Esteban Küber d136b3108d Add more context to fall-through "const pattern of non-structural type" error ... Point at types that need to be marked with `#[derive(PartialEq)]`. We use a visitor to look at a type that isn't structural, looking for all ADTs that don't derive `PartialEq`. These can either be manual `impl PartialEq`s or no `impl` at all, so we differentiate between those two cases to provide more context to the user. We also only point at types and impls from the local crate, otherwise show only a note. ``` error: constant of non-structural type `&[B]` in a pattern --> $DIR/issue-61188-match-slice-forbidden-without-eq.rs:15:9 | LL | struct B(i32); | -------- must be annotated with `#[derive(PartialEq)]` to be usable in patterns LL | LL | const A: &[B] = &[]; | ------------- constant defined here ... LL | A => (), | ^ constant of non-structural type | = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralPartialEq.html for details ```		2024-12-04 20:29:36 +00:00
..
impl-trait
rfc-0000-never_patterns	Never patterns constitute a read for unsafety	2024-09-18 19:17:38 -04:00
rfc-0107-bind-by-move-pattern-guards	Suggest .clone() in some move errors	2024-04-11 16:41:41 +00:00
rfc-1014-stdout-existential-crisis	Remove libc from more tests	2024-04-17 08:36:49 -04:00
rfc-1445-restrict-constants-in-patterns	Add more context to fall-through "const pattern of non-structural type" error	2024-12-04 20:29:36 +00:00
rfc-1623-static	properly fill a promoted's required_consts	2024-04-23 23:02:54 +02:00
rfc-1717-dllimport
rfc-1789-as-cell
rfc-1857-stabilize-drop-order
rfc-1937-termination-trait	Remove detail from label/note that is already available in other note	2024-10-29 16:26:57 +00:00
rfc-2005-default-binding-mode
rfc-2008-non-exhaustive	Update tests for new TRPL chapter order	2024-11-23 08:57:25 -07:00
rfc-2027-dyn-compatible-for-dispatch	UI tests: Rename "object safe" to "dyn compatible"	2024-10-10 01:13:29 +02:00
rfc-2091-track-caller	more asm! -> naked_asm! in tests	2024-10-06 18:12:25 +02:00
rfc-2093-infer-outlives
rfc-2126-crate-paths
rfc-2126-extern-absolute-paths	Tweak output of import suggestions	2024-06-13 20:22:21 +00:00
rfc-2151-raw-identifiers
rfc-2175-or-if-while-let
rfc-2294-if-let-guard	Also check if let chains with multiple lets in these two tests	2024-11-16 05:01:52 +01:00
rfc-2302-self-struct-ctor
rfc-2306-convert-id
rfc-2361-dbg-macro	Remove detail from label/note that is already available in other note	2024-10-29 16:26:57 +00:00
rfc-2396-target_feature-11	Hide implicit target features from diagnostics when possible	2024-08-07 00:43:52 -04:00
rfc-2421-unreserve-pure-offsetof-sizeof-alignof
rfc-2457-non-ascii-idents
rfc-2497-if-let-chains	fix ICE when promoted has layout size overflow	2024-12-01 19:52:27 +01:00
rfc-2528-type-changing-struct-update
rfc-2565-param-attrs	Update tests to use new proc-macro header	2024-11-27 07:18:25 -08:00
rfc-2627-raw-dylib	Simplify cleaning foreign fns in rustdoc	2024-08-16 14:10:06 -04:00
rfc-3348-c-string-literals	Update tests to use new proc-macro header	2024-11-27 07:18:25 -08:00
type-alias-impl-trait
rfc-3391-result-ffi-guarantees.rs	lang: Strengthen RFC 3391 guarantees to match T-lang consensus	2024-10-21 00:43:36 -07:00