This content originally appeared on DEV Community and was authored by Mạnh Vũ
Recently, I must type too much for alias Module for using short name in code(Module name in Elixir is quite long). Problem here is I need to repeat that action over and over.
When posted a proposal for solve this problem I receives an advice very valuation from community. I repost the idea in here for people can read and solve problem if that problem is like mine.
Define a macro and function for supporting centric all aliases like:
defmodule Namespace do
@moduledoc """
This module provides a way to define a namespace for a set of modules.
It can be used to define a set of modules that share a common prefix.
This version only support for native atom not a alias.
# usage
```
use Namespace, DataSpace
```
"""
defmacro __using__(namespace) do
Namespace.get(Macro.expand_once(namespace, __ENV__))
end
def get(Suppliers) do
quote do
alias MyApp.Domains.Suppliers
alias Suppliers.Hotel
alias Suppliers.Transport
alias Suppliers.Restaurant
end
end
def get(Customers) do
quote do
alias MyApp.Structs.Customers
alias Customers.Address
alias Customers.Details
end
end
end
In other module I can use like:
defmodule MyApp.Data.Processor do
use Namespace, Suppliers
...
end
This way help me provide a centric way and clean code for alias and avoid to repeat add alias ... action.
Downside of this way is compiler is warning if an alias is unused.
Original idea is from post in Elixir community
This content originally appeared on DEV Community and was authored by Mạnh Vũ
Mạnh Vũ | Sciencx (2025-10-24T03:04:00+00:00) Solve alias problem in Elixir. Retrieved from https://www.scien.cx/2025/10/24/solve-alias-problem-in-elixir/
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