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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/.
*/
#ifndef LO_CLANG_SHARED_PLUGINS
#include <cassert>
#include <string>
#include <iostream>
#include <fstream>
#include <set>
#include "config_clang.h"
#include "plugin.hxx"
/**
Check for places where we declare a block directly inside a block
*/
namespace {
class BlockBlock:
public loplugin::FilteringPlugin<BlockBlock>
{
public:
explicit BlockBlock(loplugin::InstantiationData const & data):
FilteringPlugin(data) {}
virtual bool preRun() override
{
StringRef fn(handler.getMainFileName());
if (loplugin::isSamePathname(fn, SRCDIR "/sal/osl/unx/file_misc.cxx"))
return false;
return true;
}
void run() override {
if (preRun()) {
TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
}
}
bool VisitCompoundStmt(CompoundStmt const * );
bool VisitCaseStmt(CaseStmt const * );
};
bool BlockBlock::VisitCompoundStmt(CompoundStmt const * compound)
{
if (ignoreLocation(compound))
return true;
if (compound->size() != 1)
return true;
auto inner = *compound->body_begin();
if (!isa<CompoundStmt>(inner))
return true;
if (compiler.getSourceManager().isMacroBodyExpansion(compound->getBeginLoc()))
return true;
if (compiler.getSourceManager().isMacroBodyExpansion(inner->getBeginLoc()))
return true;
if (containsPreprocessingConditionalInclusion(compound->getSourceRange())) {
return true;
}
report(
DiagnosticsEngine::Warning,
"block directly inside block",
compound->getBeginLoc())
<< compound->getSourceRange();
report(
DiagnosticsEngine::Note,
"inner block here",
inner->getBeginLoc())
<< inner->getSourceRange();
return true;
}
bool BlockBlock::VisitCaseStmt(CaseStmt const * caseStmt)
{
if (ignoreLocation(caseStmt))
return true;
auto compoundStmt = dyn_cast<CompoundStmt>(caseStmt->getSubStmt());
if (!compoundStmt)
return true;
if (compoundStmt->size() != 2)
return true;
auto it = compoundStmt->body_begin();
auto inner1 = *it;
if (!isa<CompoundStmt>(inner1))
return true;
++it;
if (!isa<BreakStmt>(*it))
return true;
report(
DiagnosticsEngine::Warning,
"block directly inside block",
compoundStmt->getBeginLoc())
<< compoundStmt->getSourceRange();
return true;
}
loplugin::Plugin::Registration< BlockBlock > blockblock("blockblock", true);
}
#endif // LO_CLANG_SHARED_PLUGINS
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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