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h

Hullaballoonatic

11/02/2019, 8:34 PM
i'd imagine it'd be better if 
fizz
returned nullable, then
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foo.fizz()?.log()
w

william

11/02/2019, 8:35 PM
i don't have control over this api but maybe i can use an extension method to help me achieve that
h

Hullaballoonatic

11/02/2019, 8:36 PM
yeah, that's what I often do
t

Toddobryan

11/02/2019, 8:36 PM
What if it's not an error? Does it just have a side effect or does it return a value?
w

william

11/02/2019, 8:38 PM
there are side effects, only the result is returned (error type)
h

Hullaballoonatic

11/02/2019, 8:38 PM
I assume it's a java library or something, and it's an error getter or something
w

william

11/02/2019, 8:39 PM
no its not an error getter these are methods called for their side effects but an error type is returned
h

Hullaballoonatic

11/02/2019, 8:39 PM
so i'd personally write an extension property:
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val Foo.error get() = foo.fizz().let { if (it.isNotNone()) it else null }
or something oh, alright. well, idk. examples.
t

Toddobryan

11/02/2019, 8:40 PM
You could do something like a 
handle
function that puts all the error handling in one place. Then it's just
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handle(foo.fizz())
handle(foo.buzz())
...
Or an extension on the error types and
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foo.fizz().handle()
foo.buzz().handle()
w

william

11/02/2019, 8:41 PM
thats what i've done ^
thinking about something like this too but not practical unless i can make them each lazy
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handle(
    foo.fizz(),
    foo.buzz()
)
...

    private fun handle(vararg operations: Error) {
        operations.forEach { op ->
            if (op != Error.NONE ) {
                // ...
            }
        }
    }
t

Toddobryan

11/02/2019, 8:53 PM
Yeah. You could do a 
block
there to solve the lazy issue, but you'd still have to wrap each call in some kind of function to check the result.
w

william

11/02/2019, 8:57 PM
@Toddobryan how would a block help me here? i'm not seeing how i could use that to wrap each call individually
t

Toddobryan

11/02/2019, 8:57 PM
No, you can't. That's what I meant.
w

william

11/02/2019, 8:59 PM
ah ok. well i definately don't need to do anything fancy like that, just thought it would be cool if i could
t

Toddobryan

11/02/2019, 8:59 PM
Copy code
someFun {
   foo.fizz()
   foo.buzz()
   ...
}
means the functions don't need to be lazy and lets you exit early on a severe-enough error, but doesn't help at all with the fact that you'd still have to handle each error individually somehow. 😞
w

william

11/02/2019, 9:05 PM
yeah exactly thats what i couldnt figure
oh well 🤷
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