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go/types: make AssignableTo work for tuples #7692

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griesemer opened this issue Apr 2, 2014 · 2 comments
Closed

go/types: make AssignableTo work for tuples #7692

griesemer opened this issue Apr 2, 2014 · 2 comments
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FrozenDueToAge NeedsDecision Feedback is required from experts, contributors, and/or the community before a change can be made.
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Unplanned

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@griesemer
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This is feature request, not a bug.

By adonovan:

"Assignable(tuple, tuple) should probably implement element-wise assignability
since that's the effective semantics when you return a multi-valued expression or
value,ok expression.    It comes up in my refactoring tool, I want to ask: can I assign
this expr (multi-valued) to this Signature.Result()?  It would be convenient if it
worked for tuples.  Not a big deal though."

(personal e-mail from 4/1/2014)

(This may be useful to do, especially if it would simplify checking of return
statements, etc. and cases where the lhs is multi-valued, and the rhs is a (single)
tuple).
@griesemer griesemer self-assigned this Apr 2, 2014
@bradfitz bradfitz removed the new label Dec 18, 2014
@rsc rsc added this to the Unplanned milestone Apr 10, 2015
@rsc rsc removed the release-none label Apr 10, 2015
@rsc rsc changed the title go.tools/go.types: make AssignableTo work for tuples x/tools/go.types: make AssignableTo work for tuples Apr 14, 2015
@rsc rsc modified the milestones: Unreleased, Unplanned Apr 14, 2015
@rsc rsc removed the repo-tools label Apr 14, 2015
@rsc rsc mentioned this issue May 19, 2015
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@griesemer griesemer changed the title x/tools/go.types: make AssignableTo work for tuples go/types: make AssignableTo work for tuples Jul 31, 2015
@griesemer
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Re-evaluate and make decision for 1.9.

@griesemer griesemer modified the milestones: Go1.9, Unreleased Feb 25, 2017
@griesemer griesemer added the NeedsDecision Feedback is required from experts, contributors, and/or the community before a change can be made. label Feb 25, 2017
@griesemer griesemer modified the milestones: Unplanned, Go1.9 Mar 13, 2017
@griesemer
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I'm going to close this for now. @alandonovan, if you still think this is important to have, please re-open, mark for Go 1.11 and "early-in-cycle". Thanks.

@golang golang locked and limited conversation to collaborators Dec 20, 2018
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