domain_error 2.0.0

Domain errors with Either, Result, and executeSafely for expected errors in Dart applications.

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

2.0.0 - 2026-08-30

Changed

• ExecuteSafelyOptions: onError is now onDomainError, onThrown is now onRawError, and mapThrownToError is now mapRawErrorToDomain. The options type is no longer generic and no longer extends Equatable.
• DomainError.error is now rawError.
• Either is sealed. The error branch is isErr / errValue / Either.err. The success branch is isOk / successValue / Either.ok.
• fold now takes ifErr and ifOk. when is removed. map maps the success value and leaves an error unchanged.
• domainError is available only on Result<T>, not on a generic Either.
• executeSafely now returns Future<Result<T>>. FutureOrResult is removed.

1.0.0 - 2026-08-30

Added

• DomainError base type with a stable typeIdentifier, optional message, error, and stackTrace.
• Either with failure and value branches, plus fold, when, and map.
• Result, FutureResult, and FutureOrResult as Either aliases over DomainError.
• executeSafely to catch throws and return a Result.
• ExecuteSafelyOptions with mapThrownToError, onError, and onThrown.