Changed #

• JonasWanke: allow nullable values in Some and Ok

Added #

• amaxcz: add matchOk(), matchErr(), and unwrapOrNull() functions to Result
• amaxcs: unwrap() function now contains the original error message

Changed #

• Now requires Dart SDK version 3 or higher.
• BREAKING CHANGE: Both Option and Result are now sealed classes which allows for the use of exhaustive pattern matching.
• feelsantiago: introduced the sealed class change to Option and Result.

Fixed #

• stumblinbear: Fix possible invalid casting in catch block.

Changed #

• kranfix: Replaced pedantic (deprecated) by very_goog_analysis.
• kranfix: Refactored Option into many mixins.
• kranfix: Better implementation for Option async methods.
• kranfix: Ok.unit and Err.unit static methods

Added #

• rlch: Added async methods to Option<T> and Result<T, E>.
• rlch: Added missing type arguments to Option<T> and Result<T, E>.
• rlch: Added code coverage for async methods.
• rlch: Added OptionFutureRedirector util to redirect methods called on Future<Option<T>>.
• rlch: Added ResultFutureRedirector util to redirect methods called on Future<Result<T, E>>.

Added #

• kranfix: Option<Result<T, E>>.transpose() returns a Result<Option<T>, E>.
• kranfix: Option<Option<T>>.flatten() returns an Option<T>.
• kranfix: Result<Option<T>, E>.transpose() returns an Option<Result<T, E>>.
• kranfix: Result<Result<T, E>, E>.flatten() returns a Result<T, E>.

Changed #

• kranfix: Fixed equality operator for Option and Result.
• kranfix: Added more code coverage in unit tests.

Changed #

• BREAKING CHANGE: can no longer pass null to Result. The rectifies the inconsistent handling of null values with regards to Option and Result.
• kranfix: refactored Option<T extends Object> to fix Result<int?, Exception>.ok(null).ok()
• kranfix: refactored Result<T extends Object, E extends Object> to fix Result<int?, Exception>.ok(null)

Added #

• lemunozm: added isSome(), isNone() to Option.
• lemunozm: added isOk(), isErr() to Result.
• lemunozm: added Option.from() and Option.toNullable() to make easy conversions with nullable values.
• Added a Unit type that is similar to Rust's () type.

Changed #

• lemunozm: return values added to match(), when() in Result, Option.

Changed #

• BREAKING CHANGE: migrated to null safety and Dart SDK 2.12.

Added #

• Add fold() function on Result that combines map() and mapErr().

Changed #

• Fix the package description and code formatting.

Changed #

• BREAKING CHANGES: see below for the details.
• The Result "ok" and "error" values are full-fledged classes now.
• The Option "some" and "none" values are full-fledged classes now.
• Option.isSome() and Option.isNone() are gone, use is Some and is None.
• Result.isOk() and Result.isErr() are gone, use is Ok and is Err.
• The default Result constructor has been renamed to of() instead.
• Passing null to the Option.some() factory constructor will yield a None.
• Both the Ok and Err subclasses of Result allow for null arguments.

Added #

• Borrowing from simple_result, added when() as an alternative to match().

Changed #

• BREAKING CHANGE: the various is methods are now getters.
• Extend Equatable in both Option and Result.
• Override the equals operator (==) in both Option and Result.

Added #

• Initial version