Clojure

multi arity into

Details

  • Type: Enhancement Enhancement
  • Status: Open Open
  • Priority: Trivial Trivial
  • Resolution: Unresolved
  • Affects Version/s: None
  • Fix Version/s: None
  • Component/s: None
  • Labels:
    None
  • Patch:
    Code and Test

Description

Any reason why into isn't multi arity?

(into to & froms) => (reduce into to froms)

(into #{} [3 3 4] [2 1] ["a"]) looks better than (reduce into #{} [[3 3 4] [2 1] ["a"]])

Activity

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Rich Hickey added a comment -

This is a good example of an idea for an enhancement I haven't approved, and thus is not yet vetted.

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Rich Hickey added a comment - This is a good example of an idea for an enhancement I haven't approved, and thus is not yet vetted.
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Timothy Baldridge added a comment -

Added patch & test. This patch retains the old performance characteristics of into in the case that there is only one collection argument. For example: (into [] [1 2 3]) .

Since the multi-arity version will be slightly slower, I opted to provide it as a second body instead of unifying both into a single body. If someone has a problem with this, I can rewrite the patch. At least this way, into won't get slower.

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Timothy Baldridge added a comment - Added patch & test. This patch retains the old performance characteristics of into in the case that there is only one collection argument. For example: (into [] [1 2 3]) . Since the multi-arity version will be slightly slower, I opted to provide it as a second body instead of unifying both into a single body. If someone has a problem with this, I can rewrite the patch. At least this way, into won't get slower.
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Timothy Baldridge added a comment -

Seems to be a valid enhancement. I can't see any issues we'd have with it. Vetted.

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Timothy Baldridge added a comment - Seems to be a valid enhancement. I can't see any issues we'd have with it. Vetted.

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Dates

  • Created:
    Updated:
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