chromium/v8/src/wasm/wasm-result.h

// Copyright 2015 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.

#if !V8_ENABLE_WEBASSEMBLY
#error This header should only be included if WebAssembly is enabled.
#endif  // !V8_ENABLE_WEBASSEMBLY

#ifndef V8_WASM_WASM_RESULT_H_
#define V8_WASM_WASM_RESULT_H_

#include <cstdarg>
#include <memory>

#include "src/base/compiler-specific.h"
#include "src/base/macros.h"
#include "src/base/platform/platform.h"

#include "src/common/globals.h"

namespace v8 {
namespace internal {

namespace wasm {

class V8_EXPORT_PRIVATE WasmError { … };

// Either a result of type T, or a WasmError.
template <typename T>
class Result { … };

// A helper for generating error messages that bubble up to JS exceptions.
class V8_EXPORT_PRIVATE ErrorThrower { … };

// Use {nullptr_t} as data value to indicate that this only stores the error,
// but no result value (the only valid value is {nullptr}).
// [Storing {void} would require template specialization.]
VoidResult;

}  // namespace wasm
}  // namespace internal
}  // namespace v8

#endif  // V8_WASM_WASM_RESULT_H_