mojo/public/dart/lib/src/union.dart

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

part of bindings;

abstract class Union {
  void encode(Encoder encoder, int offset);
}

class UnionError {
}

class UnsetUnionTagError extends UnionError {
  final curTag;
  final requestedTag;

  UnsetUnionTagError(this.curTag, this.requestedTag);

  String toString() {
    return "Tried to read unset union member: {{requestedTag}} "
      "current member: {{curTag}}.";
  }
}