Defines module attribute getter automatically.

AttrReader

In Elixir, Module variable is often used as a constant. But I didn’t want to bother to define a getter when I wanted to refer to it with Test code etc. If you use AttrReader, you can use it without having to define the getter of the module attribute.

Links

• github: https://github.com/tashirosota/attr_reader
• hexdoc: https://hexdocs.pm/attr_reader/readme.html

Usage

Defines by use

iex> defmodule UseAttrReader do
...>   @foo "foo"
...>   use AttrReader
...>   @bar :bar
...> end

iex> UseAttrReader.foo()
"foo"

iex> UseAttrReader.bar()
:bar

Defines by macro

iex> defmodule UseAttrReaderMacro do
...>   require AttrReader
...>   AttrReader.define @foo
...>   AttrReader.define @bar, "bar"
...>   AttrReader.define @baz, :baz
...> end

iex> UseAttrReader.foo()
nil

iex> UseAttrReader.bar()
"bar"

iex> UseAttrReader.baz()
:baz