>> yes ‘=‘ instead of ‘==‘. I hit on that trying random things and don’t really
>> understand it, an ‘=‘ in an if() test is something I’m having trouble
>> getting my brain around.
>
> It’s not that strange. The statement contains an initializer (conceptually
> 'let a = y.assocatedValue’), so there’s gonna be a “=“. Note that in your
> original version:
>
>> if case test.two( let a ) == y { }
>
> what’s on the LHS of the “==“ isn’t a value of any kind — what were you
> expecting the value of ‘a’ to be?
"You extract each associated value as a constant (with the let prefix) or a
variable (with the var prefix) for use within the switch case’s body...”
Given that I’d expect if case to act as if I’d done roughly the same thing
with a switch statement
switch test {
case .two(let a)
// do something with .two’s associated value
default:
// do something else
}
Marc
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
