lib/minjs/ecma262/lit.rb in minjs-0.1.3 vs lib/minjs/ecma262/lit.rb in minjs-0.1.5

@@ -12,11 +12,11 @@
 
       def to_exp?
         false
       end
 
-      def priority(exp)
+      def priority
         10
       end
     end
 
     class DivOrRegexpLiteral < Literal
@@ -76,10 +76,14 @@
     class Null < Literal
       def initialize(val)
         @val = :null
       end
 
+      def deep_dup
+        self #not dup
+      end
+
       def traverse(parent, &block)
         yield self, parent
       end
 
       def to_s
@@ -105,10 +109,14 @@
         else
           @val = :"false"
         end
       end
 
+      def deep_dup
+        self #//not dup
+      end
+
       def traverse(parent, &block)
         yield self, parent
       end
 
       def to_js(options = {})
@@ -134,10 +142,15 @@
       attr_reader :val
 
       def initialize(val)
         @val = val
       end
+
+      def deep_dup
+        self.class.new(@val)
+      end
+
       def traverse(parent)
         yield self, parent
       end
       def to_js(options = {})
         t = "\""
@@ -195,10 +208,14 @@
           end
         end
         @decimal = nil if @decimal == 0
       end
 
+      def deep_dup
+        self.class.new(@integer, @decimal, @exp)
+      end
+
       def traverse(parent, &block)
         yield self, parent
       end
 
       def to_js(options = {})
@@ -297,10 +314,14 @@
       def initialize(body, flags)
         @body = body
         @flags = flags
       end
 
+      def deep_dup
+        self.class.new(@body, @flags)
+      end
+
       def traverse(parent)
         yield self, parent
       end
 
       def to_js(options = {})
@@ -311,12 +332,17 @@
     LITERAL_TRUE = Boolean.new(:true)
     LITERAL_FALSE = Boolean.new(:false)
 
     class ECMA262Array < Literal
       def initialize(val)
-        @val = val
+        @val = val # val is Array
       end
+
+      def deep_dup
+        self.class.new(@val.collect{|x| x ? x.deep_dup : nil})
+      end
+
       def traverse(parent, &block)
         yield self, parent
         @val.each do |k|
           k.traverse(parent, &block)
         end
@@ -342,10 +368,15 @@
 
       public
       def initialize(val)
         @val = val
       end
+
+      def deep_dup
+        self.class.new(@val.collect{|x, y| [x.deep_dup, y ? y.deep_dup : y]})
+      end
+
       def traverse(parent, &block)
         yield self, parent
         @val.each do |k, v|
           k.traverse(parent, &block)
           v.traverse(parent, &block)
@@ -422,15 +453,16 @@
       end
     end
 
     class IdentifierName < Literal
       attr_accessor :context
-      attr_accessor :val
+      attr_reader :val
 
       @@sym = {}
 
       def initialize(context, val)
+        @context = context
         @val = val.to_sym
       end
 
       def self.get(context, val)
         @@sym[val] ||= self.new(context, val)
@@ -454,9 +486,13 @@
         RESERVED_WORD.index(val)
       end
 
       def traverse(parent)
         yield self, parent
+      end
+
+      def deep_dup
+        self.class.new(@context, @val)
       end
 
       def to_js(options = {})
         val.to_s
       end