e657a1eb23
Summary: We have a lot of code in our lookup code to pass around `current_id` counters which end up in our logs like this: ``` AOCTV::FT [234] Found XYZ ``` This patch removes all of this code because: * I'm splitting up all humongous functions, so I need to write more and more boilerplate to pass around these ids. * I never saw any similar counters in the LLDB/LLVM code base. * They're essentially globals and the last thing we need in LLDB is even more global state. * They're not really useful when readings logs. It doesn't help that there isn't just 1 or 2 counters, but 12 (!) unique counters. I always thought that if I see two identical counter values in those brackets it's the same lookup request, but it seems that's only true by accident (and you can't know which of the 12 counters is actually printed without reading the code). The only time I know I can trust the counters is when it's obvious from the log that it's the same counter like in the log below, but then why have the counters in the first place? ``` LayoutRecordType[28] on (ASTContext*)0x00007FFA1C840200 'scratch ASTContext' for (RecordDecl*)0x00007FFA0AAE8CF0 [name = '__tree'] LRT[28] returned: LRT[28] Original = (RecordDecl*)%p LRT[28] Size = %lld LRT[28] Alignment = %lld LRT[28] Fields: LRT[28] (FieldDecl*)0x00007FFA1A13B1D0, Name = '__begin_node_', Offset = 0 bits LRT[28] (FieldDecl*)0x00007FFA1C08FD30, Name = '__pair1_', Offset = 64 bits LRT[28] (FieldDecl*)0x00007FFA1C061210, Name = '__pair3_', Offset = 128 bits LRT[28] Bases: ``` Reviewers: labath, shafik, JDevlieghere Reviewed By: labath, shafik, JDevlieghere Subscribers: abidh, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D74951
1934 lines
62 KiB
C++
1934 lines
62 KiB
C++
//===-- ClangASTSource.cpp ------------------------------------------------===//
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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 "ClangASTSource.h"
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#include "ClangDeclVendor.h"
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#include "ClangModulesDeclVendor.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/ModuleList.h"
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#include "lldb/Symbol/CompilerDeclContext.h"
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#include "lldb/Symbol/Function.h"
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#include "lldb/Symbol/SymbolFile.h"
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#include "lldb/Symbol/TaggedASTType.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Utility/Log.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/RecordLayout.h"
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#include "Plugins/ExpressionParser/Clang/ClangUtil.h"
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#include "Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.h"
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#include "Plugins/TypeSystem/Clang/TypeSystemClang.h"
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#include <memory>
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#include <vector>
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using namespace clang;
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using namespace lldb_private;
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// Scoped class that will remove an active lexical decl from the set when it
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// goes out of scope.
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namespace {
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class ScopedLexicalDeclEraser {
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public:
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ScopedLexicalDeclEraser(std::set<const clang::Decl *> &decls,
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const clang::Decl *decl)
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: m_active_lexical_decls(decls), m_decl(decl) {}
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~ScopedLexicalDeclEraser() { m_active_lexical_decls.erase(m_decl); }
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private:
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std::set<const clang::Decl *> &m_active_lexical_decls;
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const clang::Decl *m_decl;
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};
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}
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ClangASTSource::ClangASTSource(
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const lldb::TargetSP &target,
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const std::shared_ptr<ClangASTImporter> &importer)
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: m_import_in_progress(false), m_lookups_enabled(false), m_target(target),
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m_ast_context(nullptr), m_ast_importer_sp(importer),
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m_active_lexical_decls(), m_active_lookups() {
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assert(m_ast_importer_sp && "No ClangASTImporter passed to ClangASTSource?");
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}
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void ClangASTSource::InstallASTContext(TypeSystemClang &clang_ast_context) {
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m_ast_context = &clang_ast_context.getASTContext();
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m_clang_ast_context = &clang_ast_context;
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m_file_manager = &m_ast_context->getSourceManager().getFileManager();
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m_ast_importer_sp->InstallMapCompleter(m_ast_context, *this);
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}
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ClangASTSource::~ClangASTSource() {
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m_ast_importer_sp->ForgetDestination(m_ast_context);
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if (!m_target)
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return;
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// We are in the process of destruction, don't create clang ast context on
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// demand by passing false to
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// Target::GetScratchTypeSystemClang(create_on_demand).
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TypeSystemClang *scratch_clang_ast_context =
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TypeSystemClang::GetScratch(*m_target, false);
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if (!scratch_clang_ast_context)
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return;
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clang::ASTContext &scratch_ast_context =
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scratch_clang_ast_context->getASTContext();
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if (m_ast_context != &scratch_ast_context && m_ast_importer_sp)
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m_ast_importer_sp->ForgetSource(&scratch_ast_context, m_ast_context);
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}
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void ClangASTSource::StartTranslationUnit(ASTConsumer *Consumer) {
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if (!m_ast_context)
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return;
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m_ast_context->getTranslationUnitDecl()->setHasExternalVisibleStorage();
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m_ast_context->getTranslationUnitDecl()->setHasExternalLexicalStorage();
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}
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// The core lookup interface.
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bool ClangASTSource::FindExternalVisibleDeclsByName(
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const DeclContext *decl_ctx, DeclarationName clang_decl_name) {
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if (!m_ast_context) {
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SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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return false;
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}
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if (GetImportInProgress()) {
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SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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return false;
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}
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std::string decl_name(clang_decl_name.getAsString());
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// if (m_decl_map.DoingASTImport ())
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// return DeclContext::lookup_result();
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//
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switch (clang_decl_name.getNameKind()) {
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// Normal identifiers.
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case DeclarationName::Identifier: {
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clang::IdentifierInfo *identifier_info =
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clang_decl_name.getAsIdentifierInfo();
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if (!identifier_info || identifier_info->getBuiltinID() != 0) {
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SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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return false;
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}
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} break;
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// Operator names.
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case DeclarationName::CXXOperatorName:
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case DeclarationName::CXXLiteralOperatorName:
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break;
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// Using directives found in this context.
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// Tell Sema we didn't find any or we'll end up getting asked a *lot*.
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case DeclarationName::CXXUsingDirective:
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SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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return false;
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case DeclarationName::ObjCZeroArgSelector:
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case DeclarationName::ObjCOneArgSelector:
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case DeclarationName::ObjCMultiArgSelector: {
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llvm::SmallVector<NamedDecl *, 1> method_decls;
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NameSearchContext method_search_context(*this, method_decls,
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clang_decl_name, decl_ctx);
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FindObjCMethodDecls(method_search_context);
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SetExternalVisibleDeclsForName(decl_ctx, clang_decl_name, method_decls);
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return (method_decls.size() > 0);
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}
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// These aren't possible in the global context.
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case DeclarationName::CXXConstructorName:
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case DeclarationName::CXXDestructorName:
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case DeclarationName::CXXConversionFunctionName:
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case DeclarationName::CXXDeductionGuideName:
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SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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return false;
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}
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if (!GetLookupsEnabled()) {
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// Wait until we see a '$' at the start of a name before we start doing any
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// lookups so we can avoid lookup up all of the builtin types.
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if (!decl_name.empty() && decl_name[0] == '$') {
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SetLookupsEnabled(true);
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} else {
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SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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return false;
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}
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}
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ConstString const_decl_name(decl_name.c_str());
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const char *uniqued_const_decl_name = const_decl_name.GetCString();
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if (m_active_lookups.find(uniqued_const_decl_name) !=
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m_active_lookups.end()) {
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// We are currently looking up this name...
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SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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return false;
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}
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m_active_lookups.insert(uniqued_const_decl_name);
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// static uint32_t g_depth = 0;
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// ++g_depth;
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// printf("[%5u] FindExternalVisibleDeclsByName() \"%s\"\n", g_depth,
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// uniqued_const_decl_name);
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llvm::SmallVector<NamedDecl *, 4> name_decls;
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NameSearchContext name_search_context(*this, name_decls, clang_decl_name,
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decl_ctx);
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FindExternalVisibleDecls(name_search_context);
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SetExternalVisibleDeclsForName(decl_ctx, clang_decl_name, name_decls);
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// --g_depth;
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m_active_lookups.erase(uniqued_const_decl_name);
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return (name_decls.size() != 0);
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}
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void ClangASTSource::CompleteType(TagDecl *tag_decl) {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
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if (log) {
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LLDB_LOG(log,
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" CompleteTagDecl on (ASTContext*){1} Completing "
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"(TagDecl*){2} named {3}",
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m_clang_ast_context->getDisplayName(), tag_decl,
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tag_decl->getName());
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LLDB_LOG(log, " CTD Before:\n{0}", ClangUtil::DumpDecl(tag_decl));
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}
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auto iter = m_active_lexical_decls.find(tag_decl);
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if (iter != m_active_lexical_decls.end())
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return;
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m_active_lexical_decls.insert(tag_decl);
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ScopedLexicalDeclEraser eraser(m_active_lexical_decls, tag_decl);
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if (!m_ast_importer_sp->CompleteTagDecl(tag_decl)) {
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// We couldn't complete the type. Maybe there's a definition somewhere
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// else that can be completed.
