squeezed)return node;var was_scope=false;if(node instanceof AST_Scope){node=node.hoist_declarations(this);was_scope=true}descend(node,this);node=node.optimize(this);if(was_scope&&node instanceof AST_Scope){node.drop_unused(this);descend(node,this)}node._squeezed=true;return node}});(function(){function OPT(node,optimizer){node.DEFMETHOD("optimize",function(compressor){var self=this;if(self._optimized)return self;if(compressor.has_directive("use asm"))return self;var opt=optimizer(self,compressor);opt._optimized=true;if(opt===self)return opt;return opt.transform(compressor)})}OPT(AST_Node,function(self,compressor){return self});AST_Node.DEFMETHOD("equivalent_to",function(node){return this.print_to_string()==node.print_to_string()});AST_Node.DEFMETHOD("reset_opt_flags",function(compressor,rescan){var reduce_vars=rescan&&compressor.option("reduce_vars");var safe_ids=[];push();var suppressor=new TreeWalker(function(node){if(node instanceof AST_Symbol){var d=node.definition();if(node instanceof AST_SymbolRef)d.references.push(node);d.fixed=false}});var tw=new TreeWalker(function(node){if(!(node instanceof AST_Directive||node instanceof AST_Constant)){node._squeezed=false;node._optimized=false}if(reduce_vars){if(node instanceof AST_Toplevel)node.globals.each(reset_def);if(node instanceof AST_Scope)node.variables.each(reset_def);if(node instanceof AST_SymbolRef){var d=node.definition();d.references.push(node);if(!d.fixed||isModified(node,0)||!is_safe(d)){d.fixed=false}}if(node instanceof AST_VarDef){if(node.name instanceof AST_Destructuring){node.name.walk(suppressor)}else{var d=node.name.definition();if(d.fixed===undefined){d.fixed=node.value||make_node(AST_Undefined,node);mark_as_safe(d)}else{d.fixed=false}}}var iife;if(node instanceof AST_Function&&(iife=tw.parent())instanceof AST_Call&&iife.expression===node){node.argnames.forEach(function(arg,i){var d=arg.definition();d.fixed=iife.args[i]||make_node(AST_Undefined,iife);mark_as_safe(d)})}if(node instanceof AST_If||node instanceof AST_DWLoop){node.condition.walk(tw);push();node.body.walk(tw);pop();if(node.alternative){push();node.alternative.walk(tw);pop()}return true}if(node instanceof AST_LabeledStatement){push();node.body.walk(tw);pop();return true}if(node instanceof AST_For){if(node.init)node.init.walk(tw);push();if(node.condition)node.condition.walk(tw);node.body.walk(tw);if(node.step)node.step.walk(tw);pop();return true}if(node instanceof AST_ForIn){node.init.walk(suppressor);node.object.walk(tw);push();node.body.walk(tw);pop();return true}}});this.walk(tw);function mark_as_safe(def){safe_ids[safe_ids.length-1][def.id]=true}function is_safe(def){for(var i=safe_ids.length,id=def.id;--i>=0;){if(safe_ids[i][id])return true}}function push(){safe_ids.push(Object.create(null))}function pop(){safe_ids.pop()}function reset_def(def){def.fixed=undefined;def.references=[];def.should_replace=undefined}function isModified(node,level){var parent=tw.parent(level);if(isLHS(node,parent)||parent instanceof AST_Call&&parent.expression===node){return true}else if(parent instanceof AST_PropAccess&&parent.expression===node){return isModified(parent,level+1)}}});function make_node(ctor,orig,props){if(!props)props={};if(orig){if(!props.start)props.start=orig.start;if(!props.end)props.end=orig.end}return new ctor(props)}function make_node_from_constant(compressor,val,orig){switch(typeof val){case"string":return make_node(AST_String,orig,{value:val});case"number":if(isNaN(val)){return make_node(AST_NaN,orig)}if(1/val<0){return make_node(AST_UnaryPrefix,orig,{operator:"-",expression:make_node(AST_Number,orig,{value:-val})})}return make_node(AST_Number,orig,{value:val});case"boolean":return make_node(val?AST_True:AST_False,orig).transform(compressor);case"undefined":return make_node(AST_Undefined,orig).transform(compressor);default:if(val===null){return make_node(AST_Null,orig,{value:null})}if(val instanceof RegExp){return make_node(AST_RegExp,orig,{value:val})}throw new Error(string_template("Can't handle constant of type: {type}",{type:typeof val}))}}function maintain_this_binding(parent,orig,val){if(parent instanceof AST_Call&&parent.expression===orig){if(val instanceof AST_PropAccess||val instanceof AST_SymbolRef&&val.name==="eval"){return make_node(AST_Seq,orig,{car:make_node(AST_Number,orig,{value:0}),cdr:val})}}return val}function as_statement_array(thing){if(thing===null)return[];if(thing instanceof AST_BlockStatement)return thing.body;if(thing instanceof AST_EmptyStatement)return[];if(thing instanceof AST_Statement)return[thing];throw new Error("Can't convert thing to statement array")}function is_empty(thing){if(thing===null)return true;if(thing instanceof AST_EmptyStatement)return true;if(thing instanceof AST_BlockStatement)return thing.body.length==0;return false}function can_be_evicted_from_block(node){return!(node instanceof AST_DefClass||node instanceof AST_Let||node instanceof AST_Const)}function loop_body(x){if(x instanceof AST_Switch)return x;if(x instanceof AST_For||x instanceof AST_ForIn||x instanceof AST_DWLoop){return x.body instanceof AST_BlockStatement?x.body:x}return x}var readOnlyPrefix=makePredicate("! ~ + - void typeof");function statement_to_expression(stat){if(stat.body instanceof AST_UnaryPrefix&&readOnlyPrefix(stat.body.operator)){return stat.body.expression}else{return stat.body}}function is_iife_call(node){if(node instanceof AST_Call&&!(node instanceof AST_New)){return node.expression instanceof AST_Function||is_iife_call(node.expression)}return false}function tighten_body(statements,compressor){var CHANGED,max_iter=10;do{CHANGED=false;if(compressor.option("angular")){statements=process_for_angular(statements)}statements=eliminate_spurious_blocks(statements);if(compressor.option("dead_code")){statements=eliminate_dead_code(statements,compressor)}if(compressor.option("if_return")){statements=handle_if_return(statements,compressor)}if(compressor.sequences_limit>0){statements=sequencesize(statements,compressor)}if(compressor.option("join_vars")){statements=join_consecutive_vars(statements,compressor)}if(compressor.option("collapse_vars")){statements=collapse_single_use_vars(statements,compressor)}}while(CHANGED&&max_iter-- >0);return statements;function collapse_single_use_vars(statements,compressor){var self=compressor.self();var var_defs_removed=false;for(var stat_index=statements.length;--stat_index>=0;){var stat=statements[stat_index];if(stat instanceof AST_Definitions)continue;[stat,stat.body,stat.alternative,stat.bcatch,stat.bfinally].forEach(function(node){node&&node.body&&collapse_single_use_vars(node.body,compressor)});if(stat_index<=0)break;var prev_stat_index=stat_index-1;var prev_stat=statements[prev_stat_index];if(!(prev_stat instanceof AST_Definitions))continue;var var_defs=prev_stat.definitions;if(var_defs==null)continue;var var_names_seen={};var side_effects_encountered=false;var lvalues_encountered=false;var lvalues={};for(var var_defs_index=var_defs.length;--var_defs_index>=0;){var var_decl=var_defs[var_defs_index];if(var_decl.value==null)break;var var_name=var_decl.name.name;if(!var_name||!var_name.length)break;if(var_name in var_names_seen)break;var_names_seen[var_name]=true;var def=self.find_variable&&self.find_variable(var_name);if(!def||!def.references||def.references.length!==1||var_name=="arguments"){side_effects_encountered=true;continue}var ref=def.references[0];if(ref.scope.uses_eval||ref.scope.uses_with)break;if(var_decl.value.is_constant()){var ctt=new TreeTransformer(function(node){if(node===ref){var parent=ctt.parent();if(!(parent instanceof AST_ForIn&&parent.init===node)){return replace_var(node,parent,true)}}});stat.transform(ctt);continue}if(side_effects_encountered|=lvalues_encountered)continue;if(ref.scope.get_defun_scope()!==self){side_effects_encountered|=var_decl.value.has_side_effects(compressor);continue}var tw=new TreeWalker(function(node){if(node instanceof AST_SymbolRef&&is_lvalue(node,tw.parent())){lvalues[node.name]=lvalues_encountered=true}});var_decl.value.walk(tw);var unwind=false;var tt=new TreeTransformer(function preorder(node){if(unwind)return node;var parent=tt.parent();if(node instanceof AST_Lambda||node instanceof AST_Try||node instanceof AST_With||node instanceof AST_Case||node instanceof AST_IterationStatement||parent instanceof AST_If&&node!==parent.condition||parent instanceof AST_Conditional&&node!==parent.condition||parent instanceof AST_Binary&&(parent.operator=="&&"||parent.operator=="||")&&node===parent.right||parent instanceof AST_Switch&&node!==parent.expression){return side_effects_encountered=unwind=true,node}},function postorder(node){if(unwind)return node;if(node===ref)return unwind=true,replace_var(node,tt.parent(),false);if(side_effects_encountered|=node.has_side_effects(compressor))return unwind=true,node;if(lvalues_encountered&&node instanceof AST_SymbolRef&&node.name in lvalues){side_effects_encountered=true;return unwind=true,node}});stat.transform(tt)}}if(var_defs_removed)for(var i=statements.length;--i>=0;){if(statements.length>1&&statements[i]instanceof AST_EmptyStatement)statements.splice(i,1)}return statements;function is_lvalue(node,parent){return node instanceof AST_SymbolRef&&(parent instanceof AST_Assign&&node===parent.left||parent instanceof AST_Unary&&parent.expression===node&&(parent.operator=="++"||parent.operator=="--"))}function replace_var(node,parent,is_constant){if(is_lvalue(node,parent))return node;var value=maintain_this_binding(parent,node,var_decl.value);var_decl.value=null;var_defs.splice(var_defs_index,1);if(var_defs.length===0){statements[prev_stat_index]=make_node(AST_EmptyStatement,self);var_defs_removed=true}stat.reset_opt_flags(compressor);compressor.warn("Collapsing "+(is_constant?"constant":"variable")+" "+var_name+" [{file}:{line},{col}]",node.start);CHANGED=true;return value}}function process_for_angular(statements){function has_inject(comment){return/@ngInject/.test(comment.value)}function make_arguments_names_list(func){var foundDestructuring=false;return func.argnames.map(function(sym){if(sym instanceof AST_Destructuring){compressor.warn("Function with destructuring arguments marked with @ngInject [{file}:{line},{col}]",token);foundDestructuring=true}if(foundDestructuring){return null}return make_node(AST_String,sym,{value:sym.name})}).filter(function(name){return name!==null})}function make_array(orig,elements){return make_node(AST_Array,orig,{elements:elements})}function make_injector(func,name){return make_node(AST_SimpleStatement,func,{body:make_node(AST_Assign,func,{operator:"=",left:make_node(AST_Dot,name,{expression:make_node(AST_SymbolRef,name,name),property:"$inject"}),right:make_array(func,make_arguments_names_list(func))})})}function check_expression(body){if(body&&body.args){body.args.forEach(function(argument,index,array){var comments=argument.start.comments_before;if(argument instanceof AST_Lambda&&comments.length&&has_inject(comments[0])){array[index]=make_array(argument,make_arguments_names_list(argument).concat(argument))}});if(body.expression&&body.expression.expression){check_expression(body.expression.expression)}}}return statements.reduce(function(a,stat){a.push(stat);if(stat.body&&stat.body.args){check_expression(stat.body)}else{var token=stat.start;var comments=token.comments_before;if(comments&&comments.length>0){var last=comments.pop();if(has_inject(last)){if(stat instanceof AST_Defun){a.push(make_injector(stat,stat.name))}else if(stat instanceof AST_Definitions){stat.definitions.forEach(function(def){if(def.value&&def.value instanceof AST_Lambda){a.push(make_injector(def.value,def.name))}})}else{compressor.warn("Unknown statement marked with @ngInject [{file}:{line},{col}]",token)}}}}return a},[])}function eliminate_spurious_blocks(statements){var seen_dirs=[];return statements.reduce(function(a,stat){if(stat instanceof AST_BlockStatement&&all(stat.body,can_be_evicted_from_block)){CHANGED=true;a.push.apply(a,eliminate_spurious_blocks(stat.body))}else if(stat instanceof AST_EmptyStatement){CHANGED=true}else if(stat instanceof AST_Directive){if(seen_dirs.indexOf(stat.value)<0){a.push(stat);seen_dirs.push(stat.value)}else{CHANGED=true}}else{a.push(stat)}return a},[])}function handle_if_return(statements,compressor){var self=compressor.self();var multiple_if_returns=has_multiple_if_returns(statements);var in_lambda=self instanceof AST_Lambda;var ret=[];loop:for(var i=statements.length;--i>=0;){var stat=statements[i];switch(true){case in_lambda&&stat instanceof AST_Return&&!stat.value&&ret.length==0:CHANGED=true;continue loop;case stat instanceof AST_If:if(stat.body instanceof AST_Return){if((in_lambda&&ret.length==0||ret[0]instanceof AST_Return&&!ret[0].value)&&!stat.body.value&&!stat.alternative){CHANGED=true;var cond=make_node(AST_SimpleStatement,stat.condition,{body:stat.condition});ret.unshift(cond);continue loop}if(ret[0]instanceof AST_Return&&stat.body.value&&ret[0].value&&!stat.alternative){CHANGED=true;stat=stat.clone();stat.alternative=ret[0];ret[0]=stat.transform(compressor);continue loop}if(multiple_if_returns&&(ret.length==0||ret[0]instanceof AST_Return)&&stat.body.value&&!stat.alternative&&in_lambda){CHANGED=true;stat=stat.clone();stat.alternative=ret[0]||make_node(AST_Return,stat,{value:make_node(AST_Undefined,stat)});ret[0]=stat.transform(compressor);continue loop}if(!stat.body.value&&in_lambda){CHANGED=true;stat=stat.clone();stat.condition=stat.condition.negate(compressor);var body=as_statement_array(stat.alternative).concat(ret);var funs=extract_functions_from_statement_array(body);stat.body=make_node(AST_BlockStatement,stat,{body:body});stat.alternative=null;ret=funs.concat([stat.transform(compressor)]);continue loop}if(compressor.option("sequences")&&i>0&&statements[i-1]instanceof AST_If&&statements[i-1].body instanceof AST_Return&&ret.length==1&&in_lambda&&ret[0]instanceof AST_SimpleStatement&&!stat.alternative){CHANGED=true;ret.push(make_node(AST_Return,ret[0],{value:make_node(AST_Undefined,ret[0])}).transform(compressor));ret.unshift(stat);continue loop}}var ab=aborts(stat.body);var lct=ab instanceof AST_LoopControl?compressor.loopcontrol_target(ab.label):null;if(ab&&(ab instanceof AST_Return&&!ab.value&&in_lambda||ab instanceof AST_Continue&&self===loop_body(lct)||ab instanceof AST_Break&&lct instanceof AST_BlockStatement&&self===lct)){if(ab.label){remove(ab.label.thedef.references,ab)}CHANGED=true;var body=as_statement_array(stat.body).slice(0,-1);stat=stat.clone();stat.condition=stat.condition.negate(compressor);stat.body=make_node(AST_BlockStatement,stat,{body:as_statement_array(stat.alternative).concat(ret)});stat.alternative=make_node(AST_BlockStatement,stat,{body:body});ret=[stat.transform(compressor)];continue loop}var ab=aborts(stat.alternative);var lct=ab instanceof AST_LoopControl?compressor.loopcontrol_target(ab.label):null;if(ab&&(ab instanceof AST_Return&&!ab.value&&in_lambda||ab instanceof AST_Continue&&self===loop_body(lct)||ab instanceof AST_Break&&lct instanceof AST_BlockStatement&&self===lct)){if(ab.label){remove(ab.label.thedef.references,ab)}CHANGED=true;stat=stat.clone();stat.body=make_node(AST_BlockStatement,stat.body,{body:as_statement_array(stat.body).concat(ret)});stat.alternative=make_node(AST_BlockStatement,stat.alternative,{body:as_statement_array(stat.alternative).slice(0,-1)});ret=[stat.transform(compressor)];continue loop}ret.unshift(stat);break;default:ret.unshift(stat);break}}return ret;function has_multiple_if_returns(statements){var n=0;for(var i=statements.length;--i>=0;){var stat=statements[i];if(stat instanceof AST_If&&stat.body instanceof AST_Return){if(++n>1)return true}}return false}}function eliminate_dead_code(statements,compressor){var has_quit=false;var orig=statements.length;var self=compressor.self();statements=statements.reduce(function(a,stat){if(has_quit){extract_declarations_from_unreachable_code(compressor,stat,a)}else{if(stat instanceof AST_LoopControl){var lct=compressor.loopcontrol_target(stat.label);if(stat instanceof AST_Break&&lct instanceof AST_BlockStatement&&loop_body(lct)===self||stat instanceof AST_Continue&&loop_body(lct)===self){if(stat.label){remove(stat.label.thedef.references,stat)}}else{a.push(stat)}}else{a.push(stat)}if(aborts(stat))has_quit=true}return a},[]);CHANGED=statements.length!=orig;return statements}function sequencesize(statements,compressor){if(statements.length<2)return statements;var seq=[],ret=[];function push_seq(){seq=AST_Seq.from_array(seq);if(seq)ret.push(make_node(AST_SimpleStatement,seq,{body:seq}));seq=[]}statements.forEach(function(stat){if(stat instanceof AST_SimpleStatement){if(seqLength(seq)>=compressor.sequences_limit){push_seq()}seq.push(seq.length>0?statement_to_expression(stat):stat.body)}else{push_seq();ret.push(stat)}});push_seq();ret=sequencesize_2(ret,compressor);CHANGED=ret.length!=statements.length;return ret}function seqLength(a){for(var len=0,i=0;i<a.length;++i){var stat=a[i];if(stat instanceof AST_Seq){len+=stat.len()}else{len++}}return len}function sequencesize_2(statements,compressor){function cons_seq(right){ret.pop();var left=prev.body;if(left instanceof AST_Seq){left.add(right)}else{left=AST_Seq.cons(left,right)}return left.transform(compressor)}var ret=[],prev=null;statements.forEach(function(stat){if(prev){if(stat instanceof AST_For){var opera={};try{prev.body.walk(new TreeWalker(function(node){if(node instanceof AST_Binary&&node.operator=="in")throw opera}));if(stat.init&&!(stat.init instanceof AST_Definitions)){stat.init=cons_seq(stat.init)}else if(!stat.init){stat.init=statement_to_expression(prev);ret.pop()}}catch(ex){if(ex!==opera)throw ex}}else if(stat instanceof AST_If){stat.condition=cons_seq(stat.condition)}else if(stat instanceof AST_With){stat.expression=cons_seq(stat.expression)}else if(stat instanceof AST_Exit&&stat.value){stat.value=cons_seq(stat.value)}else if(stat instanceof AST_Exit){stat.value=cons_seq(make_node(AST_Undefined,stat))}else if(stat instanceof AST_Switch){stat.expression=cons_seq(stat.expression)}}ret.push(stat);prev=stat instanceof AST_SimpleStatement?stat:null});return ret}function join_consecutive_vars(statements,compressor){var prev=null;return statements.reduce(function(a,stat){if(stat instanceof AST_Definitions&&prev&&prev.TYPE==stat.TYPE){prev.definitions=prev.definitions.concat(stat.definitions);CHANGED=true}else if(stat instanceof AST_For&&prev instanceof AST_Var&&(!stat.init||stat.init.TYPE==prev.TYPE)){CHANGED=true;a.pop();if(stat.init){stat.init.definitions=prev.definitions.concat(stat.init.definitions)}else{stat.init=prev}a.push(stat);prev=stat}else{prev=stat;a.push(stat)}return a},[])}}function extract_functions_from_statement_array(statements){var funs=[];for(var i=statements.length-1;i>=0;--i){var stat=statements[i];if(stat instanceof AST_Defun){statements.splice(i,1);funs.unshift(stat)}}return funs}function extract_declarations_from_unreachable_code(compressor,stat,target){if(!(stat instanceof AST_Defun)){compressor.warn("Dropping unreachable code [{file}:{line},{col}]",stat.start)}stat.walk(new TreeWalker(function(node){if(node instanceof AST_Var){compressor.warn("Declarations in unreachable code! [{file}:{line},{col}]",node.start);node.remove_initializers();target.push(node);return true}if(node instanceof AST_Defun){target.push(node);return true}if(node instanceof AST_Scope){return true}}))}(function(def){var unary_bool=["!","delete"];var binary_bool=["in","instanceof","==","!=","===","!==","<","<=",">=",">"];def(AST_Node,return_false);def(AST_UnaryPrefix,function(){return member(this.operator,unary_bool)});def(AST_Binary,function(){return member(this.operator,binary_bool)||(this.operator=="&&"||this.operator=="||")&&this.left.is_boolean()&&this.right.is_boolean()});def(AST_Conditional,function(){return this.consequent.is_boolean()&&this.alternative.is_boolean()});def(AST_Assign,function(){return this.operator=="="&&this.right.is_boolean()});def(AST_Seq,function(){return this.cdr.is_boolean()});def(AST_True,return_true);def(AST_False,return_true)})(function(node,func){node.DEFMETHOD("is_boolean",func)});(function(def){def(AST_Node,function(){return false});def(AST_String,function(){return true});def(AST_TemplateString,function(){return this.segments.length===1});def(AST_UnaryPrefix,function(){return this.operator=="typeof"});def(AST_Binary,function(compressor){return this.operator=="+"&&(this.left.is_string(compressor)||this.right.is_string(compressor))});def(AST_Assign,function(compressor){return(this.operator=="="||this.operator=="+=")&&this.right.is_string(compressor)});def(AST_Seq,function(compressor){return this.cdr.is_string(compressor)});def(AST_Conditional,function(compressor){return this.consequent.is_string(compressor)&&this.alternative.is_string(compressor)})})(function(node,func){node.DEFMETHOD("is_string",func)});function isLHS(node,parent){return parent instanceof AST_Unary&&(parent.operator==="++"||parent.operator==="--")||parent instanceof AST_Assign&&parent.left===node}(function(def){AST_Node.DEFMETHOD("resolve_defines",function(compressor){if(!compressor.option("global_defs"))return;var def=this._find_defs(compressor,"");if(def){var node,parent=this,level=0;do{node=parent;parent=compressor.parent(level++)}while(parent instanceof AST_PropAccess&&parent.expression===node);if(isLHS(node,parent)){compressor.warn("global_defs "+this.print_to_string()+" redefined [{file}:{line},{col}]",this.start)}else{return def}}});function to_node(compressor,value,orig){if(value instanceof AST_Node)return make_node(value.CTOR,orig,value);if(Array.isArray(value))return make_node(AST_Array,orig,{elements:value.map(function(value){return to_node(compressor,value,orig)})});if(value&&typeof value=="object"){var props=[];for(var key in value){props.push(make_node(AST_ObjectKeyVal,orig,{key:key,value:to_node(compressor,value[key],orig)}))}return make_node(AST_Object,orig,{properties:props})}return make_node_from_constant(compressor,value,orig)}def(AST_Node,noop);def(AST_Dot,function(compressor,suffix){return this.expression._find_defs(compressor,suffix+"."