| //===-- ClangASTImporter.cpp ------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/Symbol/ClangASTImporter.h" |
| #include "lldb/Core/Module.h" |
| #include "lldb/Symbol/ClangASTContext.h" |
| #include "lldb/Symbol/ClangExternalASTSourceCommon.h" |
| #include "lldb/Symbol/ClangUtil.h" |
| #include "lldb/Utility/LLDBAssert.h" |
| #include "lldb/Utility/Log.h" |
| #include "clang/AST/Decl.h" |
| #include "clang/AST/DeclCXX.h" |
| #include "clang/AST/DeclObjC.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| using namespace lldb_private; |
| using namespace clang; |
| |
| ClangASTMetrics::Counters ClangASTMetrics::global_counters = {0, 0, 0, 0, 0, 0}; |
| ClangASTMetrics::Counters ClangASTMetrics::local_counters = {0, 0, 0, 0, 0, 0}; |
| |
| void ClangASTMetrics::DumpCounters(Log *log, |
| ClangASTMetrics::Counters &counters) { |
| log->Printf(" Number of visible Decl queries by name : %" PRIu64, |
| counters.m_visible_query_count); |
| log->Printf(" Number of lexical Decl queries : %" PRIu64, |
| counters.m_lexical_query_count); |
| log->Printf(" Number of imports initiated by LLDB : %" PRIu64, |
| counters.m_lldb_import_count); |
| log->Printf(" Number of imports conducted by Clang : %" PRIu64, |
| counters.m_clang_import_count); |
| log->Printf(" Number of Decls completed : %" PRIu64, |
| counters.m_decls_completed_count); |
| log->Printf(" Number of records laid out : %" PRIu64, |
| counters.m_record_layout_count); |
| } |
| |
| void ClangASTMetrics::DumpCounters(Log *log) { |
| if (!log) |
| return; |
| |
| log->Printf("== ClangASTMetrics output =="); |
| log->Printf("-- Global metrics --"); |
| DumpCounters(log, global_counters); |
| log->Printf("-- Local metrics --"); |
| DumpCounters(log, local_counters); |
| } |
| |
| clang::QualType ClangASTImporter::CopyType(clang::ASTContext *dst_ast, |
| clang::ASTContext *src_ast, |
| clang::QualType type) { |
| MinionSP minion_sp(GetMinion(dst_ast, src_ast)); |
| |
| if (minion_sp) |
| return minion_sp->Import(type); |
| |
| return QualType(); |
| } |
| |
| lldb::opaque_compiler_type_t |
| ClangASTImporter::CopyType(clang::ASTContext *dst_ast, |
| clang::ASTContext *src_ast, |
| lldb::opaque_compiler_type_t type) { |
| return CopyType(dst_ast, src_ast, QualType::getFromOpaquePtr(type)) |
| .getAsOpaquePtr(); |
| } |
| |
| CompilerType ClangASTImporter::CopyType(ClangASTContext &dst_ast, |
| const CompilerType &src_type) { |
| clang::ASTContext *dst_clang_ast = dst_ast.getASTContext(); |
| if (dst_clang_ast) { |
| ClangASTContext *src_ast = |
| llvm::dyn_cast_or_null<ClangASTContext>(src_type.GetTypeSystem()); |
| if (src_ast) { |
| clang::ASTContext *src_clang_ast = src_ast->getASTContext(); |
| if (src_clang_ast) { |
| lldb::opaque_compiler_type_t dst_clang_type = CopyType( |
| dst_clang_ast, src_clang_ast, src_type.GetOpaqueQualType()); |
| |
| if (dst_clang_type) |
| return CompilerType(&dst_ast, dst_clang_type); |
| } |
| } |
| } |
| return CompilerType(); |
| } |
| |
| clang::Decl *ClangASTImporter::CopyDecl(clang::ASTContext *dst_ast, |
| clang::ASTContext *src_ast, |
| clang::Decl *decl) { |
| MinionSP minion_sp; |
| |
| minion_sp = GetMinion(dst_ast, src_ast); |
| |
| if (minion_sp) { |
| clang::Decl *result = minion_sp->Import(decl); |
| |
| if (!result) { |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); |
| |
| if (log) { |
| lldb::user_id_t user_id = LLDB_INVALID_UID; |
| ClangASTMetadata *metadata = GetDeclMetadata(decl); |
| if (metadata) |
| user_id = metadata->GetUserID(); |
| |
| if (NamedDecl *named_decl = dyn_cast<NamedDecl>(decl)) |
| log->Printf(" [ClangASTImporter] WARNING: Failed to import a %s " |
| "'%s', metadata 0x%" PRIx64, |
| decl->getDeclKindName(), |
| named_decl->getNameAsString().c_str(), user_id); |
| else |
| log->Printf(" [ClangASTImporter] WARNING: Failed to import a %s, " |
| "metadata 0x%" PRIx64, |
| decl->getDeclKindName(), user_id); |
| } |
| } |
| |
| return result; |
| } |
| |
| return nullptr; |
| } |
| |
| class DeclContextOverride { |
| private: |
| struct Backup { |
| clang::DeclContext *decl_context; |
| clang::DeclContext *lexical_decl_context; |
| }; |
| |
| std::map<clang::Decl *, Backup> m_backups; |
| |
| void OverrideOne(clang::Decl *decl) { |
| if (m_backups.find(decl) != m_backups.end()) { |
| return; |
| } |
| |
| m_backups[decl] = {decl->getDeclContext(), decl->getLexicalDeclContext()}; |
