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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 FUNCTION_ARGS_BY_REF_H
#define FUNCTION_ARGS_BY_REF_H
#include <string>
#include "checkbase.h"
class ClazyContext;
namespace clang {
class Decl;
class VarDecl;
class FixItHint;
class ParmVarDecl;
class FunctionDecl;
class Stmt;
}
namespace TypeUtils {
struct QualTypeClassification;
}
/**
* Finds functions where big non-trivial types are passed by value instead of const-ref.
* Looks into the body of the functions to see if the argument are read-only, it doesn't emit a warning otherwise.
*/
class FunctionArgsByRef : public CheckBase
{
public:
FunctionArgsByRef(const std::string &name, ClazyContext *context);
void VisitDecl(clang::Decl *decl) override;
void VisitStmt(clang::Stmt *stmt) override;
private:
void processFunction(clang::FunctionDecl *);
clang::FixItHint fixit(const clang::ParmVarDecl *, TypeUtils::QualTypeClassification);
};
#endif
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