Re: [elixir-core:7826] Proposal: allow newline after `with`

[José Valim]

Good call Ben! The formatter will rewrite it though, while it does keep
parens.



*José Valimwww.plataformatec.com.br
Founder and Director of R*

On Tue, Jan 30, 2018 at 1:46 PM, Ben Wilson  wrote:

> This is achievable with `\` btw:
>
> with \
>   %{x: x} <- y
> do
>   x
> end
>
>
> On Tuesday, January 30, 2018 at 7:39:07 AM UTC-5, Po Chen wrote:
>>
>> Ah I thought `with` was part of the language, then I realized how small
>> the language core is.
>> Now I wish the language is actually a little bigger :S mixed feelings.
>>
>> Thanks for the reply!
>>
>> On Tuesday, 30 January 2018 23:20:49 UTC+11, José Valim wrote:
>>>
>>> Imagine you have this code:
>>>
>>>foo = 1
>>>bar = 2
>>>foo bar do
>>>  :ok
>>>end
>>>
>>> Would you expect it to be equivalent to:
>>>
>>>foo = 1
>>>bar = 2
>>>foo
>>>bar do
>>>  :ok
>>>end
>>>
>>> It isn’t because “foo” in its own line is a valid expression. Replace
>>> “foo” by “with” and you can see why your proposed syntax doesn’t work.
>>>
>>> If you want to write it as you proposed, you need to use parens:
>>>
>>>foo = 1
>>>bar = 2
>>>foo(
>>>  bar
>>>) do
>>>  :ok
>>>end
>>> --
>>>
>>>
>>> *José Valimwww.plataformatec.com.br
>>> Founder and Director of R*
>>>
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Re: [elixir-core:7826] Proposal: allow newline after `with`

[Ben Wilson]

This is achievable with `\` btw:

with \
  %{x: x} <- y
do
  x
end

On Tuesday, January 30, 2018 at 7:39:07 AM UTC-5, Po Chen wrote:
>
> Ah I thought `with` was part of the language, then I realized how small 
> the language core is.
> Now I wish the language is actually a little bigger :S mixed feelings.
>
> Thanks for the reply!
>
> On Tuesday, 30 January 2018 23:20:49 UTC+11, José Valim wrote:
>>
>> Imagine you have this code:
>>
>>foo = 1
>>bar = 2
>>foo bar do
>>  :ok
>>end
>>
>> Would you expect it to be equivalent to:
>>
>>foo = 1
>>bar = 2
>>foo
>>bar do
>>  :ok
>>end
>>
>> It isn’t because “foo” in its own line is a valid expression. Replace 
>> “foo” by “with” and you can see why your proposed syntax doesn’t work.
>>
>> If you want to write it as you proposed, you need to use parens:
>>
>>foo = 1
>>bar = 2
>>foo(
>>  bar
>>) do
>>  :ok
>>end
>> -- 
>>
>>
>> *José Valimwww.plataformatec.com.br 
>> Founder and Director of R*
>>
>

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