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//===-- ReplaceAutoPtrActions.h ----- std::auto_ptr replacement -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief This file contains the declaration of the ASTMatcher callback for the
/// ReplaceAutoPtr transform.
///
//===----------------------------------------------------------------------===//
#ifndef CPP11_MIGRATE_REPLACE_AUTO_PTR_ACTIONS_H
#define CPP11_MIGRATE_REPLACE_AUTO_PTR_ACTIONS_H
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/Tooling/Refactoring.h"
class Transform;
/// \brief The callback to be used when replacing the \c std::auto_ptr types and
/// using declarations.
class AutoPtrReplacer : public clang::ast_matchers::MatchFinder::MatchCallback {
public:
AutoPtrReplacer(unsigned &AcceptedChanges, Transform &Owner)
: AcceptedChanges(AcceptedChanges), Owner(Owner) {}
/// \brief Entry point to the callback called when matches are made.
virtual void run(const clang::ast_matchers::MatchFinder::MatchResult &Result)
LLVM_OVERRIDE;
private:
/// \brief Locates the \c auto_ptr token when it is referred by a \c TypeLoc.
///
/// \code
/// std::auto_ptr<int> i;
/// ^~~~~~~~~~~~~
/// \endcode
/// The caret represents the location returned and the tildes cover the
/// parameter \p AutoPtrTypeLoc.
///
/// \return An invalid \c SourceLocation if not found, otherwise the location
/// of the beginning of the \c auto_ptr token.
clang::SourceLocation locateFromTypeLoc(clang::TypeLoc AutoPtrTypeLoc,
const clang::SourceManager &SM);
/// \brief Locates the \c auto_ptr token in using declarations.
///
/// \code
/// using std::auto_ptr;
/// ^
/// \endcode
/// The caret represents the location returned.
///
/// \return An invalid \c SourceLocation if not found, otherwise the
/// location of the beginning of the \c auto_ptr token.
clang::SourceLocation
locateFromUsingDecl(const clang::UsingDecl *UsingAutoPtrDecl,
const clang::SourceManager &SM);
private:
unsigned &AcceptedChanges;
Transform &Owner;
};
/// \brief The callback to be used to fix the ownership transfers of
/// \c auto_ptr,
///
/// \c unique_ptr requires to use \c std::move() explicitly in order to transfer
/// the ownership.
///
/// Given:
/// \code
/// std::auto_ptr<int> a, b;
/// a = b;
/// \endcode
/// The last statement is transformed to:
/// \code
/// a = std::move(b);
/// \endcode
class OwnershipTransferFixer
: public clang::ast_matchers::MatchFinder::MatchCallback {
public:
OwnershipTransferFixer(unsigned &AcceptedChanges, Transform &Owner)
: AcceptedChanges(AcceptedChanges), Owner(Owner) {}
/// \brief Entry point to the callback called when matches are made.
virtual void run(const clang::ast_matchers::MatchFinder::MatchResult &Result)
LLVM_OVERRIDE;
private:
unsigned &AcceptedChanges;
Transform &Owner;
};
#endif // CPP11_MIGRATE_REPLACE_AUTO_PTR_ACTIONS_H
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