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Add compile fail test for issue 27675 - #77663
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JohnTitor
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Oct 7, 2020
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r? @Aaron1011 as highfive didn't set a reviewer and you commented on that issue. |
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@bors r+ |
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📌 Commit ea206f2 has been approved by |
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…-object-safe, r=Aaron1011 Add compile fail test for issue 27675 A recently merged PR (rust-lang#73905) strengthened the checks on bounds of associated items. This rejects the attack path of rust-lang#27675 which consisted of constructing a `dyn Trait<Item=T>` where `T` would not fulfill the bounds required on `Item` of the `Trait` behind the dyn object. This regression test, extracted from [the weaponized instance](rust-lang#27675 (comment)), checks that this is rejected.
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…as-schievink Rollup of 8 pull requests Successful merges: - rust-lang#76750 (Don't discourage implementing `core::fmt::Write`) - rust-lang#77449 (BTreeMap: comment why drain_filter's size_hint is somewhat pessimistic) - rust-lang#77660 ((docs): make mutex error comment consistent with codebase) - rust-lang#77663 (Add compile fail test for issue 27675) - rust-lang#77673 (Remove unnecessary lamda on emitter map.) - rust-lang#77701 (Make `max_log_info` easily greppable (for figuring out why debug logging is disabled)) - rust-lang#77702 (Remove not needed lambda.) - rust-lang#77710 (Update submodule llvm to get LVI bugfix) Failed merges: r? `@ghost`
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A recently merged PR (#73905) strengthened the checks on bounds of associated items. This rejects the attack path of #27675 which consisted of constructing a
dyn Trait<Item=T>whereTwould not fulfill the bounds required onItemof theTraitbehind the dyn object.This regression test, extracted from the weaponized instance, checks that this is rejected.