blob: 8e632f3be4609ad1b967eb58f7accabbda64f936 [file] [log] [blame]
//===- TypeRecordHelpers.cpp ------------------------------------*- 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 "llvm/DebugInfo/CodeView/TypeRecordHelpers.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/DebugInfo/CodeView/TypeIndexDiscovery.h"
#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
using namespace llvm;
using namespace llvm::codeview;
template <typename RecordT> static ClassOptions getUdtOptions(CVType CVT) {
RecordT Record;
if (auto EC = TypeDeserializer::deserializeAs<RecordT>(CVT, Record)) {
consumeError(std::move(EC));
return ClassOptions::None;
}
return Record.getOptions();
}
bool llvm::codeview::isUdtForwardRef(CVType CVT) {
ClassOptions UdtOptions = ClassOptions::None;
switch (CVT.kind()) {
case LF_STRUCTURE:
case LF_CLASS:
case LF_INTERFACE:
UdtOptions = getUdtOptions<ClassRecord>(std::move(CVT));
break;
case LF_ENUM:
UdtOptions = getUdtOptions<EnumRecord>(std::move(CVT));
break;
case LF_UNION:
UdtOptions = getUdtOptions<UnionRecord>(std::move(CVT));
break;
default:
return false;
}
return (UdtOptions & ClassOptions::ForwardReference) != ClassOptions::None;
}
TypeIndex llvm::codeview::getModifiedType(const CVType &CVT) {
assert(CVT.kind() == LF_MODIFIER);
SmallVector<TypeIndex, 1> Refs;
discoverTypeIndices(CVT, Refs);
return Refs.front();
}