Slava Pestov 30da30e0ee RequirementMachine: Rule::isProtocolRefinementRule() allows transitive refinement ...

Without this, we only considered a protocol refinement rule redundant if
it was derived by directly-stated protocol refinements. But this broke
when completion introduced a 'transitive' refinement [P].[R] => [P]
from two directly-stated refinements [P].[Q] => [P] and [Q].[R] => [Q].

Fixes rdar://problem/90402503.

2022-03-17 15:06:05 -04:00

8.4 KiB

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