2017-02-22 12:53 GMT+09:00 Ray Fix :
>
> On Feb 21, 2017, at 7:32 PM, rintaro ishizaki wrote:
>
> lifetime guaranteed to be around until the method call completes
>
>
> AFAIK, this is true.
> However, in this case, it's not a method call. The lifetime is only
> guaranteed until getter:increment c
>>
> The problem with this solution is that this changes the semantics. I want a
> value for every Demo instance.
My error... I read too fast and missed the () instantiation of Demo in the
failing call. I was reading it as Demo.increment().
Never mind.
___
> On Feb 21, 2017, at 7:32 PM, rintaro ishizaki wrote:
>
> lifetime guaranteed to be around until the method call completes
>
> AFAIK, this is true.
> However, in this case, it's not a method call. The lifetime is only
> guaranteed until getter:increment completes.
>
> Demo().increment(3)
> |
Thanks. My comment below.
>
> On Feb 21, 2017, at 11:18 AM, Marco S Hyman wrote:
>
>> The following code crashes:
>>
>> class Demo {
>> var value = 0
>> lazy var increment: (Int) -> Void = { [unowned self] by in
>>self.value += by
>>print(self.value)
>> }
>> }
>>
>> Demo().incremen
>
> lifetime guaranteed to be around until the method call completes
AFAIK, this is true.
However, in this case, it's not a method call. The lifetime is only
guaranteed until getter:increment completes.
Demo().increment(3)
|--| lifetime
2017-02-22 3:00 GMT+09:00 Ray Fix via swift-
I think you are right on ` lifetime guaranteed to be around until the
method call completes`. But`[unowned self]` released the retain manually in
your code. Just removing `[unowned self]` part, you code will work.
Zhaoxin
On Wed, Feb 22, 2017 at 3:18 AM, Marco S Hyman via swift-users <
swift-user
> The following code crashes:
>
> class Demo {
> var value = 0
> lazy var increment: (Int) -> Void = { [unowned self] by in
> self.value += by
> print(self.value)
> }
> }
>
> Demo().increment(3)
> error: Playground execution aborted: error: Execution was interrupted,
> reason: EXC
Hi,
The following code crashes:
class Demo {
var value = 0
lazy var increment: (Int) -> Void = { [unowned self] by in
self.value += by
print(self.value)
}
}
Demo().increment(3)
error: Playground execution aborted: error: Execution was interrupted, reason:
EXC_BREAKPOINT (code=EXC
