1 //==- DIAEnumSymbols.cpp - DIA Symbol Enumerator impl ------------*- 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/DIA/DIAEnumSymbols.h"
10 #include "llvm/DebugInfo/PDB/DIA/DIARawSymbol.h"
11 #include "llvm/DebugInfo/PDB/DIA/DIASession.h"
12 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
13
14 using namespace llvm;
15 using namespace llvm::pdb;
16
DIAEnumSymbols(const DIASession & PDBSession,CComPtr<IDiaEnumSymbols> DiaEnumerator)17 DIAEnumSymbols::DIAEnumSymbols(const DIASession &PDBSession,
18 CComPtr<IDiaEnumSymbols> DiaEnumerator)
19 : Session(PDBSession), Enumerator(DiaEnumerator) {}
20
getChildCount() const21 uint32_t DIAEnumSymbols::getChildCount() const {
22 LONG Count = 0;
23 return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0;
24 }
25
26 std::unique_ptr<PDBSymbol>
getChildAtIndex(uint32_t Index) const27 DIAEnumSymbols::getChildAtIndex(uint32_t Index) const {
28 CComPtr<IDiaSymbol> Item;
29 if (S_OK != Enumerator->Item(Index, &Item))
30 return nullptr;
31
32 std::unique_ptr<DIARawSymbol> RawSymbol(new DIARawSymbol(Session, Item));
33 return std::unique_ptr<PDBSymbol>(PDBSymbol::create(Session, std::move(RawSymbol)));
34 }
35
getNext()36 std::unique_ptr<PDBSymbol> DIAEnumSymbols::getNext() {
37 CComPtr<IDiaSymbol> Item;
38 ULONG NumFetched = 0;
39 if (S_OK != Enumerator->Next(1, &Item, &NumFetched))
40 return nullptr;
41
42 std::unique_ptr<DIARawSymbol> RawSymbol(new DIARawSymbol(Session, Item));
43 return std::unique_ptr<PDBSymbol>(
44 PDBSymbol::create(Session, std::move(RawSymbol)));
45 }
46
reset()47 void DIAEnumSymbols::reset() { Enumerator->Reset(); }
48