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Fix 2.13.9 regression in linting, causing spurious "variable x is never used" warnings #10154

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merged 1 commit into from
Sep 26, 2022
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Fix 2.13.9 regression in linting, causing spurious "variable x is never used" warnings #10154

merged 1 commit into from
Sep 26, 2022

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som-snytt
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The setter can be detected as isVar. Ignore its synthetic parameter.

Fixes scala/bug#12646

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Avoid warning on setter in trait
8b7eedf 
The setter can be detected as isVar. Ignore its synthetic parameter.
@scala-jenkins scala-jenkins added this to the 2.13.10 milestone Sep 23, 2022
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For a trait var, the setter can be detected as isVar. It has a synthetic parameter named x$1 with symbol x_= for var x. These accessors are flagged SYNTHESIZE_IMPL_IN_SUBCLASS.

@SethTisue SethTisue added the prio:blocker release blocker (used only by core team, only near release time) label Sep 23, 2022
lrytz
lrytz reviewed Sep 26, 2022
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👍 thank you!

@lrytz lrytz merged commit 8f57a00 into scala:2.13.x Sep 26, 2022
@som-snytt som-snytt deleted the issue/12646-unused-local branch September 26, 2022 14:18
@SethTisue SethTisue added release-notes worth highlighting in next release notes and removed prio:blocker release blocker (used only by core team, only near release time) labels Sep 30, 2022
@SethTisue SethTisue changed the title Avoid warning on setter in trait Fix 2.13.9 regression causing spurious "variable x is never used" warnings Oct 8, 2022
@SethTisue SethTisue changed the title Fix 2.13.9 regression causing spurious "variable x is never used" warnings Fix 2.13.9 regression in linting, causing spurious "variable x is never used" warnings Oct 8, 2022
@mziolekda mziolekda mentioned this pull request Feb 28, 2023
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2.13.9 Good code error: x in variable x is never used.
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