+this.property)});def(AST_SymbolRef,function(compressor,suffix){if(!this.global())return;var name;var defines=compressor.option("global_defs");if(defines&&HOP(defines,name=this.name+suffix)){var node=to_node(compressor,defines[name],this);var top=compressor.find_parent(AST_Toplevel);node.walk(new TreeWalker(function(node){if(node instanceof AST_SymbolRef){node.scope=top;node.thedef=top.def_global(node)}}));return node}})})(function(node,func){node.DEFMETHOD("_find_defs",func)});function best_of(ast1,ast2){return ast1.print_to_string().length>ast2.print_to_string().length?ast2:ast1}function best_of_statement(ast1,ast2){return best_of(make_node(AST_SimpleStatement,ast1,{body:ast1}),make_node(AST_SimpleStatement,ast2,{body:ast2})).body}(function(def){AST_Node.DEFMETHOD("evaluate",function(compressor){if(!compressor.option("evaluate"))return[this];var val;try{val=this._eval(compressor)}catch(ex){if(ex!==def)throw ex;return[this]}var node;try{node=make_node_from_constant(compressor,val,this)}catch(ex){return[this]}return[best_of(node,this),val]});var unaryPrefix=makePredicate("! ~ - +");AST_Node.DEFMETHOD("is_constant",function(){if(this instanceof AST_Constant){return!(this instanceof AST_RegExp)}else{return this instanceof AST_UnaryPrefix&&this.expression instanceof AST_Constant&&unaryPrefix(this.operator)}});AST_Node.DEFMETHOD("constant_value",function(compressor){if(this instanceof AST_Constant&&!(this instanceof AST_RegExp)){return this.value}if(this instanceof AST_UnaryPrefix&&this.expression instanceof AST_Constant)switch(this.operator){case"!":return!this.expression.value;case"~":return~this.expression.value;case"-":return-this.expression.value;case"+":return+this.expression.value;default:throw new Error(string_template("Cannot evaluate unary expression {value}",{value:this.print_to_string()}))}var result=this.evaluate(compressor);if(result.length>1){return result[1]}throw new Error(string_template("Cannot evaluate constant [{file}:{line},{col}]",this.start))});def(AST_Statement,function(){throw new Error(string_template("Cannot evaluate a statement [{file}:{line},{col}]",this.start))});def(AST_Accessor,function(){throw def});def(AST_Function,function(){throw def});def(AST_Arrow,function(){throw def});def(AST_Class,function(){throw def});function ev(node,compressor){if(!compressor)throw new Error("Compressor must be passed");return node._eval(compressor)}def(AST_Node,function(){throw def});def(AST_Constant,function(){return this.getValue()});def(AST_TemplateString,function(){if(this.segments.length!==1)throw def;return this.segments[0].value});def(AST_Array,function(compressor){if(compressor.option("unsafe")){return this.elements.map(function(element){return ev(element,compressor)})}throw def});def(AST_Object,function(compressor){if(compressor.option("unsafe")){var val={};for(var i=0,len=this.properties.length;i<len;i++){var prop=this.properties[i];var key=prop.key;if(key instanceof AST_Symbol){key=key.name}else if(key instanceof AST_Node){key=ev(key,compressor)}if(typeof Object.prototype[key]==="function"){throw def}val[key]=ev(prop.value,compressor)}return val}throw def});def(AST_UnaryPrefix,function(compressor){var e=this.expression;switch(this.operator){case"!":return!ev(e,compressor);case"typeof":if(e instanceof AST_Function||e instanceof AST_Arrow)return typeof function(){};e=ev(e,compressor);if(e instanceof RegExp)throw def;return typeof e;case"void":return void ev(e,compressor);case"~":return~ev(e,compressor);case"-":return-ev(e,compressor);case"+":return+ev(e,compressor)}throw def});def(AST_Binary,function(c){var left=this.left,right=this.right,result;switch(this.operator){case"&&":result=ev(left,c)&&ev(right,c);break;case"||":result=ev(left,c)||ev(right,c);break;case"|":result=ev(left,c)|ev(right,c);break;case"&":result=ev(left,c)&ev(right,c);break;case"^":result=ev(left,c)^ev(right,c);break;case"+":result=ev(left,c)+ev(right,c);break;case"*":result=ev(left,c)*ev(right,c);break;case"**":result=Math.pow(ev(left,c),ev(right,c));break;case"/":result=ev(left,c)/ev(right,c);break;case"%":result=ev(left,c)%ev(right,c);break;case"-":result=ev(left,c)-ev(right,c);break;case"<<":result=ev(left,c)<<ev(right,c);break;case">>":result=ev(left,c)>>ev(right,c);break;case">>>":result=ev(left,c)>>>ev(right,c);break;case"==":result=ev(left,c)==ev(right,c);break;case"===":result=ev(left,c)===ev(right,c);break;case"!=":result=ev(left,c)!=ev(right,c);break;case"!==":result=ev(left,c)!==ev(right,c);break;case"<":result=ev(left,c)<ev(right,c);break;case"<=":result=ev(left,c)<=ev(right,c);break;case">":result=ev(left,c)>ev(right,c);break;case">=":result=ev(left,c)>=ev(right,c);break;default:throw def}if(isNaN(result)&&c.find_parent(AST_With)){throw def}return result});def(AST_Conditional,function(compressor){return ev(this.condition,compressor)?ev(this.consequent,compressor):ev(this.alternative,compressor)});def(AST_SymbolRef,function(compressor){if(this._evaluating)throw def;this._evaluating=true;try{var d=this.definition();if(compressor.option("reduce_vars")&&d.fixed){if(compressor.option("unsafe")){if(!HOP(d.fixed,"_evaluated")){d.fixed._evaluated=ev(d.fixed,compressor)}return d.fixed._evaluated}return ev(d.fixed,compressor)}}finally{this._evaluating=false}throw def});def(AST_PropAccess,function(compressor){if(compressor.option("unsafe")){var key=this.property;if(key instanceof AST_Node){key=ev(key,compressor)}var val=ev(this.expression,compressor);if(val&&HOP(val,key)){return val[key]}}throw def})})(function(node,func){node.DEFMETHOD("_eval",func)});(function(def){function basic_negation(exp){return make_node(AST_UnaryPrefix,exp,{operator:"!",expression:exp})}function best(orig,alt,first_in_statement){var negated=basic_negation(orig);if(first_in_statement){var stat=make_node(AST_SimpleStatement,alt,{body:alt});return best_of(negated,stat)===stat?alt:negated}return best_of(negated,alt)}def(AST_Node,function(){return basic_negation(this)});def(AST_Statement,function(){throw new Error("Cannot negate a statement")});def(AST_Function,function(){return basic_negation(this)});def(AST_UnaryPrefix,function(){if(this.operator=="!")return this.expression;return basic_negation(this)});def(AST_Seq,function(compressor){var self=this.clone();self.cdr=self.cdr.negate(compressor);return self});def(AST_Conditional,function(compressor,first_in_statement){var self=this.clone();self.consequent=self.consequent.negate(compressor);self.alternative=self.alternative.negate(compressor);return best(this,self,first_in_statement)});def(AST_Binary,function(compressor,first_in_statement){var self=this.clone(),op=this.operator;if(compressor.option("unsafe_comps")){switch(op){case"<=":self.operator=">";return self;case"<":self.operator=">=";return self;case">=":self.operator="<";return self;case">":self.operator="<=";return self}}switch(op){case"==":self.operator="!=";return self;case"!=":self.operator="==";return self;case"===":self.operator="!==";return self;case"!==":self.operator="===";return self;case"&&":self.operator="||";self.left=self.left.negate(compressor,first_in_statement);self.right=self.right.negate(compressor);return best(this,self,first_in_statement);case"||":self.operator="&&";self.left=self.left.negate(compressor,first_in_statement);self.right=self.right.negate(compressor);return best(this,self,first_in_statement)}return basic_negation(this)})})(function(node,func){node.DEFMETHOD("negate",function(compressor,first_in_statement){return func.call(this,compressor,first_in_statement)})});AST_Call.DEFMETHOD("has_pure_annotation",function(compressor){
-if(!compressor.option("side_effects"))return false;if(this.pure!==undefined)return this.pure;var pure=false;var comments,last_comment;if(this.start&&(comments=this.start.comments_before)&&comments.length&&/[@#]__PURE__/.test((last_comment=comments[comments.length-1]).value)){pure=last_comment}return this.pure=pure});(function(def){def(AST_Node,return_true);def(AST_EmptyStatement,return_false);def(AST_Constant,return_false);def(AST_This,return_false);def(AST_Call,function(compressor){if(!this.has_pure_annotation(compressor)&&compressor.pure_funcs(this))return true;for(var i=this.args.length;--i>=0;){if(this.args[i].has_side_effects(compressor))return true}return false});def(AST_Block,function(compressor){for(var i=this.body.length;--i>=0;){if(this.body[i].has_side_effects(compressor))return true}return false});def(AST_SimpleStatement,function(compressor){return this.body.has_side_effects(compressor)});def(AST_Defun,return_true);def(AST_Function,return_false);def(AST_Class,return_false);def(AST_DefClass,return_true);def(AST_Binary,function(compressor){return this.left.has_side_effects(compressor)||this.right.has_side_effects(compressor)});def(AST_Assign,return_true);def(AST_Conditional,function(compressor){return this.condition.has_side_effects(compressor)||this.consequent.has_side_effects(compressor)||this.alternative.has_side_effects(compressor)});def(AST_Unary,function(compressor){return member(this.operator,["delete","++","--"])||this.expression.has_side_effects(compressor)});def(AST_SymbolRef,function(compressor){return this.global()&&this.undeclared()});def(AST_Object,function(compressor){for(var i=this.properties.length;--i>=0;)if(this.properties[i].has_side_effects(compressor))return true;return false});def(AST_ObjectProperty,function(compressor){if(this.key instanceof AST_ObjectKeyVal&&this.key.has_side_effects(compressor))return true;return this.value.has_side_effects(compressor)});def(AST_Array,function(compressor){for(var i=this.elements.length;--i>=0;)if(this.elements[i].has_side_effects(compressor))return true;return false});def(AST_Dot,function(compressor){if(!compressor.option("pure_getters"))return true;return this.expression.has_side_effects(compressor)});def(AST_Sub,function(compressor){if(!compressor.option("pure_getters"))return true;return this.expression.has_side_effects(compressor)||this.property.has_side_effects(compressor)});def(AST_PropAccess,function(compressor){return!compressor.option("pure_getters")});def(AST_Seq,function(compressor){return this.car.has_side_effects(compressor)||this.cdr.has_side_effects(compressor)})})(function(node,func){node.DEFMETHOD("has_side_effects",func)});function aborts(thing){return thing&&thing.aborts()}(function(def){def(AST_Statement,function(){return null});def(AST_Jump,function(){return this});function block_aborts(){var n=this.body.length;return n>0&&aborts(this.body[n-1])}def(AST_Import,function(){return null});def(AST_BlockStatement,block_aborts);def(AST_SwitchBranch,block_aborts);def(AST_If,function(){return this.alternative&&aborts(this.body)&&aborts(this.alternative)&&this})})(function(node,func){node.DEFMETHOD("aborts",func)});OPT(AST_Directive,function(self,compressor){if(compressor.has_directive(self.value)==="up"){return make_node(AST_EmptyStatement,self)}return self});OPT(AST_Debugger,function(self,compressor){if(compressor.option("drop_debugger"))return make_node(AST_EmptyStatement,self);return self});OPT(AST_LabeledStatement,function(self,compressor){if(self.body instanceof AST_Break&&compressor.loopcontrol_target(self.body.label)===self.body){return make_node(AST_EmptyStatement,self)}return self.label.references.length==0?self.body:self});OPT(AST_Block,function(self,compressor){if(self.body instanceof AST_Node){return self}self.body=tighten_body(self.body,compressor);return self});OPT(AST_BlockStatement,function(self,compressor){self.body=tighten_body(self.body,compressor);switch(self.body.length){case 1:if(can_be_evicted_from_block(self.body[0])){return self.body[0]}break;case 0:return make_node(AST_EmptyStatement,self)}return self});AST_Scope.DEFMETHOD("drop_unused",function(compressor){var self=this;if(compressor.has_directive("use asm"))return self;var toplevel=compressor.option("toplevel");if(compressor.option("unused")&&!self.uses_eval&&!self.uses_with){var assign_as_unused=!/keep_assign/.test(compressor.option("unused"));var drop_funcs=/funcs/.test(toplevel);var drop_vars=/vars/.test(toplevel);if(!(self instanceof AST_Toplevel)||toplevel==true){drop_funcs=drop_vars=true}var in_use=[];var in_use_ids=Object.create(null);if(self instanceof AST_Toplevel&&compressor.top_retain){self.variables.each(function(def){if(compressor.top_retain(def)&&!(def.id in in_use_ids)){in_use_ids[def.id]=true;in_use.push(def)}})}var initializations=new Dictionary;var destructuring_value=null;var in_definition=false;var scope=this;var tw=new TreeWalker(function(node,descend){if(node!==self){if(node instanceof AST_Defun||node instanceof AST_DefClass){if(!drop_funcs&&scope===self){var node_def=node.name.definition();if(node_def.global&&!(node_def.id in in_use_ids)){in_use_ids[node_def.id]=true;in_use.push(node_def)}}initializations.add(node.name.name,node);return true}if(node instanceof AST_Definitions&&scope===self){node.definitions.forEach(function(def){if(!drop_vars){var node_def=def.name.definition();if(node_def.global&&!(node_def.id in in_use_ids)){in_use_ids[node_def.id]=true;in_use.push(node_def)}}if(def.value){if(def.is_destructuring()){var destructuring_cache=destructuring_value;destructuring_value=def.value;in_definition=true;def.walk(tw);in_definition=false;destructuring_value=destructuring_cache}else{initializations.add(def.name.name,def.value)}if(def.value.has_side_effects(compressor)){def.value.walk(tw)}}});return true}if(assign_as_unused&&node instanceof AST_Assign&&node.operator=="="&&node.left instanceof AST_SymbolRef&&scope===self){node.right.walk(tw);return true}if(node instanceof AST_SymbolRef){var node_def=node.definition();if(!(node_def.id in in_use_ids)){in_use_ids[node_def.id]=true;in_use.push(node_def)}return true}if(node instanceof AST_Scope){var save_scope=scope;scope=node;descend();scope=save_scope;return true}if(node instanceof AST_Destructuring){if(!in_definition){return true}for(var i=0;i<node.names.length;i++){if(node.names[i]instanceof AST_Destructuring){node.names[i].walk(tw)}else if(node.names[i]instanceof AST_Expansion){if(node.names[i].expression instanceof AST_Symbol){initializations.add(node.names[i].expression.name,destructuring_value)}else{throw new Error(string_template("Can't handle expansion of type: {type}",{type:Object.getPrototypeOf(node.names[i].expression).TYPE}))}}else if(node.names[i]instanceof AST_Hole){continue}else if(node.names[i]instanceof AST_ObjectKeyVal&&typeof node.names[i].key==="string"){initializations.add(node.names[i].key,destructuring_value)}else if(node.names[i]instanceof AST_Symbol){initializations.add(node.names[i].name,destructuring_value)}else{throw new Error(string_template("Unknown destructuring element of type: {type}",{type:Object.getPrototypeOf(node.names[i]).TYPE}))}}return true}}});self.walk(tw);for(var i=0;i<in_use.length;++i){in_use[i].orig.forEach(function(decl){var init=initializations.get(decl.name);if(init)init.forEach(function(init){var tw=new TreeWalker(function(node){if(node instanceof AST_SymbolRef){var node_def=node.definition();if(!(node_def.id in in_use_ids)){in_use_ids[node_def.id]=true;in_use.push(node_def)}}});init.walk(tw)})})}var tt=new TreeTransformer(function before(node,descend,in_list){if(node instanceof AST_Function&&node.name&&!compressor.option("keep_fnames")&&!(node.name.definition().id in in_use_ids)){node.name=null}if(node instanceof AST_Lambda&&!(node instanceof AST_Accessor)){if(!compressor.option("keep_fargs")){for(var a=node.argnames,i=a.length;--i>=0;){if(a[i]instanceof AST_Destructuring){break}else{var sym=a[i];if(sym instanceof AST_Expansion){sym=sym.symbol}if(!(sym.definition().id in in_use_ids)){a.pop();compressor.warn("Dropping unused function argument {name} [{file}:{line},{col}]",{name:sym.name,file:sym.start.file,line:sym.start.line,col:sym.start.col})}else break}}}}if((node instanceof AST_Defun||node instanceof AST_DefClass)&&node!==self){var keep=node.name.definition().id in in_use_ids||!drop_funcs&&node.name.definition().global;if(!keep){compressor.warn("Dropping unused function {name} [{file}:{line},{col}]",{name:node.name.name,file:node.name.start.file,line:node.name.start.line,col:node.name.start.col});return make_node(AST_EmptyStatement,node)}return node}if(node instanceof AST_Definitions&&!(tt.parent()instanceof AST_ForIn)){var def=node.definitions.filter(function(def){if(def.is_destructuring())return true;if(def.name.definition().id in in_use_ids)return true;if(!drop_vars&&def.name.definition().global)return true;var w={name:def.name.name,file:def.name.start.file,line:def.name.start.line,col:def.name.start.col};if(def.value&&(def._unused_side_effects=def.value.drop_side_effect_free(compressor))){compressor.warn("Side effects in initialization of unused variable {name} [{file}:{line},{col}]",w);return true}compressor.warn("Dropping unused variable {name} [{file}:{line},{col}]",w);return false});def=mergeSort(def,function(a,b){if(!a.value&&b.value)return-1;if(!b.value&&a.value)return 1;return 0});var side_effects=[];for(var i=0;i<def.length;){var x=def[i];if(x._unused_side_effects){side_effects.push(x._unused_side_effects);def.splice(i,1)}else{if(side_effects.length>0){side_effects.push(x.value);x.value=AST_Seq.from_array(side_effects);side_effects=[]}++i}}if(side_effects.length>0){side_effects=make_node(AST_BlockStatement,node,{body:[make_node(AST_SimpleStatement,node,{body:AST_Seq.from_array(side_effects)})]})}else{side_effects=null}if(def.length==0&&!side_effects){return make_node(AST_EmptyStatement,node)}if(def.length==0){return in_list?MAP.splice(side_effects.body):side_effects}node.definitions=def;if(side_effects){side_effects.body.unshift(node);return in_list?MAP.splice(side_effects.body):side_effects}return node}if(assign_as_unused){var n=node;while(n instanceof AST_Assign&&n.operator=="="&&n.left instanceof AST_SymbolRef){var def=n.left.definition();if(def.id in in_use_ids||!drop_vars&&def.global||self.variables.get(def.name)!==def)break;n=n.right}if(n!==node)return n}if(node instanceof AST_For){descend(node,this);if(node.init instanceof AST_BlockStatement){var body=node.init.body.slice(0,-1);node.init=node.init.body.slice(-1)[0].body;body.push(node);return in_list?MAP.splice(body):make_node(AST_BlockStatement,node,{body:body})}}if(node instanceof AST_BlockStatement){descend(node,this);if(in_list&&all(node.body,can_be_evicted_from_block)){return MAP.splice(node.body)}}if(node instanceof AST_Scope&&node!==self)return node});self.transform(tt)}});AST_Scope.DEFMETHOD("hoist_declarations",function(compressor){var self=this;if(compressor.has_directive("use asm"))return self;if(!Array.isArray(self.body))return self;var hoist_funs=compressor.option("hoist_funs");var hoist_vars=compressor.option("hoist_vars");if(hoist_funs||hoist_vars){var dirs=[];var hoisted=[];var vars=new Dictionary,vars_found=0,var_decl=0;self.walk(new TreeWalker(function(node){if(node instanceof AST_Scope&&node!==self)return true;if(node instanceof AST_Var){++var_decl;return true}}));hoist_vars=hoist_vars&&var_decl>1;var tt=new TreeTransformer(function before(node){if(node!==self){if(node instanceof AST_Directive){dirs.push(node);return make_node(AST_EmptyStatement,node)}if(node instanceof AST_Defun&&hoist_funs){hoisted.push(node);return make_node(AST_EmptyStatement,node)}if(node instanceof AST_Var&&hoist_vars){node.definitions.forEach(function(def){if(def.is_destructuring()){return}vars.set(def.name.name,def);++vars_found});var seq=node.to_assignments();var p=tt.parent();if(p instanceof AST_ForIn&&p.init===node){if(seq==null){var def=node.definitions[0].name;return make_node(AST_SymbolRef,def,def)}return seq}if(p instanceof AST_For&&p.init===node){return seq}if(!seq)return make_node(AST_EmptyStatement,node);return make_node(AST_SimpleStatement,node,{body:seq})}if(node instanceof AST_Scope)return node}});self=self.transform(tt);if(vars_found>0){var defs=[];vars.each(function(def,name){if(self instanceof AST_Lambda&&find_if(function(x){return x.name==def.name.name},self.args_as_names())){vars.del(name)}else{def=def.clone();def.value=null;defs.push(def);vars.set(name,def)}});if(defs.length>0){for(var i=0;i<self.body.length;){if(self.body[i]instanceof AST_SimpleStatement){var expr=self.body[i].body,sym,assign;if(expr instanceof AST_Assign&&expr.operator=="="&&(sym=expr.left)instanceof AST_Symbol&&vars.has(sym.name)){var def=vars.get(sym.name);if(def.value)break;def.value=expr.right;remove(defs,def);defs.push(def);self.body.splice(i,1);continue}if(expr instanceof AST_Seq&&(assign=expr.car)instanceof AST_Assign&&assign.operator=="="&&(sym=assign.left)instanceof AST_Symbol&&vars.has(sym.name)){var def=vars.get(sym.name);if(def.value)break;def.value=assign.right;remove(defs,def);defs.push(def);self.body[i].body=expr.cdr;continue}}if(self.body[i]instanceof AST_EmptyStatement){self.body.splice(i,1);continue}if(self.body[i]instanceof AST_BlockStatement){var tmp=[i,1].concat(self.body[i].body);self.body.splice.apply(self.body,tmp);continue}break}defs=make_node(AST_Var,self,{definitions:defs});hoisted.push(defs)}}self.body=dirs.concat(hoisted,self.body)}return self});(function(def){function return_this(){return this}function return_null(){return null}function trim(nodes,compressor,first_in_statement){var ret=[],changed=false;for(var i=0,len=nodes.length;i<len;i++){var node=nodes[i].drop_side_effect_free(compressor,first_in_statement);changed|=node!