Provisional implementation of stack allocated catch variables.

src/ast.h

 // Copyright 2011 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 44 matching lines @@
 #define STATEMENT_NODE_LIST(V)                  \
   V(Block)                                      \
   V(ExpressionStatement)                        \
   V(EmptyStatement)                             \
   V(IfStatement)                                \
   V(ContinueStatement)                          \
   V(BreakStatement)                             \
   V(ReturnStatement)                            \
   V(EnterWithContextStatement)                  \
   V(ExitContextStatement)                       \
+  V(ExitScopedBlockStatement)                   \
   V(SwitchStatement)                            \
   V(DoWhileStatement)                           \
   V(WhileStatement)                             \
   V(ForStatement)                               \
   V(ForInStatement)                             \
   V(TryCatchStatement)                          \
   V(TryFinallyStatement)                        \
   V(DebuggerStatement)
 
 #define EXPRESSION_NODE_LIST(V)                 \
@@ skipping 277 matching lines @@
     return statements_[0]->StatementAsCountOperation();
   }
 
   virtual bool IsInlineable() const;
 
   void AddStatement(Statement* statement) { statements_.Add(statement); }
 
   ZoneList<Statement*>* statements() { return &statements_; }
   bool is_initializer_block() const { return is_initializer_block_; }
 
+  int SourceBegStatementPos() const { return source_beg_statement_pos_; }
+  void SetSourceBegStatementPos(int statement_pos) {
+    source_beg_statement_pos_ = statement_pos;
+  }
+  int SourceEndStatementPos() const { return source_end_statement_pos_; }
+  void SetSourceEndStatementPos(int statement_pos) {
+    source_end_statement_pos_ = statement_pos;
+  }
+
  private:
   ZoneList<Statement*> statements_;
   bool is_initializer_block_;
+
+  int source_beg_statement_pos_;
+  int source_end_statement_pos_;
 };
 
 
 class Declaration: public AstNode {
  public:
   Declaration(VariableProxy* proxy, Variable::Mode mode, FunctionLiteral* fun)
       : proxy_(proxy),
         mode_(mode),
         fun_(fun) {
     ASSERT(mode == Variable::VAR || mode == Variable::CONST);
@@ skipping 269 matching lines @@
 
 
 class ExitContextStatement: public Statement {
  public:
   virtual bool IsInlineable() const;
 
   DECLARE_NODE_TYPE(ExitContextStatement)
 };
 
 
+class ExitScopedBlockStatement: public Statement {
+ public:
+  explicit ExitScopedBlockStatement(Scope* scope)
+      : scope_(scope) { }
+
+  virtual bool IsInlineable() const;
+
+  DECLARE_NODE_TYPE(ExitScopedBlockStatement)
+
+  Scope* scope() { return scope_; }
+
+ private:
+  Scope* scope_;
+};
+
+
 class CaseClause: public ZoneObject {
  public:
   CaseClause(Isolate* isolate,
              Expression* label,
              ZoneList<Statement*>* statements,
              int pos);
 
   bool is_default() const { return label_ == NULL; }
   Expression* label() const {
     CHECK(!is_default());
@@ skipping 1563 matching lines @@
 
  private:
   Isolate* isolate_;
   bool stack_overflow_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_