when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. List<String>? chains,
    2. List<String> accounts,
    3. List<String> methods,
    4. List<String> events,
    )
)

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( List<String>? chains,  List<String> accounts,  List<String> methods,  List<String> events)  $default,) {final _that = this;
switch (_that) {
case _Namespace():
return $default(_that.chains,_that.accounts,_that.methods,_that.events);}
}