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.

To install, add screamer to your list of dependencies in mix.exs:

def deps do
  [{:screamer, "~> 0.1.2"}]
end

Changelog

0.1.2

[BUG] Fixed bug with functions having predefault values
```
def! foo(a \\ 0) # didn&#39;t work, now works
```

0.1.1

Adding tests
Adding docs

0.1.0

Starting version