1//===- ModuleSubstream.cpp --------------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/DebugInfo/CodeView/ModuleSubstream.h"
11
12#include "llvm/DebugInfo/CodeView/StreamReader.h"
13
14using namespace llvm;
15using namespace llvm::codeview;
16
17ModuleSubstream::ModuleSubstream() : Kind(ModuleSubstreamKind::None) {}
18
19ModuleSubstream::ModuleSubstream(ModuleSubstreamKind Kind, StreamRef Data)
20    : Kind(Kind), Data(Data) {}
21
22Error ModuleSubstream::initialize(StreamRef Stream, ModuleSubstream &Info) {
23  const ModuleSubsectionHeader *Header;
24  StreamReader Reader(Stream);
25  if (auto EC = Reader.readObject(Header))
26    return EC;
27
28  ModuleSubstreamKind Kind =
29      static_cast<ModuleSubstreamKind>(uint32_t(Header->Kind));
30  if (auto EC = Reader.readStreamRef(Info.Data, Header->Length))
31    return EC;
32  Info.Kind = Kind;
33  return Error::success();
34}
35
36uint32_t ModuleSubstream::getRecordLength() const {
37  return sizeof(ModuleSubsectionHeader) + Data.getLength();
38}
39
40ModuleSubstreamKind ModuleSubstream::getSubstreamKind() const { return Kind; }
41
42StreamRef ModuleSubstream::getRecordData() const { return Data; }
43