blob: 402f3bc7c3191086820b88e60c58a3159075c4fe [file] [log] [blame]
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
library analyzer.src.util.asserts;
* Ensures that the given [value] is not null.
* Otherwise throws an [ArgumentError].
* An optional [description] is used in the error message.
void notNull(Object value, [String description]) {
if (value == null) {
if (description == null) {
throw new ArgumentError('Must not be null');
} else {
throw new ArgumentError('Must not be null: $description');