c2f18315ff
AbstractBasicReader.h has quite a few dependencies already, and that's only likely to increase. Meanwhile, ASTRecordReader is really an implementation detail of the ASTReader that is only used in a small number of places. I've kept it in a public header for the use of projects like Swift that might want to plug in to Clang's serialization framework. I've also moved OMPClauseReader into an implementation file, although it can't be made private because of friendship.
115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
//===-- ModelInjector.cpp ---------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "ModelInjector.h"
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#include "clang/AST/Decl.h"
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#include "clang/Basic/IdentifierTable.h"
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#include "clang/Basic/LangStandard.h"
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#include "clang/Basic/Stack.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/Frontend/ASTUnit.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/FrontendAction.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Serialization/ASTReader.h"
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#include "clang/StaticAnalyzer/Frontend/FrontendActions.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Support/CrashRecoveryContext.h"
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#include "llvm/Support/FileSystem.h"
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#include <utility>
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using namespace clang;
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using namespace ento;
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ModelInjector::ModelInjector(CompilerInstance &CI) : CI(CI) {}
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Stmt *ModelInjector::getBody(const FunctionDecl *D) {
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onBodySynthesis(D);
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return Bodies[D->getName()];
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}
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Stmt *ModelInjector::getBody(const ObjCMethodDecl *D) {
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onBodySynthesis(D);
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return Bodies[D->getName()];
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}
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void ModelInjector::onBodySynthesis(const NamedDecl *D) {
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// FIXME: what about overloads? Declarations can be used as keys but what
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// about file name index? Mangled names may not be suitable for that either.
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if (Bodies.count(D->getName()) != 0)
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return;
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SourceManager &SM = CI.getSourceManager();
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FileID mainFileID = SM.getMainFileID();
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AnalyzerOptionsRef analyzerOpts = CI.getAnalyzerOpts();
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llvm::StringRef modelPath = analyzerOpts->ModelPath;
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llvm::SmallString<128> fileName;
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if (!modelPath.empty())
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fileName =
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llvm::StringRef(modelPath.str() + "/" + D->getName().str() + ".model");
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else
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fileName = llvm::StringRef(D->getName().str() + ".model");
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if (!llvm::sys::fs::exists(fileName.str())) {
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Bodies[D->getName()] = nullptr;
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return;
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}
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auto Invocation = std::make_shared<CompilerInvocation>(CI.getInvocation());
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FrontendOptions &FrontendOpts = Invocation->getFrontendOpts();
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InputKind IK = Language::CXX; // FIXME
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FrontendOpts.Inputs.clear();
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FrontendOpts.Inputs.emplace_back(fileName, IK);
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FrontendOpts.DisableFree = true;
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Invocation->getDiagnosticOpts().VerifyDiagnostics = 0;
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// Modules are parsed by a separate CompilerInstance, so this code mimics that
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// behavior for models
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CompilerInstance Instance(CI.getPCHContainerOperations());
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Instance.setInvocation(std::move(Invocation));
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Instance.createDiagnostics(
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new ForwardingDiagnosticConsumer(CI.getDiagnosticClient()),
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/*ShouldOwnClient=*/true);
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Instance.getDiagnostics().setSourceManager(&SM);
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// The instance wants to take ownership, however DisableFree frontend option
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// is set to true to avoid double free issues
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Instance.setFileManager(&CI.getFileManager());
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Instance.setSourceManager(&SM);
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Instance.setPreprocessor(CI.getPreprocessorPtr());
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Instance.setASTContext(&CI.getASTContext());
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Instance.getPreprocessor().InitializeForModelFile();
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ParseModelFileAction parseModelFile(Bodies);
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llvm::CrashRecoveryContext CRC;
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CRC.RunSafelyOnThread([&]() { Instance.ExecuteAction(parseModelFile); },
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DesiredStackSize);
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Instance.getPreprocessor().FinalizeForModelFile();
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Instance.resetAndLeakSourceManager();
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Instance.resetAndLeakFileManager();
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Instance.resetAndLeakPreprocessor();
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// The preprocessor enters to the main file id when parsing is started, so
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// the main file id is changed to the model file during parsing and it needs
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// to be reset to the former main file id after parsing of the model file
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// is done.
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SM.setMainFileID(mainFileID);
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}
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