r305850 - Preserve CXX method overrides in ASTImporter
Lang Hames via cfe-commits
cfe-commits at lists.llvm.org
Tue Jun 20 15:57:50 PDT 2017
Should be fixed in r305860.
- Lang.
On Tue, Jun 20, 2017 at 2:19 PM, Lang Hames <lhames at gmail.com> wrote:
> Oops - this broke Sema/ms_class_layout.cpp. Looking in to it now...
>
> - Lang.
>
> On Tue, Jun 20, 2017 at 2:06 PM, Lang Hames via cfe-commits <
> cfe-commits at lists.llvm.org> wrote:
>
>> Author: lhames
>> Date: Tue Jun 20 16:06:00 2017
>> New Revision: 305850
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=305850&view=rev
>> Log:
>> Preserve CXX method overrides in ASTImporter
>>
>> Summary:
>> The ASTImporter should import CXX method overrides from the source context
>> when it imports a method decl.
>>
>> Reviewers: spyffe, rsmith, doug.gregor
>>
>> Reviewed By: spyffe
>>
>> Differential Revision: https://reviews.llvm.org/D34371
>>
>> Modified:
>> cfe/trunk/lib/AST/ASTDumper.cpp
>> cfe/trunk/lib/AST/ASTImporter.cpp
>> cfe/trunk/tools/clang-import-test/clang-import-test.cpp
>>
>> Modified: cfe/trunk/lib/AST/ASTDumper.cpp
>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ASTDum
>> per.cpp?rev=305850&r1=305849&r2=305850&view=diff
>> ============================================================
>> ==================
>> --- cfe/trunk/lib/AST/ASTDumper.cpp (original)
>> +++ cfe/trunk/lib/AST/ASTDumper.cpp Tue Jun 20 16:06:00 2017
>> @@ -1184,6 +1184,28 @@ void ASTDumper::VisitFunctionDecl(const
>> I != E; ++I)
>> dumpCXXCtorInitializer(*I);
>>
>> + if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(D))
>> + if (MD->size_overridden_methods() != 0) {
>> + auto dumpOverride =
>> + [=](const CXXMethodDecl *D) {
>> + SplitQualType T_split = D->getType().split();
>> + OS << D << " " << D->getParent()->getName() << "::"
>> + << D->getName() << " '"
>> + << QualType::getAsString(T_split) << "'";
>> + };
>> +
>> + dumpChild([=] {
>> + auto FirstOverrideItr = MD->begin_overridden_methods();
>> + OS << "Overrides: [ ";
>> + dumpOverride(*FirstOverrideItr);
>> + for (const auto *Override :
>> + llvm::make_range(FirstOverrideItr + 1,
>> + MD->end_overridden_methods()))
>> + dumpOverride(Override);
>> + OS << " ]";
>> + });
>> + }
>> +
>> if (D->doesThisDeclarationHaveABody())
>> dumpStmt(D->getBody());
>> }
>>
>> Modified: cfe/trunk/lib/AST/ASTImporter.cpp
>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ASTImp
>> orter.cpp?rev=305850&r1=305849&r2=305850&view=diff
>> ============================================================
>> ==================
>> --- cfe/trunk/lib/AST/ASTImporter.cpp (original)
>> +++ cfe/trunk/lib/AST/ASTImporter.cpp Tue Jun 20 16:06:00 2017
>> @@ -319,6 +319,9 @@ namespace clang {
>> bool ImportArrayChecked(const InContainerTy &InContainer, OIter
>> Obegin) {
>> return ImportArrayChecked(InContainer.begin(), InContainer.end(),
>> Obegin);
>> }
>> +
>> + // Importing overrides.
>> + void ImportOverrides(CXXMethodDecl *ToMethod, CXXMethodDecl
>> *FromMethod);
>> };
>> }
>>
>> @@ -2025,6 +2028,9 @@ Decl *ASTNodeImporter::VisitFunctionDecl
>> // Add this function to the lexical context.
