/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * Based on LLVM/Clang. * * This file is distributed under the University of Illinois Open Source * License. See LICENSE.TXT for details. * */ /* This is a compile check. Warns about 'auto' declarations becoming rtl::OUStringConcat, such as auto str = "string" + OUString::number( 10 ); The type of the expression is rtl::OUStringConcat and those refer to temporaries and so their lifecycle should not extend the lifecycle of those temporaries. */ #ifndef LO_CLANG_SHARED_PLUGINS #include "config_clang.h" #include "plugin.hxx" #include "check.hxx" namespace loplugin { class StringConcatAuto : public FilteringPlugin< StringConcatAuto > { public: StringConcatAuto( const InstantiationData& data ); virtual void run() override; bool shouldVisitTemplateInstantiations () const { return true; } bool VisitVarDecl( const VarDecl* decl ); bool VisitFunctionDecl( const FunctionDecl* decl ); private: enum class Check { Var, Return }; bool checkDecl( const DeclaratorDecl* decl, const QualType type, const SourceRange& range, Check check ); }; StringConcatAuto::StringConcatAuto( const InstantiationData& data ) : FilteringPlugin( data ) { } void StringConcatAuto::run() { TraverseDecl( compiler.getASTContext().getTranslationUnitDecl()); } bool StringConcatAuto::VisitVarDecl( const VarDecl* decl ) { return checkDecl( decl, decl->getType(), decl->getTypeSourceInfo() ? decl->getTypeSourceInfo()->getTypeLoc().getSourceRange() : decl->getSourceRange(), Check::Var ); } bool StringConcatAuto::VisitFunctionDecl( const FunctionDecl* decl ) { return checkDecl( decl, decl->getReturnType(), decl->getReturnTypeSourceRange(), Check::Return ); } bool StringConcatAuto::checkDecl( const DeclaratorDecl* decl, QualType type, const SourceRange& range, Check check ) { if( ignoreLocation( decl )) return true; if( isa< ParmVarDecl >( decl )) // parameters should be fine, temporaries should exist during the call return true; std::string fileName = getFilenameOfLocation( compiler.getSourceManager().getSpellingLoc(decl->getBeginLoc())).str(); loplugin::normalizeDotDotInFilePath(fileName); if (loplugin::isSamePathname(fileName, SRCDIR "/include/rtl/string.hxx") || loplugin::isSamePathname(fileName, SRCDIR "/include/rtl/ustring.hxx") || loplugin::isSamePathname(fileName, SRCDIR "/include/rtl/strbuf.hxx") || loplugin::isSamePathname(fileName, SRCDIR "/include/rtl/ustrbuf.hxx") || loplugin::isSamePathname(fileName, SRCDIR "/include/rtl/stringconcat.hxx")) return true; auto const tc = loplugin::TypeCheck( type.getNonReferenceType().getCanonicalType()); const char* typeString = nullptr; if( tc.Struct("StringConcat").Namespace("rtl").GlobalNamespace()) typeString = "O(U)String"; else return true; report( DiagnosticsEngine::Warning, check == Check::Var ? "creating a variable of type %0 will make it reference temporaries" : "returning a variable of type %0 will make it reference temporaries", decl->getLocation()) << type; report( DiagnosticsEngine::Note, "use %0 instead", range.getBegin()) << typeString << FixItHint::CreateReplacement( range, typeString ); return true; } static Plugin::Registration< StringConcatAuto > stringconcatauto( "stringconcatauto" ); } // namespace #endif // LO_CLANG_SHARED_PLUGINS /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ ora/cp-5.0'>distro/collabora/cp-5.0 LibreOffice 核心代码仓库文档基金会

path: root/stoc/Library_javaloader.mk

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