1 | //===- AppendingTypeTableBuilder.h -------------------------------*- C++-*-===// |
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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_APPENDINGTYPETABLEBUILDER_H |
10 | #define LLVM_DEBUGINFO_CODEVIEW_APPENDINGTYPETABLEBUILDER_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/SimpleTypeSerializer.h" |
16 | #include "llvm/DebugInfo/CodeView/TypeCollection.h" |
17 | #include "llvm/DebugInfo/CodeView/TypeIndex.h" |
18 | #include "llvm/Support/Allocator.h" |
19 | #include <cstdint> |
20 | |
21 | namespace llvm { |
22 | namespace codeview { |
23 | |
24 | class ContinuationRecordBuilder; |
25 | |
26 | class AppendingTypeTableBuilder : public TypeCollection { |
27 | |
28 | BumpPtrAllocator &RecordStorage; |
29 | SimpleTypeSerializer SimpleSerializer; |
30 | |
31 | /// Contains a list of all records indexed by TypeIndex.toArrayIndex(). |
32 | SmallVector<ArrayRef<uint8_t>, 2> SeenRecords; |
33 | |
34 | public: |
35 | explicit AppendingTypeTableBuilder(BumpPtrAllocator &Storage); |
36 | ~AppendingTypeTableBuilder(); |
37 | |
38 | // TypeCollection overrides |
39 | std::optional<TypeIndex> getFirst() override; |
40 | std::optional<TypeIndex> getNext(TypeIndex Prev) override; |
41 | CVType getType(TypeIndex Index) override; |
42 | StringRef getTypeName(TypeIndex Index) override; |
43 | bool contains(TypeIndex Index) override; |
44 | uint32_t size() override; |
45 | uint32_t capacity() override; |
46 | bool replaceType(TypeIndex &Index, CVType Data, bool Stabilize) override; |
47 | |
48 | // public interface |
49 | void reset(); |
50 | TypeIndex nextTypeIndex() const; |
51 | |
52 | BumpPtrAllocator &getAllocator() { return RecordStorage; } |
53 | |
54 | ArrayRef<ArrayRef<uint8_t>> records() const; |
55 | TypeIndex insertRecordBytes(ArrayRef<uint8_t> &Record); |
56 | TypeIndex insertRecord(ContinuationRecordBuilder &Builder); |
57 | |
58 | template <typename T> TypeIndex writeLeafType(T &Record) { |
59 | ArrayRef<uint8_t> Data = SimpleSerializer.serialize(Record); |
60 | return insertRecordBytes(Record&: Data); |
61 | } |
62 | }; |
63 | |
64 | } // end namespace codeview |
65 | } // end namespace llvm |
66 | |
67 | #endif // LLVM_DEBUGINFO_CODEVIEW_APPENDINGTYPETABLEBUILDER_H |
68 |