feature(const_generics) -> feature(const_param_types)

compiler/rustc_feature/src/accepted.rs

@@ -273,7 +273,7 @@ declare_features! (
     /// Allows patterns with concurrent by-move and by-ref bindings.
     /// For example, you can write `Foo(a, ref b)` where `a` is by-move and `b` is by-ref.
     (accepted, move_ref_pattern, "1.49.0", Some(68354), None),
-    /// The smallest useful subset of `const_generics`.
+    /// The smallest useful subset of const generics.
     (accepted, min_const_generics, "1.51.0", Some(74878), None),
     /// The `unsafe_op_in_unsafe_fn` lint (allowed by default): no longer treat an unsafe function as an unsafe block.
     (accepted, unsafe_block_in_unsafe_fn, "1.52.0", Some(71668), None),

compiler/rustc_feature/src/active.rs

@@ -71,7 +71,7 @@ macro_rules! declare_features {
             }
 
             pub fn unordered_const_ty_params(&self) -> bool {
-                self.const_generics || self.const_generics_defaults
+                self.const_generics_defaults
             }
 
             /// Some features are known to be incomplete and using them is likely to have
@@ -453,9 +453,6 @@ declare_features! (
     /// Allows using `#[ffi_returns_twice]` on foreign functions.
     (active, ffi_returns_twice, "1.34.0", Some(58314), None),
 
-    /// Allows const generic types (e.g. `struct Foo<const N: usize>(...);`).
-    (incomplete, const_generics, "1.34.0", Some(44580), None),
-
     /// Allows using `#[optimize(X)]`.
     (active, optimize_attribute, "1.34.0", Some(54882), None),
 
@@ -676,6 +673,9 @@ declare_features! (
     /// Allows non-trivial generic constants which have to have wfness manually propagated to callers
     (incomplete, generic_const_exprs, "1.56.0", Some(76560), None),
 
+    /// Allows additional const parameter types, such as `&'static str` or user defined types
+    (incomplete, const_param_types, "1.56.0", Some(44580), None),
+
     // -------------------------------------------------------------------------
     // feature-group-end: actual feature gates
     // -------------------------------------------------------------------------

compiler/rustc_feature/src/removed.rs

@@ -102,6 +102,9 @@ declare_features! (
     (removed, extern_in_paths, "1.33.0", Some(55600), None,
      Some("subsumed by `::foo::bar` paths")),
     (removed, quote, "1.33.0", Some(29601), None, None),
+    /// Allows const generic types (e.g. `struct Foo<const N: usize>(...);`).
+    (removed, const_generics, "1.34.0", Some(44580), None,
+     Some("removed in favor of `#![feature(const_param_types]` and `#![feature(generic_const_exprs)]`")),
     /// Allows `[x; N]` where `x` is a constant (RFC 2203).
     (removed, const_in_array_repeat_expressions,  "1.37.0", Some(49147), None,
      Some("removed due to causing promotable bugs")),