>> LexicalDC->addDeclInternal(ToFunction);
>>
>> + if (auto *FromCXXMethod = dyn_cast<CXXMethodDecl>(D))
>> + ImportOverrides(cast<CXXMethodDecl>(ToFunction), FromCXXMethod);
>> +
>> return ToFunction;
>> }
>>
>> @@ -5499,6 +5505,14 @@ Expr *ASTNodeImporter::VisitSubstNonType
>> Replacement);
>> }
>>
>> +void ASTNodeImporter::ImportOverrides(CXXMethodDecl *ToMethod,
>> + CXXMethodDecl *FromMethod) {
>> + for (auto *FromOverriddenMethod : FromMethod->overridden_methods())
>> + ToMethod->addOverriddenMethod(
>> + cast<CXXMethodDecl>(Importer.Import(const_cast<CXXMethodDecl*>(
>> + FromOverriddenMethod))));
>> +}
>> +
>> ASTImporter::ASTImporter(ASTContext &ToContext, FileManager
>> &ToFileManager,
>> ASTContext &FromContext, FileManager
>> &FromFileManager,
>> bool MinimalImport)
>>
>> Modified: cfe/trunk/tools/clang-import-test/clang-import-test.cpp
>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/clang-im
>> port-test/clang-import-test.cpp?rev=305850&r1=305849&r2=305850&view=diff
>> ============================================================
>> ==================
>> --- cfe/trunk/tools/clang-import-test/clang-import-test.cpp (original)
>> +++ cfe/trunk/tools/clang-import-test/clang-import-test.cpp Tue Jun 20
>> 16:06:00 2017
>> @@ -17,7 +17,9 @@
>> #include "clang/Basic/TargetInfo.h"
>> #include "clang/Basic/TargetOptions.h"
>> #include "clang/CodeGen/ModuleBuilder.h"
>> +#include "clang/Frontend/ASTConsumers.h"
>> #include "clang/Frontend/CompilerInstance.h"
>> +#include "clang/Frontend/MultiplexConsumer.h"
>> #include "clang/Frontend/TextDiagnosticBuffer.h"
>> #include "clang/Lex/Lexer.h"
>> #include "clang/Lex/Preprocessor.h"
>> @@ -51,6 +53,10 @@ static llvm::cl::list<std::string>
>> llvm::cl::desc("Argument to pass to the
>> CompilerInvocation"),
>> llvm::cl::CommaSeparated);
>>
>> +static llvm::cl::opt<bool>
>> +DumpAST("dump-ast", llvm::cl::init(false),
>> + llvm::cl::desc("Dump combined AST"));
>> +
>> namespace init_convenience {
>> class TestDiagnosticConsumer : public DiagnosticConsumer {
>> private:
>> @@ -233,7 +239,7 @@ std::unique_ptr<CompilerInstance> BuildI
>> }
>>
>> llvm::Error ParseSource(const std::string &Path, CompilerInstance &CI,
>> - CodeGenerator &CG) {
>> + ASTConsumer &Consumer) {
>> SourceManager &SM = CI.getSourceManager();
>> const FileEntry *FE = CI.getFileManager().getFile(Path);
>> if (!FE) {
>> @@ -241,13 +247,14 @@ llvm::Error ParseSource(const std::strin
>> llvm::Twine("Couldn't open ", Path), std::error_code());
>> }
>> SM.setMainFileID(SM.createFileID(FE, SourceLocation(),
>> SrcMgr::C_User));
>> - ParseAST(CI.getPreprocessor(), &CG, CI.getASTContext());
>> + ParseAST(CI.getPreprocessor(), &Consumer, CI.getASTContext());
>> return llvm::Error::success();
>> }
>>
>> llvm::Expected<std::unique_ptr<CompilerInstance>>
>> Parse(const std::string &Path,
>> - llvm::ArrayRef<std::unique_ptr<CompilerInstance>> Imports) {
>> + llvm::ArrayRef<std::unique_ptr<CompilerInstance>> Imports,
>> + bool ShouldDumpAST) {
>> std::vector<const char *> ClangArgv(ClangArgs.size());
>> std::transform(ClangArgs.begin(), ClangArgs.end(), ClangArgv.begin(),
>> [](const std::string &s) -> const char * { return
>> s.data(); });
>> @@ -261,14 +268,20 @@ Parse(const std::string &Path,
>> if (Imports.size())
>> AddExternalSource(*CI, Imports);
>>
>> + std::vector<std::unique_ptr<ASTConsumer>> ASTConsumers;
>> +
>> auto LLVMCtx = llvm::make_unique<llvm::LLVMContext>();
>> - std::unique_ptr<CodeGenerator> CG =
>> - init_convenience::BuildCodeGen(*CI, *LLVMCtx);
>> - CG->Initialize(CI->getASTContext());
>> + ASTConsumers.push_back(init_convenience::BuildCodeGen(*CI, *LLVMCtx));
>> +
>> + if (ShouldDumpAST)
>> + ASTConsumers.push_back(CreateASTDumper("", true, false, false));
>>
>> CI->getDiagnosticClient().BeginSourceFile(CI->getLangOpts(),
>> &CI->getPreprocessor());
>> - if (llvm::Error PE = ParseSource(Path, *CI, *CG)) {
>> + MultiplexConsumer Consumers(std::move(ASTConsumers));
>> + Consumers.Initialize(CI->getASTContext());
>> +
>> + if (llvm::Error PE = ParseSource(Path, *CI, Consumers)) {
>> return std::move(PE);
>> }
>> CI->getDiagnosticClient().EndSourceFile();
>> @@ -288,7 +301,8 @@ int main(int argc, const char **argv) {
>> llvm::cl::ParseCommandLineOptions(argc, argv);
>> std::vector<std::unique_ptr<CompilerInstance>> ImportCIs;
>> for (auto I : Imports) {
>> - llvm::Expected<std::unique_ptr<CompilerInstance>> ImportCI =
>> Parse(I, {});
>> + llvm::Expected<std::unique_ptr<CompilerInstance>> ImportCI =
>> + Parse(I, {}, false);
>> if (auto E = ImportCI.takeError()) {
>> llvm::errs() << llvm::toString(std::move(E));
>> exit(-1);
>> @@ -310,7 +324,7 @@ int main(int argc, const char **argv) {
>> }
>> }
>> llvm::Expected<std::unique_ptr<CompilerInstance>> ExpressionCI =
>> - Parse(Expression, Direct ? ImportCIs : IndirectCIs);
>> + Parse(Expression, Direct ? ImportCIs : IndirectCIs, DumpAST);
>> if (auto E = ExpressionCI.takeError()) {
>> llvm::errs() << llvm::toString(std::move(E));
>> exit(-1);
>>
>>
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>>
>
>
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