1//===------ NullResolver.h - Reject symbol lookup requests ------*- 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//   Defines a RuntimeDyld::SymbolResolver subclass that rejects all symbol
10// resolution requests, for clients that have no cross-object fixups.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_EXECUTIONENGINE_ORC_NULLRESOLVER_H
15#define LLVM_EXECUTIONENGINE_ORC_NULLRESOLVER_H
16
17#include "llvm/ExecutionEngine/Orc/Legacy.h"
18#include "llvm/ExecutionEngine/RuntimeDyld.h"
19
20namespace llvm {
21namespace orc {
22
23class NullResolver : public SymbolResolver {
24public:
25  SymbolNameSet getResponsibilitySet(const SymbolNameSet &Symbols) final;
26
27  SymbolNameSet lookup(std::shared_ptr<AsynchronousSymbolQuery> Query,
28                       SymbolNameSet Symbols) final;
29};
30
31/// SymbolResolver impliementation that rejects all resolution requests.
32/// Useful for clients that have no cross-object fixups.
33class NullLegacyResolver : public LegacyJITSymbolResolver {
34public:
35  JITSymbol findSymbol(const std::string &Name) final;
36
37  JITSymbol findSymbolInLogicalDylib(const std::string &Name) final;
38};
39
40} // End namespace orc.
41} // End namespace llvm.
42
43#endif // LLVM_EXECUTIONENGINE_ORC_NULLRESOLVER_H
44