==nodes[i];if(node){ret.push(node);first_in_statement=false}}return changed?ret.length?ret:null:nodes}def(AST_Node,return_this);def(AST_Constant,return_null);def(AST_This,return_null);def(AST_Call,function(compressor,first_in_statement){if(!this.has_pure_annotation(compressor)&&compressor.pure_funcs(this))return this;if(this.pure){compressor.warn("Dropping __PURE__ call [{file}:{line},{col}]",this.start);this.pure.value=this.pure.value.replace(/[@#]__PURE__/g," ")}var args=trim(this.args,compressor,first_in_statement);return args&&AST_Seq.from_array(args)});def(AST_Function,return_null);def(AST_Binary,function(compressor,first_in_statement){var right=this.right.drop_side_effect_free(compressor);if(!right)return this.left.drop_side_effect_free(compressor,first_in_statement);switch(this.operator){case"&&":case"||":var node=this.clone();node.right=right;return node;default:var left=this.left.drop_side_effect_free(compressor,first_in_statement);if(!left)return this.right.drop_side_effect_free(compressor,first_in_statement);return make_node(AST_Seq,this,{car:left,cdr:right})}});def(AST_Assign,return_this);def(AST_Conditional,function(compressor){var consequent=this.consequent.drop_side_effect_free(compressor);var alternative=this.alternative.drop_side_effect_free(compressor);if(consequent===this.consequent&&alternative===this.alternative)return this;if(!consequent)return alternative?make_node(AST_Binary,this,{operator:"||",left:this.condition,right:alternative}):this.condition.drop_side_effect_free(compressor);if(!alternative)return make_node(AST_Binary,this,{operator:"&&",left:this.condition,right:consequent});var node=this.clone();node.consequent=consequent;node.alternative=alternative;return node});def(AST_Unary,function(compressor,first_in_statement){switch(this.operator){case"delete":case"++":case"--":return this;case"typeof":if(this.expression instanceof AST_SymbolRef)return null;default:var expression=this.expression.drop_side_effect_free(compressor,first_in_statement);if(first_in_statement&&this instanceof AST_UnaryPrefix&&is_iife_call(expression)){if(expression===this.expression&&this.operator.length===1)return this;return make_node(AST_UnaryPrefix,this,{operator:this.operator.length===1?this.operator:"!",expression:expression})}return expression}});def(AST_SymbolRef,function(){return this.undeclared()?this:null});def(AST_Object,function(compressor,first_in_statement){var values=trim(this.properties,compressor,first_in_statement);return values&&AST_Seq.from_array(values)});def(AST_ObjectProperty,function(compressor,first_in_statement){return this.value.drop_side_effect_free(compressor,first_in_statement)});def(AST_Array,function(compressor,first_in_statement){var values=trim(this.elements,compressor,first_in_statement);return values&&AST_Seq.from_array(values)});def(AST_Dot,function(compressor,first_in_statement){if(!compressor.option("pure_getters"))return this;return this.expression.drop_side_effect_free(compressor,first_in_statement)});def(AST_Sub,function(compressor,first_in_statement){if(!compressor.option("pure_getters"))return this;var expression=this.expression.drop_side_effect_free(compressor,first_in_statement);if(!expression)return this.property.drop_side_effect_free(compressor,first_in_statement);var property=this.property.drop_side_effect_free(compressor);if(!property)return expression;return make_node(AST_Seq,this,{car:expression,cdr:property})});def(AST_Seq,function(compressor){var cdr=this.cdr.drop_side_effect_free(compressor);if(cdr===this.cdr)return this;if(!cdr)return this.car;return make_node(AST_Seq,this,{car:this.car,cdr:cdr})})})(function(node,func){node.DEFMETHOD("drop_side_effect_free",func)});OPT(AST_SimpleStatement,function(self,compressor){if(compressor.option("side_effects")){var body=self.body;var node=body.drop_side_effect_free(compressor,true);if(!node){compressor.warn("Dropping side-effect-free statement [{file}:{line},{col}]",self.start);return make_node(AST_EmptyStatement,self)}if(node!==body){return make_node(AST_SimpleStatement,self,{body:node})}}return self});OPT(AST_DWLoop,function(self,compressor){var cond=self.condition.evaluate(compressor);self.condition=cond[0];if(!compressor.option("loops"))return self;if(cond.length>1){if(cond[1]){return make_node(AST_For,self,{body:self.body})}else if(self instanceof AST_While){if(compressor.option("dead_code")){var a=[];extract_declarations_from_unreachable_code(compressor,self.body,a);return make_node(AST_BlockStatement,self,{body:a})}}else{return self}}if(self instanceof AST_While){return make_node(AST_For,self,self).transform(compressor)}return self});function if_break_in_loop(self,compressor){function drop_it(rest){rest=as_statement_array(rest);if(self.body instanceof AST_BlockStatement){self.body=self.body.clone();self.body.body=rest.concat(self.body.body.slice(1));self.body=self.body.transform(compressor)}else{self.body=make_node(AST_BlockStatement,self.body,{body:rest}).transform(compressor)}if_break_in_loop(self,compressor)}var first=self.body instanceof AST_BlockStatement?self.body.body[0]:self.body;if(first instanceof AST_If){if(first.body instanceof AST_Break&&compressor.loopcontrol_target(first.body.label)===self){if(self.condition){self.condition=make_node(AST_Binary,self.condition,{left:self.condition,operator:"&&",right:first.condition.negate(compressor)})}else{self.condition=first.condition.negate(compressor)}drop_it(first.alternative)}else if(first.alternative instanceof AST_Break&&compressor.loopcontrol_target(first.alternative.label)===self){if(self.condition){self.condition=make_node(AST_Binary,self.condition,{left:self.condition,operator:"&&",right:first.condition})}else{self.condition=first.condition}drop_it(first.body)}}}OPT(AST_For,function(self,compressor){var cond=self.condition;if(cond){cond=cond.evaluate(compressor);self.condition=cond[0]}if(!compressor.option("loops"))return self;if(cond){if(cond.length>1&&!cond[1]){if(compressor.option("dead_code")){var a=[];if(self.init instanceof AST_Statement){a.push(self.init)}else if(self.init){a.push(make_node(AST_SimpleStatement,self.init,{body:self.init}))}extract_declarations_from_unreachable_code(compressor,self.body,a);return make_node(AST_BlockStatement,self,{body:a})}}}if_break_in_loop(self,compressor);return self});OPT(AST_If,function(self,compressor){if(is_empty(self.alternative))self.alternative=null;if(!compressor.option("conditionals"))return self;var cond=self.condition.evaluate(compressor);self.condition=cond[0];if(cond.length>1){if(cond[1]){compressor.warn("Condition always true [{file}:{line},{col}]",self.condition.start);if(compressor.option("dead_code")){var a=[];if(self.alternative){extract_declarations_from_unreachable_code(compressor,self.alternative,a)}a.push(self.body);return make_node(AST_BlockStatement,self,{body:a}).transform(compressor)}}else{compressor.warn("Condition always false [{file}:{line},{col}]",self.condition.start);if(compressor.option("dead_code")){var a=[];extract_declarations_from_unreachable_code(compressor,self.body,a);if(self.alternative)a.push(self.alternative);return make_node(AST_BlockStatement,self,{body:a}).transform(compressor)}}}var negated=self.condition.negate(compressor);var self_condition_length=self.condition.print_to_string().length;var negated_length=negated.print_to_string().length;var negated_is_best=negated_length<self_condition_length;if(self.alternative&&negated_is_best){negated_is_best=false;self.condition=negated;var tmp=self.body;self.body=self.alternative||make_node(AST_EmptyStatement,self);self.alternative=tmp}if(is_empty(self.body)&&is_empty(self.alternative)){return make_node(AST_SimpleStatement,self.condition,{body:self.condition}).transform(compressor)}if(self.body instanceof AST_SimpleStatement&&self.alternative instanceof AST_SimpleStatement){return make_node(AST_SimpleStatement,self,{body:make_node(AST_Conditional,self,{condition:self.condition,consequent:statement_to_expression(self.body),alternative:statement_to_expression(self.alternative)})}).transform(compressor)}if(is_empty(self.alternative)&&self.body instanceof AST_SimpleStatement){if(self_condition_length===negated_length&&!negated_is_best&&self.condition instanceof AST_Binary&&self.condition.operator=="||"){negated_is_best=true}if(negated_is_best)return make_node(AST_SimpleStatement,self,{body:make_node(AST_Binary,self,{operator:"||",left:negated,right:statement_to_expression(self.body)})}).transform(compressor);return make_node(AST_SimpleStatement,self,{body:make_node(AST_Binary,self,{operator:"&&",left:self.condition,right:statement_to_expression(self.body)})}).transform(compressor)}if(self.body instanceof AST_EmptyStatement&&self.alternative&&self.alternative instanceof AST_SimpleStatement){return make_node(AST_SimpleStatement,self,{body:make_node(AST_Binary,self,{operator:"||",left:self.condition,right:statement_to_expression(self.alternative)})}).transform(compressor)}if(self.body instanceof AST_Exit&&self.alternative instanceof AST_Exit&&self.body.TYPE==self.alternative.TYPE){return make_node(self.body.CTOR,self,{value:make_node(AST_Conditional,self,{condition:self.condition,consequent:self.body.value||make_node(AST_Undefined,self.body).optimize(compressor),alternative:self.alternative.value||make_node(AST_Undefined,self.alternative).optimize(compressor)})}).transform(compressor)}if(self.body instanceof AST_If&&!self.body.alternative&&!self.alternative){self.condition=make_node(AST_Binary,self.condition,{operator:"&&",left:self.condition,right:self.body.condition}).transform(compressor);self.body=self.body.body}if(aborts(self.body)){if(self.alternative){var alt=self.alternative;self.alternative=null;return make_node(AST_BlockStatement,self,{body:[self,alt]}).transform(compressor)}}if(aborts(self.alternative)){var body=self.body;self.body=self.alternative;self.condition=negated_is_best?negated:self.condition.negate(compressor);self.alternative=null;return make_node(AST_BlockStatement,self,{body:[self,body]}).transform(compressor)}return self});OPT(AST_Switch,function(self,compressor){if(self.body.length==0&&compressor.option("conditionals")){return make_node(AST_SimpleStatement,self,{body:self.expression}).transform(compressor)}for(;;){var last_branch=self.body[self.body.length-1];if(last_branch){var stat=last_branch.body[last_branch.body.length-1];if(stat instanceof AST_Break&&loop_body(compressor.loopcontrol_target(stat.label))===self)last_branch.body.pop();if(last_branch instanceof AST_Default&&last_branch.body.length==0){self.body.pop();continue}}break}var exp=self.expression.evaluate(compressor);out:if(exp.length==2)try{self.expression=exp[0];if(!compressor.option("dead_code"))break out;var value=exp[1];var in_if=false;var in_block=false;var started=false;var stopped=false;var ruined=false;var tt=new TreeTransformer(function(node,descend,in_list){if(node instanceof AST_Lambda||node instanceof AST_SimpleStatement){return node}else if(node instanceof AST_Switch&&node===self){node=node.clone();descend(node,this);return ruined?node:make_node(AST_BlockStatement,node,{body:node.body.reduce(function(a,branch){return a.concat(branch.body)},[])}).transform(compressor)}else if(node instanceof AST_If||node instanceof AST_Try){var save=in_if;in_if=!in_block;descend(node,this);in_if=save;return node}else if(node instanceof AST_StatementWithBody||node instanceof AST_Switch){var save=in_block;in_block=true;descend(node,this);in_block=save;return node}else if(node instanceof AST_Break&&this.loopcontrol_target(node.label)===self){if(in_if){ruined=true;return node}if(in_block)return node;stopped=true;return in_list?MAP.skip:make_node(AST_EmptyStatement,node)}else if(node instanceof AST_SwitchBranch&&this.parent()===self){if(stopped)return MAP.skip;if(node instanceof AST_Case){var exp=node.expression.evaluate(compressor);if(exp.length<2){throw self}if(exp[1]===value||started){started=true;if(aborts(node))stopped=true;descend(node,this);return node}return MAP.skip}descend(node,this);return node}});tt.stack=compressor.stack.slice();self=self.transform(tt)}catch(ex){if(ex!==self)throw ex}return self});OPT(AST_Case,function(self,compressor){self.body=tighten_body(self.body,compressor);return self});OPT(AST_Try,function(self,compressor){self.body=tighten_body(self.body,compressor);return self});AST_Definitions.DEFMETHOD("remove_initializers",function(){this.definitions.forEach(function(def){def.value=null})});AST_Definitions.DEFMETHOD("to_assignments",function(){var assignments=this.definitions.reduce(function(a,def){if(def.value&&!def.is_destructuring()){var name=make_node(AST_SymbolRef,def.name,def.name);a.push(make_node(AST_Assign,def,{operator:"=",left:name,right:def.value}))}else if(def.value){var varDef=make_node(AST_VarDef,def,{name:def.name,value:def.value});var var_=make_node(AST_Var,def,{definitions:[varDef]});a.push(var_)}return a},[]);if(assignments.length==0)return null;return AST_Seq.from_array(assignments)});OPT(AST_Definitions,function(self,compressor){if(self.definitions.length==0)return make_node(AST_EmptyStatement,self);return self});OPT(AST_Import,function(self,compressor){return self});OPT(AST_Call,function(self,compressor){if(compressor.option("unused")&&self.expression instanceof AST_Function&&!self.expression.uses_arguments&&!self.expression.uses_eval&&self.args.length>self.expression.argnames.length){var end=self.expression.argnames.length;for(var i=end,len=self.args.length;i<len;i++){var node=self.args[i].drop_side_effect_free(compressor);if(node){self.args[end++]=node}}self.args.length=end}if(compressor.option("unsafe")){var exp=self.expression;if(exp instanceof AST_SymbolRef&&exp.undeclared()){switch(exp.name){case"Array":if(self.args.length!=1){return make_node(AST_Array,self,{elements:self.args}).transform(compressor)}break;case"Object":if(self.args.length==0){return make_node(AST_Object,self,{properties:[]})}break;case"String":if(self.args.length==0)return make_node(AST_String,self,{value:""});if(self.args.length<=1)return make_node(AST_Binary,self,{left:self.args[0],operator:"+",right:make_node(AST_String,self,{value:""})}).transform(compressor);break;case"Number":if(self.args.length==0)return make_node(AST_Number,self,{value:0});if(self.args.length==1)return make_node(AST_UnaryPrefix,self,{expression:self.args[0],operator:"+"}).transform(compressor);case"Boolean":if(self.args.length==0)return make_node(AST_False,self);if(self.args.length==1)return make_node(AST_UnaryPrefix,self,{expression:make_node(AST_UnaryPrefix,self,{expression:self.args[0],operator:"!"}),operator:"!"}).transform(compressor);break;case"Function":if(self.args.length==0)return make_node(AST_Function,self,{argnames:[],body:[]});if(all(self.args,function(x){return x instanceof AST_String})){try{var code="(function("+self.args.slice(0,-1).map(function(arg){return arg.value}).join(",")+"){"+self.args[self.args.length-1].value+"})()";var ast=parse(code);ast.figure_out_scope({screw_ie8:compressor.option("screw_ie8")});var comp=new Compressor(compressor.options);ast=ast.transform(comp);ast.figure_out_scope({screw_ie8:compressor.option("screw_ie8")});ast.mangle_names();var fun;try{ast.walk(new TreeWalker(function(node){if(node instanceof AST_Lambda){fun=node;throw ast}}))}catch(ex){if(ex!==ast)throw ex}if(!fun)return self;var args=fun.argnames.map(function(arg,i){return make_node(AST_String,self.args[i],{value:arg.print_to_string({ecma:compressor.option("ecma")})})});var code=OutputStream();AST_BlockStatement.prototype._codegen.call(fun,fun,code);code=code.toString().replace(/^\{|\}$/g,"");args.push(make_node(AST_String,self.args[self.args.length-1],{value:code}));self.args=args;return self}catch(ex){if(ex instanceof JS_Parse_Error){compressor.warn("Error parsing code passed to new Function [{file}:{line},{col}]",self.args[self.args.length-1].start);compressor.warn(ex.toString())}else{console.log(ex);throw ex}}}break;case"Symbol":self.args=[];return self;break}}else if(exp instanceof AST_Dot&&exp.property=="toString"&&self.args.length==0){return make_node(AST_Binary,self,{left:make_node(AST_String,self,{value:""}),operator:"+",right:exp.expression}).transform(compressor)}else if(exp instanceof AST_Dot&&exp.expression instanceof AST_Array&&exp.property=="join")EXIT:{var separator;if(self.args.length>0){separator=self.args[0].evaluate(compressor);if(separator.length<2)break EXIT;separator=separator[1]}var elements=[];var consts=[];exp.expression.elements.forEach(function(el){el=el.evaluate(compressor);if(el.length>1){consts.push(el[1])}else{if(consts.length>0){elements.push(make_node(AST_String,self,{value:consts.join(separator)}));consts.length=0}elements.push(el[0])}});if(consts.length>0){elements.push(make_node(AST_String,self,{value:consts.join(separator)}))}if(elements.length==0)return make_node(AST_String,self,{value:""});if(elements.length==1){if(elements[0].is_string(compressor)){return elements[0]}return make_node(AST_Binary,elements[0],{operator:"+",left:make_node(AST_String,self,{value:""}),right:elements[0]})}if(separator==""){var first;if(elements[0].is_string(compressor)||elements[1].is_string(compressor)){first=elements.shift()}else{first=make_node(AST_String,self,{value:""})}return elements.reduce(function(prev,el){return make_node(AST_Binary,el,{operator:"+",left:prev,right:el})},first).transform(compressor)}var node=self.clone();node.expression=node.expression.clone();node.expression.expression=node.expression.expression.clone();node.expression.expression.elements=elements;return best_of(self,node)}}if(compressor.option("side_effects")){if(self.expression instanceof AST_Function&&!self.expression.is_generator&&self.args.length==0&&!AST_Block.prototype.has_side_effects.call(self.expression,compressor)){return make_node(AST_Undefined,self).transform(compressor)}}if(compressor.option("drop_console")){if(self.expression instanceof AST_PropAccess){var name=self.expression.expression;while(name.expression){name=name.expression}if(name instanceof AST_SymbolRef&&name.name=="console"&&name.undeclared()){return make_node(AST_Undefined,self).transform(compressor)}}}if(self.args.length==0&&self.expression instanceof AST_Function&&self.expression.body[0]instanceof AST_Return&&self.expression.body[0].value.is_constant()){
