Implement rudimentary module linking.

src/ast.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 402 matching lines @@
 
 class Block: public BreakableStatement {
  public:
   DECLARE_NODE_TYPE(Block)
 
   void AddStatement(Statement* statement) { statements_.Add(statement); }
 
   ZoneList<Statement*>* statements() { return &statements_; }
   bool is_initializer_block() const { return is_initializer_block_; }
 
-  Scope* block_scope() const { return block_scope_; }
-  void set_block_scope(Scope* block_scope) { block_scope_ = block_scope; }
+  Scope* scope() const { return scope_; }
+  void set_scope(Scope* scope) { scope_ = scope; }
 
  protected:
   template<class> friend class AstNodeFactory;
 
   Block(Isolate* isolate,
         ZoneStringList* labels,
         int capacity,
         bool is_initializer_block)
       : BreakableStatement(isolate, labels, TARGET_FOR_NAMED_ONLY),
         statements_(capacity),
         is_initializer_block_(is_initializer_block),
-        block_scope_(NULL) {
+        scope_(NULL) {
   }
 
  private:
   ZoneList<Statement*> statements_;
   bool is_initializer_block_;
-  Scope* block_scope_;
+  Scope* scope_;
 };
 
 
 class Declaration: public AstNode {
  public:
   VariableProxy* proxy() const { return proxy_; }
   VariableMode mode() const { return mode_; }
   Scope* scope() const { return scope_; }
   virtual InitializationFlag initialization() const = 0;
   virtual bool IsInlineable() const;
@@ skipping 147 matching lines @@
  private:
   Interface* interface_;
 };
 
 
 class ModuleLiteral: public Module {
  public:
   DECLARE_NODE_TYPE(ModuleLiteral)
 
   Block* body() const { return body_; }
+  Handle<Context> context() const { return context_; }
 
  protected:
   template<class> friend class AstNodeFactory;
 
   ModuleLiteral(Block* body, Interface* interface)
       : Module(interface),
         body_(body) {
   }
 
  private:
   Block* body_;
+  Handle<Context> context_;
 };
 
 
 class ModuleVariable: public Module {
  public:
   DECLARE_NODE_TYPE(ModuleVariable)
 
   VariableProxy* proxy() const { return proxy_; }
 
  protected:
@@ skipping 2335 matching lines @@
  private:
   Isolate* isolate_;
   Zone* zone_;
   Visitor visitor_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_