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P2392 Pattern matching using "is" and "as" #1064

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wg21bot opened this issue Jun 26, 2021 · 4 comments
Open

P2392 Pattern matching using "is" and "as" #1064

wg21bot opened this issue Jun 26, 2021 · 4 comments
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EWG Evolution needs-revision Paper needs changes before it can proceed

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wg21bot commented Jun 26, 2021

P2392R0 Pattern matching using “is” and “as” (Herb Sutter)
@wg21bot wg21bot added the EWG Evolution label Jun 26, 2021
@wg21bot wg21bot added this to the 2021-telecon milestone Jun 26, 2021
@jensmaurer jensmaurer changed the title P2392 Pattern matching using “is” and “as” P2392 Pattern matching using "is" and "as" Jun 26, 2021
@jfbastien
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This paper was seen on the 2021-07-07 EWG telecon.

POLL: Should we spend more time on P2392's inspect using is and as, knowing that time is limited and we already have put in a lot of effort towards another patmat proposal?

SF F N A SA
7 13 4 1 2

Result: consensus.

POLL: Should we spend more time on patmat expressions outside of inspect (as proposed in P2392 or otherwise), knowing that time is limited and we already have put in a lot of effort towards another patmat proposal?

SF F N A SA
11 12 4 2 0

Result: consensus.

@jfbastien jfbastien added the needs-revision Paper needs changes before it can proceed label Jul 12, 2021
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wg21bot commented Jul 30, 2021

P2392R1 Pattern matching using "is" and "as" (Herb Sutter)

@wg21bot wg21bot removed the needs-revision Paper needs changes before it can proceed label Jul 30, 2021
@jensmaurer jensmaurer modified the milestones: 2021-telecon, 2022-telecon Jan 1, 2022
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wg21bot commented Oct 17, 2022

P2392R2 Pattern matching using is and as (Herb Sutter)

@erichkeane
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Reviewed in Kona along with #1353:

Regardless of pattern matching, we should encourage pursuing is query/as cast unification in the language.

SF F N A SA
7 10 11 4 1

Result: Consensus for encouragement

EWG Prefers composition over chaining in pattern matching syntax.

SF F N A SA
13 9 2 1 0

Result: Consensus

Who has tried the pattern matching version Bruno did on Godbolt (presented by Michael)?
6 of 19-remote + 35-in-room

Who has tried the pattern matching implementation version that Herb/Sean did in CPPFront/Circle?
3 of 19-remote + 35-in-room

@erichkeane erichkeane mentioned this issue Nov 10, 2022
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@jfbastien jfbastien added the needs-revision Paper needs changes before it can proceed label Jan 20, 2023
@jensmaurer jensmaurer removed this from the 2022-telecon milestone Jan 25, 2023
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