1 //===- TypeTableCollection.cpp -------------------------------- *- 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 #include "llvm/DebugInfo/CodeView/TypeTableCollection.h"
10 
11 #include "llvm/DebugInfo/CodeView/CVTypeVisitor.h"
12 #include "llvm/DebugInfo/CodeView/RecordName.h"
13 #include "llvm/Support/BinaryStreamReader.h"
14 
15 using namespace llvm;
16 using namespace llvm::codeview;
17 
18 TypeTableCollection::TypeTableCollection(ArrayRef<ArrayRef<uint8_t>> Records)
19     : NameStorage(Allocator), Records(Records) {
20   Names.resize(Records.size());
21 }
22 
23 Optional<TypeIndex> TypeTableCollection::getFirst() {
24   if (empty())
25     return None;
26   return TypeIndex::fromArrayIndex(0);
27 }
28 
29 Optional<TypeIndex> TypeTableCollection::getNext(TypeIndex Prev) {
30   assert(contains(Prev));
31   ++Prev;
32   if (Prev.toArrayIndex() == size())
33     return None;
34   return Prev;
35 }
36 
37 CVType TypeTableCollection::getType(TypeIndex Index) {
38   assert(Index.toArrayIndex() < Records.size());
39   return CVType(Records[Index.toArrayIndex()]);
40 }
41 
42 StringRef TypeTableCollection::getTypeName(TypeIndex Index) {
43   if (Index.isNoneType() || Index.isSimple())
44     return TypeIndex::simpleTypeName(Index);
45 
46   uint32_t I = Index.toArrayIndex();
47   if (Names[I].data() == nullptr) {
48     StringRef Result = NameStorage.save(computeTypeName(*this, Index));
49     Names[I] = Result;
50   }
51   return Names[I];
52 }
53 
54 bool TypeTableCollection::contains(TypeIndex Index) {
55   return Index.toArrayIndex() <= size();
56 }
57 
58 uint32_t TypeTableCollection::size() { return Records.size(); }
59 
60 uint32_t TypeTableCollection::capacity() { return Records.size(); }
61