Comments (6)
π for rejecting invalid input
But then again what is valid input here? :-)
from promise.
At the moment, it is an array or a promise which resolves to an array. Passing anything other produces
all(null)
->then(function($value) {
assertEquals([], $value);
});
which i think is not an expected behaviour.
from promise.
which i think is not an expected behaviour
Yeah, I agree that we should handle this is in a more sane way π
However, now that we're already considering what is valid input, I would suggest using a stricter definition. For example, ES6-style promises limit the parameter to be an array of promises (or values which are considered like resolved promises): https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Promise/all (which IMHO makes sense to me).
As such, does it make sense to pass a single Promise which resolves to an array of values? Do we have a valid use case for this?
from promise.
As such, does it make sense to pass a single Promise which resolves to an array of values? Do we have a valid use case for this?
I've never used a single input promise.
Options:
- No change, allow input promise which resolves to an array, requires rejection with InvalidArgumentException for non-array input
- Typehint against
array
, does not require rejection for non-array input - Allow
array
and\Traversable
input, no typehint possible, requires rejection with InvalidArgumentException for non-array input
I'm unsure on this atm.
from promise.
No change, allow input promise which resolves to an array, requires rejection with InvalidArgumentException for non-array input
π on this unless we find a valid use case
- Typehint against array, does not require rejection for non-array input
- Allow array and \Traversable input, no typehint possible, requires rejection with InvalidArgumentException for non-array input
IMO both sound saneβ¦
Some (random) thoughts:
- On success, the
all()
method resolves with anarray
, so for consistency it may make sense to require an inputarray
Traversable
andIterator
have valid use cases, though I'm failing to see how these would be beneficial here. Also, converting viaiterator_to_array()
is trivial.- Permitting several input types means we have to use additional runtime checks which add to complexity. Also, this makes it harder to use type guessing (IDEs).
- Typehinting against
array
is trivial and requires no boilerplate. It probably fulfills 80%+ of the use cases anyway and converting to an array is trivial.
As such, I'm leaning towards using an array
typehint π
from promise.
As such, I'm leaning towards using an array typehint
π
from promise.
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from promise.