maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>({
  1. TResult android()?,
  2. TResult ios()?,
  3. TResult macos()?,
  4. TResult web()?,
  5. TResult linux()?,
  6. TResult windows()?,
  7. TResult fuchsia()?,
  8. required TResult orElse(),
})

A variant of when that fallback to an orElse callback.

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>({TResult Function()?  android,TResult Function()?  ios,TResult Function()?  macos,TResult Function()?  web,TResult Function()?  linux,TResult Function()?  windows,TResult Function()?  fuchsia,required TResult orElse(),}) {final _that = this;
switch (_that) {
case AndroidPlatform() when android != null:
return android();case IosPlatform() when ios != null:
return ios();case MacosPlatform() when macos != null:
return macos();case WebPlatform() when web != null:
return web();case LinuxPlatform() when linux != null:
return linux();case WindowsPlatform() when windows != null:
return windows();case FuchsiaPlatform() when fuchsia != null:
return fuchsia();case _:
  return orElse();

}
}