qt-creator/src/libs/cplusplus/ASTParent.h

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#ifndef CPLUSPLUS_ASTPARENT_H
#define CPLUSPLUS_ASTPARENT_H

#include <ASTVisitor.h>
#include <QHash>
#include <QStack>

namespace CPlusPlus {

class CPLUSPLUS_EXPORT ASTParent: protected ASTVisitor
{
public:
    ASTParent(TranslationUnit *transaltionUnit, 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 // CPLUSPLUS_ASTPARENT_H