| |
| decl->setDeclContext(decl->getASTContext().getTranslationUnitDecl()); |
| decl->setLexicalDeclContext(decl->getASTContext().getTranslationUnitDecl()); |
| } |
| |
| bool ChainPassesThrough( |
| clang::Decl *decl, clang::DeclContext *base, |
| clang::DeclContext *(clang::Decl::*contextFromDecl)(), |
| clang::DeclContext *(clang::DeclContext::*contextFromContext)()) { |
| for (DeclContext *decl_ctx = (decl->*contextFromDecl)(); decl_ctx; |
| decl_ctx = (decl_ctx->*contextFromContext)()) { |
| if (decl_ctx == base) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| clang::Decl *GetEscapedChild(clang::Decl *decl, |
| clang::DeclContext *base = nullptr) { |
| if (base) { |
| // decl's DeclContext chains must pass through base. |
| |
| if (!ChainPassesThrough(decl, base, &clang::Decl::getDeclContext, |
| &clang::DeclContext::getParent) || |
| !ChainPassesThrough(decl, base, &clang::Decl::getLexicalDeclContext, |
| &clang::DeclContext::getLexicalParent)) { |
| return decl; |
| } |
| } else { |
| base = clang::dyn_cast<clang::DeclContext>(decl); |
| |
| if (!base) { |
| return nullptr; |
| } |
| } |
| |
| if (clang::DeclContext *context = |
| clang::dyn_cast<clang::DeclContext>(decl)) { |
| for (clang::Decl *decl : context->decls()) { |
| if (clang::Decl *escaped_child = GetEscapedChild(decl)) { |
| return escaped_child; |
| } |
| } |
| } |
| |
| return nullptr; |
| } |
| |
| void Override(clang::Decl *decl) { |
| if (clang::Decl *escaped_child = GetEscapedChild(decl)) { |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); |
| |
| if (log) |
| log->Printf(" [ClangASTImporter] DeclContextOverride couldn't " |
| "override (%sDecl*)%p - its child (%sDecl*)%p escapes", |
| decl->getDeclKindName(), static_cast<void *>(decl), |
| escaped_child->getDeclKindName(), |
| static_cast<void *>(escaped_child)); |
| lldbassert(0 && "Couldn't override!"); |
| } |
| |
| OverrideOne(decl); |
| } |
| |
| public: |
| DeclContextOverride() {} |
| |
| void OverrideAllDeclsFromContainingFunction(clang::Decl *decl) { |
| for (DeclContext *decl_context = decl->getLexicalDeclContext(); |
| decl_context; decl_context = decl_context->getLexicalParent()) { |
| DeclContext *redecl_context = decl_context->getRedeclContext(); |
| |
| if (llvm::isa<FunctionDecl>(redecl_context) && |
| llvm::isa<TranslationUnitDecl>(redecl_context->getLexicalParent())) { |
| for (clang::Decl *child_decl : decl_context->decls()) { |
| Override(child_decl); |
| } |
| } |
| } |
| } |
| |
| ~DeclContextOverride() { |
| for (const std::pair<clang::Decl *, Backup> &backup : m_backups) { |
| backup.first->setDeclContext(backup.second.decl_context); |
| backup.first->setLexicalDeclContext(backup.second.lexical_decl_context); |
| } |
| } |
| }; |
| |
| lldb::opaque_compiler_type_t |
| ClangASTImporter::DeportType(clang::ASTContext *dst_ctx, |
| clang::ASTContext *src_ctx, |
| lldb::opaque_compiler_type_t type) { |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); |
| |
| if (log) |
| log->Printf(" [ClangASTImporter] DeportType called on (%sType*)0x%llx " |
| "from (ASTContext*)%p to (ASTContext*)%p", |
| QualType::getFromOpaquePtr(type)->getTypeClassName(), |
| (unsigned long long)type, static_cast<void *>(src_ctx), |
| static_cast<void *>(dst_ctx)); |
| |
| MinionSP minion_sp(GetMinion(dst_ctx, src_ctx)); |
| |
| if (!minion_sp) |
| return nullptr; |
| |
| std::set<NamedDecl *> decls_to_deport; |
| std::set<NamedDecl *> decls_already_deported; |
| |
| DeclContextOverride decl_context_override; |
| |
| if (const clang::TagType *tag_type = |
| clang::QualType::getFromOpaquePtr(type)->getAs<TagType>()) { |
| decl_context_override.OverrideAllDeclsFromContainingFunction( |
| tag_type->getDecl()); |
| } |
| |
| minion_sp->InitDeportWorkQueues(&decls_to_deport, &decls_already_deported); |
| |
| lldb::opaque_compiler_type_t result = CopyType(dst_ctx, src_ctx, type); |
| |
| minion_sp->ExecuteDeportWorkQueues(); |
| |
| if (!result) |
| return nullptr; |
| |
| return result; |
| } |
| |
| clang::Decl *ClangASTImporter::DeportDecl(clang::ASTContext *dst_ctx, |
| clang::ASTContext *src_ctx, |
| clang::Decl *decl) { |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); |
| |
| if (log) |
| log->Printf(" [ClangASTImporter] DeportDecl called on (%sDecl*)%p from " |
| "(ASTContext*)%p to (ASTContext*)%p", |
