| //===-- ClangUtil.cpp -----------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| // A collection of helper methods and data structures for manipulating clang |
| // types and decls. |
| //===----------------------------------------------------------------------===// |
| |
| #include "Plugins/ExpressionParser/Clang/ClangUtil.h" |
| #include "Plugins/TypeSystem/Clang/TypeSystemClang.h" |
| |
| using namespace clang; |
| using namespace lldb_private; |
| |
| bool ClangUtil::IsClangType(const CompilerType &ct) { |
| // Invalid types are never Clang types. |
| if (!ct) |
| return false; |
| |
| if (llvm::dyn_cast_or_null<TypeSystemClang>(ct.GetTypeSystem()) == nullptr) |
| return false; |
| |
| if (!ct.GetOpaqueQualType()) |
| return false; |
| |
| return true; |
| } |
| |
| clang::Decl *ClangUtil::GetDecl(const CompilerDecl &decl) { |
| assert(llvm::isa<TypeSystemClang>(decl.GetTypeSystem())); |
| return static_cast<clang::Decl *>(decl.GetOpaqueDecl()); |
| } |
| |
| QualType ClangUtil::GetQualType(const CompilerType &ct) { |
| // Make sure we have a clang type before making a clang::QualType |
| if (!IsClangType(ct)) |
| return QualType(); |
| |
| return QualType::getFromOpaquePtr(ct.GetOpaqueQualType()); |
| } |
| |
| QualType ClangUtil::GetCanonicalQualType(const CompilerType &ct) { |
| if (!IsClangType(ct)) |
| return QualType(); |
| |
| return GetQualType(ct).getCanonicalType(); |
| } |
| |
| CompilerType ClangUtil::RemoveFastQualifiers(const CompilerType &ct) { |
| if (!IsClangType(ct)) |
| return ct; |
| |
| QualType qual_type(GetQualType(ct)); |
| qual_type.removeLocalFastQualifiers(); |
| return CompilerType(ct.GetTypeSystem(), qual_type.getAsOpaquePtr()); |
| } |
| |
| clang::TagDecl *ClangUtil::GetAsTagDecl(const CompilerType &type) { |
| clang::QualType qual_type = ClangUtil::GetCanonicalQualType(type); |
| if (qual_type.isNull()) |
| return nullptr; |
| |
| return qual_type->getAsTagDecl(); |
| } |
| |
| std::string ClangUtil::DumpDecl(const clang::Decl *d) { |
| if (!d) |
| return "nullptr"; |
| |
| std::string result; |
| llvm::raw_string_ostream stream(result); |
| bool deserialize = false; |
| d->dump(stream, deserialize); |
| |
| stream.flush(); |
| return result; |
| } |
| |
| std::string ClangUtil::ToString(const clang::Type *t) { |
| return clang::QualType(t, 0).getAsString(); |
| } |
| |
| std::string ClangUtil::ToString(const CompilerType &c) { |
| return ClangUtil::GetQualType(c).getAsString(); |
| } |