3356c32098
Summary: I think there universal agreement that Minion isn't the best name for this class. This patch renames the class to ASTImporterDelegate to better reflect it's goal of monitoring and extending the ASTImporter. Reviewers: aprantl, shafik, martong, a.sidorin, davide Reviewed By: aprantl, shafik, davide Subscribers: rnkovacs, davide, abidh, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D61299 llvm-svn: 359777
1153 lines
38 KiB
C++
1153 lines
38 KiB
C++
//===-- ClangASTImporter.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 "lldb/Symbol/ClangASTImporter.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Symbol/ClangASTContext.h"
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#include "lldb/Symbol/ClangExternalASTSourceCommon.h"
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#include "lldb/Symbol/ClangUtil.h"
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#include "lldb/Utility/LLDBAssert.h"
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#include "lldb/Utility/Log.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/Sema/Lookup.h"
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#include "clang/Sema/Sema.h"
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#include "llvm/Support/raw_ostream.h"
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#include <memory>
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using namespace lldb_private;
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using namespace clang;
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ClangASTMetrics::Counters ClangASTMetrics::global_counters = {0, 0, 0, 0, 0, 0};
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ClangASTMetrics::Counters ClangASTMetrics::local_counters = {0, 0, 0, 0, 0, 0};
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void ClangASTMetrics::DumpCounters(Log *log,
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ClangASTMetrics::Counters &counters) {
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log->Printf(" Number of visible Decl queries by name : %" PRIu64,
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counters.m_visible_query_count);
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log->Printf(" Number of lexical Decl queries : %" PRIu64,
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counters.m_lexical_query_count);
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log->Printf(" Number of imports initiated by LLDB : %" PRIu64,
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counters.m_lldb_import_count);
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log->Printf(" Number of imports conducted by Clang : %" PRIu64,
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counters.m_clang_import_count);
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log->Printf(" Number of Decls completed : %" PRIu64,
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counters.m_decls_completed_count);
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log->Printf(" Number of records laid out : %" PRIu64,
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counters.m_record_layout_count);
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}
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void ClangASTMetrics::DumpCounters(Log *log) {
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if (!log)
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return;
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log->Printf("== ClangASTMetrics output ==");
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log->Printf("-- Global metrics --");
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DumpCounters(log, global_counters);
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log->Printf("-- Local metrics --");
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DumpCounters(log, local_counters);
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}
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clang::QualType ClangASTImporter::CopyType(clang::ASTContext *dst_ast,
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clang::ASTContext *src_ast,
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clang::QualType type) {
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ImporterDelegateSP delegate_sp(GetDelegate(dst_ast, src_ast));
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ASTImporterDelegate::CxxModuleScope std_scope(*delegate_sp, dst_ast);
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if (delegate_sp)
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return delegate_sp->Import(type);
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return QualType();
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}
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lldb::opaque_compiler_type_t
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ClangASTImporter::CopyType(clang::ASTContext *dst_ast,
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clang::ASTContext *src_ast,
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lldb::opaque_compiler_type_t type) {
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return CopyType(dst_ast, src_ast, QualType::getFromOpaquePtr(type))
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.getAsOpaquePtr();
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}
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CompilerType ClangASTImporter::CopyType(ClangASTContext &dst_ast,
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const CompilerType &src_type) {
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clang::ASTContext *dst_clang_ast = dst_ast.getASTContext();
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if (dst_clang_ast) {
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ClangASTContext *src_ast =
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llvm::dyn_cast_or_null<ClangASTContext>(src_type.GetTypeSystem());
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if (src_ast) {
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clang::ASTContext *src_clang_ast = src_ast->getASTContext();
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if (src_clang_ast) {
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lldb::opaque_compiler_type_t dst_clang_type = CopyType(
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dst_clang_ast, src_clang_ast, src_type.GetOpaqueQualType());
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if (dst_clang_type)
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return CompilerType(&dst_ast, dst_clang_type);
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}
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}
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}
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return CompilerType();
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}
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clang::Decl *ClangASTImporter::CopyDecl(clang::ASTContext *dst_ast,
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clang::ASTContext *src_ast,
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clang::Decl *decl) {
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ImporterDelegateSP delegate_sp;
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delegate_sp = GetDelegate(dst_ast, src_ast);
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ASTImporterDelegate::CxxModuleScope std_scope(*delegate_sp, dst_ast);
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if (delegate_sp) {
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clang::Decl *result = delegate_sp->Import(decl);
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if (!result) {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
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if (log) {
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lldb::user_id_t user_id = LLDB_INVALID_UID;
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ClangASTMetadata *metadata = GetDeclMetadata(decl);
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if (metadata)
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user_id = metadata->GetUserID();
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if (NamedDecl *named_decl = dyn_cast<NamedDecl>(decl))