| decl->getDeclKindName(), static_cast<void *>(decl), |
| static_cast<void *>(src_ctx), static_cast<void *>(dst_ctx)); |
| |
| MinionSP minion_sp(GetMinion(dst_ctx, src_ctx)); |
| |
| if (!minion_sp) |
| return nullptr; |
| |
| std::set<NamedDecl *> decls_to_deport; |
| std::set<NamedDecl *> decls_already_deported; |
| |
| DeclContextOverride decl_context_override; |
| |
| decl_context_override.OverrideAllDeclsFromContainingFunction(decl); |
| |
| minion_sp->InitDeportWorkQueues(&decls_to_deport, &decls_already_deported); |
| |
| clang::Decl *result = CopyDecl(dst_ctx, src_ctx, decl); |
| |
| minion_sp->ExecuteDeportWorkQueues(); |
| |
| if (!result) |
| return nullptr; |
| |
| if (log) |
| log->Printf( |
| " [ClangASTImporter] DeportDecl deported (%sDecl*)%p to (%sDecl*)%p", |
| decl->getDeclKindName(), static_cast<void *>(decl), |
| result->getDeclKindName(), static_cast<void *>(result)); |
| |
| return result; |
| } |
| |
| bool ClangASTImporter::CanImport(const CompilerType &type) { |
| if (!ClangUtil::IsClangType(type)) |
| return false; |
| |
| // TODO: remove external completion BOOL |
| // CompleteAndFetchChildren should get the Decl out and check for the |
| |
| clang::QualType qual_type( |
| ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type))); |
| |
| const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
| switch (type_class) { |
| case clang::Type::Record: { |
| const clang::CXXRecordDecl *cxx_record_decl = |
| qual_type->getAsCXXRecordDecl(); |
| if (cxx_record_decl) { |
| if (ResolveDeclOrigin(cxx_record_decl, NULL, NULL)) |
| return true; |
| } |
| } break; |
| |
| case clang::Type::Enum: { |
| clang::EnumDecl *enum_decl = |
| llvm::cast<clang::EnumType>(qual_type)->getDecl(); |
| if (enum_decl) { |
| if (ResolveDeclOrigin(enum_decl, NULL, NULL)) |
| return true; |
| } |
| } break; |
| |
| case clang::Type::ObjCObject: |
| case clang::Type::ObjCInterface: { |
| const clang::ObjCObjectType *objc_class_type = |
| llvm::dyn_cast<clang::ObjCObjectType>(qual_type); |
| if (objc_class_type) { |
| clang::ObjCInterfaceDecl *class_interface_decl = |
| objc_class_type->getInterface(); |
| // We currently can't complete objective C types through the newly added |
| // ASTContext because it only supports TagDecl objects right now... |
| if (class_interface_decl) { |
| if (ResolveDeclOrigin(class_interface_decl, NULL, NULL)) |
| return true; |
| } |
| } |
| } break; |
| |
| case clang::Type::Typedef: |
| return CanImport(CompilerType(type.GetTypeSystem(), |
| llvm::cast<clang::TypedefType>(qual_type) |
| ->getDecl() |
| ->getUnderlyingType() |
| .getAsOpaquePtr())); |
| |
| case clang::Type::Auto: |
| return CanImport(CompilerType(type.GetTypeSystem(), |
| llvm::cast<clang::AutoType>(qual_type) |
| ->getDeducedType() |
| .getAsOpaquePtr())); |
| |
| case clang::Type::Elaborated: |
| return CanImport(CompilerType(type.GetTypeSystem(), |
| llvm::cast<clang::ElaboratedType>(qual_type) |
| ->getNamedType() |
| .getAsOpaquePtr())); |
| |
| case clang::Type::Paren: |
| return CanImport(CompilerType( |
| type.GetTypeSystem(), |
| llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())); |
| |
| default: |
| break; |
| } |
| |
| return false; |
| } |
| |
| bool ClangASTImporter::Import(const CompilerType &type) { |
| if (!ClangUtil::IsClangType(type)) |
| return false; |
| // TODO: remove external completion BOOL |
| // CompleteAndFetchChildren should get the Decl out and check for the |
| |
| clang::QualType qual_type( |
| ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type))); |
| |
| const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
| switch (type_class) { |
| case clang::Type::Record: { |
| const clang::CXXRecordDecl *cxx_record_decl = |
| qual_type->getAsCXXRecordDecl(); |
| if (cxx_record_decl) { |
| if (ResolveDeclOrigin(cxx_record_decl, NULL, NULL)) |
| return CompleteAndFetchChildren(qual_type); |
| } |
| } break; |
| |
| case clang::Type::Enum: { |
| clang::EnumDecl *enum_decl = |
| llvm::cast<clang::EnumType>(qual_type)->getDecl(); |
| if (enum_decl) { |
| if (ResolveDeclOrigin(enum_decl, NULL, NULL)) |
| return CompleteAndFetchChildren(qual_type); |
| } |
| } break; |
| |
| case clang::Type::ObjCObject: |
| case clang::Type::ObjCInterface: { |
| const clang::ObjCObjectType *objc_class_type = |
| llvm::dyn_cast<clang::ObjCObjectType>(qual_type); |
| if (objc_class_type) { |
