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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.
*/
#include "qstring-varargs.h"
#include "Utils.h"
#include "HierarchyUtils.h"
#include "QtUtils.h"
#include "TypeUtils.h"
#include <clang/AST/AST.h>
using namespace clang;
using namespace std;
QStringVarargs::QStringVarargs(const std::string &name, ClazyContext *context)
: CheckBase(name, context, Option_CanIgnoreIncludes)
{
}
void QStringVarargs::VisitStmt(clang::Stmt *stmt)
{
auto binop = dyn_cast<BinaryOperator>(stmt);
if (!binop || binop->getOpcode() != BO_Comma)
return;
auto callexpr = dyn_cast<CallExpr>(binop->getLHS());
if (!callexpr)
return;
FunctionDecl *func = callexpr->getDirectCallee();
if (!func || func->getName() != "__builtin_trap")
return;
QualType qt = binop->getRHS()->getType();
CXXRecordDecl *record = qt->getAsCXXRecordDecl();
if (!record)
return;
StringRef name = clazy::name(record);
if (name == "QString" || name == "QByteArray")
emitWarning(stmt, string("Passing ") + name.data() + string(" to variadic function"));
}
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