1//===- ContinuationRecordBuilder.h ------------------------------*- 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#ifndef LLVM_DEBUGINFO_CODEVIEW_CONTINUATIONRECORDBUILDER_H
10#define LLVM_DEBUGINFO_CODEVIEW_CONTINUATIONRECORDBUILDER_H
11
12#include "llvm/ADT/ArrayRef.h"
13#include "llvm/ADT/SmallVector.h"
14#include "llvm/DebugInfo/CodeView/CVRecord.h"
15#include "llvm/DebugInfo/CodeView/TypeRecordMapping.h"
16#include "llvm/Support/BinaryByteStream.h"
17#include "llvm/Support/BinaryStreamWriter.h"
18#include <cstdint>
19#include <vector>
20
21namespace llvm {
22namespace codeview {
23class TypeIndex;
24enum class ContinuationRecordKind { FieldList, MethodOverloadList };
25
26class ContinuationRecordBuilder {
27 SmallVector<uint32_t, 4> SegmentOffsets;
28 std::optional<ContinuationRecordKind> Kind;
29 AppendingBinaryByteStream Buffer;
30 BinaryStreamWriter SegmentWriter;
31 TypeRecordMapping Mapping;
32 ArrayRef<uint8_t> InjectedSegmentBytes;
33
34 uint32_t getCurrentSegmentLength() const;
35
36 void insertSegmentEnd(uint32_t Offset);
37 CVType createSegmentRecord(uint32_t OffBegin, uint32_t OffEnd,
38 std::optional<TypeIndex> RefersTo);
39
40public:
41 ContinuationRecordBuilder();
42 ~ContinuationRecordBuilder();
43
44 void begin(ContinuationRecordKind RecordKind);
45
46 // This template is explicitly instantiated in the implementation file for all
47 // supported types. The method itself is ugly, so inlining it into the header
48 // file clutters an otherwise straightforward interface.
49 template <typename RecordType> void writeMemberType(RecordType &Record);
50
51 std::vector<CVType> end(TypeIndex Index);
52};
53} // namespace codeview
54} // namespace llvm
55
56#endif
57