Re: The meaning of 'sugar' [Forked from Re: Why do we have ipairs?]
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- Subject: Re: The meaning of 'sugar' [Forked from Re: Why do we have ipairs?]
- From: Coroutines <coroutines@...>
- Date: 2014年6月11日 21:45:19 -0700
Something I think other people undervalue is how easy code is to skim.
if v == 'value1' then
do_something()
elseif v == 'value2' then
do_something_else()
goto whatever
elseif v == 'value3 then
do_another_thing()
else
::whatever::
do_whatever()
end
While this is readable, I feel like this is more comfortable:
switch condition do
'value1' then
do_something()
break
'value3' then
do_another_thing()
break
'value2' then
do_something_else()
else
do_whatever()
end
I'm not sure if this is the exact syntax I would want. It's important
that the value being compared is top-level, and what it is being
compared against is on the same level of indentation -- also
fall-through is possible. I find long elseif chains a bit skewing,
especially when using something like goto in the mix. If I want to
understand code quickly, I expect "skim value" in how I can express
those comparisons. Shrug it off as convenience for lazy programmers ~