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LLDB_LOG(log, " CTD Type could not be completed in the module in "
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"which it was first found.");
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bool found = false;
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DeclContext *decl_ctx = tag_decl->getDeclContext();
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if (const NamespaceDecl *namespace_context =
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dyn_cast<NamespaceDecl>(decl_ctx)) {
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ClangASTImporter::NamespaceMapSP namespace_map =
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m_ast_importer_sp->GetNamespaceMap(namespace_context);
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if (log && log->GetVerbose())
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LLDB_LOG(log, " CTD Inspecting namespace map{1} ({2} entries)",
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namespace_map.get(), namespace_map->size());
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if (!namespace_map)
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return;
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for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(),
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e = namespace_map->end();
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i != e && !found; ++i) {
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LLDB_LOG(log, " CTD Searching namespace {1} in module {2}",
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i->second.GetName(), i->first->GetFileSpec().GetFilename());
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TypeList types;
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ConstString name(tag_decl->getName().str().c_str());
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i->first->FindTypesInNamespace(name, i->second, UINT32_MAX, types);
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for (uint32_t ti = 0, te = types.GetSize(); ti != te && !found; ++ti) {
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lldb::TypeSP type = types.GetTypeAtIndex(ti);
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if (!type)
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continue;
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CompilerType clang_type(type->GetFullCompilerType());
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if (!ClangUtil::IsClangType(clang_type))
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continue;
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const TagType *tag_type =
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ClangUtil::GetQualType(clang_type)->getAs<TagType>();
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if (!tag_type)
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continue;
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TagDecl *candidate_tag_decl =
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const_cast<TagDecl *>(tag_type->getDecl());
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if (m_ast_importer_sp->CompleteTagDeclWithOrigin(tag_decl,
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candidate_tag_decl))
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found = true;
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}
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}
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} else {
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TypeList types;
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ConstString name(tag_decl->getName().str().c_str());
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const ModuleList &module_list = m_target->GetImages();
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bool exact_match = false;
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llvm::DenseSet<SymbolFile *> searched_symbol_files;
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module_list.FindTypes(nullptr, name, exact_match, UINT32_MAX,
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searched_symbol_files, types);
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for (uint32_t ti = 0, te = types.GetSize(); ti != te && !found; ++ti) {
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lldb::TypeSP type = types.GetTypeAtIndex(ti);
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if (!type)
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continue;
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CompilerType clang_type(type->GetFullCompilerType());
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if (!ClangUtil::IsClangType(clang_type))
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continue;
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const TagType *tag_type =
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ClangUtil::GetQualType(clang_type)->getAs<TagType>();
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if (!tag_type)
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continue;
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TagDecl *candidate_tag_decl =
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const_cast<TagDecl *>(tag_type->getDecl());
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// We have found a type by basename and we need to make sure the decl
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// contexts are the same before we can try to complete this type with
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// another
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if (!TypeSystemClang::DeclsAreEquivalent(tag_decl, candidate_tag_decl))
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continue;
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if (m_ast_importer_sp->CompleteTagDeclWithOrigin(tag_decl,
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candidate_tag_decl))
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found = true;
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}
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}
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}
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LLDB_LOG(log, " [CTD] After:\n{0}", ClangUtil::DumpDecl(tag_decl));
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}
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void ClangASTSource::CompleteType(clang::ObjCInterfaceDecl *interface_decl) {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
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LLDB_LOG(log,
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" [CompleteObjCInterfaceDecl] on (ASTContext*){0} '{1}' "
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"Completing an ObjCInterfaceDecl named {1}",
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m_ast_context, m_clang_ast_context->getDisplayName(),
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interface_decl->getName());
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LLDB_LOG(log, " [COID] Before:\n{0}",
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ClangUtil::DumpDecl(interface_decl));
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ClangASTImporter::DeclOrigin original = m_ast_importer_sp->GetDeclOrigin(interface_decl);
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if (original.Valid()) {
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if (ObjCInterfaceDecl *original_iface_decl =
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dyn_cast<ObjCInterfaceDecl>(original.decl)) {
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ObjCInterfaceDecl *complete_iface_decl =
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GetCompleteObjCInterface(original_iface_decl);
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if (complete_iface_decl && (complete_iface_decl != original_iface_decl)) {
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m_ast_importer_sp->SetDeclOrigin(interface_decl, complete_iface_decl);
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}
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}
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}
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m_ast_importer_sp->CompleteObjCInterfaceDecl(interface_decl);
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if (interface_decl->getSuperClass() &&
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interface_decl->getSuperClass() != interface_decl)
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CompleteType(interface_decl->getSuperClass());
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if (log) {
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LLDB_LOG(log, " [COID] After:");
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LLDB_LOG(log, " [COID] {0}", ClangUtil::DumpDecl(interface_decl));
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}
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}
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clang::ObjCInterfaceDecl *ClangASTSource::GetCompleteObjCInterface(
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const clang::ObjCInterfaceDecl *interface_decl) {
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lldb::ProcessSP process(m_target->GetProcessSP());
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if (!process)
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return nullptr;
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ObjCLanguageRuntime *language_runtime(ObjCLanguageRuntime::Get(*process));
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if (!language_runtime)
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return nullptr;
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ConstString class_name(interface_decl->getNameAsString().c_str());
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lldb::TypeSP complete_type_sp(
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language_runtime->LookupInCompleteClassCache(class_name));
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if (!complete_type_sp)
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return nullptr;
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TypeFromUser complete_type =
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TypeFromUser(complete_type_sp->GetFullCompilerType());
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lldb::opaque_compiler_type_t complete_opaque_type =
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complete_type.GetOpaqueQualType();
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if (!complete_opaque_type)
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return nullptr;
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const clang::Type *complete_clang_type =
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QualType::getFromOpaquePtr(complete_opaque_type).getTypePtr();
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const ObjCInterfaceType *complete_interface_type =
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dyn_cast<ObjCInterfaceType>(complete_clang_type);
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if (!complete_interface_type)
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return nullptr;
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ObjCInterfaceDecl *complete_iface_decl(complete_interface_type->getDecl());
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return complete_iface_decl;
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}
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void ClangASTSource::FindExternalLexicalDecls(
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const DeclContext *decl_context,
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llvm::function_ref<bool(Decl::Kind)> predicate,
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llvm::SmallVectorImpl<Decl *> &decls) {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
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const Decl *context_decl = dyn_cast<Decl>(decl_context);
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if (!context_decl)
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return;
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auto iter = m_active_lexical_decls.find(context_decl);
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if (iter != m_active_lexical_decls.end())
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return;
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m_active_lexical_decls.insert(context_decl);
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ScopedLexicalDeclEraser eraser(m_active_lexical_decls, context_decl);
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if (log) {
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if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context_decl))
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LLDB_LOG(log,
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"FindExternalLexicalDecls on (ASTContext*){1} '{2}' in "
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"'{3}' (%sDecl*){4}",
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m_ast_context, m_clang_ast_context->getDisplayName(),
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context_named_decl->getNameAsString().c_str(),
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context_decl->getDeclKindName(),
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static_cast<const void *>(context_decl));
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else if (context_decl)
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LLDB_LOG(log,
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"FindExternalLexicalDecls on (ASTContext*){1} '{2}' in "
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"({3}Decl*){4}",
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m_ast_context, m_clang_ast_context->getDisplayName(),
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context_decl->getDeclKindName(),
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static_cast<const void *>(context_decl));
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else
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LLDB_LOG(log,
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"FindExternalLexicalDecls on (ASTContext*){1} '{2}' in a "
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"NULL context",
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m_ast_context, m_clang_ast_context->getDisplayName());
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}
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ClangASTImporter::DeclOrigin original = m_ast_importer_sp->GetDeclOrigin(context_decl);
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if (!original.Valid())
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return;
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LLDB_LOG(log, " FELD Original decl {1} (Decl*){2:x}:\n{3}",
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static_cast<void *>(original.ctx),
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static_cast<void *>(original.decl),
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ClangUtil::DumpDecl(original.decl));
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if (ObjCInterfaceDecl *original_iface_decl =
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dyn_cast<ObjCInterfaceDecl>(original.decl)) {
|
|
ObjCInterfaceDecl *complete_iface_decl =
|
|
GetCompleteObjCInterface(original_iface_decl);
|
|
|
|
if (complete_iface_decl && (complete_iface_decl != original_iface_decl)) {
|
|
original.decl = complete_iface_decl;
|
|
original.ctx = &complete_iface_decl->getASTContext();
|
|
|
|
m_ast_importer_sp->SetDeclOrigin(context_decl, complete_iface_decl);
|
|
}
|
|
}
|
|
|
|
if (TagDecl *original_tag_decl = dyn_cast<TagDecl>(original.decl)) {
|
|
ExternalASTSource *external_source = original.ctx->getExternalSource();
|
|
|
|
if (external_source)
|
|
external_source->CompleteType(original_tag_decl);
|
|
}
|
|
|
|
const DeclContext *original_decl_context =
|
|
dyn_cast<DeclContext>(original.decl);
|
|
|
|
if (!original_decl_context)
|
|
return;
|
|
|
|
// Indicates whether we skipped any Decls of the original DeclContext.
|
|
bool SkippedDecls = false;
|
|
for (DeclContext::decl_iterator iter = original_decl_context->decls_begin();
|
|
iter != original_decl_context->decls_end(); ++iter) {
|
|
Decl *decl = *iter;
|
|
|
|
// The predicate function returns true if the passed declaration kind is
|
|
// the one we are looking for.
|
|
// See clang::ExternalASTSource::FindExternalLexicalDecls()
|
|
if (predicate(decl->getKind())) {
|
|
if (log) {
|
|
std::string ast_dump = ClangUtil::DumpDecl(decl);
|
|
if (const NamedDecl *context_named_decl =
|
|
dyn_cast<NamedDecl>(context_decl))
|
|
LLDB_LOG(log, " FELD Adding [to {1}Decl {2}] lexical {3}Decl {4}",
|
|
context_named_decl->getDeclKindName(),
|
|
context_named_decl->getName(), decl->getDeclKindName(),
|
|
ast_dump);
|
|
else
|
|
LLDB_LOG(log, " FELD Adding lexical {1}Decl {2}",
|
|
decl->getDeclKindName(), ast_dump);
|
|
}
|
|
|
|
Decl *copied_decl = CopyDecl(decl);
|
|
|
|
if (!copied_decl)
|
|
continue;
|
|
|
|
if (FieldDecl *copied_field = dyn_cast<FieldDecl>(copied_decl)) {
|
|
QualType copied_field_type = copied_field->getType();
|
|
|
|
m_ast_importer_sp->RequireCompleteType(copied_field_type);
|
|
}
|
|
} else {
|
|
SkippedDecls = true;
|
|
}
|
|
}
|
|
|
|
// CopyDecl may build a lookup table which may set up ExternalLexicalStorage
|
|
// to false. However, since we skipped some of the external Decls we must
|
|
// set it back!