| clang::ObjCInterfaceDecl *class_interface_decl = |
| objc_class_type->getInterface(); |
| // We currently can't complete objective C types through the newly added |
| // ASTContext because it only supports TagDecl objects right now... |
| if (class_interface_decl) { |
| if (ResolveDeclOrigin(class_interface_decl, NULL, NULL)) |
| return CompleteAndFetchChildren(qual_type); |
| } |
| } |
| } break; |
| |
| case clang::Type::Typedef: |
| return Import(CompilerType(type.GetTypeSystem(), |
| llvm::cast<clang::TypedefType>(qual_type) |
| ->getDecl() |
| ->getUnderlyingType() |
| .getAsOpaquePtr())); |
| |
| case clang::Type::Auto: |
| return Import(CompilerType(type.GetTypeSystem(), |
| llvm::cast<clang::AutoType>(qual_type) |
| ->getDeducedType() |
| .getAsOpaquePtr())); |
| |
| case clang::Type::Elaborated: |
| return Import(CompilerType(type.GetTypeSystem(), |
| llvm::cast<clang::ElaboratedType>(qual_type) |
| ->getNamedType() |
| .getAsOpaquePtr())); |
| |
| case clang::Type::Paren: |
| return Import(CompilerType( |
| type.GetTypeSystem(), |
| llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())); |
| |
| default: |
| break; |
| } |
| return false; |
| } |
| |
| bool ClangASTImporter::CompleteType(const CompilerType &compiler_type) { |
| if (!CanImport(compiler_type)) |
| return false; |
| |
| if (Import(compiler_type)) { |
| ClangASTContext::CompleteTagDeclarationDefinition(compiler_type); |
| return true; |
| } |
| |
| ClangASTContext::SetHasExternalStorage(compiler_type.GetOpaqueQualType(), |
| false); |
| return false; |
| } |
| |
| bool ClangASTImporter::LayoutRecordType( |
| const clang::RecordDecl *record_decl, uint64_t &bit_size, |
| uint64_t &alignment, |
| llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets, |
| llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> |
| &base_offsets, |
| llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> |
| &vbase_offsets) { |
| RecordDeclToLayoutMap::iterator pos = |
| m_record_decl_to_layout_map.find(record_decl); |
| bool success = false; |
| base_offsets.clear(); |
| vbase_offsets.clear(); |
| if (pos != m_record_decl_to_layout_map.end()) { |
| bit_size = pos->second.bit_size; |
| alignment = pos->second.alignment; |
| field_offsets.swap(pos->second.field_offsets); |
| base_offsets.swap(pos->second.base_offsets); |
| vbase_offsets.swap(pos->second.vbase_offsets); |
| m_record_decl_to_layout_map.erase(pos); |
| success = true; |
| } else { |
| bit_size = 0; |
| alignment = 0; |
| field_offsets.clear(); |
| } |
| return success; |
| } |
| |
| void ClangASTImporter::InsertRecordDecl(clang::RecordDecl *decl, |
| const LayoutInfo &layout) { |
| m_record_decl_to_layout_map.insert(std::make_pair(decl, layout)); |
| } |
| |
| void ClangASTImporter::CompleteDecl(clang::Decl *decl) { |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); |
| |
| if (log) |
| log->Printf(" [ClangASTImporter] CompleteDecl called on (%sDecl*)%p", |
| decl->getDeclKindName(), static_cast<void *>(decl)); |
| |
| if (ObjCInterfaceDecl *interface_decl = dyn_cast<ObjCInterfaceDecl>(decl)) { |
| if (!interface_decl->getDefinition()) { |
| interface_decl->startDefinition(); |
| CompleteObjCInterfaceDecl(interface_decl); |
| } |
| } else if (ObjCProtocolDecl *protocol_decl = |
| dyn_cast<ObjCProtocolDecl>(decl)) { |
| if (!protocol_decl->getDefinition()) |
| protocol_decl->startDefinition(); |
| } else if (TagDecl *tag_decl = dyn_cast<TagDecl>(decl)) { |
| if (!tag_decl->getDefinition() && !tag_decl->isBeingDefined()) { |
| tag_decl->startDefinition(); |
| CompleteTagDecl(tag_decl); |
| tag_decl->setCompleteDefinition(true); |
| } |
| } else { |
| assert(0 && "CompleteDecl called on a Decl that can't be completed"); |
| } |
| } |
| |
| bool ClangASTImporter::CompleteTagDecl(clang::TagDecl *decl) { |
| ClangASTMetrics::RegisterDeclCompletion(); |
| |
| DeclOrigin decl_origin = GetDeclOrigin(decl); |
| |
| if (!decl_origin.Valid()) |
| return false; |
| |
| if (!ClangASTContext::GetCompleteDecl(decl_origin.ctx, decl_origin.decl)) |
| return false; |
| |
| MinionSP minion_sp(GetMinion(&decl->getASTContext(), decl_origin.ctx)); |
| |
| if (minion_sp) |
| minion_sp->ImportDefinitionTo(decl, decl_origin.decl); |
| |
| return true; |
| } |
| |
| bool ClangASTImporter::CompleteTagDeclWithOrigin(clang::TagDecl *decl, |
| clang::TagDecl *origin_decl) { |
