Details
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Type:
Enhancement
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Status:
Closed
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Priority:
Minor
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Resolution: Declined
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Affects Version/s: None
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Fix Version/s: None
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Component/s: None
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Labels:None
Description
I'd like a predicate to determine whether an object is a (promise). Currently promises are implemented as a reify of IFn and IDeref, meaning there is no meaningful superclass to test for. It seems to me the simplest solution would be to create an IPromise interface extending IDeref; then (defn promise? [x] (instance? IPromise x)) is a simple solution. Even an empty "tagging" interface for IPromise would do, but it might also be nice to add a delivered? predicate for promises so that it's possible to test whether they're delivered without blocking or catching the "multiple deliver" exception; that would make the IPromise interface more meaningful as well.
This is fairly simple stuff, so I'll start plugging away at a patch and hope nobody objects.
Activity
| Field | Original Value | New Value |
|---|---|---|
| Status | Open [ 1 ] | Closed [ 6 ] |
| Resolution | Declined [ 2 ] |