chained assignment
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- Subject: chained assignment
- From: Oliver <oschmidt-mailinglists@...>
- Date: 2019年8月15日 10:21:17 +0200
On 15.08.19 10:04, Sean Conner wrote:
> Well ...
> complexLValue = @[#@ + 1] = newElement
> -spc (Still looks weird ... )
yes looks weird, but this reminds my of another interesting and possible common
use case:
Chained assignment:
a = b = c = expression;
would be equivalent to:
local e = expression; a=e; b=e; c=e;
This would not imply that x = y is an expression. The chained assignment
statement would be a generalized case of normal assignment statement.
Example:
local x = complexLValue[y]
if not x then
x = {}
complexLValue[y] = x
end
-- ... continue operating on x ...
With chained assignment:
x = complexLValue[y] = {}
However this would only save one line in the above example.
-- Oliver