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//===--- Record.cpp - struct and class metadata for the VM ------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "Record.h"
#include "clang/AST/ASTContext.h"
using namespace clang;
using namespace clang::interp;
Record::Record(const RecordDecl *Decl, BaseList &&SrcBases,
FieldList &&SrcFields, VirtualBaseList &&SrcVirtualBases,
unsigned VirtualSize, unsigned BaseSize)
: Decl(Decl), Bases(std::move(SrcBases)), Fields(std::move(SrcFields)),
BaseSize(BaseSize), VirtualSize(VirtualSize), IsUnion(Decl->isUnion()),
IsAnonymousUnion(IsUnion && Decl->isAnonymousStructOrUnion()) {
for (Base &V : SrcVirtualBases)
VirtualBases.push_back({V.Decl, V.Offset + BaseSize, V.Desc, V.R});
for (Base &B : Bases)
BaseMap[B.Decl] = &B;
for (Field &F : Fields)
FieldMap[F.Decl] = &F;
for (Base &V : VirtualBases)
VirtualBaseMap[V.Decl] = &V;
}
std::string Record::getName() const {
std::string Ret;
llvm::raw_string_ostream OS(Ret);
Decl->getNameForDiagnostic(OS, Decl->getASTContext().getPrintingPolicy(),
/*Qualified=*/true);
return Ret;
}
bool Record::hasTrivialDtor() const {
if (isAnonymousUnion())
return true;
const CXXDestructorDecl *Dtor = getDestructor();
return !Dtor || Dtor->isTrivial();
}
const Record::Field *Record::getField(const FieldDecl *FD) const {
auto It = FieldMap.find(FD->getFirstDecl());
assert(It != FieldMap.end() && "Missing field");
return It->second;
}
const Record::Base *Record::getBase(const RecordDecl *FD) const {
auto It = BaseMap.find(FD);
assert(It != BaseMap.end() && "Missing base");
return It->second;
}
const Record::Base *Record::getBase(QualType T) const {
if (auto *RD = T->getAsCXXRecordDecl())
return BaseMap.lookup(RD);
return nullptr;
}
const Record::Base *Record::getVirtualBase(const RecordDecl *FD) const {
auto It = VirtualBaseMap.find(FD);
assert(It != VirtualBaseMap.end() && "Missing virtual base");
return It->second;
}
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