Opened 20 months ago

#1798 new defect

No promise type.

Reported by: Zipheir Owned by:
Priority: minor Milestone: someday
Component: core libraries Version: 5.3.0
Keywords: types, promises Cc:
Estimated difficulty:


Although promises are a Scheme type, (chicken type) does not provide a promise type. What does work is (struct promise), which seems like an abstraction leak. Please expose a type for promises; even better, provide a parametric promise type, so that (promise t) is a type of delayed t values.

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