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 for (Base &V : SrcVirtualBases) 21 VirtualBases.push_back({ V.Decl, V.Offset + BaseSize, V.Desc, V.R }); 22 23 for (Base &B : Bases) 24 BaseMap[B.Decl] = &B; 25 for (Field &F : Fields) 26 FieldMap[F.Decl] = &F; 27 for (Base &V : VirtualBases) 28 VirtualBaseMap[V.Decl] = &V; 29 } 30 31 const std::string Record::getName() const { 32 std::string Ret; 33 llvm::raw_string_ostream OS(Ret); 34 Decl->getNameForDiagnostic(OS, Decl->getASTContext().getPrintingPolicy(), 35 /*Qualified=*/true); 36 return Ret; 37 } 38 39 const Record::Field *Record::getField(const FieldDecl *FD) const { 40 auto It = FieldMap.find(FD); 41 assert(It != FieldMap.end() && "Missing field"); 42 return It->second; 43 } 44 45 const Record::Base *Record::getBase(const RecordDecl *FD) const { 46 auto It = BaseMap.find(FD); 47 assert(It != BaseMap.end() && "Missing base"); 48 return It->second; 49 } 50 51 const Record::Base *Record::getBase(QualType T) const { 52 if (auto *RT = T->getAs<RecordType>()) { 53 const RecordDecl *RD = RT->getDecl(); 54 return BaseMap.lookup(RD); 55 } 56 return nullptr; 57 } 58 59 const Record::Base *Record::getVirtualBase(const RecordDecl *FD) const { 60 auto It = VirtualBaseMap.find(FD); 61 assert(It != VirtualBaseMap.end() && "Missing virtual base"); 62 return It->second; 63 } 64