mapOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? mapOrNull<TResult extends Object?>({
  1. TResult? repoRef(
    1. UAdminUpdateSubjectStatusSubjectRepoRef value
    )?,
  2. TResult? repoStrongRef(
    1. UAdminUpdateSubjectStatusSubjectRepoStrongRef value
    )?,
  3. TResult? repoBlobRef(
    1. UAdminUpdateSubjectStatusSubjectRepoBlobRef value
    )?,
  4. TResult? unknown(
    1. UAdminUpdateSubjectStatusSubjectUnknown 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( UAdminUpdateSubjectStatusSubjectRepoRef value)?  repoRef,TResult? Function( UAdminUpdateSubjectStatusSubjectRepoStrongRef value)?  repoStrongRef,TResult? Function( UAdminUpdateSubjectStatusSubjectRepoBlobRef value)?  repoBlobRef,TResult? Function( UAdminUpdateSubjectStatusSubjectUnknown value)?  unknown,}){
final _that = this;
switch (_that) {
case UAdminUpdateSubjectStatusSubjectRepoRef() when repoRef != null:
return repoRef(_that);case UAdminUpdateSubjectStatusSubjectRepoStrongRef() when repoStrongRef != null:
return repoStrongRef(_that);case UAdminUpdateSubjectStatusSubjectRepoBlobRef() when repoBlobRef != null:
return repoBlobRef(_that);case UAdminUpdateSubjectStatusSubjectUnknown() when unknown != null:
return unknown(_that);case _:
  return null;

}
}