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/*
This file is part of the clazy static checker.
Copyright (C) 2015 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
Author: Sérgio Martins <sergio.martins@kdab.com>
Copyright (C) 2015 Sergio Martins <smartins@kde.org>
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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef CLAZY_LOOP_UTILS_H
#define CLAZY_LOOP_UTILS_H
#include "clazy_stl.h"
#include <clang/AST/StmtCXX.h>
#include <clang/AST/Stmt.h>
#include <llvm/Support/Casting.h>
namespace clang {
class Stmt;
class SourceManager;
class SourceLocation;
class Expr;
class ParentMap;
class VarDecl;
}
namespace clazy {
/**
* Returns the body of a for, range-foor, while or do-while loop
*/
clang::Stmt *bodyFromLoop(clang::Stmt *);
/**
* Recursively goes through stmt's children and returns true if it finds a "break", "continue" or a "return" stmt
* All child statements that are on a source code line <
* If onlyBeforThisLoc is valid, then this function will only return true if the break/return/continue happens before
*/
bool loopCanBeInterrupted(clang::Stmt *loop, const clang::SourceManager &sm,
clang::SourceLocation onlyBeforeThisLoc);
/**
* Returns true if stmt is a for, while or do-while loop
*/
inline bool isLoop(clang::Stmt *stmt)
{
return llvm::isa<clang::DoStmt>(stmt) || llvm::isa<clang::WhileStmt>(stmt) ||
llvm::isa<clang::ForStmt>(stmt) || llvm::isa<clang::CXXForRangeStmt>(stmt);
}
/**
* Returns the container expression for a range-loop or Q_FOREACH
*
* Q_FOREACH (auto f, expression) or for (auto i : expression)
*/
clang::Expr* containerExprForLoop(clang::Stmt *loop);
/**
* Returns the container decl for a range-loop or Q_FOREACH
*
* Q_FOREACH (auto f, container) or for (auto i : container)
*/
clang::VarDecl* containerDeclForLoop(clang::Stmt *loop);
/**
* Returns true of stmt is inside a for, while or do-while loop.
* If yes, returns the loop statement, otherwise nullptr.
*/
clang::Stmt* isInLoop(clang::ParentMap *pmap, clang::Stmt *stmt);
}
#endif
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