| ClangASTMetrics::RegisterDeclCompletion(); |
| |
| clang::ASTContext *origin_ast_ctx = &origin_decl->getASTContext(); |
| |
| if (!ClangASTContext::GetCompleteDecl(origin_ast_ctx, origin_decl)) |
| return false; |
| |
| MinionSP minion_sp(GetMinion(&decl->getASTContext(), origin_ast_ctx)); |
| |
| if (minion_sp) |
| minion_sp->ImportDefinitionTo(decl, origin_decl); |
| |
| ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); |
| |
| OriginMap &origins = context_md->m_origins; |
| |
| origins[decl] = DeclOrigin(origin_ast_ctx, origin_decl); |
| |
| return true; |
| } |
| |
| bool ClangASTImporter::CompleteObjCInterfaceDecl( |
| clang::ObjCInterfaceDecl *interface_decl) { |
| ClangASTMetrics::RegisterDeclCompletion(); |
| |
| DeclOrigin decl_origin = GetDeclOrigin(interface_decl); |
| |
| if (!decl_origin.Valid()) |
| return false; |
| |
| if (!ClangASTContext::GetCompleteDecl(decl_origin.ctx, decl_origin.decl)) |
| return false; |
| |
| MinionSP minion_sp( |
| GetMinion(&interface_decl->getASTContext(), decl_origin.ctx)); |
| |
| if (minion_sp) |
| minion_sp->ImportDefinitionTo(interface_decl, decl_origin.decl); |
| |
| if (ObjCInterfaceDecl *super_class = interface_decl->getSuperClass()) |
| RequireCompleteType(clang::QualType(super_class->getTypeForDecl(), 0)); |
| |
| return true; |
| } |
| |
| bool ClangASTImporter::CompleteAndFetchChildren(clang::QualType type) { |
| if (!RequireCompleteType(type)) |
| return false; |
| |
| if (const TagType *tag_type = type->getAs<TagType>()) { |
| TagDecl *tag_decl = tag_type->getDecl(); |
| |
| DeclOrigin decl_origin = GetDeclOrigin(tag_decl); |
| |
| if (!decl_origin.Valid()) |
| return false; |
| |
| MinionSP minion_sp(GetMinion(&tag_decl->getASTContext(), decl_origin.ctx)); |
| |
| TagDecl *origin_tag_decl = llvm::dyn_cast<TagDecl>(decl_origin.decl); |
| |
| for (Decl *origin_child_decl : origin_tag_decl->decls()) { |
| minion_sp->Import(origin_child_decl); |
| } |
| |
| if (RecordDecl *record_decl = dyn_cast<RecordDecl>(origin_tag_decl)) { |
| record_decl->setHasLoadedFieldsFromExternalStorage(true); |
| } |
| |
| return true; |
| } |
| |
| if (const ObjCObjectType *objc_object_type = type->getAs<ObjCObjectType>()) { |
| if (ObjCInterfaceDecl *objc_interface_decl = |
| objc_object_type->getInterface()) { |
| DeclOrigin decl_origin = GetDeclOrigin(objc_interface_decl); |
| |
| if (!decl_origin.Valid()) |
| return false; |
| |
| MinionSP minion_sp( |
| GetMinion(&objc_interface_decl->getASTContext(), decl_origin.ctx)); |
| |
| ObjCInterfaceDecl *origin_interface_decl = |
| llvm::dyn_cast<ObjCInterfaceDecl>(decl_origin.decl); |
| |
| for (Decl *origin_child_decl : origin_interface_decl->decls()) { |
| minion_sp->Import(origin_child_decl); |
| } |
| |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ClangASTImporter::RequireCompleteType(clang::QualType type) { |
| if (type.isNull()) |
| return false; |
| |
| if (const TagType *tag_type = type->getAs<TagType>()) { |
| TagDecl *tag_decl = tag_type->getDecl(); |
| |
| if (tag_decl->getDefinition() || tag_decl->isBeingDefined()) |
| return true; |
| |
| return CompleteTagDecl(tag_decl); |
| } |
| if (const ObjCObjectType *objc_object_type = type->getAs<ObjCObjectType>()) { |
| if (ObjCInterfaceDecl *objc_interface_decl = |
| objc_object_type->getInterface()) |
| return CompleteObjCInterfaceDecl(objc_interface_decl); |
| else |
| return false; |
| } |
| if (const ArrayType *array_type = type->getAsArrayTypeUnsafe()) { |
| return RequireCompleteType(array_type->getElementType()); |
| } |
| if (const AtomicType *atomic_type = type->getAs<AtomicType>()) { |
| return RequireCompleteType(atomic_type->getPointeeType()); |
| } |
| |
| return true; |
| } |
| |
| ClangASTMetadata *ClangASTImporter::GetDeclMetadata(const clang::Decl *decl) { |
| DeclOrigin decl_origin = GetDeclOrigin(decl); |
| |
| if (decl_origin.Valid()) |
| return ClangASTContext::GetMetadata(decl_origin.ctx, decl_origin.decl); |
| else |
| return ClangASTContext::GetMetadata(&decl->getASTContext(), decl); |
| } |
| |
| ClangASTImporter::DeclOrigin |
| ClangASTImporter::GetDeclOrigin(const clang::Decl *decl) { |
| ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); |
| |
| OriginMap &origins = context_md->m_origins; |
| |
| OriginMap::iterator iter = origins.find(decl); |
| |
| if (iter != origins.end()) |
| return iter->second; |
| else |
| return DeclOrigin(); |
