On 09-04-2012 01:26, Kevin Cox wrote:
I was wondering about the foreach statement and when you implement
opApply() for a class it is implemented using closures. I was wondering
if this is just how it is expressed or if it is actually syntatic
sugar. The reason I aski is because if you have a return statement
inside a foreach it returns from the outside function not the "closure".
I was just wondering if anyone could spill the implementation details.
Thanks,
Kevin
A lot of magic happens with opApply.
Basically, when you exit a foreach block that's using opApply, DMD
translates this into exiting the closure and *then* doing the actual
operation (i.e. return from the outer function).
So, they're not quite closures in the usual sense.
--
- Alex
