v1.4.0

Added

• Unit destructures to an empty array (flash-gordon)
• When .value! called on a Failure value the error references to the value (rewritten + flash-gordon)

  begin
    Failure("oops").value!
  rescue => error
    error.receiver # => Failure("oops")
  end

• Result#alt_map for mapping failure values (flash-gordon)

  Failure("oops").alt_map(&:upcase) # => Failure("OOPS")

• Try#recover recovers from errors (flash-gordon)

  error = Try { Hash.new.fetch(:missing) }
  error.recover(KeyError) { 'default' } # => Try::Value("default")

• Maybe#filter runs a predicate against the wrapped value. Returns None if the result is false (flash-gordon)

  Some(3).filter(&:odd?)  # => Some(3)
  Some(3).filter(&:even?) # => None
  # no block given
  Some(3 == 5).filter     # => None

• RightBiased#| is an alias for #or (flash-gordon)

  None() | Some(6) | Some(7) # => Some(6)
  Failure() | Success("one") | Success("two") # => Success("one")

Fixed

• Do notation preserves method visibility (anicholson + flash-gordon)

Changed

• Coercing nil values to None with Some#fmap is officially deprecated. (flash-gordon)
  Switch to Some#maybe when you expect nil.
  This behavior will be dropped in 2.0 but you can opt-out of warnings for the time being

  Dry::Monads::Maybe.warn_on_implicit_nil_coercion false

• Minimal Ruby version is 2.6

Compare v1.3.5...v1.4.0