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log->Printf(" [ClangASTImporter] WARNING: Failed to import a %s "
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"'%s', metadata 0x%" PRIx64,
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decl->getDeclKindName(),
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named_decl->getNameAsString().c_str(), user_id);
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else
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log->Printf(" [ClangASTImporter] WARNING: Failed to import a %s, "
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"metadata 0x%" PRIx64,
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decl->getDeclKindName(), user_id);
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}
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}
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return result;
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}
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return nullptr;
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}
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class DeclContextOverride {
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private:
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struct Backup {
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clang::DeclContext *decl_context;
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clang::DeclContext *lexical_decl_context;
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};
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std::map<clang::Decl *, Backup> m_backups;
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void OverrideOne(clang::Decl *decl) {
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if (m_backups.find(decl) != m_backups.end()) {
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return;
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}
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m_backups[decl] = {decl->getDeclContext(), decl->getLexicalDeclContext()};
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decl->setDeclContext(decl->getASTContext().getTranslationUnitDecl());
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decl->setLexicalDeclContext(decl->getASTContext().getTranslationUnitDecl());
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}
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bool ChainPassesThrough(
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clang::Decl *decl, clang::DeclContext *base,
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clang::DeclContext *(clang::Decl::*contextFromDecl)(),
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clang::DeclContext *(clang::DeclContext::*contextFromContext)()) {
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for (DeclContext *decl_ctx = (decl->*contextFromDecl)(); decl_ctx;
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decl_ctx = (decl_ctx->*contextFromContext)()) {
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if (decl_ctx == base) {
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return true;
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}
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}
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return false;
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}
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clang::Decl *GetEscapedChild(clang::Decl *decl,
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clang::DeclContext *base = nullptr) {
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if (base) {
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// decl's DeclContext chains must pass through base.
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if (!ChainPassesThrough(decl, base, &clang::Decl::getDeclContext,
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&clang::DeclContext::getParent) ||
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!ChainPassesThrough(decl, base, &clang::Decl::getLexicalDeclContext,
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&clang::DeclContext::getLexicalParent)) {
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return decl;
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}
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} else {
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base = clang::dyn_cast<clang::DeclContext>(decl);
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if (!base) {
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return nullptr;
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}
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}
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if (clang::DeclContext *context =
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clang::dyn_cast<clang::DeclContext>(decl)) {
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for (clang::Decl *decl : context->decls()) {
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if (clang::Decl *escaped_child = GetEscapedChild(decl)) {
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return escaped_child;
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}
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}
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}
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return nullptr;
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}
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void Override(clang::Decl *decl) {
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if (clang::Decl *escaped_child = GetEscapedChild(decl)) {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
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if (log)
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log->Printf(" [ClangASTImporter] DeclContextOverride couldn't "
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"override (%sDecl*)%p - its child (%sDecl*)%p escapes",
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decl->getDeclKindName(), static_cast<void *>(decl),
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escaped_child->getDeclKindName(),
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static_cast<void *>(escaped_child));
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lldbassert(0 && "Couldn't override!");
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}
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OverrideOne(decl);
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}
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public:
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DeclContextOverride() {}
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void OverrideAllDeclsFromContainingFunction(clang::Decl *decl) {
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for (DeclContext *decl_context = decl->getLexicalDeclContext();
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decl_context; decl_context = decl_context->getLexicalParent()) {
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DeclContext *redecl_context = decl_context->getRedeclContext();
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if (llvm::isa<FunctionDecl>(redecl_context) &&
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llvm::isa<TranslationUnitDecl>(redecl_context->getLexicalParent())) {
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for (clang::Decl *child_decl : decl_context->decls()) {
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Override(child_decl);
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}
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}
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}
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}
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~DeclContextOverride() {
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for (const std::pair<clang::Decl *, Backup> &backup : m_backups) {
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backup.first->setDeclContext(backup.second.decl_context);
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backup.first->setLexicalDeclContext(backup.second.lexical_decl_context);
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}
