Trait upcasting coercion (part1) #86264
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r? @nikomatsakis to clarify on #60900 (comment) |
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☔ The latest upstream changes (presumably #86446) made this pull request unmergeable. Please resolve the merge conflicts. |
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I'd like this to wait on #86461 first. |
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☔ The latest upstream changes (presumably #83898) made this pull request unmergeable. Please resolve the merge conflicts. |
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This is ready for review now. |
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✌️ @crlf0710 can now approve this pull request |
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☔ The latest upstream changes (presumably #87237) made this pull request unmergeable. Please resolve the merge conflicts. |
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Tests added with small tweaking on the second group. |
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📌 Commit d60ae35deaaee047ef186c6538bf06f198cb7cbe has been approved by |
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⌛ Testing commit d60ae35deaaee047ef186c6538bf06f198cb7cbe with merge c7e6df822218f6405f46012092b8f4de4840228d... |
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Trait upcasting coercion (part2) This is the second part of trait upcasting coercion implementation. Currently this is blocked on rust-lang#86264 . The third part might be implemented using unsafety checking r? `@bjorn3`
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Trait upcasting coercion (part2) This is the second part of trait upcasting coercion implementation. Currently this is blocked on rust-lang#86264 . The third part might be implemented using unsafety checking r? `@bjorn3`
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This revives the first part of earlier PR #60900 .
It's not very clear to me which parts of that pr was design decisions, so i decide to cut it into pieces and land them incrementally. This allows more eyes on the details.
This is the first part, it adds feature gates, adds feature gates tests, and implemented the unsize conversion part.
(I hope i have dealt with the
ExistentialTraitRefvalues correctly...)The next part will be implementing the pointer casting.