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Diffstat (limited to '')
-rw-r--r-- | compilerplugins/clang/unoany.cxx | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/compilerplugins/clang/unoany.cxx b/compilerplugins/clang/unoany.cxx new file mode 100644 index 0000000000..0ab5657c1d --- /dev/null +++ b/compilerplugins/clang/unoany.cxx @@ -0,0 +1,92 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * 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 "config_clang.h" + +#include "check.hxx" +#include "plugin.hxx" + +namespace { + +class UnoAny: + public loplugin::FilteringPlugin<UnoAny> +{ +public: + explicit UnoAny(loplugin::InstantiationData const & data): FilteringPlugin(data) {} + + bool preRun() override { + return compiler.getLangOpts().CPlusPlus; + } + + void run() override { + if (preRun()) { + TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()); + } + } + + bool VisitCXXOperatorCallExpr(CXXOperatorCallExpr const * expr); +}; + +bool UnoAny::VisitCXXOperatorCallExpr(CXXOperatorCallExpr const * expr) +{ + if (ignoreLocation(expr)) { + return true; + } + StringRef aFileName = getFilenameOfLocation( + compiler.getSourceManager().getSpellingLoc(expr->getBeginLoc())); + if (loplugin::isSamePathname(aFileName, SRCDIR "/include/com/sun/star/uno/Any.hxx")) { + return true; + } + if (expr->getOperator() != OO_Equal) { + return true; + } + if (!loplugin::TypeCheck(expr->getArg(0)->getType()).Class("Any"). + Namespace("uno").Namespace("star").Namespace("sun").Namespace("com").GlobalNamespace()) + { + return true; + } + if (auto expr2 = dyn_cast<MaterializeTemporaryExpr>(expr->getArg(1))) { + if (auto expr3 = dyn_cast<CXXBindTemporaryExpr>(expr2->getSubExpr())) { + if (auto expr4 = dyn_cast<CallExpr>(expr3->getSubExpr())) { + if (loplugin::DeclCheck(expr4->getDirectCallee()).Function("makeAny"). + Namespace("uno").Namespace("star").Namespace("sun").Namespace("com").GlobalNamespace()) { + report( + DiagnosticsEngine::Warning, + ("unnecessary copy, rather use <<= operator directly with the 'makeAny'" + " argument"), + expr->getOperatorLoc()) + << expr->getSourceRange(); + return true; + } + } + } + if (isa<CXXFunctionalCastExpr>(expr2->getSubExpr())) { + //expr->getArg(1)->dump(); + report( + DiagnosticsEngine::Warning, + ("unnecessary copy, rather use <<= operator directly with the 'Any' constructor" + " argument"), + expr->getOperatorLoc()) + << expr->getSourceRange(); + return true; + } + } + //expr->getArg(1)->dump(); + return true; +} + +loplugin::Plugin::Registration<UnoAny> unoany("unoany"); + +} // namespace + +#endif // LO_CLANG_SHARED_PLUGINS + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |