Esteban Küber 6b24fdf811 Provide structured suggestion for unconstrained generic constant ... ``` error: unconstrained generic constant --> $DIR/const-argument-if-length.rs:18:10 | LL | pad: [u8; is_zst::<T>()], | ^^^^^^^^^^^^^^^^^^^ | help: try adding a `where` bound | LL | pub struct AtLeastByte<T: ?Sized> where [(); is_zst::<T>()]: { | ++++++++++++++++++++++++++ ``` Detect when the constant expression isn't `usize` and suggest casting: ``` error: unconstrained generic constant --> f300.rs:6:10 | 6 | bb::<{!N}>(); | ^^^^ -Ztrack-diagnostics: created at compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs:3539:36 | help: try adding a `where` bound | 5 | fn b<const N: bool>() where [(); {!N} as usize]: { | ++++++++++++++++++++++++++ ``` Fix #122395.		2024-03-21 00:03:59 +00:00
..
variance-associated-consts.rs	Merge check_mod_impl_wf and check_mod_type_wf	2024-03-07 06:27:09 +00:00
variance-associated-consts.stderr	Provide structured suggestion for unconstrained generic constant	2024-03-21 00:03:59 +00:00
variance-associated-types2.rs
variance-associated-types2.stderr
variance-associated-types.rs
variance-associated-types.stderr
variance-btree-invariant-types.rs
variance-btree-invariant-types.stderr
variance-cell-is-invariant.rs
variance-cell-is-invariant.stderr
variance-contravariant-arg-object.rs
variance-contravariant-arg-object.stderr
variance-contravariant-arg-trait-match.rs
variance-contravariant-arg-trait-match.stderr
variance-contravariant-self-trait-match.rs
variance-contravariant-self-trait-match.stderr
variance-covariant-arg-object.rs
variance-covariant-arg-object.stderr
variance-covariant-arg-trait-match.rs
variance-covariant-arg-trait-match.stderr
variance-covariant-self-trait-match.rs
variance-covariant-self-trait-match.stderr
variance-intersection-of-ref-and-opt-ref.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
variance-invariant-arg-object.rs
variance-invariant-arg-object.stderr
variance-invariant-arg-trait-match.rs
variance-invariant-arg-trait-match.stderr
variance-invariant-self-trait-match.rs
variance-invariant-self-trait-match.stderr
variance-issue-20533.rs
variance-issue-20533.stderr
variance-iterators-in-libcore.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
variance-object-types.rs
variance-object-types.stderr
variance-regions-direct.rs	Merge check_mod_impl_wf and check_mod_type_wf	2024-03-07 06:27:09 +00:00
variance-regions-direct.stderr	Revert "Auto merge of #122140 - oli-obk:track_errors13, r=davidtwco"	2024-03-11 21:28:16 +00:00
variance-regions-indirect.rs	Merge check_mod_impl_wf and check_mod_type_wf	2024-03-07 06:27:09 +00:00
variance-regions-indirect.stderr	Revert "Auto merge of #122140 - oli-obk:track_errors13, r=davidtwco"	2024-03-11 21:28:16 +00:00
variance-regions-unused-direct.rs
variance-regions-unused-direct.stderr
variance-regions-unused-indirect.rs
variance-regions-unused-indirect.stderr
variance-trait-bounds.rs	Merge check_mod_impl_wf and check_mod_type_wf	2024-03-07 06:27:09 +00:00
variance-trait-bounds.stderr	Revert "Auto merge of #122140 - oli-obk:track_errors13, r=davidtwco"	2024-03-11 21:28:16 +00:00
variance-trait-matching.rs
variance-trait-matching.stderr
variance-trait-object-bound.rs
variance-trait-object-bound.stderr
variance-types-bounds.rs
variance-types-bounds.stderr
variance-types.rs
variance-types.stderr
variance-unused-region-param.rs
variance-unused-region-param.stderr
variance-unused-type-param.rs
variance-unused-type-param.stderr
variance-use-contravariant-struct-1.rs
variance-use-contravariant-struct-1.stderr
variance-use-contravariant-struct-2.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
variance-use-covariant-struct-1.rs
variance-use-covariant-struct-1.stderr
variance-use-covariant-struct-2.rs	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
variance-use-invariant-struct-1.rs
variance-use-invariant-struct-1.stderr