|
|
if (SkippedDecls) {
|
|
decl_context->setHasExternalLexicalStorage(true);
|
|
// This sets HasLazyExternalLexicalLookups to true. By setting this bit we
|
|
// ensure that the lookup table is rebuilt, which means the external source
|
|
// is consulted again when a clang::DeclContext::lookup is called.
|
|
const_cast<DeclContext *>(decl_context)->setMustBuildLookupTable();
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
void ClangASTSource::FindExternalVisibleDecls(NameSearchContext &context) {
|
|
assert(m_ast_context);
|
|
|
|
const ConstString name(context.m_decl_name.getAsString().c_str());
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
if (log) {
|
|
if (!context.m_decl_context)
|
|
LLDB_LOG(log,
|
|
"ClangASTSource::FindExternalVisibleDecls on "
|
|
"(ASTContext*){1} '{2}' for '{3}' in a NULL DeclContext",
|
|
m_ast_context, m_clang_ast_context->getDisplayName(), name);
|
|
else if (const NamedDecl *context_named_decl =
|
|
dyn_cast<NamedDecl>(context.m_decl_context))
|
|
LLDB_LOG(log,
|
|
"ClangASTSource::FindExternalVisibleDecls on "
|
|
"(ASTContext*){1} '{2}' for '{3}' in '{4}'",
|
|
m_ast_context, m_clang_ast_context->getDisplayName(), name,
|
|
context_named_decl->getName());
|
|
else
|
|
LLDB_LOG(log,
|
|
"ClangASTSource::FindExternalVisibleDecls on "
|
|
"(ASTContext*){1} '{2}' for '{3}' in a '{4}'",
|
|
m_ast_context, m_clang_ast_context->getDisplayName(), name,
|
|
context.m_decl_context->getDeclKindName());
|
|
}
|
|
|
|
context.m_namespace_map = std::make_shared<ClangASTImporter::NamespaceMap>();
|
|
|
|
if (const NamespaceDecl *namespace_context =
|
|
dyn_cast<NamespaceDecl>(context.m_decl_context)) {
|
|
ClangASTImporter::NamespaceMapSP namespace_map =
|
|
m_ast_importer_sp->GetNamespaceMap(namespace_context);
|
|
|
|
if (log && log->GetVerbose())
|
|
LLDB_LOG(log, " CAS::FEVD Inspecting namespace map {1} ({2} entries)",
|
|
namespace_map.get(), namespace_map->size());
|
|
|
|
if (!namespace_map)
|
|
return;
|
|
|
|
for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(),
|
|
e = namespace_map->end();
|
|
i != e; ++i) {
|
|
LLDB_LOG(log, " CAS::FEVD Searching namespace {1} in module {2}",
|
|
i->second.GetName(), i->first->GetFileSpec().GetFilename());
|
|
|
|
FindExternalVisibleDecls(context, i->first, i->second);
|
|
}
|
|
} else if (isa<ObjCInterfaceDecl>(context.m_decl_context)) {
|
|
FindObjCPropertyAndIvarDecls(context);
|
|
} else if (!isa<TranslationUnitDecl>(context.m_decl_context)) {
|
|
// we shouldn't be getting FindExternalVisibleDecls calls for these
|
|
return;
|
|
} else {
|
|
CompilerDeclContext namespace_decl;
|
|
|
|
LLDB_LOG(log, " CAS::FEVD Searching the root namespace");
|
|
|
|
FindExternalVisibleDecls(context, lldb::ModuleSP(), namespace_decl);
|
|
}
|
|
|
|
if (!context.m_namespace_map->empty()) {
|
|
if (log && log->GetVerbose())
|
|
LLDB_LOG(log, " CAS::FEVD Registering namespace map {1} ({2} entries)",
|
|
context.m_namespace_map.get(), context.m_namespace_map->size());
|
|
|
|
NamespaceDecl *clang_namespace_decl =
|
|
AddNamespace(context, context.m_namespace_map);
|
|
|
|
if (clang_namespace_decl)
|
|
clang_namespace_decl->setHasExternalVisibleStorage();
|
|
}
|
|
}
|
|
|
|
clang::Sema *ClangASTSource::getSema() {
|
|
return m_clang_ast_context->getSema();
|
|
}
|
|
|
|
bool ClangASTSource::IgnoreName(const ConstString name,
|
|
bool ignore_all_dollar_names) {
|
|
static const ConstString id_name("id");
|
|
static const ConstString Class_name("Class");
|
|
|
|
if (m_ast_context->getLangOpts().ObjC)
|
|
if (name == id_name || name == Class_name)
|
|
return true;
|
|
|
|
StringRef name_string_ref = name.GetStringRef();
|
|
|
|
// The ClangASTSource is not responsible for finding $-names.
|
|
return name_string_ref.empty() ||
|
|
(ignore_all_dollar_names && name_string_ref.startswith("$")) ||
|
|
name_string_ref.startswith("_$");
|
|
}
|
|
|
|
void ClangASTSource::FindExternalVisibleDecls(
|
|
NameSearchContext &context, lldb::ModuleSP module_sp,
|
|
CompilerDeclContext &namespace_decl) {
|
|
assert(m_ast_context);
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
SymbolContextList sc_list;
|
|
|
|
const ConstString name(context.m_decl_name.getAsString().c_str());
|
|
if (IgnoreName(name, true))
|
|
return;
|
|
|
|
if (!m_target)
|
|
return;
|
|
|
|
if (module_sp && namespace_decl) {
|
|
CompilerDeclContext found_namespace_decl;
|
|
|
|
if (SymbolFile *symbol_file = module_sp->GetSymbolFile()) {
|
|
found_namespace_decl = symbol_file->FindNamespace(name, namespace_decl);
|
|
|
|
if (found_namespace_decl) {
|
|
context.m_namespace_map->push_back(
|
|
std::pair<lldb::ModuleSP, CompilerDeclContext>(
|
|
module_sp, found_namespace_decl));
|
|
|
|
LLDB_LOG(log, " CAS::FEVD Found namespace {1} in module {2}", name,
|
|
module_sp->GetFileSpec().GetFilename());
|
|
}
|
|
}
|
|
} else {
|
|
const ModuleList &target_images = m_target->GetImages();
|
|
std::lock_guard<std::recursive_mutex> guard(target_images.GetMutex());
|
|
|
|
for (size_t i = 0, e = target_images.GetSize(); i < e; ++i) {
|
|
lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i);
|
|
|
|
if (!image)
|
|
continue;
|
|
|
|
CompilerDeclContext found_namespace_decl;
|
|
|
|
SymbolFile *symbol_file = image->GetSymbolFile();
|
|
|
|
if (!symbol_file)
|
|
continue;
|
|
|
|
found_namespace_decl = symbol_file->FindNamespace(name, namespace_decl);
|
|
|
|
if (found_namespace_decl) {
|
|
context.m_namespace_map->push_back(
|
|
std::pair<lldb::ModuleSP, CompilerDeclContext>(
|
|
image, found_namespace_decl));
|
|
|
|
LLDB_LOG(log, " CAS::FEVD Found namespace {1} in module {2}", name,
|
|
image->GetFileSpec().GetFilename());
|
|
}
|
|
}
|
|
}
|
|
|
|
if (context.m_found.type)
|
|
return;
|
|
|
|
TypeList types;
|
|
const bool exact_match = true;
|
|
llvm::DenseSet<lldb_private::SymbolFile *> searched_symbol_files;
|
|
if (module_sp && namespace_decl)
|
|
module_sp->FindTypesInNamespace(name, namespace_decl, 1, types);
|
|
else {
|
|
m_target->GetImages().FindTypes(module_sp.get(), name, exact_match, 1,
|
|
searched_symbol_files, types);
|
|
}
|
|
|
|
if (size_t num_types = types.GetSize()) {
|
|
for (size_t ti = 0; ti < num_types; ++ti) {
|
|
lldb::TypeSP type_sp = types.GetTypeAtIndex(ti);
|
|
|
|
if (log) {
|
|
const char *name_string = type_sp->GetName().GetCString();
|
|
|
|
LLDB_LOG(log, " CAS::FEVD Matching type found for \"{1}\": {2}", name,
|
|
(name_string ? name_string : "<anonymous>"));
|
|
}
|
|
|
|
CompilerType full_type = type_sp->GetFullCompilerType();
|
|
|
|
CompilerType copied_clang_type(GuardedCopyType(full_type));
|
|
|
|
if (!copied_clang_type) {
|
|
LLDB_LOG(log, " CAS::FEVD - Couldn't export a type");
|
|
|
|
continue;
|
|
}
|
|
|
|
context.AddTypeDecl(copied_clang_type);
|
|
|
|
context.m_found.type = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!context.m_found.type) {
|
|
// Try the modules next.
