budgie
What's the best way to define a module-local struct?
What’s the best/most succinct way to define a struct that is only used inside of one module? I sometimes have structures that I want to be more explicit than a map but that have no use elsewhere.
Is there an accepted solution to this problem in the community?
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sodapopcan
The best way I know, which you may well also know, is the submodule syntax with @moduledoc false:
defmodule Foo do
defmodule Bar do
@moduledoc false
defstruct [:one, :two, :three]
end
end
Elixir doesn’t have private modules so @moduledoc false is the next best thing (I actually don’t mind this).
Note: It is not available at compile time (at least not that I know of), ie, you can’t use it in the module body. Inside of functions is fine.
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