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/*
This file is part of the clazy static checker.
Copyright (C) 2018 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 SOURCE_COMPAT_HELPERS
#define SOURCE_COMPAT_HELPERS
#include <clang/AST/Attr.h>
#include <clang/AST/Expr.h>
#include <clang/AST/Decl.h>
#include <clang/Basic/SourceLocation.h>
#include <clang/Basic/SourceManager.h>
namespace clazy {
template <typename T>
inline clang::SourceLocation getLocStart(const T *t)
{
#if LLVM_VERSION_MAJOR >= 8
return t->getBeginLoc();
#else
return t->getLocStart();
#endif
}
template <typename T>
inline clang::SourceLocation getLocEnd(const T *t)
{
#if LLVM_VERSION_MAJOR >= 8
return t->getEndLoc();
#else
return t->getLocEnd();
#endif
}
inline clang::CharSourceRange getImmediateExpansionRange(clang::SourceLocation macroLoc, const clang::SourceManager &sm)
{
#if LLVM_VERSION_MAJOR >= 7
return sm.getImmediateExpansionRange(macroLoc);
#else
auto pair = sm.getImmediateExpansionRange(macroLoc);
return clang::CharSourceRange(clang::SourceRange(pair.first, pair.second), false);
#endif
}
inline bool hasUnusedResultAttr(clang::FunctionDecl *func)
{
#if LLVM_VERSION_MAJOR >= 8
auto RetType = func->getReturnType();
if (const auto *Ret = RetType->getAsRecordDecl()) {
if (const auto *R = Ret->getAttr<clang::WarnUnusedResultAttr>())
return R != nullptr;
} else if (const auto *ET = RetType->getAs<clang::EnumType>()) {
if (const clang::EnumDecl *ED = ET->getDecl()) {
if (const auto *R = ED->getAttr<clang::WarnUnusedResultAttr>())
return R != nullptr;
}
}
return func->getAttr<clang::WarnUnusedResultAttr>() != nullptr;
#else
return func->hasUnusedResultAttr();
#endif
}
}
#endif
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