|
|
FindDeclInModules(context, name);
|
|
}
|
|
|
|
if (!context.m_found.type) {
|
|
FindDeclInObjCRuntime(context, name);
|
|
}
|
|
}
|
|
|
|
template <class D> class TaggedASTDecl {
|
|
public:
|
|
TaggedASTDecl() : decl(nullptr) {}
|
|
TaggedASTDecl(D *_decl) : decl(_decl) {}
|
|
bool IsValid() const { return (decl != nullptr); }
|
|
bool IsInvalid() const { return !IsValid(); }
|
|
D *operator->() const { return decl; }
|
|
D *decl;
|
|
};
|
|
|
|
template <class D2, template <class D> class TD, class D1>
|
|
TD<D2> DynCast(TD<D1> source) {
|
|
return TD<D2>(dyn_cast<D2>(source.decl));
|
|
}
|
|
|
|
template <class D = Decl> class DeclFromParser;
|
|
template <class D = Decl> class DeclFromUser;
|
|
|
|
template <class D> class DeclFromParser : public TaggedASTDecl<D> {
|
|
public:
|
|
DeclFromParser() : TaggedASTDecl<D>() {}
|
|
DeclFromParser(D *_decl) : TaggedASTDecl<D>(_decl) {}
|
|
|
|
DeclFromUser<D> GetOrigin(ClangASTSource &source);
|
|
};
|
|
|
|
template <class D> class DeclFromUser : public TaggedASTDecl<D> {
|
|
public:
|
|
DeclFromUser() : TaggedASTDecl<D>() {}
|
|
DeclFromUser(D *_decl) : TaggedASTDecl<D>(_decl) {}
|
|
|
|
DeclFromParser<D> Import(ClangASTSource &source);
|
|
};
|
|
|
|
template <class D>
|
|
DeclFromUser<D> DeclFromParser<D>::GetOrigin(ClangASTSource &source) {
|
|
ClangASTImporter::DeclOrigin origin = source.GetDeclOrigin(this->decl);
|
|
if (!origin.Valid())
|
|
return DeclFromUser<D>();
|
|
return DeclFromUser<D>(dyn_cast<D>(origin.decl));
|
|
}
|
|
|
|
template <class D>
|
|
DeclFromParser<D> DeclFromUser<D>::Import(ClangASTSource &source) {
|
|
DeclFromParser<> parser_generic_decl(source.CopyDecl(this->decl));
|
|
if (parser_generic_decl.IsInvalid())
|
|
return DeclFromParser<D>();
|
|
return DeclFromParser<D>(dyn_cast<D>(parser_generic_decl.decl));
|
|
}
|
|
|
|
bool ClangASTSource::FindObjCMethodDeclsWithOrigin(
|
|
NameSearchContext &context, ObjCInterfaceDecl *original_interface_decl,
|
|
const char *log_info) {
|
|
const DeclarationName &decl_name(context.m_decl_name);
|
|
clang::ASTContext *original_ctx = &original_interface_decl->getASTContext();
|
|
|
|
Selector original_selector;
|
|
|
|
if (decl_name.isObjCZeroArgSelector()) {
|
|
IdentifierInfo *ident = &original_ctx->Idents.get(decl_name.getAsString());
|
|
original_selector = original_ctx->Selectors.getSelector(0, &ident);
|
|
} else if (decl_name.isObjCOneArgSelector()) {
|
|
const std::string &decl_name_string = decl_name.getAsString();
|
|
std::string decl_name_string_without_colon(decl_name_string.c_str(),
|
|
decl_name_string.length() - 1);
|
|
IdentifierInfo *ident =
|
|
&original_ctx->Idents.get(decl_name_string_without_colon);
|
|
original_selector = original_ctx->Selectors.getSelector(1, &ident);
|
|
} else {
|
|
SmallVector<IdentifierInfo *, 4> idents;
|
|
|
|
clang::Selector sel = decl_name.getObjCSelector();
|
|
|
|
unsigned num_args = sel.getNumArgs();
|
|
|
|
for (unsigned i = 0; i != num_args; ++i) {
|
|
idents.push_back(&original_ctx->Idents.get(sel.getNameForSlot(i)));
|
|
}
|
|
|
|
original_selector =
|
|
original_ctx->Selectors.getSelector(num_args, idents.data());
|
|
}
|
|
|
|
DeclarationName original_decl_name(original_selector);
|
|
|
|
llvm::SmallVector<NamedDecl *, 1> methods;
|
|
|
|
TypeSystemClang::GetCompleteDecl(original_ctx, original_interface_decl);
|
|
|
|
if (ObjCMethodDecl *instance_method_decl =
|
|
original_interface_decl->lookupInstanceMethod(original_selector)) {
|
|
methods.push_back(instance_method_decl);
|
|
} else if (ObjCMethodDecl *class_method_decl =
|
|
original_interface_decl->lookupClassMethod(
|
|
original_selector)) {
|
|
methods.push_back(class_method_decl);
|
|
}
|
|
|
|
if (methods.empty()) {
|
|
return false;
|
|
}
|
|
|
|
for (NamedDecl *named_decl : methods) {
|
|
if (!named_decl)
|
|
continue;
|
|
|
|
ObjCMethodDecl *result_method = dyn_cast<ObjCMethodDecl>(named_decl);
|
|
|
|
if (!result_method)
|
|
continue;
|
|
|
|
Decl *copied_decl = CopyDecl(result_method);
|
|
|
|
if (!copied_decl)
|
|
continue;
|
|
|
|
ObjCMethodDecl *copied_method_decl = dyn_cast<ObjCMethodDecl>(copied_decl);
|
|
|
|
if (!copied_method_decl)
|
|
continue;
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
LLDB_LOG(log, " CAS::FOMD found ({1}) {2}", log_info,
|
|
ClangUtil::DumpDecl(copied_method_decl));
|
|
|
|
context.AddNamedDecl(copied_method_decl);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void ClangASTSource::FindDeclInModules(NameSearchContext &context,
|
|
ConstString name) {
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
ClangModulesDeclVendor *modules_decl_vendor =
|
|
m_target->GetClangModulesDeclVendor();
|
|
if (!modules_decl_vendor)
|
|
return;
|
|
|
|
bool append = false;
|
|
uint32_t max_matches = 1;
|
|
std::vector<clang::NamedDecl *> decls;
|
|
|
|
if (!modules_decl_vendor->FindDecls(name, append, max_matches, decls))
|
|
return;
|
|
|
|
if (log) {
|
|
LLDB_LOG(log,
|
|
" CAS::FEVD Matching entity found for \"{1}\" in "
|
|
"the modules",
|
|
name);
|
|
}
|
|
|
|
clang::NamedDecl *const decl_from_modules = decls[0];
|
|
|
|
if (llvm::isa<clang::TypeDecl>(decl_from_modules) ||
|
|
llvm::isa<clang::ObjCContainerDecl>(decl_from_modules) ||
|
|
llvm::isa<clang::EnumConstantDecl>(decl_from_modules)) {
|
|
clang::Decl *copied_decl = CopyDecl(decl_from_modules);
|
|
clang::NamedDecl *copied_named_decl =
|
|
copied_decl ? dyn_cast<clang::NamedDecl>(copied_decl) : nullptr;
|
|
|
|
if (!copied_named_decl) {
|
|
LLDB_LOG(log, " CAS::FEVD - Couldn't export a type from the modules");
|
|
|
|
return;
|
|
}
|
|
|
|
context.AddNamedDecl(copied_named_decl);
|
|
|
|
context.m_found.type = true;
|
|
}
|
|
}
|
|
|
|
void ClangASTSource::FindDeclInObjCRuntime(NameSearchContext &context,
|
|
ConstString name) {
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
lldb::ProcessSP process(m_target->GetProcessSP());
|
|
|
|
if (!process)
|
|
return;
|
|
|
|
ObjCLanguageRuntime *language_runtime(ObjCLanguageRuntime::Get(*process));
|
|
|
|
if (!language_runtime)
|
|
return;
|
|
|
|
DeclVendor *decl_vendor = language_runtime->GetDeclVendor();
|
|
|
|
if (!decl_vendor)
|
|
return;
|
|
|
|
bool append = false;
|
|
uint32_t max_matches = 1;
|
|
std::vector<clang::NamedDecl *> decls;
|
|
|
|
auto *clang_decl_vendor = llvm::cast<ClangDeclVendor>(decl_vendor);
|
|
if (!clang_decl_vendor->FindDecls(name, append, max_matches, decls))
|
|
return;
|
|
|
|
if (log) {
|
|
LLDB_LOG(log, " CAS::FEVD Matching type found for \"{0}\" in the runtime",
|
|
name);
|
|
}
|
|
|
|
clang::Decl *copied_decl = CopyDecl(decls[0]);
|
|
clang::NamedDecl *copied_named_decl =
|
|
copied_decl ? dyn_cast<clang::NamedDecl>(copied_decl) : nullptr;
|
|
|
|
if (!copied_named_decl) {
|
|
LLDB_LOG(log, " CAS::FEVD - Couldn't export a type from the runtime");
|
|
|
|
return;
|
|
}
|
|
|
|
context.AddNamedDecl(copied_named_decl);
|
|
}
|
|
|
|
void ClangASTSource::FindObjCMethodDecls(NameSearchContext &context) {
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
const DeclarationName &decl_name(context.m_decl_name);
|
|
const DeclContext *decl_ctx(context.m_decl_context);
|
|
|
|
const ObjCInterfaceDecl *interface_decl =
|
|
dyn_cast<ObjCInterfaceDecl>(decl_ctx);
|
|
|
|
if (!interface_decl)
|
|
return;
|
|
|
|
do {
|
|
ClangASTImporter::DeclOrigin original = m_ast_importer_sp->GetDeclOrigin(interface_decl);
|
|
|
|
if (!original.Valid())
|
|
break;
|
|
|
|
ObjCInterfaceDecl *original_interface_decl =
|
|
dyn_cast<ObjCInterfaceDecl>(original.decl);
|
|
|
|
if (FindObjCMethodDeclsWithOrigin(context, original_interface_decl,
|
|
"at origin"))
|
|
return; // found it, no need to look any further
|
|
} while (false);
|
|
|
|
StreamString ss;
|
|
|
|
if (decl_name.isObjCZeroArgSelector()) {
|
|
ss.Printf("%s", decl_name.getAsString().c_str());
|
|
} else if (decl_name.isObjCOneArgSelector()) {
|
|
ss.Printf("%s", decl_name.getAsString().c_str());
|
|
} else {
|
|
clang::Selector sel = decl_name.getObjCSelector();
|
|
|
|
for (unsigned i = 0, e = sel.getNumArgs(); i != e; ++i) {
|
|
llvm::StringRef r = sel.getNameForSlot(i);
|
|
ss.Printf("%s:", r.str().c_str());
|
|
}
|
|
}
|
|
ss.Flush();
|
|
|
|
if (ss.GetString().contains("$__lldb"))
|
|
return; // we don't need any results
|
|
|
|
ConstString selector_name(ss.GetString());
|
|
|
|
LLDB_LOG(log,
|
|
"ClangASTSource::FindObjCMethodDecls on (ASTContext*){1} '{2}' "
|
|
"for selector [{3} {4}]",
|
|
m_ast_context, m_clang_ast_context->getDisplayName(),
|
|
interface_decl->getName(), selector_name);
|
|
SymbolContextList sc_list;
|
|
|
|
const bool include_symbols = false;
|
|
const bool include_inlines = false;
|
|
|
|
std::string interface_name = interface_decl->getNameAsString();
|
|
|
|
do {
|
|
StreamString ms;
|
|
ms.Printf("-[%s %s]", interface_name.c_str(), selector_name.AsCString());
|
|
ms.Flush();
|
|
ConstString instance_method_name(ms.GetString());
|
|
|
|
sc_list.Clear();
|
|
m_target->GetImages().FindFunctions(
|
|
instance_method_name, lldb::eFunctionNameTypeFull, include_symbols,
|
|
include_inlines, sc_list);
|
|
|
|
if (sc_list.GetSize())
|
|
break;
|
|
|
|
ms.Clear();
|
|
ms.Printf("+[%s %s]", interface_name.c_str(), selector_name.AsCString());
|
|
ms.Flush();
|
|
ConstString class_method_name(ms.GetString());
|
|
|
|
sc_list.Clear();
|
|
m_target->GetImages().FindFunctions(
|
|
class_method_name, lldb::eFunctionNameTypeFull, include_symbols,
|
|
include_inlines, sc_list);
|
|
|
|
if (sc_list.GetSize())
|
|
break;
|
|
|
|
// Fall back and check for methods in categories. If we find methods this
|
|
// way, we need to check that they're actually in categories on the desired
|
|
// class.
