embedded-file-writer-interface.h

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// Copyright 2021 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef V8_SNAPSHOT_EMBEDDED_EMBEDDED_FILE_WRITER_INTERFACE_H_
#define V8_SNAPSHOT_EMBEDDED_EMBEDDED_FILE_WRITER_INTERFACE_H_
 
#include <string>
 
#include "v8config.h"  // NOLINT(build/include_directory)
 
namespace v8 {
namespace internal {
 
class Builtins;
 
#if defined(V8_OS_WIN64)
namespace win64_unwindinfo {
class BuiltinUnwindInfo;
}
#endif  // V8_OS_WIN64
 
static constexpr char kDefaultEmbeddedVariant[] = "Default";
 
struct LabelInfo {
  int offset;
  std::string name;
};
 
// Detailed source-code information about builtins can only be obtained by
// registration on the isolate during compilation.
class EmbeddedFileWriterInterface {
 public:
  // We maintain a database of filenames to synthetic IDs.
  virtual int LookupOrAddExternallyCompiledFilename(const char* filename) = 0;
  virtual const char* GetExternallyCompiledFilename(int index) const = 0;
  virtual int GetExternallyCompiledFilenameCount() const = 0;
 
  // The isolate will call the method below just prior to replacing the
  // compiled builtin InstructionStream objects with trampolines.
  virtual void PrepareBuiltinSourcePositionMap(Builtins* builtins) = 0;
 
#if defined(V8_OS_WIN64)
  virtual void SetBuiltinUnwindData(
      Builtin builtin,
      const win64_unwindinfo::BuiltinUnwindInfo& unwinding_info) = 0;
#endif  // V8_OS_WIN64
};
 
}  // namespace internal
}  // namespace v8
 
#endif  // V8_SNAPSHOT_EMBEDDED_EMBEDDED_FILE_WRITER_INTERFACE_H_