/* -*- 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/. */ #if !defined _WIN32 //TODO, #include #include #include #include #include "plugin.hxx" #include "check.hxx" #include "config_clang.h" #include #include #include #include #include #include #include /** This is intended to be run as the second stage of the "constfields" clang plugin. */ namespace { class ConstFieldsRewrite : public RecursiveASTVisitor, public loplugin::RewritePlugin { public: explicit ConstFieldsRewrite(loplugin::InstantiationData const& data); ~ConstFieldsRewrite(); virtual void run() override { if (rewriter) { TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()); } } bool VisitFieldDecl(const FieldDecl* var); private: // I use a brute-force approach - mmap the results file and do a linear search on it // It works surprisingly well, because the file is small enough to fit into L2 cache on modern CPU's size_t mmapFilesize; int mmapFD; char* mmappedData; }; size_t getFilesize(const char* filename) { struct stat st; stat(filename, &st); return st.st_size; } ConstFieldsRewrite::ConstFieldsRewrite(loplugin::InstantiationData const& data) : RewritePlugin(data) { static const char sInputFile[] = SRCDIR "/compilerplugins/clang/constfields.results"; mmapFilesize = getFilesize(sInputFile); //Open file mmapFD = open(sInputFile, O_RDONLY, 0); assert(mmapFD != -1); //Execute mmap mmappedData = static_cast(mmap(NULL, mmapFilesize, PROT_READ, MAP_PRIVATE, mmapFD, 0)); assert(mmappedData != NULL); } ConstFieldsRewrite::~ConstFieldsRewrite() { //Cleanup int rc = munmap(mmappedData, mmapFilesize); assert(rc == 0); (void)rc; close(mmapFD); } bool ConstFieldsRewrite::VisitFieldDecl(const FieldDecl* fieldDecl) { if (ignoreLocation(fieldDecl)) return true; // ignore stuff that forms part of the stable URE interface if (isInUnoIncludeFile(compiler.getSourceManager().getSpellingLoc( fieldDecl->getCanonicalDecl()->getLocation()))) return true; // in case we've already processed this field if (fieldDecl->getType().isConstQualified()) return true; // TODO rewriting T& is a bit trickier if (loplugin::TypeCheck(fieldDecl->getType()).LvalueReference()) return true; const RecordDecl* recordDecl = fieldDecl->getParent(); std::string parentClassName; if (const CXXRecordDecl* cxxRecordDecl = dyn_cast(recordDecl)) { if (cxxRecordDecl->getTemplateInstantiationPattern()) cxxRecordDecl = cxxRecordDecl->getTemplateInstantiationPattern(); parentClassName = cxxRecordDecl->getQualifiedNameAsString(); } else { parentClassName = recordDecl->getQualifiedNameAsString(); } // the extra spaces match the formatting in the results file, and help avoid false+ std::string aNiceName = " " + parentClassName + " " + fieldDecl->getNameAsString() + " " + fieldDecl->getType().getAsString() + "\n"; // search mmap'ed file for field const char* aNiceNameStr = aNiceName.c_str(); char* found = std::search(mmappedData, mmappedData + mmapFilesize, aNiceNameStr, aNiceNameStr + aNiceName.size()); if (!(found < mmappedData + mmapFilesize)) return true; SourceManager& SM = compiler.getSourceManager(); auto endLoc = fieldDecl->getTypeSourceInfo()->getTypeLoc().getEndLoc(); endLoc = endLoc.getLocWithOffset(Lexer::MeasureTokenLength(endLoc, SM, compiler.getLangOpts())); // Calculate how much space is available after the type declaration that we can use to // overwrite with the " const". This reduces the amount of formatting fixups I need to do. char const* p1 = SM.getCharacterData(endLoc); bool success = false; if (*p1 != ' ') { // Sometimes there is no space at all e.g. in // FastTokenHandlerBase *mpTokenHandler; // between the "*" and the "mpTokenHandler", so add an extra space. success = insertText(endLoc, " const "); } else { int spaceAvailable = 1; ++p1; for (; spaceAvailable < 6; ++spaceAvailable) { if (*p1 != ' ') break; ++p1; } if (spaceAvailable < 6) success = replaceText(endLoc, spaceAvailable - 1, " const"); else success = replaceText(endLoc, spaceAvailable, " const"); } if (!success) { report(DiagnosticsEngine::Warning, "Could not mark field as const", fieldDecl->getBeginLoc()) << fieldDecl->getSourceRange(); } return true; } loplugin::Plugin::Registration X("constfieldsrewrite", false); } #endif /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ value='distro/collabora/lov-6.0.5'>distro/collabora/lov-6.0.5 LibreOffice 核心代码仓库文档基金会
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2017-11-24tdf#113787: always require version file with config for CLI assembliesMichael Stahl