From 6b5890b3398ddf6cb31a12ff1540df86826cf1f2 Mon Sep 17 00:00:00 2001
From: Chayim Refael Friedman <chayimfr@gmail.com>
Date: Fri, 8 May 2026 05:43:00 +0300
Subject: [PATCH] Implement some trait for next solver's lang item enums

rust-analyzer needs that.
---
 compiler/rustc_type_ir/src/lang_items.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/compiler/rustc_type_ir/src/lang_items.rs b/compiler/rustc_type_ir/src/lang_items.rs
index 4ed574a55ece..05f9bb382dc3 100644
--- a/compiler/rustc_type_ir/src/lang_items.rs
+++ b/compiler/rustc_type_ir/src/lang_items.rs
@@ -1,5 +1,6 @@
 /// Lang items used by the new trait solver. This can be mapped to whatever internal
 /// representation of `LangItem`s used in the underlying compiler implementation.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub enum SolverProjectionLangItem {
     // tidy-alphabetical-start
     AsyncFnKindUpvars,
@@ -15,6 +16,7 @@ pub enum SolverProjectionLangItem {
     // tidy-alphabetical-end
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub enum SolverAdtLangItem {
     // tidy-alphabetical-start
     DynMetadata,
@@ -23,6 +25,7 @@ pub enum SolverAdtLangItem {
     // tidy-alphabetical-end
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub enum SolverTraitLangItem {
     // tidy-alphabetical-start
     AsyncFn,