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/Dart 2

ArgumentError.notNull constructor

ArgumentError.notNull([String name ])

Create an argument error for a null argument that must not be null.

Implementation

ArgumentError.notNull([this.name])
    : _hasValue = false,
      message = "Must not be null",
      invalidValue = null;

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-core/ArgumentError/ArgumentError.notNull.html