Screamer

Microlibrary, which adds special function definition macro def!, working like this:

• The body of the function should be defined to raise errors in case of exceptional situations.

def MyModule
  use Screamer

  def! foo() do
    raise "error"
  end
end

• The macro would automaticaly create two functions: with and without screamer:

  iex> MyModule.__info__ :functions
  [foo: 0, foo!: 0]

• The logics of this functions is based on the Elixir contracts: screamed one raises error or return value, clear one return {:ok, value} or {:error, error}:

  iex> MyModule.foo
  {:error, %RuntimeError{message: "error"}}
  
  iex> MyModule.foo!
  ** (RuntimeError) error

Installation

The package is available in Hex, and can be installed as:

1. Add screamer to your list of dependencies in mix.exs:

```elixir
def deps do
  [{:screamer, "~> 0.1.0"}]
end
```