|
|
|
|
SymbolContextList candidate_sc_list;
|
|
|
|
m_target->GetImages().FindFunctions(
|
|
selector_name, lldb::eFunctionNameTypeSelector, include_symbols,
|
|
include_inlines, candidate_sc_list);
|
|
|
|
for (uint32_t ci = 0, ce = candidate_sc_list.GetSize(); ci != ce; ++ci) {
|
|
SymbolContext candidate_sc;
|
|
|
|
if (!candidate_sc_list.GetContextAtIndex(ci, candidate_sc))
|
|
continue;
|
|
|
|
if (!candidate_sc.function)
|
|
continue;
|
|
|
|
const char *candidate_name = candidate_sc.function->GetName().AsCString();
|
|
|
|
const char *cursor = candidate_name;
|
|
|
|
if (*cursor != '+' && *cursor != '-')
|
|
continue;
|
|
|
|
++cursor;
|
|
|
|
if (*cursor != '[')
|
|
continue;
|
|
|
|
++cursor;
|
|
|
|
size_t interface_len = interface_name.length();
|
|
|
|
if (strncmp(cursor, interface_name.c_str(), interface_len))
|
|
continue;
|
|
|
|
cursor += interface_len;
|
|
|
|
if (*cursor == ' ' || *cursor == '(')
|
|
sc_list.Append(candidate_sc);
|
|
}
|
|
} while (false);
|
|
|
|
if (sc_list.GetSize()) {
|
|
// We found a good function symbol. Use that.
|
|
|
|
for (uint32_t i = 0, e = sc_list.GetSize(); i != e; ++i) {
|
|
SymbolContext sc;
|
|
|
|
if (!sc_list.GetContextAtIndex(i, sc))
|
|
continue;
|
|
|
|
if (!sc.function)
|
|
continue;
|
|
|
|
CompilerDeclContext function_decl_ctx = sc.function->GetDeclContext();
|
|
if (!function_decl_ctx)
|
|
continue;
|
|
|
|
ObjCMethodDecl *method_decl =
|
|
TypeSystemClang::DeclContextGetAsObjCMethodDecl(function_decl_ctx);
|
|
|
|
if (!method_decl)
|
|
continue;
|
|
|
|
ObjCInterfaceDecl *found_interface_decl =
|
|
method_decl->getClassInterface();
|
|
|
|
if (!found_interface_decl)
|
|
continue;
|
|
|
|
if (found_interface_decl->getName() == interface_decl->getName()) {
|
|
Decl *copied_decl = CopyDecl(method_decl);
|
|
|
|
if (!copied_decl)
|
|
continue;
|
|
|
|
ObjCMethodDecl *copied_method_decl =
|
|
dyn_cast<ObjCMethodDecl>(copied_decl);
|
|
|
|
if (!copied_method_decl)
|
|
continue;
|
|
|
|
LLDB_LOG(log, " CAS::FOMD found (in symbols)\n{1}",
|
|
ClangUtil::DumpDecl(copied_method_decl));
|
|
|
|
context.AddNamedDecl(copied_method_decl);
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// Try the debug information.
|
|
|
|
do {
|
|
ObjCInterfaceDecl *complete_interface_decl = GetCompleteObjCInterface(
|
|
const_cast<ObjCInterfaceDecl *>(interface_decl));
|
|
|
|
if (!complete_interface_decl)
|
|
break;
|
|
|
|
// We found the complete interface. The runtime never needs to be queried
|
|
// in this scenario.
|
|
|
|
DeclFromUser<const ObjCInterfaceDecl> complete_iface_decl(
|
|
complete_interface_decl);
|
|
|
|
if (complete_interface_decl == interface_decl)
|
|
break; // already checked this one
|
|
|
|
LLDB_LOG(log,
|
|
"CAS::FOPD trying origin "
|
|
"(ObjCInterfaceDecl*){1}/(ASTContext*){2}...",
|
|
complete_interface_decl, &complete_iface_decl->getASTContext());
|
|
|
|
FindObjCMethodDeclsWithOrigin(context, complete_interface_decl,
|
|
"in debug info");
|
|
|
|
return;
|
|
} while (false);
|
|
|
|
do {
|
|
// Check the modules only if the debug information didn't have a complete
|
|
// interface.
|
|
|
|
if (ClangModulesDeclVendor *modules_decl_vendor =
|
|
m_target->GetClangModulesDeclVendor()) {
|
|
ConstString interface_name(interface_decl->getNameAsString().c_str());
|
|
bool append = false;
|
|
uint32_t max_matches = 1;
|
|
std::vector<clang::NamedDecl *> decls;
|
|
|
|
if (!modules_decl_vendor->FindDecls(interface_name, append, max_matches,
|
|
decls))
|
|
break;
|
|
|
|
ObjCInterfaceDecl *interface_decl_from_modules =
|
|
dyn_cast<ObjCInterfaceDecl>(decls[0]);
|
|
|
|
if (!interface_decl_from_modules)
|
|
break;
|
|
|
|
if (FindObjCMethodDeclsWithOrigin(context, interface_decl_from_modules,
|
|
"in modules"))
|
|
return;
|
|
}
|
|
} while (false);
|
|
|
|
do {
|
|
// Check the runtime only if the debug information didn't have a complete
|
|
// interface and the modules don't get us anywhere.
