1//===- NativeSymbolEnumerator.cpp - info about enumerators ------*- 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/PDB/Native/NativeSymbolEnumerator.h"
10
11#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
12#include "llvm/DebugInfo/PDB/Native/NativeTypeBuiltin.h"
13#include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
14
15using namespace llvm;
16using namespace llvm::codeview;
17using namespace llvm::pdb;
18
19NativeSymbolEnumerator::NativeSymbolEnumerator(
20 NativeSession &Session, SymIndexId Id, const NativeTypeEnum &Parent,
21 codeview::EnumeratorRecord Record)
22 : NativeRawSymbol(Session, PDB_SymType::Data, Id), Parent(Parent),
23 Record(std::move(Record)) {}
24
25NativeSymbolEnumerator::~NativeSymbolEnumerator() = default;
26
27void NativeSymbolEnumerator::dump(raw_ostream &OS, int Indent,
28 PdbSymbolIdField ShowIdFields,
29 PdbSymbolIdField RecurseIdFields) const {
30 NativeRawSymbol::dump(OS, Indent, ShowIdFields, RecurseIdFields);
31 dumpSymbolIdField(OS, Name: "classParentId", Value: getClassParentId(), Indent, Session,
32 FieldId: PdbSymbolIdField::ClassParent, ShowFlags: ShowIdFields,
33 RecurseFlags: RecurseIdFields);
34 dumpSymbolIdField(OS, Name: "lexicalParentId", Value: getLexicalParentId(), Indent,
35 Session, FieldId: PdbSymbolIdField::LexicalParent, ShowFlags: ShowIdFields,
36 RecurseFlags: RecurseIdFields);
37 dumpSymbolField(OS, Name: "name", Value: getName(), Indent);
38 dumpSymbolIdField(OS, Name: "typeId", Value: getTypeId(), Indent, Session,
39 FieldId: PdbSymbolIdField::Type, ShowFlags: ShowIdFields, RecurseFlags: RecurseIdFields);
40 dumpSymbolField(OS, Name: "dataKind", Value: getDataKind(), Indent);
41 dumpSymbolField(OS, Name: "locationType", Value: getLocationType(), Indent);
42 dumpSymbolField(OS, Name: "constType", Value: isConstType(), Indent);
43 dumpSymbolField(OS, Name: "unalignedType", Value: isUnalignedType(), Indent);
44 dumpSymbolField(OS, Name: "volatileType", Value: isVolatileType(), Indent);
45 dumpSymbolField(OS, Name: "value", Value: getValue(), Indent);
46}
47
48SymIndexId NativeSymbolEnumerator::getClassParentId() const {
49 return Parent.getSymIndexId();
50}
51
52SymIndexId NativeSymbolEnumerator::getLexicalParentId() const { return 0; }
53
54std::string NativeSymbolEnumerator::getName() const {
55 return std::string(Record.Name);
56}
57
58SymIndexId NativeSymbolEnumerator::getTypeId() const {
59 return Parent.getTypeId();
60}
61
62PDB_DataKind NativeSymbolEnumerator::getDataKind() const {
63 return PDB_DataKind::Constant;
64}
65
66PDB_LocType NativeSymbolEnumerator::getLocationType() const {
67 return PDB_LocType::Constant;
68}
69
70bool NativeSymbolEnumerator::isConstType() const { return false; }
71
72bool NativeSymbolEnumerator::isVolatileType() const { return false; }
73
74bool NativeSymbolEnumerator::isUnalignedType() const { return false; }
75
76Variant NativeSymbolEnumerator::getValue() const {
77 const NativeTypeBuiltin &BT = Parent.getUnderlyingBuiltinType();
78
79 switch (BT.getBuiltinType()) {
80 case PDB_BuiltinType::Int:
81 case PDB_BuiltinType::Long:
82 case PDB_BuiltinType::Char: {
83 assert(Record.Value.isSignedIntN(BT.getLength() * 8));
84 int64_t N = Record.Value.getSExtValue();
85 switch (BT.getLength()) {
86 case 1:
87 return Variant{static_cast<int8_t>(N)};
88 case 2:
89 return Variant{static_cast<int16_t>(N)};
90 case 4:
91 return Variant{static_cast<int32_t>(N)};
92 case 8:
93 return Variant{static_cast<int64_t>(N)};
94 }
95 break;
96 }
97 case PDB_BuiltinType::UInt:
98 case PDB_BuiltinType::ULong: {
99 assert(Record.Value.isIntN(BT.getLength() * 8));
100 uint64_t U = Record.Value.getZExtValue();
101 switch (BT.getLength()) {
102 case 1:
103 return Variant{static_cast<uint8_t>(U)};
104 case 2:
105 return Variant{static_cast<uint16_t>(U)};
106 case 4:
107 return Variant{static_cast<uint32_t>(U)};
108 case 8:
109 return Variant{static_cast<uint64_t>(U)};
110 }
111 break;
112 }
113 case PDB_BuiltinType::Bool: {
114 assert(Record.Value.isIntN(BT.getLength() * 8));
115 uint64_t U = Record.Value.getZExtValue();
116 return Variant{static_cast<bool>(U)};
117 }
118 default:
119 assert(false && "Invalid enumeration type");
120 break;
121 }
122
123 return Variant{Record.Value.getSExtValue()};
124}
125