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  1. //===-- ObjectCache.h - Class definition for the ObjectCache ----*- 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. #ifndef LLVM_EXECUTIONENGINE_OBJECTCACHE_H
  10. #define LLVM_EXECUTIONENGINE_OBJECTCACHE_H
  11.  
  12. #include <memory>
  13.  
  14. namespace llvm {
  15.  
  16. class MemoryBuffer;
  17. class MemoryBufferRef;
  18. class Module;
  19.  
  20. /// This is the base ObjectCache type which can be provided to an
  21. /// ExecutionEngine for the purpose of avoiding compilation for Modules that
  22. /// have already been compiled and an object file is available.
  23. class ObjectCache {
  24.   virtual void anchor();
  25.  
  26. public:
  27.   ObjectCache() = default;
  28.  
  29.   virtual ~ObjectCache() = default;
  30.  
  31.   /// notifyObjectCompiled - Provides a pointer to compiled code for Module M.
  32.   virtual void notifyObjectCompiled(const Module *M, MemoryBufferRef Obj) = 0;
  33.  
  34.   /// Returns a pointer to a newly allocated MemoryBuffer that contains the
  35.   /// object which corresponds with Module M, or 0 if an object is not
  36.   /// available.
  37.   virtual std::unique_ptr<MemoryBuffer> getObject(const Module* M) = 0;
  38. };
  39.  
  40. } // end namespace llvm
  41.  
  42. #endif // LLVM_EXECUTIONENGINE_OBJECTCACHE_H
  43.