|
|
|
|
lldb::ProcessSP process(m_target->GetProcessSP());
|
|
|
|
if (!process)
|
|
break;
|
|
|
|
ObjCLanguageRuntime *language_runtime(ObjCLanguageRuntime::Get(*process));
|
|
|
|
if (!language_runtime)
|
|
break;
|
|
|
|
DeclVendor *decl_vendor = language_runtime->GetDeclVendor();
|
|
|
|
if (!decl_vendor)
|
|
break;
|
|
|
|
ConstString interface_name(interface_decl->getNameAsString().c_str());
|
|
bool append = false;
|
|
uint32_t max_matches = 1;
|
|
std::vector<clang::NamedDecl *> decls;
|
|
|
|
auto *clang_decl_vendor = llvm::cast<ClangDeclVendor>(decl_vendor);
|
|
if (!clang_decl_vendor->FindDecls(interface_name, append, max_matches,
|
|
decls))
|
|
break;
|
|
|
|
ObjCInterfaceDecl *runtime_interface_decl =
|
|
dyn_cast<ObjCInterfaceDecl>(decls[0]);
|
|
|
|
if (!runtime_interface_decl)
|
|
break;
|
|
|
|
FindObjCMethodDeclsWithOrigin(context, runtime_interface_decl,
|
|
"in runtime");
|
|
} while (false);
|
|
}
|
|
|
|
static bool FindObjCPropertyAndIvarDeclsWithOrigin(
|
|
NameSearchContext &context, ClangASTSource &source,
|
|
DeclFromUser<const ObjCInterfaceDecl> &origin_iface_decl) {
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
if (origin_iface_decl.IsInvalid())
|
|
return false;
|
|
|
|
std::string name_str = context.m_decl_name.getAsString();
|
|
StringRef name(name_str);
|
|
IdentifierInfo &name_identifier(
|
|
origin_iface_decl->getASTContext().Idents.get(name));
|
|
|
|
DeclFromUser<ObjCPropertyDecl> origin_property_decl(
|
|
origin_iface_decl->FindPropertyDeclaration(
|
|
&name_identifier, ObjCPropertyQueryKind::OBJC_PR_query_instance));
|
|
|
|
bool found = false;
|
|
|
|
if (origin_property_decl.IsValid()) {
|
|
DeclFromParser<ObjCPropertyDecl> parser_property_decl(
|
|
origin_property_decl.Import(source));
|
|
if (parser_property_decl.IsValid()) {
|
|
LLDB_LOG(log, " CAS::FOPD found\n{1}",
|
|
ClangUtil::DumpDecl(parser_property_decl.decl));
|
|
|
|
context.AddNamedDecl(parser_property_decl.decl);
|
|
found = true;
|
|
}
|
|
}
|
|
|
|
DeclFromUser<ObjCIvarDecl> origin_ivar_decl(
|
|
origin_iface_decl->getIvarDecl(&name_identifier));
|
|
|
|
if (origin_ivar_decl.IsValid()) {
|
|
DeclFromParser<ObjCIvarDecl> parser_ivar_decl(
|
|
origin_ivar_decl.Import(source));
|
|
if (parser_ivar_decl.IsValid()) {
|
|
if (log) {
|
|
LLDB_LOG(log, " CAS::FOPD found\n{1}",
|
|
ClangUtil::DumpDecl(parser_ivar_decl.decl));
|
|
}
|
|
|
|
context.AddNamedDecl(parser_ivar_decl.decl);
|
|
found = true;
|
|
}
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
void ClangASTSource::FindObjCPropertyAndIvarDecls(NameSearchContext &context) {
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
DeclFromParser<const ObjCInterfaceDecl> parser_iface_decl(
|
|
cast<ObjCInterfaceDecl>(context.m_decl_context));
|
|
DeclFromUser<const ObjCInterfaceDecl> origin_iface_decl(
|
|
parser_iface_decl.GetOrigin(*this));
|
|
|
|
ConstString class_name(parser_iface_decl->getNameAsString().c_str());
|
|
|
|
LLDB_LOG(log,
|
|
"ClangASTSource::FindObjCPropertyAndIvarDecls on "
|
|
"(ASTContext*){1} '{2}' for '{3}.{4}'",
|
|
m_ast_context, m_clang_ast_context->getDisplayName(),
|
|
parser_iface_decl->getName(), context.m_decl_name.getAsString());
|
|
|
|
if (FindObjCPropertyAndIvarDeclsWithOrigin(context, *this, origin_iface_decl))
|
|
return;
|
|
|
|
LLDB_LOG(log,
|
|
"CAS::FOPD couldn't find the property on origin "
|
|
"(ObjCInterfaceDecl*){1}/(ASTContext*){2}, searching "
|
|
"elsewhere...",
|
|
origin_iface_decl.decl, &origin_iface_decl->getASTContext());
|
|
|
|
SymbolContext null_sc;
|
|
TypeList type_list;
|
|
|
|
do {
|
|
ObjCInterfaceDecl *complete_interface_decl = GetCompleteObjCInterface(
|
|
const_cast<ObjCInterfaceDecl *>(parser_iface_decl.decl));
|
|
|
|
if (!complete_interface_decl)
|
|
break;
|
|
|
|
// We found the complete interface. The runtime never needs to be queried
|
|
// in this scenario.
|
|
|
|
DeclFromUser<const ObjCInterfaceDecl> complete_iface_decl(
|
|
complete_interface_decl);
|
|
|
|
if (complete_iface_decl.decl == origin_iface_decl.decl)
|
|
break; // already checked this one
|
|
|
|
LLDB_LOG(log,
|
|
"CAS::FOPD trying origin "
|
|
"(ObjCInterfaceDecl*){1}/(ASTContext*){2}...",
|
|
complete_iface_decl.decl, &complete_iface_decl->getASTContext());
|
|
|
|
FindObjCPropertyAndIvarDeclsWithOrigin(context, *this, complete_iface_decl);
|
|
|
|
return;
|
|
} while (false);
|
|
|
|
do {
|
|
// Check the modules only if the debug information didn't have a complete
|
|
// interface.
|
|
|
|
ClangModulesDeclVendor *modules_decl_vendor =
|
|
m_target->GetClangModulesDeclVendor();
|
|
|
|
if (!modules_decl_vendor)
|
|
break;
|
|
|
|
bool append = false;
|
|
uint32_t max_matches = 1;
|
|
std::vector<clang::NamedDecl *> decls;
|
|
|
|
if (!modules_decl_vendor->FindDecls(class_name, append, max_matches, decls))
|
|
break;
|
|
|
|
DeclFromUser<const ObjCInterfaceDecl> interface_decl_from_modules(
|
|
dyn_cast<ObjCInterfaceDecl>(decls[0]));
|
|
|
|
if (!interface_decl_from_modules.IsValid())
|
|
break;
|
|
|
|
LLDB_LOG(log,
|
|
"CAS::FOPD[{0}] trying module "
|
|
"(ObjCInterfaceDecl*){1}/(ASTContext*){2}...",
|
|
interface_decl_from_modules.decl,
|
|
&interface_decl_from_modules->getASTContext());
|
|
|
|
if (FindObjCPropertyAndIvarDeclsWithOrigin(context, *this,
|
|
interface_decl_from_modules))
|
|
return;
|
|
} while (false);
|
|
|
|
do {
|
|
// Check the runtime only if the debug information didn't have a complete
|
|
// interface and nothing was in the modules.
|
|
|
|
lldb::ProcessSP process(m_target->GetProcessSP());
|
|
|
|
if (!process)
|
|
return;
|
|
|
|
ObjCLanguageRuntime *language_runtime(ObjCLanguageRuntime::Get(*process));
|
|
|
|
if (!language_runtime)
|
|
return;
|
|
|
|
DeclVendor *decl_vendor = language_runtime->GetDeclVendor();
|
|
|
|
if (!decl_vendor)
|
|
break;
|
|
|
|
bool append = false;
|
|
uint32_t max_matches = 1;
|
|
std::vector<clang::NamedDecl *> decls;
|
|
|
|
auto *clang_decl_vendor = llvm::cast<ClangDeclVendor>(decl_vendor);
|
|
if (!clang_decl_vendor->FindDecls(class_name, append, max_matches, decls))
|
|
break;
|
|
|
|
DeclFromUser<const ObjCInterfaceDecl> interface_decl_from_runtime(
|
|
dyn_cast<ObjCInterfaceDecl>(decls[0]));
|
|
|
|
if (!interface_decl_from_runtime.IsValid())
|
|
break;
|
|
|
|
LLDB_LOG(log,
|
|
"CAS::FOPD[{0}] trying runtime "
|
|
"(ObjCInterfaceDecl*){1}/(ASTContext*){2}...",
|
|
interface_decl_from_runtime.decl,
|
|
&interface_decl_from_runtime->getASTContext());
|
|
|
|
if (FindObjCPropertyAndIvarDeclsWithOrigin(context, *this,
|
|
interface_decl_from_runtime))
|
|
return;
|
|
} while (false);
|
|
}
|
|
|
|
typedef llvm::DenseMap<const FieldDecl *, uint64_t> FieldOffsetMap;
|
|
typedef llvm::DenseMap<const CXXRecordDecl *, CharUnits> BaseOffsetMap;
|
|
|
|
template <class D, class O>
|
|
static bool ImportOffsetMap(llvm::DenseMap<const D *, O> &destination_map,
|
|
llvm::DenseMap<const D *, O> &source_map,
|
|
ClangASTSource &source) {
|
|
// When importing fields into a new record, clang has a hard requirement that
|
|
// fields be imported in field offset order. Since they are stored in a
|
|
// DenseMap with a pointer as the key type, this means we cannot simply
|
|
// iterate over the map, as the order will be non-deterministic. Instead we
|
|
// have to sort by the offset and then insert in sorted order.