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}
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};
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lldb::opaque_compiler_type_t
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ClangASTImporter::DeportType(clang::ASTContext *dst_ctx,
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clang::ASTContext *src_ctx,
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lldb::opaque_compiler_type_t type) {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
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if (log)
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log->Printf(" [ClangASTImporter] DeportType called on (%sType*)0x%llx "
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"from (ASTContext*)%p to (ASTContext*)%p",
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QualType::getFromOpaquePtr(type)->getTypeClassName(),
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(unsigned long long)type, static_cast<void *>(src_ctx),
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static_cast<void *>(dst_ctx));
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ImporterDelegateSP delegate_sp(GetDelegate(dst_ctx, src_ctx));
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if (!delegate_sp)
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return nullptr;
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std::set<NamedDecl *> decls_to_deport;
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std::set<NamedDecl *> decls_already_deported;
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DeclContextOverride decl_context_override;
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if (const clang::TagType *tag_type =
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clang::QualType::getFromOpaquePtr(type)->getAs<TagType>()) {
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decl_context_override.OverrideAllDeclsFromContainingFunction(
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tag_type->getDecl());
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}
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delegate_sp->InitDeportWorkQueues(&decls_to_deport, &decls_already_deported);
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lldb::opaque_compiler_type_t result = CopyType(dst_ctx, src_ctx, type);
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delegate_sp->ExecuteDeportWorkQueues();
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if (!result)
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return nullptr;
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return result;
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}
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clang::Decl *ClangASTImporter::DeportDecl(clang::ASTContext *dst_ctx,
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clang::ASTContext *src_ctx,
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clang::Decl *decl) {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
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if (log)
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log->Printf(" [ClangASTImporter] DeportDecl called on (%sDecl*)%p from "
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"(ASTContext*)%p to (ASTContext*)%p",
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decl->getDeclKindName(), static_cast<void *>(decl),
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static_cast<void *>(src_ctx), static_cast<void *>(dst_ctx));
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ImporterDelegateSP delegate_sp(GetDelegate(dst_ctx, src_ctx));
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if (!delegate_sp)
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return nullptr;
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std::set<NamedDecl *> decls_to_deport;
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std::set<NamedDecl *> decls_already_deported;
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DeclContextOverride decl_context_override;
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decl_context_override.OverrideAllDeclsFromContainingFunction(decl);
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delegate_sp->InitDeportWorkQueues(&decls_to_deport, &decls_already_deported);
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clang::Decl *result = CopyDecl(dst_ctx, src_ctx, decl);
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delegate_sp->ExecuteDeportWorkQueues();
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if (!result)
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return nullptr;
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if (log)
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log->Printf(
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" [ClangASTImporter] DeportDecl deported (%sDecl*)%p to (%sDecl*)%p",
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decl->getDeclKindName(), static_cast<void *>(decl),
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result->getDeclKindName(), static_cast<void *>(result));
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return result;
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}
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bool ClangASTImporter::CanImport(const CompilerType &type) {
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if (!ClangUtil::IsClangType(type))
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return false;
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// TODO: remove external completion BOOL
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// CompleteAndFetchChildren should get the Decl out and check for the
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clang::QualType qual_type(
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ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type)));
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const clang::Type::TypeClass type_class = qual_type->getTypeClass();
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switch (type_class) {
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case clang::Type::Record: {
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const clang::CXXRecordDecl *cxx_record_decl =
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qual_type->getAsCXXRecordDecl();
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if (cxx_record_decl) {
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if (ResolveDeclOrigin(cxx_record_decl, NULL, NULL))
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return true;
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}
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} break;
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case clang::Type::Enum: {
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clang::EnumDecl *enum_decl =
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llvm::cast<clang::EnumType>(qual_type)->getDecl();
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if (enum_decl) {
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if (ResolveDeclOrigin(enum_decl, NULL, NULL))
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return true;
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}
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} break;
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case clang::Type::ObjCObject:
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case clang::Type::ObjCInterface: {
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const clang::ObjCObjectType *objc_class_type =
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llvm::dyn_cast<clang::ObjCObjectType>(qual_type);
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if (objc_class_type) {
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clang::ObjCInterfaceDecl *class_interface_decl =
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objc_class_type->getInterface();
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// We currently can't complete objective C types through the newly added
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// ASTContext because it only supports TagDecl objects right now...
