clmay
Hi there,
I’m currently following an Elixir tutorial and I have the following lines of code in my project:
Path.join([path, file])
|> File.read!
|> split
|> process(post)
When I run mix format, it gets turned into this:
Path.join([path, file])
|> File.read!()
|> split
|> process(post)
I know this is a minor gripe, but I find it annoying/ugly that (optional) parentheses are added to File.read!/1 but not split/1…
How can I configure mix format not to add (optional) parentheses to functions with no/implicit arguments?
I am aware of the .formatter.exs options import_deps: [...] and locals_without_parens: [...] but could not figure out how to add File.read! to these in a way that mix format would accept.
Any ideas?
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NobbZ
You can not configure the treatment of
File.read!/1, as it is not a “local”.:locals_without_parenswill only ever work for unqualified calls, those you write without a module in fron tof them.And parenthesis aren’t really optional, they are considered best practice by the community and most of us actually agree on the formatter in the regard of adding them unconditionally. I’d even consider it a bug, that none are added to
split/1.The main reason why parens have been made optional for the compiler, is probably to make things like
defanddefmodulewritable without having to wrap parenthesis to their arguments.clmay
This is fine – conversely then, how can I make
mix formatrespect best practices and add parentheses to the call tosplit/1?tadasajon
I’d like to understand how to enforce parentheses everywhere possible as well.
marcandre
For those interested, the latest formatter plugin
freedom_formatternow has the option to add parenthesis for these calls.