forked from OSchip/llvm-project
104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
//===-- ClangExternalASTSourceCallbacks.cpp ---------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Symbol/ClangExternalASTSourceCallbacks.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Clang headers like to use NDEBUG inside of them to enable/disable debug
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// related features using "#ifndef NDEBUG" preprocessor blocks to do one thing
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// or another. This is bad because it means that if clang was built in release
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// mode, it assumes that you are building in release mode which is not always
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// the case. You can end up with functions that are defined as empty in header
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// files when NDEBUG is not defined, and this can cause link errors with the
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// clang .a files that you have since you might be missing functions in the .a
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// file. So we have to define NDEBUG when including clang headers to avoid any
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// mismatches. This is covered by rdar://problem/8691220
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#if !defined(NDEBUG) && !defined(LLVM_NDEBUG_OFF)
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#define LLDB_DEFINED_NDEBUG_FOR_CLANG
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#define NDEBUG
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// Need to include assert.h so it is as clang would expect it to be (disabled)
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#include <assert.h>
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#endif
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#include "clang/AST/DeclBase.h"
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#include "clang/AST/DeclarationName.h"
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#ifdef LLDB_DEFINED_NDEBUG_FOR_CLANG
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#undef NDEBUG
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#undef LLDB_DEFINED_NDEBUG_FOR_CLANG
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// Need to re-include assert.h so it is as _we_ would expect it to be (enabled)
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#include <assert.h>
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#endif
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#include "lldb/Utility/Log.h"
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#include "clang/AST/Decl.h"
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using namespace clang;
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using namespace lldb_private;
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bool ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(
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const clang::DeclContext *decl_ctx,
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clang::DeclarationName clang_decl_name) {
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if (m_callback_find_by_name) {
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llvm::SmallVector<clang::NamedDecl *, 3> results;
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m_callback_find_by_name(m_callback_baton, decl_ctx, clang_decl_name,
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&results);
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SetExternalVisibleDeclsForName(decl_ctx, clang_decl_name, results);
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return (results.size() != 0);
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}
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std::string decl_name(clang_decl_name.getAsString());
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SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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return false;
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}
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void ClangExternalASTSourceCallbacks::CompleteType(TagDecl *tag_decl) {
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if (m_callback_tag_decl)
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m_callback_tag_decl(m_callback_baton, tag_decl);
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}
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void ClangExternalASTSourceCallbacks::CompleteType(
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ObjCInterfaceDecl *objc_decl) {
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if (m_callback_objc_decl)
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m_callback_objc_decl(m_callback_baton, objc_decl);
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}
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bool ClangExternalASTSourceCallbacks::layoutRecordType(
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const clang::RecordDecl *Record, uint64_t &Size, uint64_t &Alignment,
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llvm::DenseMap<const clang::FieldDecl *, uint64_t> &FieldOffsets,
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llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> &BaseOffsets,
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llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>
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&VirtualBaseOffsets) {
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if (m_callback_layout_record_type)
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return m_callback_layout_record_type(m_callback_baton, Record, Size,
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Alignment, FieldOffsets, BaseOffsets,
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VirtualBaseOffsets);
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return false;
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}
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void ClangExternalASTSourceCallbacks::FindExternalLexicalDecls(
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const clang::DeclContext *decl_ctx,
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llvm::function_ref<bool(clang::Decl::Kind)> IsKindWeWant,
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llvm::SmallVectorImpl<clang::Decl *> &decls) {
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if (m_callback_tag_decl && decl_ctx) {
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clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(
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const_cast<clang::DeclContext *>(decl_ctx));
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if (tag_decl)
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CompleteType(tag_decl);
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}
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}
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