-return self.expression.body[0].value}if(compressor.option("negate_iife")&&compressor.parent()instanceof AST_SimpleStatement&&is_iife_call(self)){return self.negate(compressor,true)}return self});OPT(AST_New,function(self,compressor){if(compressor.option("unsafe")){var exp=self.expression;if(exp instanceof AST_SymbolRef&&exp.undeclared()){switch(exp.name){case"Object":case"RegExp":case"Function":case"Error":case"Array":return make_node(AST_Call,self,self).transform(compressor)}}}return self});OPT(AST_Seq,function(self,compressor){if(!compressor.option("side_effects"))return self;self.car=self.car.drop_side_effect_free(compressor,first_in_statement(compressor));if(!self.car)return maintain_this_binding(compressor.parent(),self,self.cdr);if(compressor.option("cascade")){if(self.car instanceof AST_Assign&&!self.car.left.has_side_effects(compressor)){if(self.car.left.equivalent_to(self.cdr)){return self.car}if(self.cdr instanceof AST_Call&&self.cdr.expression.equivalent_to(self.car.left)){self.cdr.expression=self.car;return self.cdr}}if(!self.car.has_side_effects(compressor)&&self.car.equivalent_to(self.cdr)){return self.car}}if(self.cdr instanceof AST_Undefined){return make_node(AST_UnaryPrefix,self,{operator:"void",expression:self.car})}return self});AST_Unary.DEFMETHOD("lift_sequences",function(compressor){if(compressor.option("sequences")){if(this.expression instanceof AST_Seq){var seq=this.expression;var x=seq.to_array();this.expression=x.pop();x.push(this);seq=AST_Seq.from_array(x).transform(compressor);return seq}}return this});OPT(AST_UnaryPostfix,function(self,compressor){return self.lift_sequences(compressor)});OPT(AST_UnaryPrefix,function(self,compressor){var seq=self.lift_sequences(compressor);if(seq!==self){return seq}var e=self.expression;if(compressor.option("side_effects")&&self.operator=="void"){e=e.drop_side_effect_free(compressor);if(e){self.expression=e;return self}else{return make_node(AST_Undefined,self)}}if(compressor.option("booleans")&&compressor.in_boolean_context()){switch(self.operator){case"!":if(e instanceof AST_UnaryPrefix&&e.operator=="!"){return e.expression}if(e instanceof AST_Binary){var statement=first_in_statement(compressor);self=(statement?best_of_statement:best_of)(self,e.negate(compressor,statement))}break;case"typeof":compressor.warn("Boolean expression always true [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:e,cdr:make_node(AST_True,self)}).optimize(compressor)}}return self.evaluate(compressor)[0]});function has_side_effects_or_prop_access(node,compressor){var save_pure_getters=compressor.option("pure_getters");compressor.options.pure_getters=false;var ret=node.has_side_effects(compressor);compressor.options.pure_getters=save_pure_getters;return ret}AST_Binary.DEFMETHOD("lift_sequences",function(compressor){if(compressor.option("sequences")){if(this.left instanceof AST_Seq){var seq=this.left;var x=seq.to_array();this.left=x.pop();x.push(this);seq=AST_Seq.from_array(x).transform(compressor);return seq}if(this.right instanceof AST_Seq&&this instanceof AST_Assign&&!has_side_effects_or_prop_access(this.left,compressor)){var seq=this.right;var x=seq.to_array();this.right=x.pop();x.push(this);seq=AST_Seq.from_array(x).transform(compressor);return seq}}return this});var commutativeOperators=makePredicate("== === != !== * & | ^");OPT(AST_Binary,function(self,compressor){var lhs=self.left.evaluate(compressor);var rhs=self.right.evaluate(compressor);if(lhs.length>1&&lhs[0].is_constant()!==self.left.is_constant()||rhs.length>1&&rhs[0].is_constant()!==self.right.is_constant()){return make_node(AST_Binary,self,{operator:self.operator,left:lhs[0],right:rhs[0]}).optimize(compressor)}function reverse(op,force){if(force||!(self.left.has_side_effects(compressor)||self.right.has_side_effects(compressor))){if(op)self.operator=op;var tmp=self.left;self.left=self.right;self.right=tmp}}if(commutativeOperators(self.operator)){if(self.right instanceof AST_Constant&&!(self.left instanceof AST_Constant)){if(!(self.left instanceof AST_Binary&&PRECEDENCE[self.left.operator]>=PRECEDENCE[self.operator])){reverse(null,true)}}if(/^[!=]==?$/.test(self.operator)){if(self.left instanceof AST_SymbolRef&&self.right instanceof AST_Conditional){if(self.right.consequent instanceof AST_SymbolRef&&self.right.consequent.definition()===self.left.definition()){if(/^==/.test(self.operator))return self.right.condition;if(/^!=/.test(self.operator))return self.right.condition.negate(compressor)}if(self.right.alternative instanceof AST_SymbolRef&&self.right.alternative.definition()===self.left.definition()){if(/^==/.test(self.operator))return self.right.condition.negate(compressor);if(/^!=/.test(self.operator))return self.right.condition}}if(self.right instanceof AST_SymbolRef&&self.left instanceof AST_Conditional){if(self.left.consequent instanceof AST_SymbolRef&&self.left.consequent.definition()===self.right.definition()){if(/^==/.test(self.operator))return self.left.condition;if(/^!=/.test(self.operator))return self.left.condition.negate(compressor)}if(self.left.alternative instanceof AST_SymbolRef&&self.left.alternative.definition()===self.right.definition()){if(/^==/.test(self.operator))return self.left.condition.negate(compressor);if(/^!=/.test(self.operator))return self.left.condition}}}}self=self.lift_sequences(compressor);if(compressor.option("comparisons"))switch(self.operator){case"===":case"!==":if(self.left.is_string(compressor)&&self.right.is_string(compressor)||self.left.is_boolean()&&self.right.is_boolean()){self.operator=self.operator.substr(0,2)}case"==":case"!=":if(self.left instanceof AST_String&&self.left.value=="undefined"&&self.right instanceof AST_UnaryPrefix&&self.right.operator=="typeof"){var expr=self.right.expression;if(expr instanceof AST_SymbolRef?!expr.undeclared():!(expr instanceof AST_PropAccess)||compressor.option("screw_ie8")){self.right=expr;self.left=make_node(AST_Undefined,self.left).optimize(compressor);if(self.operator.length==2)self.operator+="="}}break}if(compressor.option("booleans")&&compressor.in_boolean_context())switch(self.operator){case"&&":var ll=self.left.evaluate(compressor);var rr=self.right.evaluate(compressor);if(ll.length>1&&!ll[1]||rr.length>1&&!rr[1]){compressor.warn("Boolean && always false [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:self.left,cdr:make_node(AST_False,self)}).optimize(compressor)}if(ll.length>1&&ll[1]){return rr[0]}if(rr.length>1&&rr[1]){return ll[0]}break;case"||":var ll=self.left.evaluate(compressor);var rr=self.right.evaluate(compressor);if(ll.length>1&&ll[1]||rr.length>1&&rr[1]){compressor.warn("Boolean || always true [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:self.left,cdr:make_node(AST_True,self)}).optimize(compressor)}if(ll.length>1&&!ll[1]){return rr[0]}if(rr.length>1&&!rr[1]){return ll[0]}break;case"+":var ll=self.left.evaluate(compressor);var rr=self.right.evaluate(compressor);if(ll.length>1&&ll[0]instanceof AST_String&&ll[1]){compressor.warn("+ in boolean context always true [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:self.right,cdr:make_node(AST_True,self)}).optimize(compressor)}if(rr.length>1&&rr[0]instanceof AST_String&&rr[1]){compressor.warn("+ in boolean context always true [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:self.left,cdr:make_node(AST_True,self)}).optimize(compressor)}break}if(compressor.option("comparisons")&&self.is_boolean()){if(!(compressor.parent()instanceof AST_Binary)||compressor.parent()instanceof AST_Assign){var statement=first_in_statement(compressor);var negated=make_node(AST_UnaryPrefix,self,{operator:"!",expression:self.negate(compressor,statement)});self=(statement?best_of_statement:best_of)(self,negated)}if(compressor.option("unsafe_comps")){switch(self.operator){case"<":reverse(">");break;case"<=":reverse(">=");break}}}if(self.operator=="+"){if(self.right instanceof AST_String&&self.right.getValue()==""&&self.left.is_string(compressor)){return self.left}if(self.left instanceof AST_String&&self.left.getValue()==""&&self.right.is_string(compressor)){return self.right}if(self.left instanceof AST_Binary&&self.left.operator=="+"&&self.left.left instanceof AST_String&&self.left.left.getValue()==""&&self.right.is_string(compressor)){self.left=self.left.right;return self.transform(compressor)}}if(compressor.option("evaluate")){switch(self.operator){case"&&":if(self.left.is_constant()){if(self.left.constant_value(compressor)){compressor.warn("Condition left of && always true [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.right)}else{compressor.warn("Condition left of && always false [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.left)}}break;case"||":if(self.left.is_constant()){if(self.left.constant_value(compressor)){compressor.warn("Condition left of || always true [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.left)}else{compressor.warn("Condition left of || always false [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.right)}}break}if(self.operator=="+"){if(self.left instanceof AST_Constant&&self.right instanceof AST_Binary&&self.right.operator=="+"&&self.right.left instanceof AST_Constant&&self.right.is_string(compressor)){self=make_node(AST_Binary,self,{operator:"+",left:make_node(AST_String,null,{value:""+self.left.getValue()+self.right.left.getValue(),start:self.left.start,end:self.right.left.end}),right:self.right.right})}if(self.right instanceof AST_Constant&&self.left instanceof AST_Binary&&self.left.operator=="+"&&self.left.right instanceof AST_Constant&&self.left.is_string(compressor)){self=make_node(AST_Binary,self,{operator:"+",left:self.left.left,right:make_node(AST_String,null,{value:""+self.left.right.getValue()+self.right.getValue(),start:self.left.right.start,end:self.right.end})})}if(self.left instanceof AST_Binary&&self.left.operator=="+"&&self.left.is_string(compressor)&&self.left.right instanceof AST_Constant&&self.right instanceof AST_Binary&&self.right.operator=="+"&&self.right.left instanceof AST_Constant&&self.right.is_string(compressor)){self=make_node(AST_Binary,self,{operator:"+",left:make_node(AST_Binary,self.left,{operator:"+",left:self.left.left,right:make_node(AST_String,null,{value:""+self.left.right.getValue()+self.right.left.getValue(),start:self.left.right.start,end:self.right.left.end})}),right:self.right.right})}}}if(self.right instanceof AST_Binary&&self.right.operator==self.operator&&(self.operator=="&&"||self.operator=="||"||self.operator=="+"&&(self.right.left.is_string(compressor)||self.left.is_string(compressor)&&self.right.right.is_string(compressor)))){self.left=make_node(AST_Binary,self.left,{operator:self.operator,left:self.left,right:self.right.left});self.right=self.right.right;return self.transform(compressor)}return self.evaluate(compressor)[0]});OPT(AST_SymbolRef,function(self,compressor){var def=self.resolve_defines(compressor);if(def){return def}if(self.undeclared()&&!isLHS(self,compressor.parent())&&(!self.scope.uses_with||!compressor.find_parent(AST_With))){switch(self.name){case"undefined":return make_node(AST_Undefined,self);case"NaN":return make_node(AST_NaN,self).transform(compressor);case"Infinity":return make_node(AST_Infinity,self).transform(compressor)}}if(compressor.option("evaluate")&&compressor.option("reduce_vars")){var d=self.definition();if(d.fixed){if(d.should_replace===undefined){var init=d.fixed.evaluate(compressor);if(init.length>1){var value=init[0].print_to_string().length;var name=d.name.length;var freq=d.references.length;var overhead=d.global||!freq?0:(name+2+value)/freq;d.should_replace=value<=name+overhead?init[0]:false}else{d.should_replace=false}}if(d.should_replace){return d.should_replace}}}return self});OPT(AST_Infinity,function(self,compressor){return make_node(AST_Binary,self,{operator:"/",left:make_node(AST_Number,self,{value:1}),right:make_node(AST_Number,self,{value:0})})});OPT(AST_Undefined,function(self,compressor){if(compressor.option("unsafe")){var scope=compressor.find_parent(AST_Scope);var undef=scope.find_variable("undefined");if(undef){return make_node(AST_SymbolRef,self,{name:"undefined",scope:scope,thedef:undef})}}return self});var ASSIGN_OPS=["+","-","/","*","%",">>","<<",">>>","|","^","&"];var ASSIGN_OPS_COMMUTATIVE=["*","|","^","&"];OPT(AST_Assign,function(self,compressor){self=self.lift_sequences(compressor);if(self.operator=="="&&self.left instanceof AST_SymbolRef&&self.right instanceof AST_Binary){if(self.right.left instanceof AST_SymbolRef&&self.right.left.name==self.left.name&&member(self.right.operator,ASSIGN_OPS)){self.operator=self.right.operator+"=";self.right=self.right.right}else if(self.right.right instanceof AST_SymbolRef&&self.right.right.name==self.left.name&&member(self.right.operator,ASSIGN_OPS_COMMUTATIVE)&&!self.right.left.has_side_effects(compressor)){self.operator=self.right.operator+"=";self.right=self.right.left}}return self});OPT(AST_DefaultAssign,function(self,compressor){if(!compressor.option("evaluate")){return self}var evaluateRight=self.right.evaluate(compressor);if(evaluateRight.length>1&&evaluateRight[1]===undefined){self=self.left}else{self.right=evaluateRight[0]}return self});OPT(AST_Conditional,function(self,compressor){if(!compressor.option("conditionals"))return self;if(self.condition instanceof AST_Seq){var car=self.condition.car;self.condition=self.condition.cdr;return AST_Seq.cons(car,self)}var cond=self.condition.evaluate(compressor);if(cond.length>1){if(cond[1]){compressor.warn("Condition always true [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.consequent)}else{compressor.warn("Condition always false [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.alternative)}}var statement=first_in_statement(compressor);var negated=cond[0].negate(compressor,statement);if((statement?best_of_statement:best_of)(cond[0],negated)===negated){self=make_node(AST_Conditional,self,{condition:negated,consequent:self.alternative,alternative:self.consequent})}var consequent=self.consequent;var alternative=self.alternative;if(consequent instanceof AST_Assign&&alternative instanceof AST_Assign&&consequent.operator==alternative.operator&&consequent.left.equivalent_to(alternative.left)&&(!consequent.left.has_side_effects(compressor)||!self.condition.has_side_effects(compressor))){return make_node(AST_Assign,self,{operator:consequent.operator,left:consequent.left,right:make_node(AST_Conditional,self,{condition:self.condition,consequent:consequent.right,alternative:alternative.right})})}if(consequent instanceof AST_Call&&alternative.TYPE===consequent.TYPE&&consequent.args.length==1&&alternative.args.length==1&&consequent.expression.equivalent_to(alternative.expression)&&!consequent.expression.has_side_effects(compressor)){consequent.args[0]=make_node(AST_Conditional,self,{condition:self.condition,consequent:consequent.args[0],alternative:alternative.args[0]});return consequent}if(consequent instanceof AST_Conditional&&consequent.alternative.equivalent_to(alternative)){return make_node(AST_Conditional,self,{condition:make_node(AST_Binary,self,{left:self.condition,operator:"&&",right:consequent.condition}),consequent:consequent.consequent,alternative:alternative})}if(consequent.equivalent_to(alternative)){return make_node(AST_Seq,self,{car:self.condition,cdr:consequent}).optimize(compressor)}if(is_true(self.consequent)){if(is_false(self.alternative)){return booleanize(self.condition)}return make_node(AST_Binary,self,{operator:"||",left:booleanize(self.condition),right:self.alternative})}if(is_false(self.consequent)){if(is_true(self.alternative)){return booleanize(self.condition.negate(compressor))}return make_node(AST_Binary,self,{operator:"&&",left:booleanize(self.condition.negate(compressor)),right:self.alternative})}if(is_true(self.alternative)){return make_node(AST_Binary,self,{operator:"||",left:booleanize(self.condition.negate(compressor)),right:self.consequent})}if(is_false(self.alternative)){return make_node(AST_Binary,self,{operator:"&&",left:booleanize(self.condition),right:self.consequent})}return self;function booleanize(node){if(node.is_boolean())return node;return make_node(AST_UnaryPrefix,node,{operator:"!",expression:node.negate(compressor)})}function is_true(node){return node instanceof AST_True||node instanceof AST_UnaryPrefix&&node.operator=="!"&&node.expression instanceof AST_Constant&&!node.expression.value}function is_false(node){return node instanceof AST_False||node instanceof AST_UnaryPrefix&&node.operator=="!"&&node.expression instanceof AST_Constant&&!!node.expression.value}});OPT(AST_Boolean,function(self,compressor){if(compressor.option("booleans")){var p=compressor.parent();if(p instanceof AST_Binary&&(p.operator=="=="||p.operator=="!=")){compressor.warn("Non-strict equality against boolean: {operator} {value} [{file}:{line},{col}]",{operator:p.operator,value:self.value,file:p.start.file,line:p.start.line,col:p.start.col});return make_node(AST_Number,self,{value:+self.value})}return make_node(AST_UnaryPrefix,self,{operator:"!",expression:make_node(AST_Number,self,{value:1-self.value})})}return self});OPT(AST_Sub,function(self,compressor){var prop=self.property;if(prop instanceof AST_String&&compressor.option("properties")){prop=prop.getValue();if(RESERVED_WORDS(prop)?compressor.option("screw_ie8"):is_identifier_string(prop)){return make_node(AST_Dot,self,{expression:self.expression,property:prop}).optimize(compressor)}var v=parseFloat(prop);if(!isNaN(v)&&v.toString()==prop){self.property=make_node(AST_Number,self.property,{value:v})}}return self.evaluate(compressor)[0]});OPT(AST_Dot,function(self,compressor){var def=self.resolve_defines(compressor);if(def){return def}var prop=self.property;if(RESERVED_WORDS(prop)&&!compressor.option("screw_ie8")){return make_node(AST_Sub,self,{expression:self.expression,property:make_node(AST_String,self,{value:prop})}).optimize(compressor)}if(compressor.option("unsafe_proto")&&self.expression instanceof AST_Dot&&self.expression.property=="prototype"){var exp=self.expression.expression;if(exp instanceof AST_SymbolRef&&exp.undeclared())switch(exp.name){case"Array":self.expression=make_node(AST_Array,self.expression,{elements:[]});break;case"Object":self.expression=make_node(AST_Object,self.expression,{properties:[]});break;case"String":self.expression=make_node(AST_String,self.expression,{value:""});break}}return self.evaluate(compressor)[0]});function literals_in_boolean_context(self,compressor){if(compressor.option("booleans")&&compressor.in_boolean_context()){var best=first_in_statement(compressor)?best_of_statement:best_of;return best(self,make_node(AST_Seq,self,{car:self,cdr:make_node(AST_True,self)}).optimize(compressor))}return self}OPT(AST_Array,literals_in_boolean_context);OPT(AST_Object,literals_in_boolean_context);OPT(AST_RegExp,literals_in_boolean_context);OPT(AST_Return,function(self,compressor){if(self.value instanceof AST_Undefined){self.value=null}return self});OPT(AST_Class,function(self,compressor){return self});OPT(AST_Yield,function(self,compressor){if(!self.is_star&&self.expression instanceof AST_Undefined){self.expression=null}return self});OPT(AST_VarDef,function(self,compressor){var defines=compressor.option("global_defs");if(defines&&HOP(defines,self.name.name)){compressor.warn("global_defs "+self.name.name+" redefined [{file}:{line},{col}]",self.start)}return self});OPT(AST_TemplateString,function(self,compressor){if(!compressor.option("evaluate")||compressor.parent()instanceof AST_PrefixedTemplateString)return self;var segments=[];for(var i=0;i<self.segments.length;i++){if(self.segments[i]instanceof AST_Node){var result=self.segments[i].evaluate(compressor);if(result.length===1){segments.push(result[0]);continue}if(result[0].print_to_string().length+3<(result[1]+"").length){segments.push(result[0]);continue}segments[segments.length-1].value=segments[segments.length-1].value+result[1]+self.segments[++i].value}else{segments.push(self.segments[i])}}self.segments=segments;return self});OPT(AST_PrefixedTemplateString,function(self,compressor){return self})})();/***********************************************************************
+"use strict";function Compressor(options,false_by_default){if(!(this instanceof Compressor))return new Compressor(options,false_by_default);TreeTransformer.call(this,this.before,this.after);this.options=defaults(options,{sequences:!false_by_default,properties:!false_by_default,dead_code:!false_by_default,drop_debugger:!false_by_default,unsafe:false,unsafe_comps:false,unsafe_proto:false,conditionals:!false_by_default,comparisons:!false_by_default,evaluate:!false_by_default,booleans:!false_by_default,loops:!false_by_default,unused:!false_by_default,toplevel:!!(options&&options["top_retain"]),top_retain:null,hoist_funs:!false_by_default,keep_fargs:true,keep_fnames:false,hoist_vars:false,if_return:!false_by_default,join_vars:!false_by_default,collapse_vars:!false_by_default,reduce_vars:!false_by_default,cascade:!false_by_default,side_effects:!false_by_default,pure_getters:false,pure_funcs:null,negate_iife:!false_by_default,screw_ie8:true,drop_console:false,angular:false,warnings:true,global_defs:{},passes:1},true);var pure_funcs=this.options["pure_funcs"];if(typeof pure_funcs=="function"){this.pure_funcs=pure_funcs}else{this.pure_funcs=pure_funcs?function(node){return pure_funcs.indexOf(node.expression.print_to_string())<0}:return_true}var top_retain=this.options["top_retain"];if(top_retain instanceof RegExp){this.top_retain=function(def){return top_retain.test(def.name)}}else if(typeof top_retain==="function"){this.top_retain=top_retain}else if(top_retain){if(typeof top_retain==="string"){top_retain=top_retain.split(/,/)}this.top_retain=function(def){return top_retain.indexOf(def.name)>=0}}var sequences=this.options["sequences"];this.sequences_limit=sequences==1?200:sequences|0;this.warnings_produced={}}Compressor.prototype=new TreeTransformer;merge(Compressor.prototype,{option:function(key){return this.options[key]},compress:function(node){var passes=+this.options.passes||1;for(var pass=0;pass<passes&&pass<3;++pass){if(pass>0||this.option("reduce_vars"))node.reset_opt_flags(this,true);node=node.transform(this)}return node},warn:function(text,props){if(this.options.warnings){var message=string_template(text,props);if(!(message in this.warnings_produced)){this.warnings_produced[message]=true;AST_Node.warn.apply(AST_Node,arguments)}}},clear_warnings:function(){this.warnings_produced={}},before:function(node,descend,in_list){if(node._squeezed)return node;var was_scope=false;if(node instanceof AST_Scope){node=node.hoist_declarations(this);was_scope=true}descend(node,this);node=node.optimize(this);if(was_scope&&node instanceof AST_Scope){node.drop_unused(this);descend(node,this)}node._squeezed=true;return node}});(function(){function OPT(node,optimizer){node.DEFMETHOD("optimize",function(compressor){var self=this;if(self._optimized)return self;if(compressor.has_directive("use asm"))return self;var opt=optimizer(self,compressor);opt._optimized=true;if(opt===self)return opt;return opt.transform(compressor)})}OPT(AST_Node,function(self,compressor){return self});AST_Node.DEFMETHOD("equivalent_to",function(node){return this.print_to_string()==node.print_to_string()});AST_Node.DEFMETHOD("reset_opt_flags",function(compressor,rescan){var reduce_vars=rescan&&compressor.option("reduce_vars");var safe_ids=[];push();var tw=new TreeWalker(function(node){if(!