// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module webnn.mojom;

// Error message that can be exposed to JS for debugging use. It should be used
// in a union as a return value that represents expected<result, error>, or
// used on its own if the operation has no expected return result.
struct Error {
  // Error code maps to DOMException code.
  enum Code {
    // Internal error from backend.
    kUnknownError,
    // The configuration (e.g. platform, parameters, methods, etc.) is not
    // supported.
    kNotSupportedError,
    // The renderer retry the request via the in-process backend. This code is
    // never surfaced to JavaScript.
    kFallbackToInProcess,
  };

  Code code;
  // Specific error message.
  string message;
};