Deal

This module is not about Monad or Maybe... it is just a shortcut over the pattern {:ok, value}.

With Deal, you can write code like that:

Deal.with! do
  f(1)
  g()
  h()
end

instead of:

with
    {:ok, a} <- f(1),
    {:ok, b} <- g(a),
    {:ok, c} <- h(b),
do: {:ok, c}

You can checkout the test file for more examples.

Installation

The package can be installed by adding deal to your list of dependencies in mix.exs:

def deps do
  [
    {:deal, "~> 1.0.0"}
  ]
end

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/deal.