(node instanceof AST_Directive||node instanceof AST_Constant)){node._squeezed=false;node._optimized=false}if(reduce_vars){if(node instanceof AST_Toplevel)node.globals.each(reset_def);if(node instanceof AST_Scope)node.variables.each(reset_def);if(node instanceof AST_SymbolRef){var d=node.definition();d.references.push(node);if(!d.fixed||isModified(node,0)||!is_safe(d)){d.fixed=false}}if(node instanceof AST_VarDef){var d=node.name.definition();if(d.fixed===undefined){d.fixed=node.value||make_node(AST_Undefined,node);mark_as_safe(d)}else{d.fixed=false}}var iife;if(node instanceof AST_Function&&(iife=tw.parent())instanceof AST_Call&&iife.expression===node){node.argnames.forEach(function(arg,i){var d=arg.definition();d.fixed=iife.args[i]||make_node(AST_Undefined,iife);mark_as_safe(d)})}if(node instanceof AST_If||node instanceof AST_DWLoop){node.condition.walk(tw);push();node.body.walk(tw);pop();if(node.alternative){push();node.alternative.walk(tw);pop()}return true}if(node instanceof AST_LabeledStatement){push();node.body.walk(tw);pop();return true}if(node instanceof AST_For){if(node.init)node.init.walk(tw);push();if(node.condition)node.condition.walk(tw);node.body.walk(tw);if(node.step)node.step.walk(tw);pop();return true}if(node instanceof AST_ForIn){var sym=node.init;if(sym instanceof AST_Var){sym=sym.definitions[0].name}var d=sym.definition();d.references.push(sym);d.fixed=false;node.object.walk(tw);push();node.body.walk(tw);pop();return true}}});this.walk(tw);function mark_as_safe(def){safe_ids[safe_ids.length-1][def.id]=true}function is_safe(def){for(var i=safe_ids.length,id=def.id;--i>=0;){if(safe_ids[i][id])return true}}function push(){safe_ids.push(Object.create(null))}function pop(){safe_ids.pop()}function reset_def(def){def.fixed=undefined;def.references=[];def.should_replace=undefined}function isModified(node,level){var parent=tw.parent(level);if(isLHS(node,parent)||parent instanceof AST_Call&&parent.expression===node){return true}else if(parent instanceof AST_PropAccess&&parent.expression===node){return isModified(parent,level+1)}}});function make_node(ctor,orig,props){if(!props)props={};if(orig){if(!props.start)props.start=orig.start;if(!props.end)props.end=orig.end}return new ctor(props)}function make_node_from_constant(compressor,val,orig){switch(typeof val){case"string":return make_node(AST_String,orig,{value:val});case"number":if(isNaN(val)){return make_node(AST_NaN,orig)}if(1/val<0){return make_node(AST_UnaryPrefix,orig,{operator:"-",expression:make_node(AST_Number,orig,{value:-val})})}return make_node(AST_Number,orig,{value:val});case"boolean":return make_node(val?AST_True:AST_False,orig).transform(compressor);case"undefined":return make_node(AST_Undefined,orig).transform(compressor);default:if(val===null){return make_node(AST_Null,orig,{value:null})}if(val instanceof RegExp){return make_node(AST_RegExp,orig,{value:val})}throw new Error(string_template("Can't handle constant of type: {type}",{type:typeof val}))}}function maintain_this_binding(parent,orig,val){if(parent instanceof AST_Call&&parent.expression===orig){if(val instanceof AST_PropAccess||val instanceof AST_SymbolRef&&val.name==="eval"){return make_node(AST_Seq,orig,{car:make_node(AST_Number,orig,{value:0}),cdr:val})}}return val}function as_statement_array(thing){if(thing===null)return[];if(thing instanceof AST_BlockStatement)return thing.body;if(thing instanceof AST_EmptyStatement)return[];if(thing instanceof AST_Statement)return[thing];throw new Error("Can't convert thing to statement array")}function is_empty(thing){if(thing===null)return true;if(thing instanceof AST_EmptyStatement)return true;if(thing instanceof AST_BlockStatement)return thing.body.length==0;return false}function loop_body(x){if(x instanceof AST_Switch)return x;if(x instanceof AST_For||x instanceof AST_ForIn||x instanceof AST_DWLoop){return x.body instanceof AST_BlockStatement?x.body:x}return x}var readOnlyPrefix=makePredicate("! ~ + - void typeof");function statement_to_expression(stat){if(stat.body instanceof AST_UnaryPrefix&&readOnlyPrefix(stat.body.operator)){return stat.body.expression}else{return stat.body}}function is_iife_call(node){if(node instanceof AST_Call&&!(node instanceof AST_New)){return node.expression instanceof AST_Function||is_iife_call(node.expression)}return false}function tighten_body(statements,compressor){var CHANGED,max_iter=10;do{CHANGED=false;if(compressor.option("angular")){statements=process_for_angular(statements)}statements=eliminate_spurious_blocks(statements);if(compressor.option("dead_code")){statements=eliminate_dead_code(statements,compressor)}if(compressor.option("if_return")){statements=handle_if_return(statements,compressor)}if(compressor.sequences_limit>0){statements=sequencesize(statements,compressor)}if(compressor.option("join_vars")){statements=join_consecutive_vars(statements,compressor)}if(compressor.option("collapse_vars")){statements=collapse_single_use_vars(statements,compressor)}}while(CHANGED&&max_iter-- >0);return statements;function collapse_single_use_vars(statements,compressor){var self=compressor.self();var var_defs_removed=false;for(var stat_index=statements.length;--stat_index>=0;){var stat=statements[stat_index];if(stat instanceof AST_Definitions)continue;[stat,stat.body,stat.alternative,stat.bcatch,stat.bfinally].forEach(function(node){node&&node.body&&collapse_single_use_vars(node.body,compressor)});if(stat_index<=0)break;var prev_stat_index=stat_index-1;var prev_stat=statements[prev_stat_index];if(!(prev_stat instanceof AST_Definitions))continue;var var_defs=prev_stat.definitions;if(var_defs==null)continue;var var_names_seen={};var side_effects_encountered=false;var lvalues_encountered=false;var lvalues={};for(var var_defs_index=var_defs.length;--var_defs_index>=0;){var var_decl=var_defs[var_defs_index];if(var_decl.value==null)break;var var_name=var_decl.name.name;if(!var_name||!var_name.length)break;if(var_name in var_names_seen)break;var_names_seen[var_name]=true;var def=self.find_variable&&self.find_variable(var_name);if(!def||!def.references||def.references.length!==1||var_name=="arguments"){side_effects_encountered=true;continue}var ref=def.references[0];if(ref.scope.uses_eval||ref.scope.uses_with)break;if(var_decl.value.is_constant()){var ctt=new TreeTransformer(function(node){if(node===ref){var parent=ctt.parent();if(!(parent instanceof AST_ForIn&&parent.init===node)){return replace_var(node,parent,true)}}});stat.transform(ctt);continue}if(side_effects_encountered|=lvalues_encountered)continue;if(ref.scope!==self){side_effects_encountered|=var_decl.value.has_side_effects(compressor);continue}var tw=new TreeWalker(function(node){if(node instanceof AST_SymbolRef&&is_lvalue(node,tw.parent())){lvalues[node.name]=lvalues_encountered=true}});var_decl.value.walk(tw);var unwind=false;var tt=new TreeTransformer(function preorder(node){if(unwind)return node;var parent=tt.parent();if(node instanceof AST_Lambda||node instanceof AST_Try||node instanceof AST_With||node instanceof AST_Case||node instanceof AST_IterationStatement||parent instanceof AST_If&&node!==parent.condition||parent instanceof AST_Conditional&&node!==parent.condition||parent instanceof AST_Binary&&(parent.operator=="&&"||parent.operator=="||")&&node===parent.right||parent instanceof AST_Switch&&node!==parent.expression){return side_effects_encountered=unwind=true,node}},function postorder(node){if(unwind)return node;if(node===ref)return unwind=true,replace_var(node,tt.parent(),false);if(side_effects_encountered|=node.has_side_effects(compressor))return unwind=true,node;if(lvalues_encountered&&node instanceof AST_SymbolRef&&node.name in lvalues){side_effects_encountered=true;return unwind=true,node}});stat.transform(tt)}}if(var_defs_removed)for(var i=statements.length;--i>=0;){if(statements.length>1&&statements[i]instanceof AST_EmptyStatement)statements.splice(i,1)}return statements;function is_lvalue(node,parent){return node instanceof AST_SymbolRef&&(parent instanceof AST_Assign&&node===parent.left||parent instanceof AST_Unary&&parent.expression===node&&(parent.operator=="++"||parent.operator=="--"))}function replace_var(node,parent,is_constant){if(is_lvalue(node,parent))return node;var value=maintain_this_binding(parent,node,var_decl.value);var_decl.value=null;var_defs.splice(var_defs_index,1);if(var_defs.length===0){statements[prev_stat_index]=make_node(AST_EmptyStatement,self);var_defs_removed=true}stat.reset_opt_flags(compressor);compressor.warn("Collapsing "+(is_constant?"constant":"variable")+" "+var_name+" [{file}:{line},{col}]",node.start);CHANGED=true;return value}}function process_for_angular(statements){function has_inject(comment){return/@ngInject/.test(comment.value)}function make_arguments_names_list(func){return func.argnames.map(function(sym){return make_node(AST_String,sym,{value:sym.name})})}function make_array(orig,elements){return make_node(AST_Array,orig,{elements:elements})}function make_injector(func,name){return make_node(AST_SimpleStatement,func,{body:make_node(AST_Assign,func,{operator:"=",left:make_node(AST_Dot,name,{expression:make_node(AST_SymbolRef,name,name),property:"$inject"}),right:make_array(func,make_arguments_names_list(func))})})}function check_expression(body){if(body&&body.args){body.args.forEach(function(argument,index,array){var comments=argument.start.comments_before;if(argument instanceof AST_Lambda&&comments.length&&has_inject(comments[0])){array[index]=make_array(argument,make_arguments_names_list(argument).concat(argument))}});if(body.expression&&body.expression.expression){check_expression(body.expression.expression)}}}return statements.reduce(function(a,stat){a.push(stat);if(stat.body&&stat.body.args){check_expression(stat.body)}else{var token=stat.start;var comments=token.comments_before;if(comments&&comments.length>0){var last=comments.pop();if(has_inject(last)){if(stat instanceof AST_Defun){a.push(make_injector(stat,stat.name))}else if(stat instanceof AST_Definitions){stat.definitions.forEach(function(def){if(def.value&&def.value instanceof AST_Lambda){a.push(make_injector(def.value,def.name))}})}else{compressor.warn("Unknown statement marked with @ngInject [{file}:{line},{col}]",token)}}}}return a},[])}function eliminate_spurious_blocks(statements){var seen_dirs=[];return statements.reduce(function(a,stat){if(stat instanceof AST_BlockStatement){CHANGED=true;a.push.apply(a,eliminate_spurious_blocks(stat.body))}else if(stat instanceof AST_EmptyStatement){CHANGED=true}else if(stat instanceof AST_Directive){if(seen_dirs.indexOf(stat.value)<0){a.push(stat);seen_dirs.push(stat.value)}else{CHANGED=true}}else{a.push(stat)}return a},[])}function handle_if_return(statements,compressor){var self=compressor.self();var multiple_if_returns=has_multiple_if_returns(statements);var in_lambda=self instanceof AST_Lambda;var ret=[];loop:for(var i=statements.length;--i>=0;){var stat=statements[i];switch(true){case in_lambda&&stat instanceof AST_Return&&!stat.value&&ret.length==0:CHANGED=true;continue loop;case stat instanceof AST_If:if(stat.body instanceof AST_Return){if((in_lambda&&ret.length==0||ret[0]instanceof AST_Return&&!ret[0].value)&&!stat.body.value&&!stat.alternative){CHANGED=true;var cond=make_node(AST_SimpleStatement,stat.condition,{body:stat.condition});ret.unshift(cond);continue loop}if(ret[0]instanceof AST_Return&&stat.body.value&&ret[0].value&&!stat.alternative){CHANGED=true;stat=stat.clone();stat.alternative=ret[0];ret[0]=stat.transform(compressor);continue loop}if(multiple_if_returns&&(ret.length==0||ret[0]instanceof AST_Return)&&stat.body.value&&!stat.alternative&&in_lambda){CHANGED=true;stat=stat.clone();stat.alternative=ret[0]||make_node(AST_Return,stat,{value:make_node(AST_Undefined,stat)});ret[0]=stat.transform(compressor);continue loop}if(!stat.body.value&&in_lambda){CHANGED=true;stat=stat.clone();stat.condition=stat.condition.negate(compressor);var body=as_statement_array(stat.alternative).concat(ret);var funs=extract_functions_from_statement_array(body);stat.body=make_node(AST_BlockStatement,stat,{body:body});stat.alternative=null;ret=funs.concat([stat.transform(compressor)]);continue loop}if(compressor.option("sequences")&&i>0&&statements[i-1]instanceof AST_If&&statements[i-1].body instanceof AST_Return&&ret.length==1&&in_lambda&&ret[0]instanceof AST_SimpleStatement&&!stat.alternative){CHANGED=true;ret.push(make_node(AST_Return,ret[0],{value:make_node(AST_Undefined,ret[0])}).transform(compressor));ret.unshift(stat);continue loop}}var ab=aborts(stat.body);var lct=ab instanceof AST_LoopControl?compressor.loopcontrol_target(ab.label):null;if(ab&&(ab instanceof AST_Return&&!ab.value&&in_lambda||ab instanceof AST_Continue&&self===loop_body(lct)||ab instanceof AST_Break&&lct instanceof AST_BlockStatement&&self===lct)){if(ab.label){remove(ab.label.thedef.references,ab)}CHANGED=true;var body=as_statement_array(stat.body).slice(0,-1);stat=stat.clone();stat.condition=stat.condition.negate(compressor);stat.body=make_node(AST_BlockStatement,stat,{body:as_statement_array(stat.alternative).concat(ret)});stat.alternative=make_node(AST_BlockStatement,stat,{body:body});ret=[stat.transform(compressor)];continue loop}var ab=aborts(stat.alternative);var lct=ab instanceof AST_LoopControl?compressor.loopcontrol_target(ab.label):null;if(ab&&(ab instanceof AST_Return&&!ab.value&&in_lambda||ab instanceof AST_Continue&&self===loop_body(lct)||ab instanceof AST_Break&&lct instanceof AST_BlockStatement&&self===lct)){if(ab.label){remove(ab.label.thedef.references,ab)}CHANGED=true;stat=stat.clone();stat.body=make_node(AST_BlockStatement,stat.body,{body:as_statement_array(stat.body).concat(ret)});stat.alternative=make_node(AST_BlockStatement,stat.alternative,{body:as_statement_array(stat.alternative).slice(0,-1)});ret=[stat.transform(compressor)];continue loop}ret.unshift(stat);break;default:ret.unshift(stat);break}}return ret;function has_multiple_if_returns(statements){var n=0;for(var i=statements.length;--i>=0;){var stat=statements[i];if(stat instanceof AST_If&&stat.body instanceof AST_Return){if(++n>1)return true}}return false}}function eliminate_dead_code(statements,compressor){var has_quit=false;var orig=statements.length;var self=compressor.self();statements=statements.reduce(function(a,stat){if(has_quit){extract_declarations_from_unreachable_code(compressor,stat,a)}else{if(stat instanceof AST_LoopControl){var lct=compressor.loopcontrol_target(stat.label);if(stat instanceof AST_Break&&lct instanceof AST_BlockStatement&&loop_body(lct)===self||stat instanceof AST_Continue&&loop_body(lct)===self){if(stat.label){remove(stat.label.thedef.references,stat)}}else{a.push(stat)}}else{a.push(stat)}if(aborts(stat))has_quit=true}return a},[]);CHANGED=statements.length!=orig;return statements}function sequencesize(statements,compressor){if(statements.length<2)return statements;var seq=[],ret=[];function push_seq(){seq=AST_Seq.from_array(seq);if(seq)ret.push(make_node(AST_SimpleStatement,seq,{body:seq}));seq=[]}statements.forEach(function(stat){if(stat instanceof AST_SimpleStatement){if(seqLength(seq)>=compressor.sequences_limit){push_seq()}seq.push(seq.length>0?statement_to_expression(stat):stat.body)}else{push_seq();ret.push(stat)}});push_seq();ret=sequencesize_2(ret,compressor);CHANGED=ret.length!=statements.length;return ret}function seqLength(a){for(var len=0,i=0;i<a.length;++i){var stat=a[i];if(stat instanceof AST_Seq){len+=stat.len()}else{len++}}return len}function sequencesize_2(statements,compressor){function cons_seq(right){ret.pop();var left=prev.body;if(left instanceof AST_Seq){left.add(right)}else{left=AST_Seq.cons(left,right)}return left.transform(compressor)}var ret=[],prev=null;statements.forEach(function(stat){if(prev){if(stat instanceof AST_For){var opera={};try{prev.body.walk(new TreeWalker(function(node){if(node instanceof AST_Binary&&node.operator=="in")throw opera}));if(stat.init&&!(stat.init instanceof AST_Definitions)){stat.init=cons_seq(stat.init)}else if(!stat.init){stat.init=statement_to_expression(prev);ret.pop()}}catch(ex){if(ex!==opera)throw ex}}else if(stat instanceof AST_If){stat.condition=cons_seq(stat.condition)}else if(stat instanceof AST_With){stat.expression=cons_seq(stat.expression)}else if(stat instanceof AST_Exit&&stat.value){stat.value=cons_seq(stat.value)}else if(stat instanceof AST_Exit){stat.value=cons_seq(make_node(AST_Undefined,stat))}else if(stat instanceof AST_Switch){stat.expression=cons_seq(stat.expression)}}ret.push(stat);prev=stat instanceof AST_SimpleStatement?stat:null});return ret}function join_consecutive_vars(statements,compressor){var prev=null;return statements.reduce(function(a,stat){if(stat instanceof AST_Definitions&&prev&&prev.TYPE==stat.TYPE){prev.definitions=prev.definitions.concat(stat.definitions);CHANGED=true}else if(stat instanceof AST_For&&prev instanceof AST_Var&&(!stat.init||stat.init.TYPE==prev.TYPE)){CHANGED=true;a.pop();if(stat.init){stat.init.definitions=prev.definitions.concat(stat.init.definitions)}else{stat.init=prev}a.push(stat);prev=stat}else{prev=stat;a.push(stat)}return a},[])}}function extract_functions_from_statement_array(statements){var funs=[];for(var i=statements.length-1;i>=0;--i){var stat=statements[i];if(stat instanceof AST_Defun){statements.splice(i,1);funs.unshift(stat)}}return funs}function extract_declarations_from_unreachable_code(compressor,stat,target){if(!(stat instanceof AST_Defun)){compressor.warn("Dropping unreachable code [{file}:{line},{col}]",stat.start)}stat.walk(new TreeWalker(function(node){if(node instanceof AST_Definitions){compressor.warn("Declarations in unreachable code! [{file}:{line},{col}]",node.start);node.remove_initializers();target.push(node);return true}if(node instanceof AST_Defun){target.push(node);return true}if(node instanceof AST_Scope){return true}}))}(function(def){var unary_bool=["!","delete"];var binary_bool=["in","instanceof","==","!=","===","!==","<","<=",">=",">"];def(AST_Node,return_false);def(AST_UnaryPrefix,function(){return member(this.operator,unary_bool)});def(AST_Binary,function(){return member(this.operator,binary_bool)||(this.operator=="&&"||this.operator=="||")&&this.left.is_boolean()&&this.right.is_boolean()});def(AST_Conditional,function(){return this.consequent.is_boolean()&&this.alternative.is_boolean()});def(AST_Assign,function(){return this.operator=="="&&this.right.is_boolean()});def(AST_Seq,function(){return this.cdr.is_boolean()});def(AST_True,return_true);def(AST_False,return_true)})(function(node,func){node.DEFMETHOD("is_boolean",func)});(function(def){def(AST_Node,return_false);def(AST_String,return_true);def(AST_UnaryPrefix,function(){return this.operator=="typeof"});def(AST_Binary,function(compressor){return this.operator=="+"&&(this.left.is_string(compressor)||this.right.is_string(compressor))});def(AST_Assign,function(compressor){return(this.operator=="="||this.operator=="+=")&&this.right.is_string(compressor)});def(AST_Seq,function(compressor){return this.cdr.is_string(compressor)});def(AST_Conditional,function(compressor){return this.consequent.is_string(compressor)&&this.alternative.is_string(compressor)})})(function(node,func){node.DEFMETHOD("is_string",func)});function isLHS(node,parent){return parent instanceof AST_Unary&&(parent.operator==="++"||parent.operator==="--")||parent instanceof AST_Assign&&parent.left===node}(function(def){AST_Node.DEFMETHOD("resolve_defines",function(compressor){if(!compressor.option("global_defs"))return;var def=this._find_defs(compressor,"");if(def){var node,parent=this,level=0;do{node=parent;parent=compressor.parent(level++)}while(parent instanceof AST_PropAccess&&parent.expression===node);if(isLHS(node,parent)){compressor.warn("global_defs "+this.print_to_string()+" redefined [{file}:{line},{col}]",this.start)}else{return def}}});function to_node(compressor,value,orig){if(value instanceof AST_Node)return make_node(value.CTOR,orig,value);if(Array.isArray(value))return make_node(AST_Array,orig,{elements:value.map(function(value){return to_node(compressor,value,orig)})});if(value&&typeof value=="object"){var props=[];for(var key in value){props.push(make_node(AST_ObjectKeyVal,orig,{key:key,value:to_node(compressor,value[key],orig)}))}return make_node(AST_Object,orig,{properties:props})}return make_node_from_constant(compressor,value,orig)}def(AST_Node,noop);def(AST_Dot,function(compressor,suffix){return this.expression._find_defs(compressor,suffix+"."+this.property)});def(AST_SymbolRef,function(compressor,suffix){if(!this.global())return;var name;var defines=compressor.option("global_defs");if(defines&&HOP(defines,name=this.name+suffix)){var node=to_node(compressor,defines[name],this);var top=compressor.find_parent(AST_Toplevel);node.walk(new TreeWalker(function(node){if(node instanceof AST_SymbolRef){node.scope=top;node.thedef=top.def_global(node)}}));return node}})})(function(node,func){node.DEFMETHOD("_find_defs",func)});function best_of(ast1,ast2){return ast1.print_to_string().length>ast2.print_to_string().length?ast2:ast1}function best_of_statement(ast1,ast2){return best_of(make_node(AST_SimpleStatement,ast1,{body:ast1}),make_node(AST_SimpleStatement,ast2,{body:ast2})).body}(function(def){AST_Node.DEFMETHOD("evaluate",function(compressor){if(!compressor.option("evaluate"))return[this];var val;try{val=this._eval(compressor)}catch(ex){if(ex!==def)throw ex;return[this]}var node;try{node=make_node_from_constant(compressor,val,this)}catch(ex){return[this]}return[best_of(node,this),val]});var unaryPrefix=makePredicate("! ~ - +");AST_Node.DEFMETHOD("is_constant",function(){if(this instanceof AST_Constant){return!(this instanceof AST_RegExp)}else{return this instanceof AST_UnaryPrefix&&this.expression instanceof AST_Constant&&unaryPrefix(this.operator)}});AST_Node.DEFMETHOD("constant_value",function(compressor){if(this instanceof AST_Constant&&!