1//===- lib/TextAPI/SymbolSet.cpp - TAPI Symbol Set ------------*- 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/TextAPI/SymbolSet.h"
10
11using namespace llvm;
12using namespace llvm::MachO;
13
14Symbol *SymbolSet::addGlobalImpl(EncodeKind Kind, StringRef Name,
15 SymbolFlags Flags) {
16 Name = copyString(String: Name);
17 auto Result = Symbols.try_emplace(Key: SymbolsMapKey{Kind, Name}, Args: nullptr);
18 if (Result.second)
19 Result.first->second =
20 new (Allocator) Symbol{Kind, Name, TargetList(), Flags};
21 return Result.first->second;
22}
23
24Symbol *SymbolSet::addGlobal(EncodeKind Kind, StringRef Name, SymbolFlags Flags,
25 const Target &Targ) {
26 auto *Sym = addGlobalImpl(Kind, Name, Flags);
27 Sym->addTarget(InputTarget: Targ);
28 return Sym;
29}
30
31const Symbol *SymbolSet::findSymbol(EncodeKind Kind, StringRef Name,
32 ObjCIFSymbolKind ObjCIF) const {
33 if (auto result = Symbols.lookup(Val: {Kind, Name}))
34 return result;
35 if ((ObjCIF == ObjCIFSymbolKind::None) || (ObjCIF > ObjCIFSymbolKind::EHType))
36 return nullptr;
37 assert(ObjCIF <= ObjCIFSymbolKind::EHType &&
38 "expected single ObjCIFSymbolKind enum value");
39 // Non-complete ObjC Interfaces are represented as global symbols.
40 if (ObjCIF == ObjCIFSymbolKind::Class)
41 return Symbols.lookup(
42 Val: {EncodeKind::GlobalSymbol, (ObjC2ClassNamePrefix + Name).str()});
43 if (ObjCIF == ObjCIFSymbolKind::MetaClass)
44 return Symbols.lookup(
45 Val: {EncodeKind::GlobalSymbol, (ObjC2MetaClassNamePrefix + Name).str()});
46 return Symbols.lookup(
47 Val: {EncodeKind::GlobalSymbol, (ObjC2EHTypePrefix + Name).str()});
48}
49