Derive PartialEq, Eq, PartialOrd, Ord, Hash

The derived implementations work now that the interior value is always
fully masked[1].

As a side effect, this makes consts eligible for pattern matching.

[1]: rust-ux#65

Close: rust-ux#66

Author: chrysn

src/lib.rs

@@ -25,10 +25,6 @@ use lib::core::ops::{
     ShrAssign,
 };
 
-use lib::core::hash::{Hash, Hasher};
-
-use lib::core::cmp::{Ord, Ordering, PartialOrd};
-
 use lib::core::fmt::{Binary, Display, Formatter, LowerHex, Octal, UpperHex};
 
 macro_rules! define_unsigned {
@@ -37,7 +33,7 @@ macro_rules! define_unsigned {
 
        #[$doc]
         #[allow(non_camel_case_types)]
-        #[derive(Default, Clone, Copy, Debug)]
+        #[derive(Default, Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
         pub struct $name($type);
 
         impl $name {
@@ -60,7 +56,7 @@ macro_rules! define_signed {
 
         #[$doc]
         #[allow(non_camel_case_types)]
-        #[derive(Default, Clone, Copy, Debug)]
+        #[derive(Default, Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
         pub struct $name($type);
 
         #[$doc]
@@ -157,32 +153,6 @@ macro_rules! implement_common {
             }
         }
 
-        impl PartialEq for $name {
-            fn eq(&self, other: &Self) -> bool {
-                self.0 == other.0
-            }
-        }
-
-        impl Eq for $name {}
-
-        impl PartialOrd for $name {
-            fn partial_cmp(&self, other: &$name) -> Option<Ordering> {
-                Some(self.cmp(other))
-            }
-        }
-
-        impl Ord for $name {
-            fn cmp(&self, other: &$name) -> Ordering {
-                self.0.cmp(&other.0)
-            }
-        }
-
-        impl Hash for $name {
-            fn hash<H: Hasher>(&self, h: &mut H) {
-                self.0.hash(h)
-            }
-        }
-
         // Implement formating functions
         impl Display for $name {
             fn fmt(&self, f: &mut Formatter) -> Result<(), lib::core::fmt::Error> {