Commit 6e3bc2c2 authored by Roberto Raggi's avatar Roberto Raggi

Introduced ASTparent

parent 61afdf6d
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
**
**************************************************************************/
#include "ASTParent.h"
#include "AST.h"
using namespace CPlusPlus;
ASTParent::ASTParent(Control *control, AST *rootNode)
: ASTVisitor(control)
{
accept(rootNode);
}
ASTParent::~ASTParent()
{ }
AST *ASTParent::operator()(AST *ast) const
{ return parent(ast); }
AST *ASTParent::parent(AST *ast) const
{ return _parentMap.value(ast); }
bool ASTParent::preVisit(AST *ast)
{
if (! _parentStack.isEmpty())
_parentMap.insert(ast, _parentStack.top());
_parentStack.push(ast);
return true;
}
QList<AST *> ASTParent::path(AST *ast) const
{
QList<AST *> path;
path_helper(ast, &path);
return path;
}
void ASTParent::path_helper(AST *ast, QList<AST *> *path) const
{
if (! ast)
return;
path_helper(parent(ast), path);
path->append(ast);
}
void ASTParent::postVisit(AST *)
{ _parentStack.pop(); }
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
**
**************************************************************************/
#ifndef ASTPARENT_H
#define ASTPARENT_H
#include <ASTVisitor.h>
#include <QtCore/QHash>
#include <QtCore/QStack>
namespace CPlusPlus {
class CPLUSPLUS_EXPORT ASTParent: protected ASTVisitor
{
public:
ASTParent(Control *control, AST *rootNode);
virtual ~ASTParent();
AST *operator()(AST *ast) const;
AST *parent(AST *ast) const;
QList<AST *> path(AST *ast) const;
protected:
virtual bool preVisit(AST *ast);
virtual void postVisit(AST *ast);
void path_helper(AST *ast, QList<AST *> *path) const;
private:
QHash<AST *, AST *> _parentMap;
QStack<AST *> _parentStack;
};
} // namespace CPlusPlus
#endif // ASTPARENT_H
......@@ -27,6 +27,7 @@ HEADERS += \
$$PWD/ResolveExpression.h \
$$PWD/LookupContext.h \
$$PWD/CppBindings.h \
$$PWD/ASTParent.h \
$$PWD/PreprocessorClient.h \
$$PWD/PreprocessorEnvironment.h \
$$PWD/Macro.h \
......@@ -47,6 +48,7 @@ SOURCES += \
$$PWD/ResolveExpression.cpp \
$$PWD/LookupContext.cpp \
$$PWD/CppBindings.cpp \
$$PWD/ASTParent.cpp \
$$PWD/PreprocessorClient.cpp \
$$PWD/PreprocessorEnvironment.cpp \
$$PWD/FastPreprocessor.cpp \
......
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