dart / 2 / dart-core / argumenterror / argumenterror.notnull.html

ArgumentError.notNull constructor

ArgumentError.notNull(
  1. [String? name]
)

Creates 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 BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-core/ArgumentError/ArgumentError.notNull.html