Legacy.cpp revision 360784 
1//===------- Legacy.cpp - Adapters for ExecutionEngine API interop --------===//
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/ExecutionEngine/Orc/Legacy.h"
10
11namespace llvm {
12namespace orc {
13
14void SymbolResolver::anchor() {}
15
16JITSymbolResolverAdapter::JITSymbolResolverAdapter(
17    ExecutionSession &ES, SymbolResolver &R, MaterializationResponsibility *MR)
18    : ES(ES), R(R), MR(MR) {}
19
20void JITSymbolResolverAdapter::lookup(const LookupSet &Symbols,
21                                      OnResolvedFunction OnResolved) {
22  SymbolNameSet InternedSymbols;
23  for (auto &S : Symbols)
24    InternedSymbols.insert(ES.intern(S));
25
26  auto OnResolvedWithUnwrap = [OnResolved = std::move(OnResolved)](
27                                  Expected<SymbolMap> InternedResult) mutable {
28    if (!InternedResult) {
29      OnResolved(InternedResult.takeError());
30      return;
31    }
32
33    LookupResult Result;
34    for (auto &KV : *InternedResult)
35      Result[*KV.first] = std::move(KV.second);
36    OnResolved(Result);
37  };
38
39  auto Q = std::make_shared<AsynchronousSymbolQuery>(
40      SymbolLookupSet(InternedSymbols), SymbolState::Resolved,
41      std::move(OnResolvedWithUnwrap));
42
43  auto Unresolved = R.lookup(Q, InternedSymbols);
44  if (Unresolved.empty()) {
45    if (MR)
46      MR->addDependenciesForAll(Q->QueryRegistrations);
47  } else
48    ES.legacyFailQuery(*Q, make_error<SymbolsNotFound>(std::move(Unresolved)));
49}
50
51Expected<JITSymbolResolverAdapter::LookupSet>
52JITSymbolResolverAdapter::getResponsibilitySet(const LookupSet &Symbols) {
53  SymbolNameSet InternedSymbols;
54  for (auto &S : Symbols)
55    InternedSymbols.insert(ES.intern(S));
56
57  auto InternedResult = R.getResponsibilitySet(InternedSymbols);
58  LookupSet Result;
59  for (auto &S : InternedResult) {
60    ResolvedStrings.insert(S);
61    Result.insert(*S);
62  }
63
64  return Result;
65}
66
67} // End namespace orc.
68} // End namespace llvm.
69