callable as base for yield and send

more yield tests

lib/ruby/yield_statement.rb

@@ -1,39 +1,13 @@
 module Ruby
 
-  class YieldStatement < Statement
-    attr_reader :arguments
+  class YieldStatement < Callable
 
-    def initialize(arguments   )
-      @arguments = arguments
-      @arguments ||= []
-    end
-
-    def to_vool
-      statements = Statements.new([])
-      arguments = []
-      @arguments.each_with_index do |arg , index |
-        normalize_arg(arg , arguments , statements)
-      end
-      if statements.empty?
-        return YieldStatement.new(@name, @receiver , @arguments)
-      else
-        statements << YieldStatement.new(@name, @receiver , arguments)
-        return statements
-      end
-    end
-
-    def to_vool_arg(arg , arguments , statements)
-      if arg.respond_to?(:slot_definition) and !arg.is_a?(YieldStatement)
-        arguments << arg
-        return
-      end
-      assign = LocalAssignment.new( "tmp_#{arg.object_id}".to_sym, arg.to_vool)
-      statements << assign
-      arguments << LocalVariable.new(assign.name)
+    def initialize(arguments)
+      super("yield_#{object_id}".to_sym , SelfExpression.new , arguments)
     end
 
     def to_s
-      "#{receiver}.#{name}(#{arguments.join(', ')})"
+      "yield(#{arguments.join(', ')})"
     end
   end
 end