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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "Record.h" 10 #include "clang/AST/ASTContext.h" 11 12 using namespace clang; 13 using namespace clang::interp; 14 15 Record::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 32 const std::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 40 const Record::Field *Record::getField(const FieldDecl *FD) const { 41 auto It = FieldMap.find(FD->getFirstDecl()); 42 assert(It != FieldMap.end() && "Missing field"); 43 return It->second; 44 } 45 46 const Record::Base *Record::getBase(const RecordDecl *FD) const { 47 auto It = BaseMap.find(FD); 48 assert(It != BaseMap.end() && "Missing base"); 49 return It->second; 50 } 51 52 const Record::Base *Record::getBase(QualType T) const { 53 if (auto *RT = T->getAs<RecordType>()) { 54 const RecordDecl *RD = RT->getDecl(); 55 return BaseMap.lookup(RD); 56 } 57 return nullptr; 58 } 59 60 const Record::Base *Record::getVirtualBase(const RecordDecl *FD) const { 61 auto It = VirtualBaseMap.find(FD); 62 assert(It != VirtualBaseMap.end() && "Missing virtual base"); 63 return It->second; 64 } 65