fix: Fix opaque generics #20523
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fix: Fix opaque generics #20523
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The parent generics were incorrectly not considered for TAIT. I'm not convinced we should follow rustc here, also there are items (opaques) with more than 1 parent (opaque -> fn/type alias -> impl/trait) and I'm not sure we properly account for that in all places, but for now I left it as-is. Also fix a bug where lifetimes' indices were incorrect when there is a self param (they started from 0 instead of 1).
ShoyuVanilla
approved these changes
Aug 24, 2025
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changelog fixup #20329 |
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We gonna have a lot of fixups to that PR... |
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Yeah, sorry about the noise, but it's probably better (both grouping for readability, since individual PR descriptions aren't going to be too interesting on their own, and making it more impressive) for the changelog. |
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The parent generics were incorrectly not considered for TAIT.
I'm not convinced we should follow rustc here, also there are items (opaques) with more than 1 parent (opaque -> fn/type alias -> impl/trait) and I'm not sure we properly account for that in all places, but for now I left it as-is.
Also fix a bug where lifetimes' indices were incorrect when there is a self param (they started from 0 instead of 1).
That was the reason for #20443 (comment).