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if (class_interface_decl) {
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if (ResolveDeclOrigin(class_interface_decl, NULL, NULL))
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return true;
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}
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}
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} break;
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case clang::Type::Typedef:
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return CanImport(CompilerType(type.GetTypeSystem(),
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llvm::cast<clang::TypedefType>(qual_type)
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->getDecl()
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->getUnderlyingType()
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.getAsOpaquePtr()));
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case clang::Type::Auto:
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return CanImport(CompilerType(type.GetTypeSystem(),
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llvm::cast<clang::AutoType>(qual_type)
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->getDeducedType()
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.getAsOpaquePtr()));
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case clang::Type::Elaborated:
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return CanImport(CompilerType(type.GetTypeSystem(),
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llvm::cast<clang::ElaboratedType>(qual_type)
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->getNamedType()
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.getAsOpaquePtr()));
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case clang::Type::Paren:
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return CanImport(CompilerType(
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type.GetTypeSystem(),
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llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()));
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default:
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break;
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}
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return false;
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}
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bool ClangASTImporter::Import(const CompilerType &type) {
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if (!ClangUtil::IsClangType(type))
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return false;
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// TODO: remove external completion BOOL
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// CompleteAndFetchChildren should get the Decl out and check for the
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clang::QualType qual_type(
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ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type)));
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const clang::Type::TypeClass type_class = qual_type->getTypeClass();
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switch (type_class) {
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case clang::Type::Record: {
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const clang::CXXRecordDecl *cxx_record_decl =
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qual_type->getAsCXXRecordDecl();
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if (cxx_record_decl) {
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if (ResolveDeclOrigin(cxx_record_decl, NULL, NULL))
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return CompleteAndFetchChildren(qual_type);
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}
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} break;
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case clang::Type::Enum: {
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clang::EnumDecl *enum_decl =
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llvm::cast<clang::EnumType>(qual_type)->getDecl();
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if (enum_decl) {
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if (ResolveDeclOrigin(enum_decl, NULL, NULL))
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return CompleteAndFetchChildren(qual_type);
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}
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} break;
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case clang::Type::ObjCObject:
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case clang::Type::ObjCInterface: {
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const clang::ObjCObjectType *objc_class_type =
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llvm::dyn_cast<clang::ObjCObjectType>(qual_type);
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if (objc_class_type) {
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clang::ObjCInterfaceDecl *class_interface_decl =
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objc_class_type->getInterface();
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// We currently can't complete objective C types through the newly added
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// ASTContext because it only supports TagDecl objects right now...
