scope_chain.h from Gtk+ WebCore at Krugle

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/*
 *  This file is part of the KDE libraries
 *  Copyright (C) 2003 Apple Computer, Inc.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 *  Boston, MA 02111-1307, USA.
 *
 */

#ifndef KJS_SCOPE_CHAIN_H
#define KJS_SCOPE_CHAIN_H

#include "fast_malloc.h"

namespace KJS {

    class ObjectImp;
    class ExecState;
    
    class ScopeChainNode {
    public:
        ScopeChainNode(ScopeChainNode *n, ObjectImp *o)
            : next(n), object(o), refCount(1) { }

        KJS_FAST_ALLOCATED;

        ScopeChainNode *next;
        ObjectImp *object;
        int refCount;
    };

    class ScopeChain {
    public:
        ScopeChain() : _node(0) { }
        ~ScopeChain() { deref(); }

        ScopeChain(const ScopeChain &c) : _node(c._node)
            { if (_node) ++_node->refCount; }
        ScopeChain &operator=(const ScopeChain &);

        bool isEmpty() const { return !_node; }
        ObjectImp *top() const { return _node->object; }

	ObjectImp *bottom() const;

        void clear() { deref(); _node = 0; }
        void push(ObjectImp *);
        void push(const ScopeChain &);
        void pop();
        
        void mark();
        
    private:
        ScopeChainNode *_node;
        
        void deref() { if (_node && --_node->refCount == 0) release(); }
        void ref() const;
        
        void release();
    };

}; // namespace KJS

#endif // KJS_SCOPE_CHAIN_H

See more files for this project here

Gtk+ WebCore

Gtk+ WebCore is a Linux/Gtk+ port of Apple Computer Inc.\'s WebCore KHTML html rendering engine including a web component. A reference browser implementation is included in the project.

Project homepage: http://sourceforge.net/projects/gtk-webcore
Programming language(s): C,C++,JavaScript
License: other

  Makefile.am
  array_instance.h
  array_object.cpp
  array_object.h
  array_object.lut.h
  bool_object.cpp
  bool_object.h
  collector.cpp
  collector.h
  completion.h
  context.h
  create_hash_table
  cxx.cpp
  cxx.h
  date_object.cpp
  date_object.h
  date_object.lut.h
  debugger.cpp
  debugger.h
  dtoa.cpp
  dtoa.h
  error_object.cpp
  error_object.h
  fast_malloc.cpp
  fast_malloc.h
  fpconst.cpp
  function.cpp
  function.h
  function_object.cpp
  function_object.h
  grammar.cpp
  grammar.h
  grammar.y
  identifier.cpp
  identifier.h
  internal.cpp
  internal.h
  interpreter.cpp
  interpreter.h
  interpreter_map.cpp
  interpreter_map.h
  keywords.table
  kjs-test
  kjs-test.chk
  lexer.cpp
  lexer.h
  lexer.lut.h
  list.cpp
  list.h
  lookup.cpp
  lookup.h
  math_object.cpp
  math_object.h
  math_object.lut.h
  new
  nodes.cpp
  nodes.h
  nodes2string.cpp
  number_object.cpp
  number_object.h
  number_object.lut.h
  object.cpp
  object.h
  object_object.cpp
  object_object.h
  operations.cpp
  operations.h
  property_map.cpp
  property_map.h
  protect.h
  protected_values.cpp
  protected_values.h
  reference.cpp
  reference.h
  reference_list.cpp
  reference_list.h
  regexp.cpp
  regexp.h
  regexp_object.cpp
  regexp_object.h
  scope_chain.cpp
  scope_chain.h
  shared_ptr.h
  simple_number.h
  string_object.cpp
  string_object.h
  string_object.lut.h
  test.js
  testkjs.cpp
  types.h
  ustring.cpp
  ustring.h
  value.cpp
  value.h