70 lines · cpp
1//===--- Record.cpp - struct and class metadata for the VM ------*- C++ -*-===//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//===----------------------------------------------------------------------===//8 9#include "Record.h"10#include "clang/AST/ASTContext.h"11 12using namespace clang;13using namespace clang::interp;14 15Record::Record(const RecordDecl *Decl, BaseList &&SrcBases,16 FieldList &&SrcFields, VirtualBaseList &&SrcVirtualBases,17 unsigned VirtualSize, unsigned BaseSize)18 : Decl(Decl), Bases(std::move(SrcBases)), Fields(std::move(SrcFields)),19 BaseSize(BaseSize), VirtualSize(VirtualSize), IsUnion(Decl->isUnion()),20 IsAnonymousUnion(IsUnion && Decl->isAnonymousStructOrUnion()) {21 for (Base &V : SrcVirtualBases)22 VirtualBases.push_back({V.Decl, V.Offset + BaseSize, V.Desc, V.R});23 24 for (Base &B : Bases)25 BaseMap[B.Decl] = &B;26 for (Field &F : Fields)27 FieldMap[F.Decl] = &F;28 for (Base &V : VirtualBases)29 VirtualBaseMap[V.Decl] = &V;30}31 32std::string Record::getName() const {33 std::string Ret;34 llvm::raw_string_ostream OS(Ret);35 Decl->getNameForDiagnostic(OS, Decl->getASTContext().getPrintingPolicy(),36 /*Qualified=*/true);37 return Ret;38}39 40bool Record::hasTrivialDtor() const {41 if (isAnonymousUnion())42 return true;43 const CXXDestructorDecl *Dtor = getDestructor();44 return !Dtor || Dtor->isTrivial();45}46 47const Record::Field *Record::getField(const FieldDecl *FD) const {48 auto It = FieldMap.find(FD->getFirstDecl());49 assert(It != FieldMap.end() && "Missing field");50 return It->second;51}52 53const Record::Base *Record::getBase(const RecordDecl *FD) const {54 auto It = BaseMap.find(FD);55 assert(It != BaseMap.end() && "Missing base");56 return It->second;57}58 59const Record::Base *Record::getBase(QualType T) const {60 if (auto *RD = T->getAsCXXRecordDecl())61 return BaseMap.lookup(RD);62 return nullptr;63}64 65const Record::Base *Record::getVirtualBase(const RecordDecl *FD) const {66 auto It = VirtualBaseMap.find(FD);67 assert(It != VirtualBaseMap.end() && "Missing virtual base");68 return It->second;69}70