(this instanceof AST_RegExp)){return this.value}if(this instanceof AST_UnaryPrefix&&this.expression instanceof AST_Constant)switch(this.operator){case"!":return!this.expression.value;case"~":return~this.expression.value;case"-":return-this.expression.value;case"+":return+this.expression.value;default:throw new Error(string_template("Cannot evaluate unary expression {value}",{value:this.print_to_string()}))}var result=this.evaluate(compressor);if(result.length>1){return result[1]}throw new Error(string_template("Cannot evaluate constant [{file}:{line},{col}]",this.start))});def(AST_Statement,function(){throw new Error(string_template("Cannot evaluate a statement [{file}:{line},{col}]",this.start))});def(AST_Accessor,function(){throw def});def(AST_Function,function(){throw def});function ev(node,compressor){if(!compressor)throw new Error("Compressor must be passed");return node._eval(compressor)}def(AST_Node,function(){throw def});def(AST_Constant,function(){return this.getValue()});def(AST_Array,function(compressor){if(compressor.option("unsafe")){return this.elements.map(function(element){return ev(element,compressor)})}throw def});def(AST_Object,function(compressor){if(compressor.option("unsafe")){var val={};for(var i=0,len=this.properties.length;i<len;i++){var prop=this.properties[i];var key=prop.key;if(key instanceof AST_Symbol){key=key.name}else if(key instanceof AST_Node){key=ev(key,compressor)}if(typeof Object.prototype[key]==="function"){throw def}val[key]=ev(prop.value,compressor)}return val}throw def});def(AST_UnaryPrefix,function(compressor){var e=this.expression;switch(this.operator){case"!":return!ev(e,compressor);case"typeof":if(e instanceof AST_Function)return typeof function(){};e=ev(e,compressor);if(e instanceof RegExp)throw def;return typeof e;case"void":return void ev(e,compressor);case"~":return~ev(e,compressor);case"-":return-ev(e,compressor);case"+":return+ev(e,compressor)}throw def});def(AST_Binary,function(c){var left=this.left,right=this.right,result;switch(this.operator){case"&&":result=ev(left,c)&&ev(right,c);break;case"||":result=ev(left,c)||ev(right,c);break;case"|":result=ev(left,c)|ev(right,c);break;case"&":result=ev(left,c)&ev(right,c);break;case"^":result=ev(left,c)^ev(right,c);break;case"+":result=ev(left,c)+ev(right,c);break;case"*":result=ev(left,c)*ev(right,c);break;case"/":result=ev(left,c)/ev(right,c);break;case"%":result=ev(left,c)%ev(right,c);break;case"-":result=ev(left,c)-ev(right,c);break;case"<<":result=ev(left,c)<<ev(right,c);break;case">>":result=ev(left,c)>>ev(right,c);break;case">>>":result=ev(left,c)>>>ev(right,c);break;case"==":result=ev(left,c)==ev(right,c);break;case"===":result=ev(left,c)===ev(right,c);break;case"!=":result=ev(left,c)!=ev(right,c);break;case"!==":result=ev(left,c)!==ev(right,c);break;case"<":result=ev(left,c)<ev(right,c);break;case"<=":result=ev(left,c)<=ev(right,c);break;case">":result=ev(left,c)>ev(right,c);break;case">=":result=ev(left,c)>=ev(right,c);break;default:throw def}if(isNaN(result)&&c.find_parent(AST_With)){throw def}return result});def(AST_Conditional,function(compressor){return ev(this.condition,compressor)?ev(this.consequent,compressor):ev(this.alternative,compressor)});def(AST_SymbolRef,function(compressor){if(this._evaluating)throw def;this._evaluating=true;try{var d=this.definition();if(compressor.option("reduce_vars")&&d.fixed){if(compressor.option("unsafe")){if(!HOP(d.fixed,"_evaluated")){d.fixed._evaluated=ev(d.fixed,compressor)}return d.fixed._evaluated}return ev(d.fixed,compressor)}}finally{this._evaluating=false}throw def});def(AST_PropAccess,function(compressor){if(compressor.option("unsafe")){var key=this.property;if(key instanceof AST_Node){key=ev(key,compressor)}var val=ev(this.expression,compressor);if(val&&HOP(val,key)){return val[key]}}throw def})})(function(node,func){node.DEFMETHOD("_eval",func)});(function(def){function basic_negation(exp){return make_node(AST_UnaryPrefix,exp,{operator:"!",expression:exp})}function best(orig,alt,first_in_statement){var negated=basic_negation(orig);if(first_in_statement){var stat=make_node(AST_SimpleStatement,alt,{body:alt});return best_of(negated,stat)===stat?alt:negated}return best_of(negated,alt)}def(AST_Node,function(){return basic_negation(this)});def(AST_Statement,function(){throw new Error("Cannot negate a statement")});def(AST_Function,function(){return basic_negation(this)});def(AST_UnaryPrefix,function(){if(this.operator=="!")return this.expression;return basic_negation(this)});def(AST_Seq,function(compressor){var self=this.clone();self.cdr=self.cdr.negate(compressor);return self});def(AST_Conditional,function(compressor,first_in_statement){var self=this.clone();self.consequent=self.consequent.negate(compressor);self.alternative=self.alternative.negate(compressor);return best(this,self,first_in_statement)});def(AST_Binary,function(compressor,first_in_statement){var self=this.clone(),op=this.operator;if(compressor.option("unsafe_comps")){switch(op){case"<=":self.operator=">";return self;case"<":self.operator=">=";return self;case">=":self.operator="<";return self;case">":self.operator="<=";return self}}switch(op){case"==":self.operator="!=";return self;case"!=":self.operator="==";return self;case"===":self.operator="!==";return self;case"!==":self.operator="===";return self;case"&&":self.operator="||";self.left=self.left.negate(compressor,first_in_statement);self.right=self.right.negate(compressor);return best(this,self,first_in_statement);case"||":self.operator="&&";self.left=self.left.negate(compressor,first_in_statement);self.right=self.right.negate(compressor);return best(this,self,first_in_statement)}return basic_negation(this)})})(function(node,func){node.DEFMETHOD("negate",function(compressor,first_in_statement){return func.call(this,compressor,first_in_statement)})});AST_Call.DEFMETHOD("has_pure_annotation",function(compressor){if(!compressor.option("side_effects"))return false;if(this.pure!==undefined)return this.pure;var pure=false;var comments,last_comment;if(this.start&&(comments=this.start.comments_before)&&comments.length&&/[@#]__PURE__/.test((last_comment=comments[comments.length-1]).value)){pure=last_comment}return this.pure=pure});(function(def){def(AST_Node,return_true);def(AST_EmptyStatement,return_false);def(AST_Constant,return_false);def(AST_This,return_false);def(AST_Call,function(compressor){if(!this.has_pure_annotation(compressor)&&compressor.pure_funcs(this))return true;for(var i=this.args.length;--i>=0;){if(this.args[i].has_side_effects(compressor))return true}return false});def(AST_Block,function(compressor){for(var i=this.body.length;--i>=0;){if(this.body[i].has_side_effects(compressor))return true}return false});def(AST_SimpleStatement,function(compressor){return this.body.has_side_effects(compressor)});def(AST_Defun,return_true)
+;def(AST_Function,return_false);def(AST_Binary,function(compressor){return this.left.has_side_effects(compressor)||this.right.has_side_effects(compressor)});def(AST_Assign,return_true);def(AST_Conditional,function(compressor){return this.condition.has_side_effects(compressor)||this.consequent.has_side_effects(compressor)||this.alternative.has_side_effects(compressor)});def(AST_Unary,function(compressor){return this.operator=="delete"||this.operator=="++"||this.operator=="--"||this.expression.has_side_effects(compressor)});def(AST_SymbolRef,function(compressor){return this.global()&&this.undeclared()});def(AST_Object,function(compressor){for(var i=this.properties.length;--i>=0;)if(this.properties[i].has_side_effects(compressor))return true;return false});def(AST_ObjectProperty,function(compressor){return this.value.has_side_effects(compressor)});def(AST_Array,function(compressor){for(var i=this.elements.length;--i>=0;)if(this.elements[i].has_side_effects(compressor))return true;return false});def(AST_Dot,function(compressor){if(!compressor.option("pure_getters"))return true;return this.expression.has_side_effects(compressor)});def(AST_Sub,function(compressor){if(!compressor.option("pure_getters"))return true;return this.expression.has_side_effects(compressor)||this.property.has_side_effects(compressor)});def(AST_PropAccess,function(compressor){return!compressor.option("pure_getters")});def(AST_Seq,function(compressor){return this.car.has_side_effects(compressor)||this.cdr.has_side_effects(compressor)})})(function(node,func){node.DEFMETHOD("has_side_effects",func)});function aborts(thing){return thing&&thing.aborts()}(function(def){def(AST_Statement,function(){return null});def(AST_Jump,function(){return this});function block_aborts(){var n=this.body.length;return n>0&&aborts(this.body[n-1])}def(AST_BlockStatement,block_aborts);def(AST_SwitchBranch,block_aborts);def(AST_If,function(){return this.alternative&&aborts(this.body)&&aborts(this.alternative)&&this})})(function(node,func){node.DEFMETHOD("aborts",func)});OPT(AST_Directive,function(self,compressor){if(compressor.has_directive(self.value)==="up"){return make_node(AST_EmptyStatement,self)}return self});OPT(AST_Debugger,function(self,compressor){if(compressor.option("drop_debugger"))return make_node(AST_EmptyStatement,self);return self});OPT(AST_LabeledStatement,function(self,compressor){if(self.body instanceof AST_Break&&compressor.loopcontrol_target(self.body.label)===self.body){return make_node(AST_EmptyStatement,self)}return self.label.references.length==0?self.body:self});OPT(AST_Block,function(self,compressor){self.body=tighten_body(self.body,compressor);return self});OPT(AST_BlockStatement,function(self,compressor){self.body=tighten_body(self.body,compressor);switch(self.body.length){case 1:return self.body[0];case 0:return make_node(AST_EmptyStatement,self)}return self});AST_Scope.DEFMETHOD("drop_unused",function(compressor){var self=this;if(compressor.has_directive("use asm"))return self;var toplevel=compressor.option("toplevel");if(compressor.option("unused")&&(!(self instanceof AST_Toplevel)||toplevel)&&!self.uses_eval&&!self.uses_with){var assign_as_unused=!/keep_assign/.test(compressor.option("unused"));var drop_funcs=/funcs/.test(toplevel);var drop_vars=/vars/.test(toplevel);if(!(self instanceof AST_Toplevel)||toplevel==true){drop_funcs=drop_vars=true}var in_use=[];var in_use_ids=Object.create(null);if(self instanceof AST_Toplevel&&compressor.top_retain){self.variables.each(function(def){if(compressor.top_retain(def)&&!(def.id in in_use_ids)){in_use_ids[def.id]=true;in_use.push(def)}})}var initializations=new Dictionary;var scope=this;var tw=new TreeWalker(function(node,descend){if(node!==self){if(node instanceof AST_Defun){if(!drop_funcs&&scope===self){var node_def=node.name.definition();if(!(node_def.id in in_use_ids)){in_use_ids[node_def.id]=true;in_use.push(node_def)}}initializations.add(node.name.name,node);return true}if(node instanceof AST_Definitions&&scope===self){node.definitions.forEach(function(def){if(!drop_vars){var node_def=def.name.definition();if(!(node_def.id in in_use_ids)){in_use_ids[node_def.id]=true;in_use.push(node_def)}}if(def.value){initializations.add(def.name.name,def.value);if(def.value.has_side_effects(compressor)){def.value.walk(tw)}}});return true}if(assign_as_unused&&node instanceof AST_Assign&&node.operator=="="&&node.left instanceof AST_SymbolRef&&scope===self){node.right.walk(tw);return true}if(node instanceof AST_SymbolRef){var node_def=node.definition();if(!(node_def.id in in_use_ids)){in_use_ids[node_def.id]=true;in_use.push(node_def)}return true}if(node instanceof AST_Scope){var save_scope=scope;scope=node;descend();scope=save_scope;return true}}});self.walk(tw);for(var i=0;i<in_use.length;++i){in_use[i].orig.forEach(function(decl){var init=initializations.get(decl.name);if(init)init.forEach(function(init){var tw=new TreeWalker(function(node){if(node instanceof AST_SymbolRef){var node_def=node.definition();if(!(node_def.id in in_use_ids)){in_use_ids[node_def.id]=true;in_use.push(node_def)}}});init.walk(tw)})})}var tt=new TreeTransformer(function before(node,descend,in_list){if(node instanceof AST_Function&&node.name&&!compressor.option("keep_fnames")&&!(node.name.definition().id in in_use_ids)){node.name=null}if(node instanceof AST_Lambda&&!(node instanceof AST_Accessor)){if(!compressor.option("keep_fargs")){for(var a=node.argnames,i=a.length;--i>=0;){var sym=a[i];if(!(sym.definition().id in in_use_ids)){a.pop();compressor.warn("Dropping unused function argument {name} [{file}:{line},{col}]",{name:sym.name,file:sym.start.file,line:sym.start.line,col:sym.start.col})}else break}}}if(drop_funcs&&node instanceof AST_Defun&&node!==self){if(!(node.name.definition().id in in_use_ids)){compressor.warn("Dropping unused function {name} [{file}:{line},{col}]",{name:node.name.name,file:node.name.start.file,line:node.name.start.line,col:node.name.start.col});return make_node(AST_EmptyStatement,node)}return node}if(drop_vars&&node instanceof AST_Definitions&&!(tt.parent()instanceof AST_ForIn)){var def=node.definitions.filter(function(def){if(def.name.definition().id in in_use_ids)return true;var w={name:def.name.name,file:def.name.start.file,line:def.name.start.line,col:def.name.start.col};if(def.value&&(def._unused_side_effects=def.value.drop_side_effect_free(compressor))){compressor.warn("Side effects in initialization of unused variable {name} [{file}:{line},{col}]",w);return true}compressor.warn("Dropping unused variable {name} [{file}:{line},{col}]",w);return false});def=mergeSort(def,function(a,b){if(!a.value&&b.value)return-1;if(!b.value&&a.value)return 1;return 0});var side_effects=[];for(var i=0;i<def.length;){var x=def[i];if(x._unused_side_effects){side_effects.push(x._unused_side_effects);def.splice(i,1)}else{if(side_effects.length>0){side_effects.push(x.value);x.value=AST_Seq.from_array(side_effects);side_effects=[]}++i}}if(side_effects.length>0){side_effects=make_node(AST_BlockStatement,node,{body:[make_node(AST_SimpleStatement,node,{body:AST_Seq.from_array(side_effects)})]})}else{side_effects=null}if(def.length==0&&!side_effects){return make_node(AST_EmptyStatement,node)}if(def.length==0){return in_list?MAP.splice(side_effects.body):side_effects}node.definitions=def;if(side_effects){side_effects.body.unshift(node);return in_list?MAP.splice(side_effects.body):side_effects}return node}if(drop_vars&&assign_as_unused){var n=node;while(n instanceof AST_Assign&&n.operator=="="&&n.left instanceof AST_SymbolRef){var def=n.left.definition();if(def.id in in_use_ids||self.variables.get(def.name)!==def)break;n=n.right}if(n!==node)return n}if(node instanceof AST_For){descend(node,this);if(node.init instanceof AST_BlockStatement){var body=node.init.body.slice(0,-1);node.init=node.init.body.slice(-1)[0].body;body.push(node);return in_list?MAP.splice(body):make_node(AST_BlockStatement,node,{body:body})}}if(node instanceof AST_Scope&&node!==self)return node});self.transform(tt)}});AST_Scope.DEFMETHOD("hoist_declarations",function(compressor){var self=this;if(compressor.has_directive("use asm"))return self;var hoist_funs=compressor.option("hoist_funs");var hoist_vars=compressor.option("hoist_vars");if(hoist_funs||hoist_vars){var dirs=[];var hoisted=[];var vars=new Dictionary,vars_found=0,var_decl=0;self.walk(new TreeWalker(function(node){if(node instanceof AST_Scope&&node!==self)return true;if(node instanceof AST_Var){++var_decl;return true}}));hoist_vars=hoist_vars&&var_decl>1;var tt=new TreeTransformer(function before(node){if(node!==self){if(node instanceof AST_Directive){dirs.push(node);return make_node(AST_EmptyStatement,node)}if(node instanceof AST_Defun&&hoist_funs){hoisted.push(node);return make_node(AST_EmptyStatement,node)}if(node instanceof AST_Var&&hoist_vars){node.definitions.forEach(function(def){vars.set(def.name.name,def);++vars_found});var seq=node.to_assignments();var p=tt.parent();if(p instanceof AST_ForIn&&p.init===node){if(seq==null){var def=node.definitions[0].name;return make_node(AST_SymbolRef,def,def)}return seq}if(p instanceof AST_For&&p.init===node){return seq}if(!seq)return make_node(AST_EmptyStatement,node);return make_node(AST_SimpleStatement,node,{body:seq})}if(node instanceof AST_Scope)return node}});self=self.transform(tt);if(vars_found>0){var defs=[];vars.each(function(def,name){if(self instanceof AST_Lambda&&find_if(function(x){return x.name==def.name.name},self.argnames)){vars.del(name)}else{def=def.clone();def.value=null;defs.push(def);vars.set(name,def)}});if(defs.length>0){for(var i=0;i<self.body.length;){if(self.body[i]instanceof AST_SimpleStatement){var expr=self.body[i].body,sym,assign;if(expr instanceof AST_Assign&&expr.operator=="="&&(sym=expr.left)instanceof AST_Symbol&&vars.has(sym.name)){var def=vars.get(sym.name);if(def.value)break;def.value=expr.right;remove(defs,def);defs.push(def);self.body.splice(i,1);continue}if(expr instanceof AST_Seq&&(assign=expr.car)instanceof AST_Assign&&assign.operator=="="&&(sym=assign.left)instanceof AST_Symbol&&vars.has(sym.name)){var def=vars.get(sym.name);if(def.value)break;def.value=assign.right;remove(defs,def);defs.push(def);self.body[i].body=expr.cdr;continue}}if(self.body[i]instanceof AST_EmptyStatement){self.body.splice(i,1);continue}if(self.body[i]instanceof AST_BlockStatement){var tmp=[i,1].concat(self.body[i].body);self.body.splice.apply(self.body,tmp);continue}break}defs=make_node(AST_Var,self,{definitions:defs});hoisted.push(defs)}}self.body=dirs.concat(hoisted,self.body)}return self});(function(def){function return_this(){return this}function return_null(){return null}function trim(nodes,compressor,first_in_statement){var ret=[],changed=false;for(var i=0,len=nodes.length;i<len;i++){var node=nodes[i].drop_side_effect_free(compressor,first_in_statement);changed|=node!==nodes[i];if(node){ret.push(node);first_in_statement=false}}return changed?ret.length?ret:null:nodes}def(AST_Node,return_this);def(AST_Constant,return_null);def(AST_This,return_null);def(AST_Call,function(compressor,first_in_statement){if(!this.has_pure_annotation(compressor)&&compressor.pure_funcs(this))return this;if(this.pure){compressor.warn("Dropping __PURE__ call [{file}:{line},{col}]",this.start);this.pure.value=this.pure.value.replace(/[@#]__PURE__/g," ")}var args=trim(this.args,compressor,first_in_statement);return args&&AST_Seq.from_array(args)});def(AST_Function,return_null);def(AST_Binary,function(compressor,first_in_statement){var right=this.right.drop_side_effect_free(compressor);if(!right)return this.left.drop_side_effect_free(compressor,first_in_statement);switch(this.operator){case"&&":case"||":var node=this.clone();node.right=right;return node;default:var left=this.left.drop_side_effect_free(compressor,first_in_statement);if(!left)return this.right.drop_side_effect_free(compressor,first_in_statement);return make_node(AST_Seq,this,{car:left,cdr:right})}});def(AST_Assign,return_this);def(AST_Conditional,function(compressor){var consequent=this.consequent.drop_side_effect_free(compressor);var alternative=this.alternative.drop_side_effect_free(compressor);if(consequent===this.consequent&&alternative===this.alternative)return this;if(!consequent)return alternative?make_node(AST_Binary,this,{operator:"||",left:this.condition,right:alternative}):this.condition.drop_side_effect_free(compressor);if(!alternative)return make_node(AST_Binary,this,{operator:"&&",left:this.condition,right:consequent});var node=this.clone();node.consequent=consequent;node.alternative=alternative;return node});def(AST_Unary,function(compressor,first_in_statement){switch(this.operator){case"delete":case"++":case"--":return this;case"typeof":if(this.expression instanceof AST_SymbolRef)return null;default:var expression=this.expression.drop_side_effect_free(compressor,first_in_statement);if(first_in_statement&&this instanceof AST_UnaryPrefix&&is_iife_call(expression)){if(expression===this.expression&&this.operator.length===1)return this;return make_node(AST_UnaryPrefix,this,{operator:this.operator.length===1?this.operator:"!",expression:expression})}return expression}});def(AST_SymbolRef,function(){return this.undeclared()?this:null});def(AST_Object,function(compressor,first_in_statement){var values=trim(this.properties,compressor,first_in_statement);return values&&AST_Seq.from_array(values)});def(AST_ObjectProperty,function(compressor,first_in_statement){return this.value.drop_side_effect_free(compressor,first_in_statement)});def(AST_Array,function(compressor,first_in_statement){var values=trim(this.elements,compressor,first_in_statement);return values&&AST_Seq.from_array(values)});def(AST_Dot,function(compressor,first_in_statement){if(!compressor.option("pure_getters"))return this;return this.expression.drop_side_effect_free(compressor,first_in_statement)});def(AST_Sub,function(compressor,first_in_statement){if(!compressor.option("pure_getters"))return this;var expression=this.expression.drop_side_effect_free(compressor,first_in_statement);if(!expression)return this.property.drop_side_effect_free(compressor,first_in_statement);var property=this.property.drop_side_effect_free(compressor);if(!property)return expression;return make_node(AST_Seq,this,{car:expression,cdr:property})});def(AST_Seq,function(compressor){var cdr=this.cdr.drop_side_effect_free(compressor);if(cdr===this.cdr)return this;if(!cdr)return this.car;return make_node(AST_Seq,this,{car:this.car,cdr:cdr})})})(function(node,func){node.DEFMETHOD("drop_side_effect_free",func)});OPT(AST_SimpleStatement,function(self,compressor){if(compressor.option("side_effects")){var body=self.body;var node=body.drop_side_effect_free(compressor,true);if(!node){compressor.warn("Dropping side-effect-free statement [{file}:{line},{col}]",self.start);return make_node(AST_EmptyStatement,self)}if(node!