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GADTs: consider singletons when checking invariant refinement #12397

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Merged
merged 1 commit into from
May 10, 2021
Merged

GADTs: consider singletons when checking invariant refinement #12397

merged 1 commit into from
May 10, 2021

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abgruszecki
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We need to consider singleton types as well when checking for invariant refinement.

Fixes #12390.

@abgruszecki abgruszecki requested a review from odersky May 10, 2021 10:28
@odersky odersky assigned abgruszecki and unassigned odersky May 10, 2021
@abgruszecki abgruszecki enabled auto-merge May 10, 2021 11:51
@abgruszecki abgruszecki merged commit 96b91d4 into scala:master May 10, 2021
@abgruszecki abgruszecki deleted the fix/i12390 branch May 10, 2021 11:58
@Kordyjan Kordyjan added this to the 3.0.1 milestone Aug 2, 2023
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@odersky odersky odersky approved these changes

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@abgruszecki abgruszecki

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Successfully merging this pull request may close these issues.

Compiler cannot unify types of a GADT
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@abgruszecki @odersky @Kordyjan