contrib/llvm/include/llvm/ExecutionEngine/Orc/NullResolver.h

   1 //===------ NullResolver.h - Reject symbol lookup requests ------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 //   Defines a RuntimeDyld::SymbolResolver subclass that rejects all symbol
  11 // resolution requests, for clients that have no cross-object fixups.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef LLVM_EXECUTIONENGINE_ORC_NULLRESOLVER_H
  16 #define LLVM_EXECUTIONENGINE_ORC_NULLRESOLVER_H
  17
  18 #include "llvm/ExecutionEngine/Orc/Legacy.h"
  19 #include "llvm/ExecutionEngine/RuntimeDyld.h"
  20
  21 namespace llvm {
  22 namespace orc {
  23
  24 class NullResolver : public SymbolResolver {
  25 public:
  26   SymbolNameSet getResponsibilitySet(const SymbolNameSet &Symbols) final;
  27
  28   SymbolNameSet lookup(std::shared_ptr<AsynchronousSymbolQuery> Query,
  29                        SymbolNameSet Symbols) final;
  30 };
  31
  32 /// SymbolResolver impliementation that rejects all resolution requests.
  33 /// Useful for clients that have no cross-object fixups.
  34 class NullLegacyResolver : public LegacyJITSymbolResolver {
  35 public:
  36   JITSymbol findSymbol(const std::string &Name) final;
  37
  38   JITSymbol findSymbolInLogicalDylib(const std::string &Name) final;
  39 };
  40
  41 } // End namespace orc.
  42 } // End namespace llvm.
  43
  44 #endif // LLVM_EXECUTIONENGINE_ORC_NULLRESOLVER_H