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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <cassert>
#include <string>
#include <iostream>
#include <fstream>
#include <set>
#include "plugin.hxx"
namespace {
class DodgySwitch:
public RecursiveASTVisitor<DodgySwitch>, public loplugin::Plugin
{
public:
explicit DodgySwitch(loplugin::InstantiationData const & data): Plugin(data)
{}
virtual void run() override
{
TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
}
bool VisitDefaultStmt(DefaultStmt const * );
bool VisitCaseStmt(CaseStmt const * );
private:
bool IsParentSwitch(Stmt const * );
};
bool DodgySwitch::VisitDefaultStmt(DefaultStmt const * defaultStmt)
{
if (ignoreLocation(defaultStmt))
return true;
if (!IsParentSwitch(defaultStmt))
report(
DiagnosticsEngine::Warning, "default statement not directly under switch",
defaultStmt->getLocStart())
<< defaultStmt->getSourceRange();
return true;
}
bool DodgySwitch::VisitCaseStmt(CaseStmt const * caseStmt)
{
if (ignoreLocation(caseStmt))
return true;
if (!IsParentSwitch(caseStmt))
{
//parentStmt(parentStmt(caseStmt))->dump();
report(
DiagnosticsEngine::Warning, "case statement not directly under switch",
caseStmt->getLocStart())
<< caseStmt->getSourceRange();
}
return true;
}
bool DodgySwitch::IsParentSwitch(Stmt const * stmt)
{
auto parent = getParentStmt(stmt);
if (isa<CaseStmt>(parent) || isa<DefaultStmt>(parent)) // daisy chain
return true;
auto compoundStmt = dyn_cast<CompoundStmt>(parent);
if (!compoundStmt)
return false;
return isa<SwitchStmt>(getParentStmt(compoundStmt));
}
loplugin::Plugin::Registration< DodgySwitch > X("dodgyswitch", false);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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