Improve DispatchFromDyn and CoerceUnsized impl validation
#135228
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Darksonn
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Yes, I don't think it's important to include both tests.
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@bors r+ |
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(feel free to r- and fix the typo before this lands if you care to 🤷♀️) |
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hm yeah i'll update it @bors r- |
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@bors r=BoxyUwU |
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…atch, r=BoxyUwU Improve `DispatchFromDyn` and `CoerceUnsized` impl validation * Disallow arbitrary 1-ZST fields in `DispatchFromDyn` -- only `PhantomData`, and 1-ZSTs that mention no params (which is needed to support, e.g., the `Global` alloctor in `Box<T, U = Global>`). * Don't allow coercing between non-ZSTs to ZSTs (since the previous check wasn't actually checking the field tys were the same before checking the layout...) * Normalize the field before checking it's `PhantomData`. Fixes rust-lang#135215 Fixes rust-lang#135214 Fixes rust-lang#135220 r? `@BoxyUwU` or reassign
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…atch, r=BoxyUwU Improve `DispatchFromDyn` and `CoerceUnsized` impl validation * Disallow arbitrary 1-ZST fields in `DispatchFromDyn` -- only `PhantomData`, and 1-ZSTs that mention no params (which is needed to support, e.g., the `Global` alloctor in `Box<T, U = Global>`). * Don't allow coercing between non-ZSTs to ZSTs (since the previous check wasn't actually checking the field tys were the same before checking the layout...) * Normalize the field before checking it's `PhantomData`. Fixes rust-lang#135215 Fixes rust-lang#135214 Fixes rust-lang#135220 r? ``@BoxyUwU`` or reassign
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#134940 (Make sure to scrape region constraints from deeply normalizing type outlives assumptions in borrowck) - rust-lang#135047 (Add gpu-kernel calling convention) - rust-lang#135228 (Improve `DispatchFromDyn` and `CoerceUnsized` impl validation) - rust-lang#135264 (Consider more erroneous layouts as `LayoutError::ReferencesError` to suppress spurious errors) - rust-lang#135302 (for purely return-type based searches, deprioritize clone-like functions) - rust-lang#135380 (Make sure we can produce `ConstArgHasWrongType` errors for valtree consts) - rust-lang#135425 (Do not consider traits that have unsatisfied const conditions to be conditionally const) r? `@ghost` `@rustbot` modify labels: rollup
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…kingjubilee Rollup of 11 pull requests Successful merges: - rust-lang#134913 (bootstrap: do not rely on LIBRARY_PATH env variable) - rust-lang#134940 (Make sure to scrape region constraints from deeply normalizing type outlives assumptions in borrowck) - rust-lang#135228 (Improve `DispatchFromDyn` and `CoerceUnsized` impl validation) - rust-lang#135264 (Consider more erroneous layouts as `LayoutError::ReferencesError` to suppress spurious errors) - rust-lang#135302 (for purely return-type based searches, deprioritize clone-like functions) - rust-lang#135353 (re-add --disable-minification to rustdoc) - rust-lang#135380 (Make sure we can produce `ConstArgHasWrongType` errors for valtree consts) - rust-lang#135423 (Enforce syntactical stability of const traits in HIR) - rust-lang#135425 (Do not consider traits that have unsatisfied const conditions to be conditionally const) - rust-lang#135499 (fix underlining of hovered intra-doc links.) - rust-lang#135505 (Fix clippy lints in rustdoc) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#135228 - compiler-errors:normalizes-ur-dispatch, r=BoxyUwU Improve `DispatchFromDyn` and `CoerceUnsized` impl validation * Disallow arbitrary 1-ZST fields in `DispatchFromDyn` -- only `PhantomData`, and 1-ZSTs that mention no params (which is needed to support, e.g., the `Global` alloctor in `Box<T, U = Global>`). * Don't allow coercing between non-ZSTs to ZSTs (since the previous check wasn't actually checking the field tys were the same before checking the layout...) * Normalize the field before checking it's `PhantomData`. Fixes rust-lang#135215 Fixes rust-lang#135214 Fixes rust-lang#135220 r? ```@BoxyUwU``` or reassign
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DispatchFromDyn-- onlyPhantomData, and 1-ZSTs that mention no params (which is needed to support, e.g., theGlobalalloctor inBox<T, U = Global>).PhantomData.Fixes #135215
Fixes #135214
Fixes #135220
r? @BoxyUwU or reassign