Result<T, E> class

Result is a type that that represents either success (ok) or failure (err)

Examples

Basic usage:

class FallibleOpSuccess {}
class FallibleOpFailure {}

Result<FallibleOpSuccess, FallibleOpFailure> fallibleOp() {
  if (true) {
    return ok(FallibleOpSuccess());
  } else {
    return err(FallibleOpFailure());
  }
}

final result = fallibleOp();

result.inspect((value) {
    print('Success with value: $value');
  }).inspectErr((error) {
    print('Failure with error: $error');
  });
}

Available Extensions

• Adapter
• Boolean
• Contains
• Extractors
• Inspect
• OkOrErr
• QueryingValues
• Transformers

Annotations

• @immutable

Constructors

Result.err(E errValue)

Failure Result

const

Result.ok(T okValue)

Success Result

const

Properties

hashCode → int

The hash code for this object.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object? other) → bool

The equality operator.

override