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rework opaque types for the new solver #111131

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@lcnr lcnr commented May 3, 2023

this is currently still a mess and has multiple known bugs.

will keep working on it until we can land it. I am currently limiting the new behavior to only apply for the new trait solver but I intend to move it to the old solver as well. Not sure whether that should happen as part of this PR though.

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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative labels May 3, 2023
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lcnr added 2 commits May 3, 2023 22:26
now the annoying part of adding the impl trait tests
to also run with the new solver
@lcnr lcnr mentioned this pull request May 4, 2023
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bors commented May 9, 2023

☔ The latest upstream changes (presumably #111358) made this pull request unmergeable. Please resolve the merge conflicts.

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lcnr commented May 9, 2023

going to close this for now, ended up prefering a slightly different approach and also want to discuss TAIT in a types meeting before putting more energy in this approach, given that it may conflict with the design we actually want to end up with.

@lcnr lcnr closed this May 9, 2023
rust-cloud-vms bot pushed a commit to compiler-errors/rust that referenced this pull request May 25, 2023
…::normalize_opaque_type

Co-authored-by: lcnr <rust@lcnr.de>
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