1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // This clang plugin checks various invariants of the Blink garbage 6 // collection infrastructure. 7 // 8 // Errors are described at: 9 // http://www.chromium.org/developers/blink-gc-plugin-errors 10 11 #include "BlinkGCPluginConsumer.h" 12 #include "BlinkGCPluginOptions.h" 13 #include "Config.h" 14 15 #include "clang/Frontend/CompilerInstance.h" 16 #include "clang/Frontend/FrontendPluginRegistry.h" 17 18 using namespace clang; 19 20 class BlinkGCPluginAction : public PluginASTAction { 21 public: BlinkGCPluginAction()22 BlinkGCPluginAction() {} 23 24 protected: 25 // Overridden from PluginASTAction: CreateASTConsumer(CompilerInstance & instance,llvm::StringRef ref)26 virtual std::unique_ptr<ASTConsumer> CreateASTConsumer( 27 CompilerInstance& instance, 28 llvm::StringRef ref) { 29 return llvm::make_unique<BlinkGCPluginConsumer>(instance, options_); 30 } 31 ParseArgs(const CompilerInstance &,const std::vector<std::string> & args)32 virtual bool ParseArgs(const CompilerInstance&, 33 const std::vector<std::string>& args) { 34 for (const auto& arg : args) { 35 if (arg == "dump-graph") { 36 options_.dump_graph = true; 37 } else if (arg == "warn-unneeded-finalizer") { 38 options_.warn_unneeded_finalizer = true; 39 } else { 40 llvm::errs() << "Unknown blink-gc-plugin argument: " << arg << "\n"; 41 return false; 42 } 43 } 44 return true; 45 } 46 47 private: 48 BlinkGCPluginOptions options_; 49 }; 50 51 static FrontendPluginRegistry::Add<BlinkGCPluginAction> X( 52 "blink-gc-plugin", 53 "Check Blink GC invariants"); 54