option_result 0.1.0-dev-1

A lightweight Dart library for Rust-like Option/Result types. Supports exhaustive pattern matching and provides helpers for None()/Err() propagation

0.1.0-dev-1

• Add Option#toString()
• Add Result#toString()
• Rework == for Option and Result types.
  • Previously == would check for matching runtime types in addition to held value equality. I was trying to keep things as close to Rust's behavior as I could. It didn't occur to me until after I rewrote it to be more accommodating of dynamic values that it didn't support comparing held values that inherit from eachother that might normally be comparable in both the original implementation and the rewrite so I scrapped both in favor of solely comparing held values.

0.0.1-dev-9

• Add Result#transpose(), ok(), err()

0.0.1-dev-8

• Add Option#unwrapOrElse(), okOr(), okOrElse(), transpose()
• Add Result#unwrapOrElse(), isOkAnd(), isErrAnd(), mapOr(), mapOrElse()

0.0.1-dev-7

• Add Option#inspect(), xor(), isSomeAnd(), mapOr(), mapOrElse()
• Add Result#inspect(), inspectErr()

0.0.1-dev-6

• Add Option#flatten()
• Add Result#flatten()
• Refactor ~ shortcut for propagateResult/Async to return dynamic for ergonomics.
  • See documentation for more information

0.0.1-dev-5

• Add ~ operator for unwrapping Option and Result types
• Add ~ operator as shortcut for propagating None()/Err() in functions returning Option/Result
• Rework Option#unzip() via extension methods to only provide the method on Option<(T, U)> values

0.0.1-dev-4

• Add Option#and(), andThen(), or(), orElse(), expect()
• Add Result#and(), andThen(), or(), orElse(), expect(), expectErr()

0.0.1-dev-3

• Add Option#map(), zip(), zipWith(), unzip()
• Add Result#map(), mapErr()
• Reworked propagateResult/Async semantics to be more in-line with Rust's Result Err propagation

0.0.1-dev-2

• Add separate packages to allow importing option and result separately
• Add Option#filter() method

0.0.1-dev-1

• Initial version.