1 files changed, 61 insertions, 0 deletions
diff --git a/src/checks/manuallevel/qstring-varargs.cpp b/src/checks/manuallevel/qstring-varargs.cpp
new file mode 100644
index 00000000..1ce97201
--- /dev/null
+++ b/src/checks/manuallevel/qstring-varargs.cpp
@@ -0,0 +1,61 @@
+/*
+  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"));
+}