ObjectCache.h

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//===-- ObjectCache.h - Class definition for the ObjectCache ----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_EXECUTIONENGINE_OBJECTCACHE_H
#define LLVM_EXECUTIONENGINE_OBJECTCACHE_H
 
#include <memory>
 
namespace llvm {
 
class MemoryBuffer;
class MemoryBufferRef;
class Module;
 
/// This is the base ObjectCache type which can be provided to an
/// ExecutionEngine for the purpose of avoiding compilation for Modules that
/// have already been compiled and an object file is available.
class ObjectCache {
  virtual void anchor();
 
public:
  ObjectCache() = default;
 
  virtual ~ObjectCache() = default;
 
  /// notifyObjectCompiled - Provides a pointer to compiled code for Module M.
  virtual void notifyObjectCompiled(const Module *M, MemoryBufferRef Obj) = 0;
 
  /// Returns a pointer to a newly allocated MemoryBuffer that contains the
  /// object which corresponds with Module M, or 0 if an object is not
  /// available.
  virtual std::unique_ptr<MemoryBuffer> getObject(const Module* M) = 0;
};
 
} // end namespace llvm
 
#endif // LLVM_EXECUTIONENGINE_OBJECTCACHE_H