|
|
typedef llvm::DenseMap<const D *, O> MapType;
|
|
typedef typename MapType::value_type PairType;
|
|
std::vector<PairType> sorted_items;
|
|
sorted_items.reserve(source_map.size());
|
|
sorted_items.assign(source_map.begin(), source_map.end());
|
|
llvm::sort(sorted_items.begin(), sorted_items.end(),
|
|
[](const PairType &lhs, const PairType &rhs) {
|
|
return lhs.second < rhs.second;
|
|
});
|
|
|
|
for (const auto &item : sorted_items) {
|
|
DeclFromUser<D> user_decl(const_cast<D *>(item.first));
|
|
DeclFromParser<D> parser_decl(user_decl.Import(source));
|
|
if (parser_decl.IsInvalid())
|
|
return false;
|
|
destination_map.insert(
|
|
std::pair<const D *, O>(parser_decl.decl, item.second));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <bool IsVirtual>
|
|
bool ExtractBaseOffsets(const ASTRecordLayout &record_layout,
|
|
DeclFromUser<const CXXRecordDecl> &record,
|
|
BaseOffsetMap &base_offsets) {
|
|
for (CXXRecordDecl::base_class_const_iterator
|
|
bi = (IsVirtual ? record->vbases_begin() : record->bases_begin()),
|
|
be = (IsVirtual ? record->vbases_end() : record->bases_end());
|
|
bi != be; ++bi) {
|
|
if (!IsVirtual && bi->isVirtual())
|
|
continue;
|
|
|
|
const clang::Type *origin_base_type = bi->getType().getTypePtr();
|
|
const clang::RecordType *origin_base_record_type =
|
|
origin_base_type->getAs<RecordType>();
|
|
|
|
if (!origin_base_record_type)
|
|
return false;
|
|
|
|
DeclFromUser<RecordDecl> origin_base_record(
|
|
origin_base_record_type->getDecl());
|
|
|
|
if (origin_base_record.IsInvalid())
|
|
return false;
|
|
|
|
DeclFromUser<CXXRecordDecl> origin_base_cxx_record(
|
|
DynCast<CXXRecordDecl>(origin_base_record));
|
|
|
|
if (origin_base_cxx_record.IsInvalid())
|
|
return false;
|
|
|
|
CharUnits base_offset;
|
|
|
|
if (IsVirtual)
|
|
base_offset =
|
|
record_layout.getVBaseClassOffset(origin_base_cxx_record.decl);
|
|
else
|
|
base_offset =
|
|
record_layout.getBaseClassOffset(origin_base_cxx_record.decl);
|
|
|
|
base_offsets.insert(std::pair<const CXXRecordDecl *, CharUnits>(
|
|
origin_base_cxx_record.decl, base_offset));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ClangASTSource::layoutRecordType(const RecordDecl *record, uint64_t &size,
|
|
uint64_t &alignment,
|
|
FieldOffsetMap &field_offsets,
|
|
BaseOffsetMap &base_offsets,
|
|
BaseOffsetMap &virtual_base_offsets) {
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
LLDB_LOG(log,
|
|
"LayoutRecordType on (ASTContext*){1} '{2}' for (RecordDecl*)"
|
|
"{3} [name = '{4}']",
|
|
m_ast_context, m_clang_ast_context->getDisplayName(), record,
|
|
record->getName());
|
|
|
|
DeclFromParser<const RecordDecl> parser_record(record);
|
|
DeclFromUser<const RecordDecl> origin_record(
|
|
parser_record.GetOrigin(*this));
|
|
|
|
if (origin_record.IsInvalid())
|
|
return false;
|
|
|
|
FieldOffsetMap origin_field_offsets;
|
|
BaseOffsetMap origin_base_offsets;
|
|
BaseOffsetMap origin_virtual_base_offsets;
|
|
|
|
TypeSystemClang::GetCompleteDecl(
|
|
&origin_record->getASTContext(),
|
|
const_cast<RecordDecl *>(origin_record.decl));
|
|
|
|
clang::RecordDecl *definition = origin_record.decl->getDefinition();
|
|
if (!definition || !definition->isCompleteDefinition())
|
|
return false;
|
|
|
|
const ASTRecordLayout &record_layout(
|
|
origin_record->getASTContext().getASTRecordLayout(origin_record.decl));
|
|
|
|
int field_idx = 0, field_count = record_layout.getFieldCount();
|
|
|
|
for (RecordDecl::field_iterator fi = origin_record->field_begin(),
|
|
fe = origin_record->field_end();
|
|
fi != fe; ++fi) {
|
|
if (field_idx >= field_count)
|
|
return false; // Layout didn't go well. Bail out.
|
|
|
|
uint64_t field_offset = record_layout.getFieldOffset(field_idx);
|
|
|
|
origin_field_offsets.insert(
|
|
std::pair<const FieldDecl *, uint64_t>(*fi, field_offset));
|
|
|
|
field_idx++;
|
|
}
|
|
|
|
lldbassert(&record->getASTContext() == m_ast_context);
|
|
|
|
DeclFromUser<const CXXRecordDecl> origin_cxx_record(
|
|
DynCast<const CXXRecordDecl>(origin_record));
|
|
|
|
if (origin_cxx_record.IsValid()) {
|
|
if (!ExtractBaseOffsets<false>(record_layout, origin_cxx_record,
|
|
origin_base_offsets) ||
|
|
!ExtractBaseOffsets<true>(record_layout, origin_cxx_record,
|
|
origin_virtual_base_offsets))
|
|
return false;
|
|
}
|
|
|
|
if (!ImportOffsetMap(field_offsets, origin_field_offsets, *this) ||
|
|
!ImportOffsetMap(base_offsets, origin_base_offsets, *this) ||
|
|
!ImportOffsetMap(virtual_base_offsets, origin_virtual_base_offsets,
|
|
*this))
|
|
return false;
|
|
|
|
size = record_layout.getSize().getQuantity() * m_ast_context->getCharWidth();
|
|
alignment = record_layout.getAlignment().getQuantity() *
|
|
m_ast_context->getCharWidth();
|
|
|
|
if (log) {
|
|
LLDB_LOG(log, "LRT returned:");
|
|
LLDB_LOG(log, "LRT Original = (RecordDecl*)%p",
|
|
static_cast<const void *>(origin_record.decl));
|
|
LLDB_LOG(log, "LRT Size = %" PRId64, size);
|
|
LLDB_LOG(log, "LRT Alignment = %" PRId64, alignment);
|
|
LLDB_LOG(log, "LRT Fields:");
|
|
for (RecordDecl::field_iterator fi = record->field_begin(),
|
|
fe = record->field_end();
|
|
fi != fe; ++fi) {
|
|
LLDB_LOG(log,
|
|
"LRT[{0}] (FieldDecl*){1}, Name = '{2}', Offset = {3} bits",
|
|
*fi, fi->getName(), field_offsets[*fi]);
|
|
}
|
|
DeclFromParser<const CXXRecordDecl> parser_cxx_record =
|
|
DynCast<const CXXRecordDecl>(parser_record);
|
|
if (parser_cxx_record.IsValid()) {
|
|
LLDB_LOG(log, "LRT Bases:");
|
|
for (CXXRecordDecl::base_class_const_iterator
|
|
bi = parser_cxx_record->bases_begin(),
|
|
be = parser_cxx_record->bases_end();
|
|
bi != be; ++bi) {
|
|
bool is_virtual = bi->isVirtual();
|
|
|
|
QualType base_type = bi->getType();
|
|
const RecordType *base_record_type = base_type->getAs<RecordType>();
|
|
DeclFromParser<RecordDecl> base_record(base_record_type->getDecl());
|
|
DeclFromParser<CXXRecordDecl> base_cxx_record =
|
|
DynCast<CXXRecordDecl>(base_record);
|
|
|
|
LLDB_LOG(log,
|
|
"LRT {1}(CXXRecordDecl*){2}, Name = '{3}', Offset = "
|
|
"{4} chars",
|
|
(is_virtual ? "Virtual " : ""), base_cxx_record.decl,
|
|
base_cxx_record.decl->getName(),
|
|
(is_virtual
|
|
? virtual_base_offsets[base_cxx_record.decl].getQuantity()
|
|
: base_offsets[base_cxx_record.decl].getQuantity()));
|
|
}
|
|
} else {
|
|
LLDB_LOG(log, "LRD Not a CXXRecord, so no bases");
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void ClangASTSource::CompleteNamespaceMap(
|
|
ClangASTImporter::NamespaceMapSP &namespace_map, ConstString name,
|
|
ClangASTImporter::NamespaceMapSP &parent_map) const {
|
|
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
if (log) {
|
|
if (parent_map && parent_map->size())
|
|
LLDB_LOG(log,
|
|
"CompleteNamespaceMap on (ASTContext*){1} '{2}' Searching "
|
|
"for namespace {3} in namespace {4}",
|
|
m_ast_context, m_clang_ast_context->getDisplayName(), name,
|
|
parent_map->begin()->second.GetName());
|
|
else
|
|
LLDB_LOG(log,
|
|
"CompleteNamespaceMap on (ASTContext*){1} '{2}' Searching "
|
|
"for namespace {3}",
|
|
m_ast_context, m_clang_ast_context->getDisplayName(), name);
|
|
}
|
|
|
|
if (parent_map) {
|
|
for (ClangASTImporter::NamespaceMap::iterator i = parent_map->begin(),
|
|
e = parent_map->end();
|
|
i != e; ++i) {
|
|
CompilerDeclContext found_namespace_decl;
|
|
|
|
lldb::ModuleSP module_sp = i->first;
|
|
CompilerDeclContext module_parent_namespace_decl = i->second;
|
|
|
|
SymbolFile *symbol_file = module_sp->GetSymbolFile();
|
|
|
|
if (!symbol_file)
|
|
continue;
|
|
|
|
found_namespace_decl =
|
|
symbol_file->FindNamespace(name, module_parent_namespace_decl);
|
|
|
|
if (!found_namespace_decl)
|
|
continue;
|
|
|
|
namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(
|
|
module_sp, found_namespace_decl));
|
|
|
|
LLDB_LOG(log, " CMN Found namespace {1} in module {2}", name,
|
|
module_sp->GetFileSpec().GetFilename());
|
|
}
|
|
} else {
|
|
const ModuleList &target_images = m_target->GetImages();
|
|
std::lock_guard<std::recursive_mutex> guard(target_images.GetMutex());
|
|
|
|
CompilerDeclContext null_namespace_decl;
|
|
|
|
for (size_t i = 0, e = target_images.GetSize(); i < e; ++i) {
|
|
lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i);
|
|
|
|
if (!image)
|
|
continue;
|
|
|
|
CompilerDeclContext found_namespace_decl;
|
|
|
|
SymbolFile *symbol_file = image->GetSymbolFile();
|
|
|
|
if (!symbol_file)
|
|
continue;
|
|
|
|
found_namespace_decl =
|
|
symbol_file->FindNamespace(name, null_namespace_decl);
|
|
|
|
if (!found_namespace_decl)
|
|
continue;
|
|
|
|
namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(
|
|
image, found_namespace_decl));
|
|
|
|
LLDB_LOG(log, " CMN[{0}] Found namespace {1} in module {2}", name,
|
|
image->GetFileSpec().GetFilename());
|
|
}
|
|
}
|
|
}
|
|
|
|
NamespaceDecl *ClangASTSource::AddNamespace(
|
|
NameSearchContext &context,
|
|
ClangASTImporter::NamespaceMapSP &namespace_decls) {
|
|
if (!namespace_decls)
|
|
return nullptr;
|
|
|
|
const CompilerDeclContext &namespace_decl = namespace_decls->begin()->second;
|
|
|
|
clang::ASTContext *src_ast =
|
|
TypeSystemClang::DeclContextGetTypeSystemClang(namespace_decl);
|
|
if (!src_ast)
|
|
return nullptr;
|
|
clang::NamespaceDecl *src_namespace_decl =
|
|
TypeSystemClang::DeclContextGetAsNamespaceDecl(namespace_decl);
|
|
|
|
if (!src_namespace_decl)
|
|
return nullptr;
|
|
|
|
Decl *copied_decl = CopyDecl(src_namespace_decl);
|
|
|
|
if (!copied_decl)
|
|
return nullptr;
|
|
|
|
NamespaceDecl *copied_namespace_decl = dyn_cast<NamespaceDecl>(copied_decl);
|
|
|
|
if (!copied_namespace_decl)
|
|
return nullptr;
|
|
|
|
context.m_decls.push_back(copied_namespace_decl);
|
|
|
|
m_ast_importer_sp->RegisterNamespaceMap(copied_namespace_decl,
|
|
namespace_decls);
|
|
|
|
return dyn_cast<NamespaceDecl>(copied_decl);
|
|
}
|
|
|
|
clang::Decl *ClangASTSource::CopyDecl(Decl *src_decl) {
|
|
return m_ast_importer_sp->CopyDecl(m_ast_context, src_decl);
|
|
}
|
|
|
|
ClangASTImporter::DeclOrigin ClangASTSource::GetDeclOrigin(const clang::Decl *decl) {
|
|
return m_ast_importer_sp->GetDeclOrigin(decl);
|
|
}
|
|
|
|
CompilerType ClangASTSource::GuardedCopyType(const CompilerType &src_type) {
|
|
TypeSystemClang *src_ast =
|
|
llvm::dyn_cast_or_null<TypeSystemClang>(src_type.GetTypeSystem());
|
|
if (src_ast == nullptr)
|
|
return CompilerType();
|
|
|
|
SetImportInProgress(true);
|
|
|
|
QualType copied_qual_type = ClangUtil::GetQualType(
|
|
m_ast_importer_sp->CopyType(*m_clang_ast_context, src_type));
|
|
|
|
SetImportInProgress(false);
|
|
|
|
if (copied_qual_type.getAsOpaquePtr() &&
|
|
copied_qual_type->getCanonicalTypeInternal().isNull())
|
|
// this shouldn't happen, but we're hardening because the AST importer
|
|
// seems to be generating bad types on occasion.
