On 19 January 2016 at 14:40, Alexander Walters <tritium-l...@sdamon.com> wrote:
>
>
> On 1/18/2016 23:27, Greg Ewing wrote:
>>
>> Brett Cannon wrote:
>>>
>>> For me, I don't see how::
>>>
>>> if (x != 10)
>>> return NULL;
>>> do_some_more();
>>>
>>> is any clearer or more readable than::
>>>
>>> if (x != 10) {
>>> return NULL;
>>> }
>>> do_some_more();
>>
>>
>> Maybe not for that piece of code on its own, but the version
>> with braces takes up one more line. Put a few of those together,
>> and you can't fit as much code on the screen. If it makes the
>> difference between being able to see e.g. the whole of a loop
>> at once vs. having to scroll up and down, it could make the
>> code as a whole harder to read.
>>
> When someone trying to make this argument in #python for Python code... the
> response is newlines are free. Almost this entire thread has me confused -
> the arguments against are kind of hypocritical; You are developing a
> language with a built in design ethic, and ignoring those ethics while
> building the implementation itself.
There are two conflicting code aesthetics at work here, and the
relevant one for the folks that prefer to avoid braces in C where they
can is:
>>> from __future__ import braces
File "<stdin>", line 1
SyntaxError: not a chance
So if we bring *Python* into the comparison, we can see it splits the
difference between the two C variants by omitting the closing brace
and replacing the opening brace with ":":
x = do_something()
if (x != 10):
return None
do_some_more()
The additional "cost" of mandatory braces in C is thus more lines
containing only a single "}", while the benefit is simply not having
to think about the braceless variant as a possible alternative
spelling.
Cheers,
Nick.
--
Nick Coghlan | ncogh...@gmail.com | Brisbane, Australia
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