[fpc-devel] new features and facilities
ck at carlo-kok.com
Thu Oct 8 19:46:23 CEST 2015
Op 2015-10-08 om 19:25 schreef Dmitry Boyarintsev:
> On Thu, Oct 8, 2015 at 12:54 PM, Sven Barth <pascaldragon at googlemail.com
> <mailto:pascaldragon at googlemail.com>> wrote:
> I had the idea to implement inline-if as well. I think the syntax I
> selected is derived from Oxygene, but it looks very Pascal and
> shouldn't break anything:
> left := if expr1 then expr2 else expr3;
> Thereby expr1 returns Boolean and expr2 determines the type of the
> whole inline-if, thus expr3 needs to be compatible to expr2.
> Does Oxygene allow something like this?
> left := if expr1 then begin exprN, left := exprK end else begin
> left:=left+3; exp3 end
> or is it only one expression at a time?
> left := if expr1 then if expr2 then expr5 else expr6 else expr7;
Only one expression at a time, since the 'result' of the expression in
oxygene is the combined type of the true value and false value, false
being optional defaulting to nil.
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