lib/nydp/context_symbol.rb in nydp-0.5.1 vs lib/nydp/context_symbol.rb in nydp-0.6.0

@@ -22,47 +22,49 @@
                     "at_#{binding_index}= value"
                   else
                     "set_index(#{binding_index}, value)"
                   end
 
+      line = __LINE__ + 2
       code = <<-KLASS
         def initialize name, lexical_depth
           @name, @lexical_depth = name, lexical_depth
         end
 
         def lexical_reach n
           @lexical_depth + n
         end
 
+        def compile_to_ruby indent, srcs, opts=nil
+          "\#{indent}_arg_\#{@name.to_s._nydp_name_to_rb_name}"
+        end
+
         def value ctx
-          ctx#{getctx}.#{at_index} || Nydp::NIL
+          ctx#{getctx}.#{at_index} || nil
         rescue
-          raise "failed looking up \#{@name.inspect} (\#{@name.class.name})"
+          raise "failed looking up \#{@name._nydp_inspect} (\#{@name.class.name}) : lookup expression was ctx#{getctx}.#{at_index}"
         end
 
         def assign value, ctx
           ctx#{getctx}.#{set_index}
         rescue StandardError => e
           raise "problem in \#{self.class.name}#assign, name is \#{@name}, depth is \#{depth}, index is #{binding_index}"
         end
 
-        def execute vm
-          vm.push_arg value vm.current_context
-        end
-
         def depth   ; #{depth}                               ; end
         def inspect ; to_s                                   ; end
-        def to_s    ; "[#{depth}##{binding_index}#\#{@lexical_depth}]\#{@name}" ; end
+        # def to_s    ; "[#{depth}##{binding_index}#\#{@lexical_depth}]\#{@name}" ; end
+        def to_s    ; @name ; end
       KLASS
 
       const_set name, Class.new(Nydp::ContextSymbol) {
-        eval code, binding, name.to_s, 0
+        eval code, binding, "#{name.to_s} : #{__FILE__}", line
       }
     end
 
     def self.build effective_depth, name, binding_index, lexical_depth
       const_get(:"ContextSymbol_#{effective_depth}_#{binding_index}").new(name, lexical_depth)
     rescue
-      raise "building ContextSymbol #{[effective_depth, name, binding_index, lexical_depth].inspect}"
+      raise "building ContextSymbol #{[effective_depth, name, binding_index, lexical_depth]._nydp_inspect}"
     end
   end
 end