==body){return make_node(AST_SimpleStatement,self,{body:node})}}return self});OPT(AST_DWLoop,function(self,compressor){var cond=self.condition.evaluate(compressor);self.condition=cond[0];if(!compressor.option("loops"))return self;if(cond.length>1){if(cond[1]){return make_node(AST_For,self,{body:self.body})}else if(self instanceof AST_While){if(compressor.option("dead_code")){var a=[];extract_declarations_from_unreachable_code(compressor,self.body,a);return make_node(AST_BlockStatement,self,{body:a})}}else{return self}}if(self instanceof AST_While){return make_node(AST_For,self,self).transform(compressor)}return self});function if_break_in_loop(self,compressor){function drop_it(rest){rest=as_statement_array(rest);if(self.body instanceof AST_BlockStatement){self.body=self.body.clone();self.body.body=rest.concat(self.body.body.slice(1));self.body=self.body.transform(compressor)}else{self.body=make_node(AST_BlockStatement,self.body,{body:rest}).transform(compressor)}if_break_in_loop(self,compressor)}var first=self.body instanceof AST_BlockStatement?self.body.body[0]:self.body;if(first instanceof AST_If){if(first.body instanceof AST_Break&&compressor.loopcontrol_target(first.body.label)===self){if(self.condition){self.condition=make_node(AST_Binary,self.condition,{left:self.condition,operator:"&&",right:first.condition.negate(compressor)})}else{self.condition=first.condition.negate(compressor)}drop_it(first.alternative)}else if(first.alternative instanceof AST_Break&&compressor.loopcontrol_target(first.alternative.label)===self){if(self.condition){self.condition=make_node(AST_Binary,self.condition,{left:self.condition,operator:"&&",right:first.condition})}else{self.condition=first.condition}drop_it(first.body)}}}OPT(AST_For,function(self,compressor){var cond=self.condition;if(cond){cond=cond.evaluate(compressor);self.condition=cond[0]}if(!compressor.option("loops"))return self;if(cond){if(cond.length>1&&!cond[1]){if(compressor.option("dead_code")){var a=[];if(self.init instanceof AST_Statement){a.push(self.init)}else if(self.init){a.push(make_node(AST_SimpleStatement,self.init,{body:self.init}))}extract_declarations_from_unreachable_code(compressor,self.body,a);return make_node(AST_BlockStatement,self,{body:a})}}}if_break_in_loop(self,compressor);return self});OPT(AST_If,function(self,compressor){if(is_empty(self.alternative))self.alternative=null;if(!compressor.option("conditionals"))return self;var cond=self.condition.evaluate(compressor);self.condition=cond[0];if(cond.length>1){if(cond[1]){compressor.warn("Condition always true [{file}:{line},{col}]",self.condition.start);if(compressor.option("dead_code")){var a=[];if(self.alternative){extract_declarations_from_unreachable_code(compressor,self.alternative,a)}a.push(self.body);return make_node(AST_BlockStatement,self,{body:a}).transform(compressor)}}else{compressor.warn("Condition always false [{file}:{line},{col}]",self.condition.start);if(compressor.option("dead_code")){var a=[];extract_declarations_from_unreachable_code(compressor,self.body,a);if(self.alternative)a.push(self.alternative);return make_node(AST_BlockStatement,self,{body:a}).transform(compressor)}}}var negated=self.condition.negate(compressor);var self_condition_length=self.condition.print_to_string().length;var negated_length=negated.print_to_string().length;var negated_is_best=negated_length<self_condition_length;if(self.alternative&&negated_is_best){negated_is_best=false;self.condition=negated;var tmp=self.body;self.body=self.alternative||make_node(AST_EmptyStatement,self);self.alternative=tmp}if(is_empty(self.body)&&is_empty(self.alternative)){return make_node(AST_SimpleStatement,self.condition,{body:self.condition}).transform(compressor)}if(self.body instanceof AST_SimpleStatement&&self.alternative instanceof AST_SimpleStatement){return make_node(AST_SimpleStatement,self,{body:make_node(AST_Conditional,self,{condition:self.condition,consequent:statement_to_expression(self.body),alternative:statement_to_expression(self.alternative)})}).transform(compressor)}if(is_empty(self.alternative)&&self.body instanceof AST_SimpleStatement){if(self_condition_length===negated_length&&!negated_is_best&&self.condition instanceof AST_Binary&&self.condition.operator=="||"){negated_is_best=true}if(negated_is_best)return make_node(AST_SimpleStatement,self,{body:make_node(AST_Binary,self,{operator:"||",left:negated,right:statement_to_expression(self.body)})}).transform(compressor);return make_node(AST_SimpleStatement,self,{body:make_node(AST_Binary,self,{operator:"&&",left:self.condition,right:statement_to_expression(self.body)})}).transform(compressor)}if(self.body instanceof AST_EmptyStatement&&self.alternative&&self.alternative instanceof AST_SimpleStatement){return make_node(AST_SimpleStatement,self,{body:make_node(AST_Binary,self,{operator:"||",left:self.condition,right:statement_to_expression(self.alternative)})}).transform(compressor)}if(self.body instanceof AST_Exit&&self.alternative instanceof AST_Exit&&self.body.TYPE==self.alternative.TYPE){return make_node(self.body.CTOR,self,{value:make_node(AST_Conditional,self,{condition:self.condition,consequent:self.body.value||make_node(AST_Undefined,self.body).optimize(compressor),alternative:self.alternative.value||make_node(AST_Undefined,self.alternative).optimize(compressor)})}).transform(compressor)}if(self.body instanceof AST_If&&!self.body.alternative&&!self.alternative){self.condition=make_node(AST_Binary,self.condition,{operator:"&&",left:self.condition,right:self.body.condition}).transform(compressor);self.body=self.body.body}if(aborts(self.body)){if(self.alternative){var alt=self.alternative;self.alternative=null;return make_node(AST_BlockStatement,self,{body:[self,alt]}).transform(compressor)}}if(aborts(self.alternative)){var body=self.body;self.body=self.alternative;self.condition=negated_is_best?negated:self.condition.negate(compressor);self.alternative=null;return make_node(AST_BlockStatement,self,{body:[self,body]}).transform(compressor)}return self});OPT(AST_Switch,function(self,compressor){if(self.body.length==0&&compressor.option("conditionals")){return make_node(AST_SimpleStatement,self,{body:self.expression}).transform(compressor)}for(;;){var last_branch=self.body[self.body.length-1];if(last_branch){var stat=last_branch.body[last_branch.body.length-1];if(stat instanceof AST_Break&&loop_body(compressor.loopcontrol_target(stat.label))===self)last_branch.body.pop();if(last_branch instanceof AST_Default&&last_branch.body.length==0){self.body.pop();continue}}break}var exp=self.expression.evaluate(compressor);out:if(exp.length==2)try{self.expression=exp[0];if(!compressor.option("dead_code"))break out;var value=exp[1];var in_if=false;var in_block=false;var started=false;var stopped=false;var ruined=false;var tt=new TreeTransformer(function(node,descend,in_list){if(node instanceof AST_Lambda||node instanceof AST_SimpleStatement){return node}else if(node instanceof AST_Switch&&node===self){node=node.clone();descend(node,this);return ruined?node:make_node(AST_BlockStatement,node,{body:node.body.reduce(function(a,branch){return a.concat(branch.body)},[])}).transform(compressor)}else if(node instanceof AST_If||node instanceof AST_Try){var save=in_if;in_if=!in_block;descend(node,this);in_if=save;return node}else if(node instanceof AST_StatementWithBody||node instanceof AST_Switch){var save=in_block;in_block=true;descend(node,this);in_block=save;return node}else if(node instanceof AST_Break&&this.loopcontrol_target(node.label)===self){if(in_if){ruined=true;return node}if(in_block)return node;stopped=true;return in_list?MAP.skip:make_node(AST_EmptyStatement,node)}else if(node instanceof AST_SwitchBranch&&this.parent()===self){if(stopped)return MAP.skip;if(node instanceof AST_Case){var exp=node.expression.evaluate(compressor);if(exp.length<2){throw self}if(exp[1]===value||started){started=true;if(aborts(node))stopped=true;descend(node,this);return node}return MAP.skip}descend(node,this);return node}});tt.stack=compressor.stack.slice();self=self.transform(tt)}catch(ex){if(ex!==self)throw ex}return self});OPT(AST_Case,function(self,compressor){self.body=tighten_body(self.body,compressor);return self});OPT(AST_Try,function(self,compressor){self.body=tighten_body(self.body,compressor);return self});AST_Definitions.DEFMETHOD("remove_initializers",function(){this.definitions.forEach(function(def){def.value=null})});AST_Definitions.DEFMETHOD("to_assignments",function(){var assignments=this.definitions.reduce(function(a,def){if(def.value){var name=make_node(AST_SymbolRef,def.name,def.name);a.push(make_node(AST_Assign,def,{operator:"=",left:name,right:def.value}))}return a},[]);if(assignments.length==0)return null;return AST_Seq.from_array(assignments)});OPT(AST_Definitions,function(self,compressor){if(self.definitions.length==0)return make_node(AST_EmptyStatement,self);return self});OPT(AST_Call,function(self,compressor){if(compressor.option("unused")&&self.expression instanceof AST_Function&&!self.expression.uses_arguments&&!self.expression.uses_eval&&self.args.length>self.expression.argnames.length){var end=self.expression.argnames.length;for(var i=end,len=self.args.length;i<len;i++){var node=self.args[i].drop_side_effect_free(compressor);if(node){self.args[end++]=node}}self.args.length=end}if(compressor.option("unsafe")){var exp=self.expression;if(exp instanceof AST_SymbolRef&&exp.undeclared()){switch(exp.name){case"Array":if(self.args.length!=1){return make_node(AST_Array,self,{elements:self.args}).transform(compressor)}break;case"Object":if(self.args.length==0){return make_node(AST_Object,self,{properties:[]})}break;case"String":if(self.args.length==0)return make_node(AST_String,self,{value:""});if(self.args.length<=1)return make_node(AST_Binary,self,{left:self.args[0],operator:"+",right:make_node(AST_String,self,{value:""})}).transform(compressor);break;case"Number":if(self.args.length==0)return make_node(AST_Number,self,{value:0});if(self.args.length==1)return make_node(AST_UnaryPrefix,self,{expression:self.args[0],operator:"+"}).transform(compressor);case"Boolean":if(self.args.length==0)return make_node(AST_False,self);if(self.args.length==1)return make_node(AST_UnaryPrefix,self,{expression:make_node(AST_UnaryPrefix,self,{expression:self.args[0],operator:"!"}),operator:"!"}).transform(compressor);break;case"Function":if(self.args.length==0)return make_node(AST_Function,self,{argnames:[],body:[]});if(all(self.args,function(x){return x instanceof AST_String})){try{var code="(function("+self.args.slice(0,-1).map(function(arg){return arg.value}).join(",")+"){"+self.args[self.args.length-1].value+"})()";var ast=parse(code);ast.figure_out_scope({screw_ie8:compressor.option("screw_ie8")});var comp=new Compressor(compressor.options);ast=ast.transform(comp);ast.figure_out_scope({screw_ie8:compressor.option("screw_ie8")});ast.mangle_names();var fun;try{ast.walk(new TreeWalker(function(node){if(node instanceof AST_Lambda){fun=node;throw ast}}))}catch(ex){if(ex!==ast)throw ex}if(!fun)return self;var args=fun.argnames.map(function(arg,i){return make_node(AST_String,self.args[i],{value:arg.print_to_string()})});var code=OutputStream();AST_BlockStatement.prototype._codegen.call(fun,fun,code);code=code.toString().replace(/^\{|\}$/g,"");args.push(make_node(AST_String,self.args[self.args.length-1],{value:code}));self.args=args;return self}catch(ex){if(ex instanceof JS_Parse_Error){compressor.warn("Error parsing code passed to new Function [{file}:{line},{col}]",self.args[self.args.length-1].start);compressor.warn(ex.toString())}else{console.log(ex);throw ex}}}break}}else if(exp instanceof AST_Dot&&exp.property=="toString"&&self.args.length==0){return make_node(AST_Binary,self,{left:make_node(AST_String,self,{value:""}),operator:"+",right:exp.expression}).transform(compressor)}else if(exp instanceof AST_Dot&&exp.expression instanceof AST_Array&&exp.property=="join")EXIT:{var separator;if(self.args.length>0){separator=self.args[0].evaluate(compressor);if(separator.length<2)break EXIT;separator=separator[1]}var elements=[];var consts=[];exp.expression.elements.forEach(function(el){el=el.evaluate(compressor);if(el.length>1){consts.push(el[1])}else{if(consts.length>0){elements.push(make_node(AST_String,self,{value:consts.join(separator)}));consts.length=0}elements.push(el[0])}});if(consts.length>0){elements.push(make_node(AST_String,self,{value:consts.join(separator)}))}if(elements.length==0)return make_node(AST_String,self,{value:""});if(elements.length==1){if(elements[0].is_string(compressor)){return elements[0]}return make_node(AST_Binary,elements[0],{operator:"+",left:make_node(AST_String,self,{value:""}),right:elements[0]})}if(separator==""){var first;if(elements[0].is_string(compressor)||elements[1].is_string(compressor)){first=elements.shift()}else{first=make_node(AST_String,self,{value:""})}return elements.reduce(function(prev,el){return make_node(AST_Binary,el,{operator:"+",left:prev,right:el})},first).transform(compressor)}var node=self.clone();node.expression=node.expression.clone();node.expression.expression=node.expression.expression.clone();node.expression.expression.elements=elements;return best_of(self,node)}}if(compressor.option("side_effects")){if(self.expression instanceof AST_Function&&self.args.length==0&&!AST_Block.prototype.has_side_effects.call(self.expression,compressor)){return make_node(AST_Undefined,self).transform(compressor)}}if(compressor.option("drop_console")){if(self.expression instanceof AST_PropAccess){var name=self.expression.expression;while(name.expression){name=name.expression}if(name instanceof AST_SymbolRef&&name.name=="console"&&name.undeclared()){return make_node(AST_Undefined,self).transform(compressor)}}}if(self.args.length==0&&self.expression instanceof AST_Function&&self.expression.body[0]instanceof AST_Return&&self.expression.body[0].value.is_constant()){return self.expression.body[0].value}if(compressor.option("negate_iife")&&compressor.parent()instanceof AST_SimpleStatement&&is_iife_call(self)){return self.negate(compressor,true)}return self});OPT(AST_New,function(self,compressor){if(compressor.option("unsafe")){var exp=self.expression;if(exp instanceof AST_SymbolRef&&exp.undeclared()){switch(exp.name){case"Object":case"RegExp":case"Function":case"Error":case"Array":return make_node(AST_Call,self,self).transform(compressor)}}}return self});OPT(AST_Seq,function(self,compressor){if(!compressor.option("side_effects"))return self;self.car=self.car.drop_side_effect_free(compressor,first_in_statement(compressor));if(!self.car)return maintain_this_binding(compressor.parent(),self,self.cdr);if(compressor.option("cascade")){if(self.car instanceof AST_Assign&&!self.car.left.has_side_effects(compressor)){if(self.car.left.equivalent_to(self.cdr)){return self.car}if(self.cdr instanceof AST_Call&&self.cdr.expression.equivalent_to(self.car.left)){self.cdr.expression=self.car;return self.cdr}}if(!self.car.has_side_effects(compressor)&&self.car.equivalent_to(self.cdr)){return self.car}}if(self.cdr instanceof AST_Undefined){return make_node(AST_UnaryPrefix,self,{operator:"void",expression:self.car})}return self});AST_Unary.DEFMETHOD("lift_sequences",function(compressor){if(compressor.option("sequences")){if(this.expression instanceof AST_Seq){var seq=this.expression;var x=seq.to_array();this.expression=x.pop();x.push(this);seq=AST_Seq.from_array(x).transform(compressor);return seq}}return this});OPT(AST_UnaryPostfix,function(self,compressor){return self.lift_sequences(compressor)});OPT(AST_UnaryPrefix,function(self,compressor){var seq=self.lift_sequences(compressor);if(seq!==self){return seq}var e=self.expression;if(compressor.option("side_effects")&&self.operator=="void"){e=e.drop_side_effect_free(compressor);if(e){self.expression=e;return self}else{return make_node(AST_Undefined,self)}}if(compressor.option("booleans")&&compressor.in_boolean_context()){switch(self.operator){case"!":if(e instanceof AST_UnaryPrefix&&e.operator=="!"){return e.expression}if(e instanceof AST_Binary){var statement=first_in_statement(compressor);self=(statement?best_of_statement:best_of)(self,e.negate(compressor,statement))}break;case"typeof":compressor.warn("Boolean expression always true [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:e,cdr:make_node(AST_True,self)}).optimize(compressor)}}return self.evaluate(compressor)[0]});function has_side_effects_or_prop_access(node,compressor){var save_pure_getters=compressor.option("pure_getters");compressor.options.pure_getters=false;var ret=node.has_side_effects(compressor);compressor.options.pure_getters=save_pure_getters;return ret}AST_Binary.DEFMETHOD("lift_sequences",function(compressor){if(compressor.option("sequences")){if(this.left instanceof AST_Seq){var seq=this.left;var x=seq.to_array();this.left=x.pop();x.push(this);seq=AST_Seq.from_array(x).transform(compressor);return seq}if(this.right instanceof AST_Seq&&this instanceof AST_Assign&&!has_side_effects_or_prop_access(this.left,compressor)){var seq=this.right;var x=seq.to_array();this.right=x.pop();x.push(this)
+;seq=AST_Seq.from_array(x).transform(compressor);return seq}}return this});var commutativeOperators=makePredicate("== === != !== * & | ^");OPT(AST_Binary,function(self,compressor){var lhs=self.left.evaluate(compressor);var rhs=self.right.evaluate(compressor);if(lhs.length>1&&lhs[0].is_constant()!==self.left.is_constant()||rhs.length>1&&rhs[0].is_constant()!==self.right.is_constant()){return make_node(AST_Binary,self,{operator:self.operator,left:lhs[0],right:rhs[0]}).optimize(compressor)}function reverse(op,force){if(force||!(self.left.has_side_effects(compressor)||self.right.has_side_effects(compressor))){if(op)self.operator=op;var tmp=self.left;self.left=self.right;self.right=tmp}}if(commutativeOperators(self.operator)){if(self.right instanceof AST_Constant&&!(self.left instanceof AST_Constant)){if(!(self.left instanceof AST_Binary&&PRECEDENCE[self.left.operator]>=PRECEDENCE[self.operator])){reverse(null,true)}}if(/^[!=]==?$/.test(self.operator)){if(self.left instanceof AST_SymbolRef&&self.right instanceof AST_Conditional){if(self.right.consequent instanceof AST_SymbolRef&&self.right.consequent.definition()===self.left.definition()){if(/^==/.test(self.operator))return self.right.condition;if(/^!=/.test(self.operator))return self.right.condition.negate(compressor)}if(self.right.alternative instanceof AST_SymbolRef&&self.right.alternative.definition()===self.left.definition()){if(/^==/.test(self.operator))return self.right.condition.negate(compressor);if(/^!=/.test(self.operator))return self.right.condition}}if(self.right instanceof AST_SymbolRef&&self.left instanceof AST_Conditional){if(self.left.consequent instanceof AST_SymbolRef&&self.left.consequent.definition()===self.right.definition()){if(/^==/.test(self.operator))return self.left.condition;if(/^!=/.test(self.operator))return self.left.condition.negate(compressor)}if(self.left.alternative instanceof AST_SymbolRef&&self.left.alternative.definition()===self.right.definition()){if(/^==/.test(self.operator))return self.left.condition.negate(compressor);if(/^!=/.test(self.operator))return self.left.condition}}}}self=self.lift_sequences(compressor);if(compressor.option("comparisons"))switch(self.operator){case"===":case"!==":if(self.left.is_string(compressor)&&self.right.is_string(compressor)||self.left.is_boolean()&&self.right.is_boolean()){self.operator=self.operator.substr(0,2)}case"==":case"!=":if(self.left instanceof AST_String&&self.left.value=="undefined"&&self.right instanceof AST_UnaryPrefix&&self.right.operator=="typeof"){var expr=self.right.expression;if(expr instanceof AST_SymbolRef?!expr.undeclared():!(expr instanceof AST_PropAccess)||compressor.option("screw_ie8")){self.right=expr;self.left=make_node(AST_Undefined,self.left).optimize(compressor);if(self.operator.length==2)self.operator+="="}}break}if(compressor.option("booleans")&&compressor.in_boolean_context())switch(self.operator){case"&&":var ll=self.left.evaluate(compressor);var rr=self.right.evaluate(compressor);if(ll.length>1&&!ll[1]||rr.length>1&&!rr[1]){compressor.warn("Boolean && always false [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:self.left,cdr:make_node(AST_False,self)}).optimize(compressor)}if(ll.length>1&&ll[1]){return rr[0]}if(rr.length>1&&rr[1]){return ll[0]}break;case"||":var ll=self.left.evaluate(compressor);var rr=self.right.evaluate(compressor);if(ll.length>1&&ll[1]||rr.length>1&&rr[1]){compressor.warn("Boolean || always true [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:self.left,cdr:make_node(AST_True,self)}).optimize(compressor)}if(ll.length>1&&!ll[1]){return rr[0]}if(rr.length>1&&!rr[1]){return ll[0]}break;case"+":var ll=self.left.evaluate(compressor);var rr=self.right.evaluate(compressor);if(ll.length>1&&ll[0]instanceof AST_String&&ll[1]){compressor.warn("+ in boolean context always true [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:self.right,cdr:make_node(AST_True,self)}).optimize(compressor)}if(rr.length>1&&rr[0]instanceof AST_String&&rr[1]){compressor.warn("+ in boolean context always true [{file}:{line},{col}]",self.start);return make_node(AST_Seq,self,{car:self.left,cdr:make_node(AST_True,self)}).optimize(compressor)}break}if(compressor.option("comparisons")&&self.is_boolean()){if(!