| } |
| |
| void ClangASTImporter::SetDeclOrigin(const clang::Decl *decl, |
| clang::Decl *original_decl) { |
| ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); |
| |
| OriginMap &origins = context_md->m_origins; |
| |
| OriginMap::iterator iter = origins.find(decl); |
| |
| if (iter != origins.end()) { |
| iter->second.decl = original_decl; |
| iter->second.ctx = &original_decl->getASTContext(); |
| } else { |
| origins[decl] = DeclOrigin(&original_decl->getASTContext(), original_decl); |
| } |
| } |
| |
| void ClangASTImporter::RegisterNamespaceMap(const clang::NamespaceDecl *decl, |
| NamespaceMapSP &namespace_map) { |
| ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); |
| |
| context_md->m_namespace_maps[decl] = namespace_map; |
| } |
| |
| ClangASTImporter::NamespaceMapSP |
| ClangASTImporter::GetNamespaceMap(const clang::NamespaceDecl *decl) { |
| ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); |
| |
| NamespaceMetaMap &namespace_maps = context_md->m_namespace_maps; |
| |
| NamespaceMetaMap::iterator iter = namespace_maps.find(decl); |
| |
| if (iter != namespace_maps.end()) |
| return iter->second; |
| else |
| return NamespaceMapSP(); |
| } |
| |
| void ClangASTImporter::BuildNamespaceMap(const clang::NamespaceDecl *decl) { |
| assert(decl); |
| ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); |
| |
| const DeclContext *parent_context = decl->getDeclContext(); |
| const NamespaceDecl *parent_namespace = |
| dyn_cast<NamespaceDecl>(parent_context); |
| NamespaceMapSP parent_map; |
| |
| if (parent_namespace) |
| parent_map = GetNamespaceMap(parent_namespace); |
| |
| NamespaceMapSP new_map; |
| |
| new_map.reset(new NamespaceMap); |
| |
| if (context_md->m_map_completer) { |
| std::string namespace_string = decl->getDeclName().getAsString(); |
| |
| context_md->m_map_completer->CompleteNamespaceMap( |
| new_map, ConstString(namespace_string.c_str()), parent_map); |
| } |
| |
| context_md->m_namespace_maps[decl] = new_map; |
| } |
| |
| void ClangASTImporter::ForgetDestination(clang::ASTContext *dst_ast) { |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); |
| |
| if (log) |
| log->Printf(" [ClangASTImporter] Forgetting destination (ASTContext*)%p", |
| static_cast<void *>(dst_ast)); |
| |
| m_metadata_map.erase(dst_ast); |
| } |
| |
| void ClangASTImporter::ForgetSource(clang::ASTContext *dst_ast, |
| clang::ASTContext *src_ast) { |
| ASTContextMetadataSP md = MaybeGetContextMetadata(dst_ast); |
| |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); |
| |
| if (log) |
| log->Printf(" [ClangASTImporter] Forgetting source->dest " |
| "(ASTContext*)%p->(ASTContext*)%p", |
| static_cast<void *>(src_ast), static_cast<void *>(dst_ast)); |
| |
| if (!md) |
| return; |
| |
| md->m_minions.erase(src_ast); |
| |
| for (OriginMap::iterator iter = md->m_origins.begin(); |
| iter != md->m_origins.end();) { |
| if (iter->second.ctx == src_ast) |
| md->m_origins.erase(iter++); |
| else |
| ++iter; |
| } |
| } |
| |
| ClangASTImporter::MapCompleter::~MapCompleter() { return; } |
| |
| void ClangASTImporter::Minion::InitDeportWorkQueues( |
| std::set<clang::NamedDecl *> *decls_to_deport, |
| std::set<clang::NamedDecl *> *decls_already_deported) { |
| assert(!m_decls_to_deport); |
| assert(!m_decls_already_deported); |
| |
| m_decls_to_deport = decls_to_deport; |
| m_decls_already_deported = decls_already_deported; |
| } |
| |
| void ClangASTImporter::Minion::ExecuteDeportWorkQueues() { |
| assert(m_decls_to_deport); |
| assert(m_decls_already_deported); |
| |
| ASTContextMetadataSP to_context_md = |
| m_master.GetContextMetadata(&getToContext()); |
| |
| while (!m_decls_to_deport->empty()) { |
| NamedDecl *decl = *m_decls_to_deport->begin(); |
| |
| m_decls_already_deported->insert(decl); |
| m_decls_to_deport->erase(decl); |
| |
| DeclOrigin &origin = to_context_md->m_origins[decl]; |
| UNUSED_IF_ASSERT_DISABLED(origin); |
| |
| assert(origin.ctx == |
| m_source_ctx); // otherwise we should never have added this |
| // because it doesn't need to be deported |
| |
| Decl *original_decl = to_context_md->m_origins[decl].decl; |
| |
| ClangASTContext::GetCompleteDecl(m_source_ctx, original_decl); |
| |
| if (TagDecl *tag_decl = dyn_cast<TagDecl>(decl)) { |
| if (TagDecl *original_tag_decl = dyn_cast<TagDecl>(original_decl)) { |
| if (original_tag_decl->isCompleteDefinition()) { |
