87 lines · cpp
1//===-- ClangUtil.cpp -----------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7// A collection of helper methods and data structures for manipulating clang8// types and decls.9//===----------------------------------------------------------------------===//10 11#include "Plugins/ExpressionParser/Clang/ClangUtil.h"12#include "Plugins/TypeSystem/Clang/TypeSystemClang.h"13 14using namespace clang;15using namespace lldb_private;16 17bool ClangUtil::IsClangType(const CompilerType &ct) {18 // Invalid types are never Clang types.19 if (!ct)20 return false;21 22 if (!ct.GetTypeSystem<TypeSystemClang>())23 return false;24 25 if (!ct.GetOpaqueQualType())26 return false;27 28 return true;29}30 31clang::Decl *ClangUtil::GetDecl(const CompilerDecl &decl) {32 assert(llvm::isa<TypeSystemClang>(decl.GetTypeSystem()));33 return static_cast<clang::Decl *>(decl.GetOpaqueDecl());34}35 36QualType ClangUtil::GetQualType(const CompilerType &ct) {37 // Make sure we have a clang type before making a clang::QualType38 if (!IsClangType(ct))39 return QualType();40 41 return QualType::getFromOpaquePtr(ct.GetOpaqueQualType());42}43 44QualType ClangUtil::GetCanonicalQualType(const CompilerType &ct) {45 if (!IsClangType(ct))46 return QualType();47 48 return GetQualType(ct).getCanonicalType();49}50 51CompilerType ClangUtil::RemoveFastQualifiers(const CompilerType &ct) {52 if (!IsClangType(ct))53 return ct;54 55 QualType qual_type(GetQualType(ct));56 qual_type.removeLocalFastQualifiers();57 return CompilerType(ct.GetTypeSystem(), qual_type.getAsOpaquePtr());58}59 60clang::TagDecl *ClangUtil::GetAsTagDecl(const CompilerType &type) {61 clang::QualType qual_type = ClangUtil::GetCanonicalQualType(type);62 if (qual_type.isNull())63 return nullptr;64 65 return qual_type->getAsTagDecl();66}67 68std::string ClangUtil::DumpDecl(const clang::Decl *d) {69 if (!d)70 return "nullptr";71 72 std::string result;73 llvm::raw_string_ostream stream(result);74 bool deserialize = false;75 d->dump(stream, deserialize);76 77 return result;78}79 80std::string ClangUtil::ToString(const clang::Type *t) {81 return clang::QualType(t, 0).getAsString();82}83 84std::string ClangUtil::ToString(const CompilerType &c) {85 return ClangUtil::GetQualType(c).getAsString();86}87