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if (class_interface_decl) {
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if (ResolveDeclOrigin(class_interface_decl, NULL, NULL))
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return CompleteAndFetchChildren(qual_type);
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}
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}
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} break;
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case clang::Type::Typedef:
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return Import(CompilerType(type.GetTypeSystem(),
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llvm::cast<clang::TypedefType>(qual_type)
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->getDecl()
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->getUnderlyingType()
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.getAsOpaquePtr()));
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case clang::Type::Auto:
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return Import(CompilerType(type.GetTypeSystem(),
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llvm::cast<clang::AutoType>(qual_type)
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->getDeducedType()
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.getAsOpaquePtr()));
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case clang::Type::Elaborated:
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return Import(CompilerType(type.GetTypeSystem(),
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llvm::cast<clang::ElaboratedType>(qual_type)
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->getNamedType()
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.getAsOpaquePtr()));
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case clang::Type::Paren:
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return Import(CompilerType(
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type.GetTypeSystem(),
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llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()));
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default:
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break;
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}
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return false;
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}
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bool ClangASTImporter::CompleteType(const CompilerType &compiler_type) {
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if (!CanImport(compiler_type))
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return false;
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if (Import(compiler_type)) {
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ClangASTContext::CompleteTagDeclarationDefinition(compiler_type);
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return true;
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}
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ClangASTContext::SetHasExternalStorage(compiler_type.GetOpaqueQualType(),
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false);
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return false;
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|
}
|
|
|
|
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;
|
|
|
|
ImporterDelegateSP delegate_sp(
|
|
GetDelegate(&decl->getASTContext(), decl_origin.ctx));
|
|
|
|
ASTImporterDelegate::CxxModuleScope std_scope(*delegate_sp,
|
|
&decl->getASTContext());
|
|
if (delegate_sp)
|
|
delegate_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;
|
|
|
|
ImporterDelegateSP delegate_sp(
|
|
GetDelegate(&decl->getASTContext(), origin_ast_ctx));
|
|
|
|
if (delegate_sp)
|
|
delegate_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;
|
|
|
|
ImporterDelegateSP delegate_sp(
|
|
GetDelegate(&interface_decl->getASTContext(), decl_origin.ctx));
|
|
|
|
if (delegate_sp)
|
|
delegate_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;
|
|
|
|
ImporterDelegateSP delegate_sp(
|
|
GetDelegate(&tag_decl->getASTContext(), decl_origin.ctx));
|
|
|
|
ASTImporterDelegate::CxxModuleScope std_scope(*delegate_sp,
|
|
&tag_decl->getASTContext());
|
|
|
|
TagDecl *origin_tag_decl = llvm::dyn_cast<TagDecl>(decl_origin.decl);
|
|
|
|
for (Decl *origin_child_decl : origin_tag_decl->decls()) {
|
|
delegate_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;
|
|
|
|
ImporterDelegateSP delegate_sp(
|
|
GetDelegate(&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()) {
|
|
delegate_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 = std::make_shared<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_delegates.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; }
|
|
|
|
llvm::Expected<Decl *>
|
|
ClangASTImporter::ASTImporterDelegate::ImportImpl(Decl *From) {
|
|
if (m_std_handler) {
|
|
llvm::Optional<Decl *> D = m_std_handler->Import(From);
|
|
if (D) {
|
|
// Make sure we don't use this decl later to map it back to it's original
|
|
// decl. The decl the CxxModuleHandler created has nothing to do with
|
|
// the one from debug info, and linking those two would just cause the
|
|
// ASTImporter to try 'updating' the module decl with the minimal one from
|
|
// the debug info.
|
|
m_decls_to_ignore.insert(*D);
|
|
return *D;
|
|
}
|
|
}
|
|
|
|
return ASTImporter::ImportImpl(From);
|
|
}
|
|
|
|
void ClangASTImporter::ASTImporterDelegate::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::ASTImporterDelegate::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::ASTImporterDelegate::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);
|
|
}
|
|
}
|
|
|
|
void ClangASTImporter::ASTImporterDelegate::Imported(clang::Decl *from,
|
|
clang::Decl *to) {
|
|
ClangASTMetrics::RegisterClangImport();
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
// Some decls shouldn't be tracked here because they were not created by
|
|
// copying 'from' to 'to'. Just exit early for those.
|
|
if (m_decls_to_ignore.find(to) != m_decls_to_ignore.end())
|
|
return clang::ASTImporter::Imported(from, to);
|
|
|
|
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;
|
|
}
|
|
|
|
ImporterDelegateSP direct_completer =
|
|
m_master.GetDelegate(&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()) {
|
|
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->getPrimaryContext()->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" : ""));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
clang::Decl *
|
|
ClangASTImporter::ASTImporterDelegate::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);
|
|
}
|