| ImportDefinitionTo(tag_decl, original_tag_decl); |
| tag_decl->setCompleteDefinition(true); |
| } |
| } |
| |
| tag_decl->setHasExternalLexicalStorage(false); |
| tag_decl->setHasExternalVisibleStorage(false); |
| } else if (ObjCContainerDecl *container_decl = |
| dyn_cast<ObjCContainerDecl>(decl)) { |
| container_decl->setHasExternalLexicalStorage(false); |
| container_decl->setHasExternalVisibleStorage(false); |
| } |
| |
| to_context_md->m_origins.erase(decl); |
| } |
| |
| m_decls_to_deport = nullptr; |
| m_decls_already_deported = nullptr; |
| } |
| |
| void ClangASTImporter::Minion::ImportDefinitionTo(clang::Decl *to, |
| clang::Decl *from) { |
| ASTImporter::Imported(from, to); |
| |
| /* |
| if (to_objc_interface) |
| to_objc_interface->startDefinition(); |
| |
| CXXRecordDecl *to_cxx_record = dyn_cast<CXXRecordDecl>(to); |
| |
| if (to_cxx_record) |
| to_cxx_record->startDefinition(); |
| */ |
| |
| ImportDefinition(from); |
| |
| if (clang::TagDecl *to_tag = dyn_cast<clang::TagDecl>(to)) { |
| if (clang::TagDecl *from_tag = dyn_cast<clang::TagDecl>(from)) { |
| to_tag->setCompleteDefinition(from_tag->isCompleteDefinition()); |
| } |
| } |
| |
| // If we're dealing with an Objective-C class, ensure that the inheritance |
| // has been set up correctly. The ASTImporter may not do this correctly if |
| // the class was originally sourced from symbols. |
| |
| if (ObjCInterfaceDecl *to_objc_interface = dyn_cast<ObjCInterfaceDecl>(to)) { |
| do { |
| ObjCInterfaceDecl *to_superclass = to_objc_interface->getSuperClass(); |
| |
| if (to_superclass) |
| break; // we're not going to override it if it's set |
| |
| ObjCInterfaceDecl *from_objc_interface = |
| dyn_cast<ObjCInterfaceDecl>(from); |
| |
| if (!from_objc_interface) |
| break; |
| |
| ObjCInterfaceDecl *from_superclass = from_objc_interface->getSuperClass(); |
| |
| if (!from_superclass) |
| break; |
| |
| Decl *imported_from_superclass_decl = Import(from_superclass); |
| |
| if (!imported_from_superclass_decl) |
| break; |
| |
| ObjCInterfaceDecl *imported_from_superclass = |
| dyn_cast<ObjCInterfaceDecl>(imported_from_superclass_decl); |
| |
| if (!imported_from_superclass) |
| break; |
| |
| if (!to_objc_interface->hasDefinition()) |
| to_objc_interface->startDefinition(); |
| |
| to_objc_interface->setSuperClass(m_source_ctx->getTrivialTypeSourceInfo( |
| m_source_ctx->getObjCInterfaceType(imported_from_superclass))); |
| } while (0); |
| } |
| } |
| |
| clang::Decl *ClangASTImporter::Minion::Imported(clang::Decl *from, |
| clang::Decl *to) { |
| ClangASTMetrics::RegisterClangImport(); |
| |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); |
| |
| lldb::user_id_t user_id = LLDB_INVALID_UID; |
| ClangASTMetadata *metadata = m_master.GetDeclMetadata(from); |
| if (metadata) |
| user_id = metadata->GetUserID(); |
| |
| if (log) { |
| if (NamedDecl *from_named_decl = dyn_cast<clang::NamedDecl>(from)) { |
| std::string name_string; |
| llvm::raw_string_ostream name_stream(name_string); |
| from_named_decl->printName(name_stream); |
| name_stream.flush(); |
| |
| log->Printf(" [ClangASTImporter] Imported (%sDecl*)%p, named %s (from " |
| "(Decl*)%p), metadata 0x%" PRIx64, |
| from->getDeclKindName(), static_cast<void *>(to), |
| name_string.c_str(), static_cast<void *>(from), user_id); |
| } else { |
| log->Printf(" [ClangASTImporter] Imported (%sDecl*)%p (from " |
| "(Decl*)%p), metadata 0x%" PRIx64, |
| from->getDeclKindName(), static_cast<void *>(to), |
| static_cast<void *>(from), user_id); |
| } |
| } |
| |
| ASTContextMetadataSP to_context_md = |
| m_master.GetContextMetadata(&to->getASTContext()); |
| ASTContextMetadataSP from_context_md = |
| m_master.MaybeGetContextMetadata(m_source_ctx); |
| |
| if (from_context_md) { |
| OriginMap &origins = from_context_md->m_origins; |
| |
| OriginMap::iterator origin_iter = origins.find(from); |
| |
| if (origin_iter != origins.end()) { |
| if (to_context_md->m_origins.find(to) == to_context_md->m_origins.end() || |
| user_id != LLDB_INVALID_UID) { |
| if (origin_iter->second.ctx != &to->getASTContext()) |
| to_context_md->m_origins[to] = origin_iter->second; |
| } |
| |
| MinionSP direct_completer = |
| m_master.GetMinion(&to->getASTContext(), origin_iter->second.ctx); |
| |
| if (direct_completer.get() != this) |
| direct_completer->ASTImporter::Imported(origin_iter->second.decl, to); |
