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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
commit | ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch) | |
tree | 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /compilerplugins/clang/dodgyswitch.cxx | |
parent | Initial commit. (diff) | |
download | libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip |
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | compilerplugins/clang/dodgyswitch.cxx | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/compilerplugins/clang/dodgyswitch.cxx b/compilerplugins/clang/dodgyswitch.cxx new file mode 100644 index 000000000..43958f136 --- /dev/null +++ b/compilerplugins/clang/dodgyswitch.cxx @@ -0,0 +1,78 @@ +/* -*- 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 loplugin::FilteringPlugin<DodgySwitch> +{ +public: + explicit DodgySwitch(loplugin::InstantiationData const & data): FilteringPlugin(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->getBeginLoc()) + << 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->getBeginLoc()) + << 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: */ |