(compressor.parent()instanceof AST_Binary)||compressor.parent()instanceof AST_Assign){var statement=first_in_statement(compressor);var negated=make_node(AST_UnaryPrefix,self,{operator:"!",expression:self.negate(compressor,statement)});self=(statement?best_of_statement:best_of)(self,negated)}if(compressor.option("unsafe_comps")){switch(self.operator){case"<":reverse(">");break;case"<=":reverse(">=");break}}}if(self.operator=="+"){if(self.right instanceof AST_String&&self.right.getValue()==""&&self.left.is_string(compressor)){return self.left}if(self.left instanceof AST_String&&self.left.getValue()==""&&self.right.is_string(compressor)){return self.right}if(self.left instanceof AST_Binary&&self.left.operator=="+"&&self.left.left instanceof AST_String&&self.left.left.getValue()==""&&self.right.is_string(compressor)){self.left=self.left.right;return self.transform(compressor)}}if(compressor.option("evaluate")){switch(self.operator){case"&&":if(self.left.is_constant()){if(self.left.constant_value(compressor)){compressor.warn("Condition left of && always true [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.right)}else{compressor.warn("Condition left of && always false [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.left)}}break;case"||":if(self.left.is_constant()){if(self.left.constant_value(compressor)){compressor.warn("Condition left of || always true [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.left)}else{compressor.warn("Condition left of || always false [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.right)}}break}if(self.operator=="+"){if(self.left instanceof AST_Constant&&self.right instanceof AST_Binary&&self.right.operator=="+"&&self.right.left instanceof AST_Constant&&self.right.is_string(compressor)){self=make_node(AST_Binary,self,{operator:"+",left:make_node(AST_String,null,{value:""+self.left.getValue()+self.right.left.getValue(),start:self.left.start,end:self.right.left.end}),right:self.right.right})}if(self.right instanceof AST_Constant&&self.left instanceof AST_Binary&&self.left.operator=="+"&&self.left.right instanceof AST_Constant&&self.left.is_string(compressor)){self=make_node(AST_Binary,self,{operator:"+",left:self.left.left,right:make_node(AST_String,null,{value:""+self.left.right.getValue()+self.right.getValue(),start:self.left.right.start,end:self.right.end})})}if(self.left instanceof AST_Binary&&self.left.operator=="+"&&self.left.is_string(compressor)&&self.left.right instanceof AST_Constant&&self.right instanceof AST_Binary&&self.right.operator=="+"&&self.right.left instanceof AST_Constant&&self.right.is_string(compressor)){self=make_node(AST_Binary,self,{operator:"+",left:make_node(AST_Binary,self.left,{operator:"+",left:self.left.left,right:make_node(AST_String,null,{value:""+self.left.right.getValue()+self.right.left.getValue(),start:self.left.right.start,end:self.right.left.end})}),right:self.right.right})}}}if(self.right instanceof AST_Binary&&self.right.operator==self.operator&&(self.operator=="&&"||self.operator=="||"||self.operator=="+"&&(self.right.left.is_string(compressor)||self.left.is_string(compressor)&&self.right.right.is_string(compressor)))){self.left=make_node(AST_Binary,self.left,{operator:self.operator,left:self.left,right:self.right.left});self.right=self.right.right;return self.transform(compressor)}return self.evaluate(compressor)[0]});OPT(AST_SymbolRef,function(self,compressor){var def=self.resolve_defines(compressor);if(def){return def}if(self.undeclared()&&!isLHS(self,compressor.parent())&&(!self.scope.uses_with||!compressor.find_parent(AST_With))){switch(self.name){case"undefined":return make_node(AST_Undefined,self);case"NaN":return make_node(AST_NaN,self).transform(compressor);case"Infinity":return make_node(AST_Infinity,self).transform(compressor)}}if(compressor.option("evaluate")&&compressor.option("reduce_vars")){var d=self.definition();if(d.fixed){if(d.should_replace===undefined){var init=d.fixed.evaluate(compressor);if(init.length>1){var value=init[0].print_to_string().length;var name=d.name.length;var freq=d.references.length;var overhead=d.global||!freq?0:(name+2+value)/freq;d.should_replace=value<=name+overhead?init[0]:false}else{d.should_replace=false}}if(d.should_replace){return d.should_replace}}}return self});OPT(AST_Infinity,function(self,compressor){return make_node(AST_Binary,self,{operator:"/",left:make_node(AST_Number,self,{value:1}),right:make_node(AST_Number,self,{value:0})})});OPT(AST_Undefined,function(self,compressor){if(compressor.option("unsafe")){var scope=compressor.find_parent(AST_Scope);var undef=scope.find_variable("undefined");if(undef){return make_node(AST_SymbolRef,self,{name:"undefined",scope:scope,thedef:undef})}}return self});var ASSIGN_OPS=["+","-","/","*","%",">>","<<",">>>","|","^","&"];var ASSIGN_OPS_COMMUTATIVE=["*","|","^","&"];OPT(AST_Assign,function(self,compressor){self=self.lift_sequences(compressor);if(self.operator=="="&&self.left instanceof AST_SymbolRef&&self.right instanceof AST_Binary){if(self.right.left instanceof AST_SymbolRef&&self.right.left.name==self.left.name&&member(self.right.operator,ASSIGN_OPS)){self.operator=self.right.operator+"=";self.right=self.right.right}else if(self.right.right instanceof AST_SymbolRef&&self.right.right.name==self.left.name&&member(self.right.operator,ASSIGN_OPS_COMMUTATIVE)&&!self.right.left.has_side_effects(compressor)){self.operator=self.right.operator+"=";self.right=self.right.left}}return self});OPT(AST_Conditional,function(self,compressor){if(!compressor.option("conditionals"))return self;if(self.condition instanceof AST_Seq){var car=self.condition.car;self.condition=self.condition.cdr;return AST_Seq.cons(car,self)}var cond=self.condition.evaluate(compressor);if(cond.length>1){if(cond[1]){compressor.warn("Condition always true [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.consequent)}else{compressor.warn("Condition always false [{file}:{line},{col}]",self.start);return maintain_this_binding(compressor.parent(),self,self.alternative)}}var statement=first_in_statement(compressor);var negated=cond[0].negate(compressor,statement);if((statement?best_of_statement:best_of)(cond[0],negated)===negated){self=make_node(AST_Conditional,self,{condition:negated,consequent:self.alternative,alternative:self.consequent})}var consequent=self.consequent;var alternative=self.alternative;if(consequent instanceof AST_Assign&&alternative instanceof AST_Assign&&consequent.operator==alternative.operator&&consequent.left.equivalent_to(alternative.left)&&(!consequent.left.has_side_effects(compressor)||!self.condition.has_side_effects(compressor))){return make_node(AST_Assign,self,{operator:consequent.operator,left:consequent.left,right:make_node(AST_Conditional,self,{condition:self.condition,consequent:consequent.right,alternative:alternative.right})})}if(consequent instanceof AST_Call&&alternative.TYPE===consequent.TYPE&&consequent.args.length==1&&alternative.args.length==1&&consequent.expression.equivalent_to(alternative.expression)&&!consequent.expression.has_side_effects(compressor)){consequent.args[0]=make_node(AST_Conditional,self,{condition:self.condition,consequent:consequent.args[0],alternative:alternative.args[0]});return consequent}if(consequent instanceof AST_Conditional&&consequent.alternative.equivalent_to(alternative)){return make_node(AST_Conditional,self,{condition:make_node(AST_Binary,self,{left:self.condition,operator:"&&",right:consequent.condition}),consequent:consequent.consequent,alternative:alternative})}if(consequent.equivalent_to(alternative)){return make_node(AST_Seq,self,{car:self.condition,cdr:consequent}).optimize(compressor)}if(is_true(self.consequent)){if(is_false(self.alternative)){return booleanize(self.condition)}return make_node(AST_Binary,self,{operator:"||",left:booleanize(self.condition),right:self.alternative})}if(is_false(self.consequent)){if(is_true(self.alternative)){return booleanize(self.condition.negate(compressor))}return make_node(AST_Binary,self,{operator:"&&",left:booleanize(self.condition.negate(compressor)),right:self.alternative})}if(is_true(self.alternative)){return make_node(AST_Binary,self,{operator:"||",left:booleanize(self.condition.negate(compressor)),right:self.consequent})}if(is_false(self.alternative)){return make_node(AST_Binary,self,{operator:"&&",left:booleanize(self.condition),right:self.consequent})}return self;function booleanize(node){if(node.is_boolean())return node;return make_node(AST_UnaryPrefix,node,{operator:"!",expression:node.negate(compressor)})}function is_true(node){return node instanceof AST_True||node instanceof AST_UnaryPrefix&&node.operator=="!"&&node.expression instanceof AST_Constant&&!node.expression.value}function is_false(node){return node instanceof AST_False||node instanceof AST_UnaryPrefix&&node.operator=="!"&&node.expression instanceof AST_Constant&&!!node.expression.value}});OPT(AST_Boolean,function(self,compressor){if(compressor.option("booleans")){var p=compressor.parent();if(p instanceof AST_Binary&&(p.operator=="=="||p.operator=="!=")){compressor.warn("Non-strict equality against boolean: {operator} {value} [{file}:{line},{col}]",{operator:p.operator,value:self.value,file:p.start.file,line:p.start.line,col:p.start.col});return make_node(AST_Number,self,{value:+self.value})}return make_node(AST_UnaryPrefix,self,{operator:"!",expression:make_node(AST_Number,self,{value:1-self.value})})}return self});OPT(AST_Sub,function(self,compressor){var prop=self.property;if(prop instanceof AST_String&&compressor.option("properties")){prop=prop.getValue();if(RESERVED_WORDS(prop)?compressor.option("screw_ie8"):is_identifier_string(prop)){return make_node(AST_Dot,self,{expression:self.expression,property:prop}).optimize(compressor)}var v=parseFloat(prop);if(!isNaN(v)&&v.toString()==prop){self.property=make_node(AST_Number,self.property,{value:v})}}return self.evaluate(compressor)[0]});OPT(AST_Dot,function(self,compressor){var def=self.resolve_defines(compressor);if(def){return def}var prop=self.property;if(RESERVED_WORDS(prop)&&!compressor.option("screw_ie8")){return make_node(AST_Sub,self,{expression:self.expression,property:make_node(AST_String,self,{value:prop})}).optimize(compressor)}if(compressor.option("unsafe_proto")&&self.expression instanceof AST_Dot&&self.expression.property=="prototype"){var exp=self.expression.expression;if(exp instanceof AST_SymbolRef&&exp.undeclared())switch(exp.name){case"Array":self.expression=make_node(AST_Array,self.expression,{elements:[]});break;case"Object":self.expression=make_node(AST_Object,self.expression,{properties:[]});break;case"String":self.expression=make_node(AST_String,self.expression,{value:""});break}}return self.evaluate(compressor)[0]});function literals_in_boolean_context(self,compressor){if(compressor.option("booleans")&&compressor.in_boolean_context()){var best=first_in_statement(compressor)?best_of_statement:best_of;return best(self,make_node(AST_Seq,self,{car:self,cdr:make_node(AST_True,self)}).optimize(compressor))}return self}OPT(AST_Array,literals_in_boolean_context);OPT(AST_Object,literals_in_boolean_context);OPT(AST_RegExp,literals_in_boolean_context);OPT(AST_Return,function(self,compressor){if(self.value instanceof AST_Undefined){self.value=null}return self});OPT(AST_VarDef,function(self,compressor){var defines=compressor.option("global_defs");if(defines&&HOP(defines,self.name.name)){compressor.warn("global_defs "+self.name.name+" redefined [{file}:{line},{col}]",self.start)}return self})})();/***********************************************************************
A JavaScript tokenizer / parser / beautifier / compressor.
https://github.com/mishoo/UglifyJS2
-------------------------------- (C) ---------------------------------
@@ -422,6 +420,6 @@
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
***********************************************************************/
-"use strict";function find_builtins(){var new_globals=["Symbol","Map","Promise","Proxy","Reflect","Set","WeakMap","WeakSet"];var objects={};new_globals.forEach(function(new_global){objects[new_global]=global[new_global]||new Function});var a=[];[Object,Array,Function,Number,String,Boolean,Error,Math,Date,RegExp,objects.Symbol,ArrayBuffer,DataView,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,eval,EvalError,Float32Array,Float64Array,Int8Array,Int16Array,Int32Array,isFinite,isNaN,JSON,objects.Map,parseFloat,parseInt,objects.Promise,objects.Proxy,RangeError,ReferenceError,objects.Reflect,objects.Set,SyntaxError,TypeError,Uint8Array,Uint8ClampedArray,Uint16Array,Uint32Array,URIError,objects.WeakMap,objects.WeakSet].forEach(function(ctor){Object.getOwnPropertyNames(ctor).map(add);if(ctor.prototype){Object.getOwnPropertyNames(ctor.prototype).map(add)}});function add(name){push_uniq(a,name)}return a}function mangle_properties(ast,options){options=defaults(options,{reserved:null,cache:null,only_cache:false,regex:null,ignore_quoted:false,debug:false});var reserved=options.reserved;if(reserved==null)reserved=find_builtins();var cache=options.cache;if(cache==null){cache={cname:-1,props:new Dictionary}}var regex=options.regex;var ignore_quoted=options.ignore_quoted;var debug=options.debug!==false;var debug_name_suffix;if(debug){debug_name_suffix=options.debug===true?"":options.debug}var names_to_mangle=[];var unmangleable=[];var ignored={};ast.walk(new TreeWalker(function(node){if(node instanceof AST_ObjectKeyVal){add(node.key,ignore_quoted&&node.quote)}else if(node instanceof AST_ObjectProperty){add(node.key.name)}else if(node instanceof AST_Dot){add(node.property)}else if(node instanceof AST_Sub){addStrings(node.property,ignore_quoted)}else if(node instanceof AST_ConciseMethod){add(node.name.name)}}));return ast.transform(new TreeTransformer(function(node){if(node instanceof AST_ObjectKeyVal){if(!(ignore_quoted&&node.quote))node.key=mangle(node.key)}else if(node instanceof AST_ObjectProperty){node.key.name=mangle(node.key.name)}else if(node instanceof AST_Dot){node.property=mangle(node.property)}else if(node instanceof AST_Sub){if(!ignore_quoted)node.property=mangleStrings(node.property)}else if(node instanceof AST_ConciseMethod){if(should_mangle(node.name.name)){node.name.name=mangle(node.name.name)}}}));function can_mangle(name){if(!is_identifier(name))return false;if(unmangleable.indexOf(name)>=0)return false;if(reserved.indexOf(name)>=0)return false;if(options.only_cache){return cache.props.has(name)}if(/^[0-9.]+$/.test(name))return false;return true}function should_mangle(name){if(ignore_quoted&&name in ignored)return false;if(regex&&!regex.test(name))return false;if(reserved.indexOf(name)>=0)return false;return cache.props.has(name)||names_to_mangle.indexOf(name)>=0}function add(name,ignore){if(ignore){ignored[name]=true;return}if(can_mangle(name))push_uniq(names_to_mangle,name);if(!should_mangle(name)){push_uniq(unmangleable,name)}}function mangle(name){if(!should_mangle(name)){return name}var mangled=cache.props.get(name);if(!mangled){if(debug){var debug_mangled="_$"+name+"$"+debug_name_suffix+"_";if(can_mangle(debug_mangled)&&!(ignore_quoted&&debug_mangled in ignored)){mangled=debug_mangled}}if(!mangled){do{mangled=base54(++cache.cname)}while(!can_mangle(mangled)||ignore_quoted&&mangled in ignored)}cache.props.set(name,mangled)}return mangled}function addStrings(node,ignore){var out={};try{(function walk(node){node.walk(new TreeWalker(function(node){if(node instanceof AST_Seq){walk(node.cdr);return true}if(node instanceof AST_String){add(node.value,ignore);return true}if(node instanceof AST_Conditional){walk(node.consequent);walk(node.alternative);return true}throw out}))})(node)}catch(ex){if(ex!==out)throw ex}}function mangleStrings(node){return node.transform(new TreeTransformer(function(node){if(node instanceof AST_Seq){node.cdr=mangleStrings(node.cdr)}else if(node instanceof AST_String){node.value=mangle(node.value)}else if(node instanceof AST_Conditional){node.consequent=mangleStrings(node.consequent);node.alternative=mangleStrings(node.alternative)}return node}))}}exports["Compressor"]=Compressor;exports["DefaultsError"]=DefaultsError;exports["Dictionary"]=Dictionary;exports["JS_Parse_Error"]=JS_Parse_Error;exports["MAP"]=MAP;exports["OutputStream"]=OutputStream;exports["SourceMap"]=SourceMap;exports["TreeTransformer"]=TreeTransformer;exports["TreeWalker"]=TreeWalker;exports["base54"]=base54;exports["defaults"]=defaults;exports["mangle_properties"]=mangle_properties;exports["merge"]=merge;exports["parse"]=parse;exports["push_uniq"]=push_uniq;exports["string_template"]=string_template;exports["tokenizer"]=tokenizer;exports["is_identifier"]=is_identifier;exports["SymbolDef"]=SymbolDef;if(typeof DEBUG!=="undefined"&&DEBUG){exports["EXPECT_DIRECTIVE"]=EXPECT_DIRECTIVE}global["UglifyJS"]=exports})({},function(){return this}());
+"use strict";function find_builtins(){var a=[];[Object,Array,Function,Number,String,Boolean,Error,Math,Date,RegExp].forEach(function(ctor){Object.getOwnPropertyNames(ctor).map(add);if(ctor.prototype){Object.getOwnPropertyNames(ctor.prototype).map(add)}});function add(name){push_uniq(a,name)}return a}function mangle_properties(ast,options){options=defaults(options,{reserved:null,cache:null,only_cache:false,regex:null,ignore_quoted:false,debug:false});var reserved=options.reserved;if(reserved==null)reserved=find_builtins();var cache=options.cache;if(cache==null){cache={cname:-1,props:new Dictionary}}var regex=options.regex;var ignore_quoted=options.ignore_quoted;var debug=options.debug!==false;var debug_name_suffix;if(debug){debug_name_suffix=options.debug===true?"":options.debug}var names_to_mangle=[];var unmangleable=[];var ignored={};ast.walk(new TreeWalker(function(node){if(node instanceof AST_ObjectKeyVal){add(node.key,ignore_quoted&&node.quote)}else if(node instanceof AST_ObjectProperty){add(node.key.name)}else if(node instanceof AST_Dot){add(node.property)}else if(node instanceof AST_Sub){addStrings(node.property,ignore_quoted)}}));return ast.transform(new TreeTransformer(function(node){if(node instanceof AST_ObjectKeyVal){if(!(ignore_quoted&&node.quote))node.key=mangle(node.key)}else if(node instanceof AST_ObjectProperty){node.key.name=mangle(node.key.name)}else if(node instanceof AST_Dot){node.property=mangle(node.property)}else if(node instanceof AST_Sub){if(!ignore_quoted)node.property=mangleStrings(node.property)}}));function can_mangle(name){if(!is_identifier(name))return false;if(unmangleable.indexOf(name)>=0)return false;if(reserved.indexOf(name)>=0)return false;if(options.only_cache){return cache.props.has(name)}if(/^[0-9.]+$/.test(name))return false;return true}function should_mangle(name){if(ignore_quoted&&name in ignored)return false;if(regex&&!regex.test(name))return false;if(reserved.indexOf(name)>=0)return false;return cache.props.has(name)||names_to_mangle.indexOf(name)>=0}function add(name,ignore){if(ignore){ignored[name]=true;return}if(can_mangle(name))push_uniq(names_to_mangle,name);if(!should_mangle(name)){push_uniq(unmangleable,name)}}function mangle(name){if(!should_mangle(name)){return name}var mangled=cache.props.get(name);if(!mangled){if(debug){var debug_mangled="_$"+name+"$"+debug_name_suffix+"_";if(can_mangle(debug_mangled)&&!(ignore_quoted&&debug_mangled in ignored)){mangled=debug_mangled}}if(!mangled){do{mangled=base54(++cache.cname)}while(!can_mangle(mangled)||ignore_quoted&&mangled in ignored)}cache.props.set(name,mangled)}return mangled}function addStrings(node,ignore){var out={};try{(function walk(node){node.walk(new TreeWalker(function(node){if(node instanceof AST_Seq){walk(node.cdr);return true}if(node instanceof AST_String){add(node.value,ignore);return true}if(node instanceof AST_Conditional){walk(node.consequent);walk(node.alternative);return true}throw out}))})(node)}catch(ex){if(ex!==out)throw ex}}function mangleStrings(node){return node.transform(new TreeTransformer(function(node){if(node instanceof AST_Seq){node.cdr=mangleStrings(node.cdr)}else if(node instanceof AST_String){node.value=mangle(node.value)}else if(node instanceof AST_Conditional){node.consequent=mangleStrings(node.consequent);node.alternative=mangleStrings(node.alternative)}return node}))}}exports["Compressor"]=Compressor;exports["DefaultsError"]=DefaultsError;exports["Dictionary"]=Dictionary;exports["JS_Parse_Error"]=JS_Parse_Error;exports["MAP"]=MAP;exports["OutputStream"]=OutputStream;exports["SourceMap"]=SourceMap;exports["TreeTransformer"]=TreeTransformer;exports["TreeWalker"]=TreeWalker;exports["base54"]=base54;exports["defaults"]=defaults;exports["mangle_properties"]=mangle_properties;exports["merge"]=merge;exports["parse"]=parse;exports["push_uniq"]=push_uniq;exports["string_template"]=string_template;exports["tokenizer"]=tokenizer;exports["is_identifier"]=is_identifier;exports["SymbolDef"]=SymbolDef;if(typeof DEBUG!=="undefined"&&DEBUG){exports["EXPECT_DIRECTIVE"]=EXPECT_DIRECTIVE}global["UglifyJS"]=exports})({},function(){return this}());