mapOrNull<TResult extends Object?> method
- @optionalTypeArgs
- TResult? threadViewPost(
- UFeedGetPostThreadThreadThreadViewPost value
- TResult? notFoundPost(
- UFeedGetPostThreadThreadNotFoundPost value
- TResult? blockedPost(
- UFeedGetPostThreadThreadBlockedPost value
- TResult? unknown(
- UFeedGetPostThreadThreadUnknown value
A variant of map
that fallback to returning null
.
It is equivalent to doing:
switch (sealedClass) {
case final Subclass value:
return ...;
case _:
return null;
}
Implementation
@optionalTypeArgs TResult? mapOrNull<TResult extends Object?>({TResult? Function( UFeedGetPostThreadThreadThreadViewPost value)? threadViewPost,TResult? Function( UFeedGetPostThreadThreadNotFoundPost value)? notFoundPost,TResult? Function( UFeedGetPostThreadThreadBlockedPost value)? blockedPost,TResult? Function( UFeedGetPostThreadThreadUnknown value)? unknown,}){
final _that = this;
switch (_that) {
case UFeedGetPostThreadThreadThreadViewPost() when threadViewPost != null:
return threadViewPost(_that);case UFeedGetPostThreadThreadNotFoundPost() when notFoundPost != null:
return notFoundPost(_that);case UFeedGetPostThreadThreadBlockedPost() when blockedPost != null:
return blockedPost(_that);case UFeedGetPostThreadThreadUnknown() when unknown != null:
return unknown(_that);case _:
return null;
}
}