Check proj's parent is trait or not when checking dyn compatibility #151754
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…yUwU Check proj's parent is trait or not when checking dyn compatibility Fixes rust-lang#151708 When checking dyn compatibility, `proj` here may point to free const whose parent is not trait. Then `TraitRef::from_assoc` will call `generics_of` on the wrong parent. After this change, the following case without `#[type_const]` will still emit ICE same to rust-lang#149066, but different to the ICE reported in rust-lang#151708 ```rust #![feature(min_generic_const_args)] // #[type_const] const N: usize = 2; trait CollectArray { fn inner_array(&self) -> [i32; N]; } ``` r? @BoxyUwU
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…yUwU Check proj's parent is trait or not when checking dyn compatibility Fixes rust-lang#151708 When checking dyn compatibility, `proj` here may point to free const whose parent is not trait. Then `TraitRef::from_assoc` will call `generics_of` on the wrong parent. After this change, the following case without `#[type_const]` will still emit ICE same to rust-lang#149066, but different to the ICE reported in rust-lang#151708 ```rust #![feature(min_generic_const_args)] // #[type_const] const N: usize = 2; trait CollectArray { fn inner_array(&self) -> [i32; N]; } ``` r? @BoxyUwU
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…yUwU Check proj's parent is trait or not when checking dyn compatibility Fixes rust-lang#151708 When checking dyn compatibility, `proj` here may point to free const whose parent is not trait. Then `TraitRef::from_assoc` will call `generics_of` on the wrong parent. After this change, the following case without `#[type_const]` will still emit ICE same to rust-lang#149066, but different to the ICE reported in rust-lang#151708 ```rust #![feature(min_generic_const_args)] // #[type_const] const N: usize = 2; trait CollectArray { fn inner_array(&self) -> [i32; N]; } ``` r? @BoxyUwU
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…yUwU Check proj's parent is trait or not when checking dyn compatibility Fixes rust-lang#151708 When checking dyn compatibility, `proj` here may point to free const whose parent is not trait. Then `TraitRef::from_assoc` will call `generics_of` on the wrong parent. After this change, the following case without `#[type_const]` will still emit ICE same to rust-lang#149066, but different to the ICE reported in rust-lang#151708 ```rust #![feature(min_generic_const_args)] // #[type_const] const N: usize = 2; trait CollectArray { fn inner_array(&self) -> [i32; N]; } ``` r? @BoxyUwU
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…uwer Rollup of 13 pull requests Successful merges: - #152034 (Show largest job duration changes in hours and minutes in the post-merge report) - #152039 (coverage: Add a test case for a previously-unknown span mismatch) - #152045 (Convert to inline diagnostics in `rustc_infer`) - #149263 (Forbid manual `Unpin` impls for structurally pinned types) - #151754 (Check proj's parent is trait or not when checking dyn compatibility) - #151848 (Port `rustc_mir` to attribute parser) - #151874 (error on unsized AnonConsts) - #151944 (Convert to inline diagnostics in `rustc_attr_parsing`) - #152012 (Use `DEVELOPER_DIR` instead of a custom `xcode-select` script) - #152019 (`NativeLib` cleanups) - #152029 (disable socket tests in Miri) - #152041 (Convert to inline diagnostics in `rustc_query_system`) - #152050 (Try to fix `rustdoc-gui/globals.goml` flakyness) Failed merges: - #152046 (Use glob imports for attribute parsers)
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…uwer Rollup of 12 pull requests Successful merges: - #152034 (Show largest job duration changes in hours and minutes in the post-merge report) - #152039 (coverage: Add a test case for a previously-unknown span mismatch) - #152045 (Convert to inline diagnostics in `rustc_infer`) - #149263 (Forbid manual `Unpin` impls for structurally pinned types) - #151754 (Check proj's parent is trait or not when checking dyn compatibility) - #151848 (Port `rustc_mir` to attribute parser) - #151874 (error on unsized AnonConsts) - #151944 (Convert to inline diagnostics in `rustc_attr_parsing`) - #152019 (`NativeLib` cleanups) - #152029 (disable socket tests in Miri) - #152041 (Convert to inline diagnostics in `rustc_query_system`) - #152050 (Try to fix `rustdoc-gui/globals.goml` flakyness) Failed merges: - #152046 (Use glob imports for attribute parsers)
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…uwer Rollup of 12 pull requests Successful merges: - #152034 (Show largest job duration changes in hours and minutes in the post-merge report) - #152039 (coverage: Add a test case for a previously-unknown span mismatch) - #152045 (Convert to inline diagnostics in `rustc_infer`) - #149263 (Forbid manual `Unpin` impls for structurally pinned types) - #151754 (Check proj's parent is trait or not when checking dyn compatibility) - #151848 (Port `rustc_mir` to attribute parser) - #151874 (error on unsized AnonConsts) - #151944 (Convert to inline diagnostics in `rustc_attr_parsing`) - #152019 (`NativeLib` cleanups) - #152029 (disable socket tests in Miri) - #152041 (Convert to inline diagnostics in `rustc_query_system`) - #152050 (Try to fix `rustdoc-gui/globals.goml` flakyness) Failed merges: - #152046 (Use glob imports for attribute parsers)
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Rollup merge of #151754 - mu001999-contrib:fix/151708, r=BoxyUwU Check proj's parent is trait or not when checking dyn compatibility Fixes #151708 When checking dyn compatibility, `proj` here may point to free const whose parent is not trait. Then `TraitRef::from_assoc` will call `generics_of` on the wrong parent. After this change, the following case without `#[type_const]` will still emit ICE same to #149066, but different to the ICE reported in #151708 ```rust #![feature(min_generic_const_args)] // #[type_const] const N: usize = 2; trait CollectArray { fn inner_array(&self) -> [i32; N]; } ``` r? @BoxyUwU
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Fixes #151708
When checking dyn compatibility,
projhere may point to free const whose parent is not trait. ThenTraitRef::from_assocwill callgenerics_ofon the wrong parent.After this change, the following case without
#[type_const]will still emit ICE same to #149066, but different to the ICE reported in #151708r? @BoxyUwU