of<O, E> static method
Creates a Result from an asynchronous callback Can be used to simplify the creation of a result when the error type is known.
Catches only the error defined by the type.
The type of Err
cannot be null.
Setting Err
type to dynamic
catches all errors.
Implementation
static Future<Result<O, E>> of<O, E>(FutureOr<O> Function() function) async {
assert(E != Null);
try {
final result = await function();
return Ok(result);
// ignore: nullable_type_in_catch_clause
} on E catch (e) {
return Err(e);
}
}