|
|
return CompilerType();
|
|
|
|
return m_clang_ast_context->GetType(copied_qual_type);
|
|
}
|
|
|
|
clang::NamedDecl *NameSearchContext::AddVarDecl(const CompilerType &type) {
|
|
assert(type && "Type for variable must be valid!");
|
|
|
|
if (!type.IsValid())
|
|
return nullptr;
|
|
|
|
TypeSystemClang *lldb_ast =
|
|
llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem());
|
|
if (!lldb_ast)
|
|
return nullptr;
|
|
|
|
IdentifierInfo *ii = m_decl_name.getAsIdentifierInfo();
|
|
|
|
clang::ASTContext &ast = lldb_ast->getASTContext();
|
|
|
|
clang::NamedDecl *Decl = VarDecl::Create(
|
|
ast, const_cast<DeclContext *>(m_decl_context), SourceLocation(),
|
|
SourceLocation(), ii, ClangUtil::GetQualType(type), nullptr, SC_Static);
|
|
m_decls.push_back(Decl);
|
|
|
|
return Decl;
|
|
}
|
|
|
|
clang::NamedDecl *NameSearchContext::AddFunDecl(const CompilerType &type,
|
|
bool extern_c) {
|
|
assert(type && "Type for variable must be valid!");
|
|
|
|
if (!type.IsValid())
|
|
return nullptr;
|
|
|
|
if (m_function_types.count(type))
|
|
return nullptr;
|
|
|
|
TypeSystemClang *lldb_ast =
|
|
llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem());
|
|
if (!lldb_ast)
|
|
return nullptr;
|
|
|
|
m_function_types.insert(type);
|
|
|
|
QualType qual_type(ClangUtil::GetQualType(type));
|
|
|
|
clang::ASTContext &ast = lldb_ast->getASTContext();
|
|
|
|
const bool isInlineSpecified = false;
|
|
const bool hasWrittenPrototype = true;
|
|
const bool isConstexprSpecified = false;
|
|
|
|
clang::DeclContext *context = const_cast<DeclContext *>(m_decl_context);
|
|
|
|
if (extern_c) {
|
|
context = LinkageSpecDecl::Create(
|
|
ast, context, SourceLocation(), SourceLocation(),
|
|
clang::LinkageSpecDecl::LanguageIDs::lang_c, false);
|
|
}
|
|
|
|
// Pass the identifier info for functions the decl_name is needed for
|
|
// operators
|
|
clang::DeclarationName decl_name =
|
|
m_decl_name.getNameKind() == DeclarationName::Identifier
|
|
? m_decl_name.getAsIdentifierInfo()
|
|
: m_decl_name;
|
|
|
|
clang::FunctionDecl *func_decl = FunctionDecl::Create(
|
|
ast, context, SourceLocation(), SourceLocation(), decl_name, qual_type,
|
|
nullptr, SC_Extern, isInlineSpecified, hasWrittenPrototype,
|
|
isConstexprSpecified ? CSK_constexpr : CSK_unspecified);
|
|
|
|
// We have to do more than just synthesize the FunctionDecl. We have to
|
|
// synthesize ParmVarDecls for all of the FunctionDecl's arguments. To do
|
|
// this, we raid the function's FunctionProtoType for types.
|
|
|
|
const FunctionProtoType *func_proto_type =
|
|
qual_type.getTypePtr()->getAs<FunctionProtoType>();
|
|
|
|
if (func_proto_type) {
|
|
unsigned NumArgs = func_proto_type->getNumParams();
|
|
unsigned ArgIndex;
|
|
|
|
SmallVector<ParmVarDecl *, 5> parm_var_decls;
|
|
|
|
for (ArgIndex = 0; ArgIndex < NumArgs; ++ArgIndex) {
|
|
QualType arg_qual_type(func_proto_type->getParamType(ArgIndex));
|
|
|
|
parm_var_decls.push_back(
|
|
ParmVarDecl::Create(ast, const_cast<DeclContext *>(context),
|
|
SourceLocation(), SourceLocation(), nullptr,
|
|
arg_qual_type, nullptr, SC_Static, nullptr));
|
|
}
|
|
|
|
func_decl->setParams(ArrayRef<ParmVarDecl *>(parm_var_decls));
|
|
} else {
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
|
|
|
|
LLDB_LOG(log, "Function type wasn't a FunctionProtoType");
|
|
}
|
|
|
|
// If this is an operator (e.g. operator new or operator==), only insert the
|
|
// declaration we inferred from the symbol if we can provide the correct
|
|
// number of arguments. We shouldn't really inject random decl(s) for
|
|
// functions that are analyzed semantically in a special way, otherwise we
|
|
// will crash in clang.
|
|
clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS;
|
|
if (func_proto_type &&
|
|
TypeSystemClang::IsOperator(decl_name.getAsString().c_str(), op_kind)) {
|
|
if (!TypeSystemClang::CheckOverloadedOperatorKindParameterCount(
|
|
false, op_kind, func_proto_type->getNumParams()))
|
|
return nullptr;
|
|
}
|
|
m_decls.push_back(func_decl);
|
|
|
|
return func_decl;
|
|
}
|
|
|
|
clang::NamedDecl *NameSearchContext::AddGenericFunDecl() {
|
|
FunctionProtoType::ExtProtoInfo proto_info;
|
|
|
|
proto_info.Variadic = true;
|
|
|
|
QualType generic_function_type(m_ast_source.m_ast_context->getFunctionType(
|
|
m_ast_source.m_ast_context->UnknownAnyTy, // result
|
|
ArrayRef<QualType>(), // argument types
|
|
proto_info));
|
|
|
|
return AddFunDecl(
|
|
m_ast_source.m_clang_ast_context->GetType(generic_function_type), true);
|
|
}
|
|
|
|
clang::NamedDecl *
|
|
NameSearchContext::AddTypeDecl(const CompilerType &clang_type) {
|
|
if (ClangUtil::IsClangType(clang_type)) {
|
|
QualType qual_type = ClangUtil::GetQualType(clang_type);
|
|
|
|
if (const TypedefType *typedef_type =
|
|
llvm::dyn_cast<TypedefType>(qual_type)) {
|
|
TypedefNameDecl *typedef_name_decl = typedef_type->getDecl();
|
|
|
|
m_decls.push_back(typedef_name_decl);
|
|
|
|
return (NamedDecl *)typedef_name_decl;
|
|
} else if (const TagType *tag_type = qual_type->getAs<TagType>()) {
|
|
TagDecl *tag_decl = tag_type->getDecl();
|
|
|
|
m_decls.push_back(tag_decl);
|
|
|
|
return tag_decl;
|
|
} else if (const ObjCObjectType *objc_object_type =
|
|
qual_type->getAs<ObjCObjectType>()) {
|
|
ObjCInterfaceDecl *interface_decl = objc_object_type->getInterface();
|
|
|
|
m_decls.push_back((NamedDecl *)interface_decl);
|
|
|
|
return (NamedDecl *)interface_decl;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void NameSearchContext::AddLookupResult(clang::DeclContextLookupResult result) {
|
|
for (clang::NamedDecl *decl : result)
|
|
m_decls.push_back(decl);
|
|
}
|
|
|
|
void NameSearchContext::AddNamedDecl(clang::NamedDecl *decl) {
|
|
m_decls.push_back(decl);
|
|
}
|