whenOrNull<TResult extends Object?> method Null safety

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. {TResult? rotation(
    1. double radians
    )?}
)
@optionalTypeArgs, inherited

Implementation

@optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>({
  TResult? Function(double radians)? rotation,
}) =>
    throw _privateConstructorUsedError;