Fixed "adt_const_marker" crate feature

Author: rodrimati1992

Changelog.md

@@ -10,6 +10,7 @@ Replaced `typewit::const_marker::BoolWit` enum with type alias to `BoolWitG``
 
 Added `Copy + Clone + Debug` impls to `BoolWit`
 
+Fixed `"adt_const_marker"` crate feature
 
 ### 1.9.0
 

src/const_marker/slice_const_markers.rs

@@ -16,6 +16,7 @@ super::declare_const_param_type! {
     /// 
     /// ```rust
     /// #![feature(adt_const_params)]
+    /// #![feature(unsized_const_params)]
     /// 
     /// use typewit::{const_marker::Str, MakeTypeWitness};
     /// 

src/lib.rs

@@ -454,6 +454,7 @@
 #![no_std]
 #![cfg_attr(feature = "nightly_mut_refs", feature(const_mut_refs))]
 #![cfg_attr(feature = "adt_const_marker", feature(adt_const_params))]
+#![cfg_attr(feature = "adt_const_marker", feature(unsized_const_params))]
 #![cfg_attr(feature = "adt_const_marker", allow(incomplete_features))]
 #![cfg_attr(feature = "docsrs", feature(doc_cfg))]
 #![allow(clippy::type_complexity)]

src/type_eq.rs

@@ -297,7 +297,9 @@ mod type_eq_ {
     // Declared to work around this error in old Rust versions:
     // > error[E0658]: function pointers cannot appear in constant functions
     struct TypeEqHelper<L: ?Sized, R: ?Sized>(
+        #[allow(dead_code)]
         fn(PhantomData<L>) -> PhantomData<L>,
+        #[allow(dead_code)]
         fn(PhantomData<R>) -> PhantomData<R>,
     );
 

src/type_ne_.rs

@@ -86,7 +86,9 @@ mod type_ne_ {
     // Declared to work around this error in old Rust versions:
     // > error[E0658]: function pointers cannot appear in constant functions
     struct TypeNeHelper<L: ?Sized, R: ?Sized>(
+        #[allow(dead_code)]
         fn(PhantomData<L>) -> PhantomData<L>,
+        #[allow(dead_code)]
         fn(PhantomData<R>) -> PhantomData<R>,
     );
 

tests/all_tests.rs

@@ -1,5 +1,6 @@
 #![deny(unused_mut)]
 #![cfg_attr(feature = "adt_const_marker", feature(adt_const_params))]
+#![cfg_attr(feature = "adt_const_marker", feature(unsized_const_params))]
 #![cfg_attr(feature = "adt_const_marker", allow(incomplete_features))]
 #![cfg_attr(feature = "nightly_mut_refs", feature(const_mut_refs))]