| |
| if (log) |
| log->Printf(" [ClangASTImporter] Propagated origin " |
| "(Decl*)%p/(ASTContext*)%p from (ASTContext*)%p to " |
| "(ASTContext*)%p", |
| static_cast<void *>(origin_iter->second.decl), |
| static_cast<void *>(origin_iter->second.ctx), |
| static_cast<void *>(&from->getASTContext()), |
| static_cast<void *>(&to->getASTContext())); |
| } else { |
| if (m_decls_to_deport && m_decls_already_deported) { |
| if (isa<TagDecl>(to) || isa<ObjCInterfaceDecl>(to)) { |
| RecordDecl *from_record_decl = dyn_cast<RecordDecl>(from); |
| if (from_record_decl == nullptr || |
| from_record_decl->isInjectedClassName() == false) { |
| NamedDecl *to_named_decl = dyn_cast<NamedDecl>(to); |
| |
| if (!m_decls_already_deported->count(to_named_decl)) |
| m_decls_to_deport->insert(to_named_decl); |
| } |
| } |
| } |
| |
| if (to_context_md->m_origins.find(to) == to_context_md->m_origins.end() || |
| user_id != LLDB_INVALID_UID) { |
| to_context_md->m_origins[to] = DeclOrigin(m_source_ctx, from); |
| } |
| |
| if (log) |
| log->Printf(" [ClangASTImporter] Decl has no origin information in " |
| "(ASTContext*)%p", |
| static_cast<void *>(&from->getASTContext())); |
| } |
| |
| if (clang::NamespaceDecl *to_namespace = |
| dyn_cast<clang::NamespaceDecl>(to)) { |
| clang::NamespaceDecl *from_namespace = |
| dyn_cast<clang::NamespaceDecl>(from); |
| |
| NamespaceMetaMap &namespace_maps = from_context_md->m_namespace_maps; |
| |
| NamespaceMetaMap::iterator namespace_map_iter = |
| namespace_maps.find(from_namespace); |
| |
| if (namespace_map_iter != namespace_maps.end()) |
| to_context_md->m_namespace_maps[to_namespace] = |
| namespace_map_iter->second; |
| } |
| } else { |
| to_context_md->m_origins[to] = DeclOrigin(m_source_ctx, from); |
| |
| if (log) |
| log->Printf(" [ClangASTImporter] Sourced origin " |
| "(Decl*)%p/(ASTContext*)%p into (ASTContext*)%p", |
| static_cast<void *>(from), static_cast<void *>(m_source_ctx), |
| static_cast<void *>(&to->getASTContext())); |
| } |
| |
| if (TagDecl *from_tag_decl = dyn_cast<TagDecl>(from)) { |
| TagDecl *to_tag_decl = dyn_cast<TagDecl>(to); |
| |
| to_tag_decl->setHasExternalLexicalStorage(); |
| to_tag_decl->setMustBuildLookupTable(); |
| |
| if (log) |
| log->Printf( |
| " [ClangASTImporter] To is a TagDecl - attributes %s%s [%s->%s]", |
| (to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""), |
| (to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""), |
| (from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"), |
| (to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete")); |
| } |
| |
| if (isa<NamespaceDecl>(from)) { |
| NamespaceDecl *to_namespace_decl = dyn_cast<NamespaceDecl>(to); |
| |
| m_master.BuildNamespaceMap(to_namespace_decl); |
| |
| to_namespace_decl->setHasExternalVisibleStorage(); |
| } |
| |
| if (isa<ObjCContainerDecl>(from)) { |
| ObjCContainerDecl *to_container_decl = dyn_cast<ObjCContainerDecl>(to); |
| |
| to_container_decl->setHasExternalLexicalStorage(); |
| to_container_decl->setHasExternalVisibleStorage(); |
| |
| /*to_interface_decl->setExternallyCompleted();*/ |
| |
| if (log) { |
| if (ObjCInterfaceDecl *to_interface_decl = |
| llvm::dyn_cast<ObjCInterfaceDecl>(to_container_decl)) { |
| log->Printf( |
| " [ClangASTImporter] To is an ObjCInterfaceDecl - attributes " |
| "%s%s%s", |
| (to_interface_decl->hasExternalLexicalStorage() ? " Lexical" : ""), |
| (to_interface_decl->hasExternalVisibleStorage() ? " Visible" : ""), |
| (to_interface_decl->hasDefinition() ? " HasDefinition" : "")); |
| } else { |
| log->Printf( |
| " [ClangASTImporter] To is an %sDecl - attributes %s%s", |
| ((Decl *)to_container_decl)->getDeclKindName(), |
| (to_container_decl->hasExternalLexicalStorage() ? " Lexical" : ""), |
| (to_container_decl->hasExternalVisibleStorage() ? " Visible" : "")); |
| } |
| } |
| } |
| |
| return clang::ASTImporter::Imported(from, to); |
| } |
| |
| clang::Decl *ClangASTImporter::Minion::GetOriginalDecl(clang::Decl *To) { |
| ASTContextMetadataSP to_context_md = |
| m_master.GetContextMetadata(&To->getASTContext()); |
| |
| if (!to_context_md) |
| return nullptr; |
| |
| OriginMap::iterator iter = to_context_md->m_origins.find(To); |
| |
| if (iter == to_context_md->m_origins.end()) |
| return nullptr; |
| |
| return const_cast<clang::Decl *>(iter->second.decl); |
| } |
