Module Attributes are condensed with next comment & function about exfmt HOT 3 CLOSED

What do you think the expected output should be?

How would you describe the rule? Bare in mind that there are module attributes in Elixir core such as @doc, @spec, @tag and spec that are expected to sit on the line above the def.

Other similar module attributes are used in libraries and tools on hex.pm (such as Credo) too.

Perhaps we could insert a space between a module attribute followed by a comment.

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I was thinking that it's hard to do this in a general way.

Types that I see:

• known elixir attributes that "attach" to a function (@doc, @spec)
• known elixir attributes that don't attach (@type, @opaque, @before_compile and such)
• application-specific module attributes that "attach" to a function tightly (from your code)
• module-wide "constants" (like what I have above, or more complex ones like this from your code)

I imagine you can have specific rules for those first 2. But I'm not sure a generalized rule for the ones that people come up with themselves.

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New thought- we could use the line numbers in AST node metadata to detect when a user has deliberately left blank spaces. Blank spaces could then be preserved.

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