https://github.com/pragdave/mdef

Easily define multiple function heads in elixir
https://github.com/pragdave/mdef

Last synced: 7 days ago
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Easily define multiple function heads in elixir

• Host: GitHub
• URL: https://github.com/pragdave/mdef
• Owner: pragdave
• Created: 2014-07-12T21:15:28.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2020-03-08T01:19:28.000Z (over 4 years ago)
• Last Synced: 2024-10-02T06:29:07.595Z (about 1 month ago)
• Language: Elixir
• Size: 7.81 KB
• Stars: 49
• Watchers: 3
• Forks: 10
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • Changelog: Changelog.md

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README

        
MultiDef—Define a function with multiple heads

==============================================

Add the dependency `{:multidef, "> 0.0.0"}` to mix.exs.

Use it like this:

```elixir

defmodule Test do

  import MultiDef

  mdef fib do

    0 -> 0

    1 -> 1

    n -> fib(n-1) + fib(n-1)

  end

end

```

```elixir

IO.puts Test.fib(20)

```

When clauses can be used:

```elixir

defmodule Test do

  import MultiDef

  mdef fib do

    0 -> 0

    1 -> 1

    n when n > 0 -> fib(n-1) + fib(n-1)

  end

end

```

```elixir

IO.puts Test.fib(20)

```

Does not support default arguments.

Does not enforce that all heads have the same arity (deliberately).

----

Copyright © 2014 Dave Thomas, The Pragmatic Programmers  

@/+pragdave, [email protected]

Licensed under the same terms as Elixir