Auto merge of #35856 - phimuemue:master, r=brson

[rust.git] / src / libcore / cmp.rs

diff --git a/src/libcore/cmp.rs b/src/libcore/cmp.rs
index bb7c971111853e2b612158d4a772835f5cbc7b8a..670978a2d49aff8f57dd0e9b25c6eb374c7c3aa5 100644 (file)
--- a/src/libcore/cmp.rs
+++ b/src/libcore/cmp.rs
@@ -34,9 +34,6 @@
 
 use self::Ordering::*;
 
-use marker::Sized;
-use option::Option::{self, Some};
-
 /// Trait for equality comparisons which are [partial equivalence
 /// relations](http://en.wikipedia.org/wiki/Partial_equivalence_relation).
 ///
@@ -386,7 +383,7 @@ fn partial_cmp(&self, other: &Ordering) -> Option<Ordering> {
 /// }
 /// ```
 ///
-/// You may also find it useful to use `partial_cmp()` on your type`s fields. Here
+/// You may also find it useful to use `partial_cmp()` on your type's fields. Here
 /// is an example of `Person` types who have a floating-point `height` field that
 /// is the only field to be used for sorting:
 ///
@@ -571,11 +568,7 @@ pub fn max<T: Ord>(v1: T, v2: T) -> T {
 
 // Implementation of PartialEq, Eq, PartialOrd and Ord for primitive types
 mod impls {
-    use cmp::{PartialOrd, Ord, PartialEq, Eq, Ordering};
-    use cmp::Ordering::{Less, Greater, Equal};
-    use marker::Sized;
-    use option::Option;
-    use option::Option::{Some, None};
+    use cmp::Ordering::{self, Less, Greater, Equal};
 
     macro_rules! partial_eq_impl {
         ($($t:ty)*) => ($(
@@ -699,38 +692,29 @@ fn cmp(&self, other: &bool) -> Ordering {
 
     ord_impl! { char usize u8 u16 u32 u64 isize i8 i16 i32 i64 }
 
-    // Note: This macro is a temporary hack that can be remove once we are building with a compiler
-    // that supports `!`
-    macro_rules! not_stage0 {
-        () => {
-            #[unstable(feature = "never_type", issue = "35121")]
-            impl PartialEq for ! {
-                fn eq(&self, _: &!) -> bool {
-                    *self
-                }
-            }
-
-            #[unstable(feature = "never_type", issue = "35121")]
-            impl Eq for ! {}
+    #[unstable(feature = "never_type", issue = "35121")]
+    impl PartialEq for ! {
+        fn eq(&self, _: &!) -> bool {
+            *self
+        }
+    }
 
-            #[unstable(feature = "never_type", issue = "35121")]
-            impl PartialOrd for ! {
-                fn partial_cmp(&self, _: &!) -> Option<Ordering> {
-                    *self
-                }
-            }
+    #[unstable(feature = "never_type", issue = "35121")]
+    impl Eq for ! {}
 
-            #[unstable(feature = "never_type", issue = "35121")]
-            impl Ord for ! {
-                fn cmp(&self, _: &!) -> Ordering {
-                    *self
-                }
-            }
+    #[unstable(feature = "never_type", issue = "35121")]
+    impl PartialOrd for ! {
+        fn partial_cmp(&self, _: &!) -> Option<Ordering> {
+            *self
         }
     }
 
-    #[cfg(not(stage0))]
-    not_stage0!();
+    #[unstable(feature = "never_type", issue = "35121")]
+    impl Ord for ! {
+        fn cmp(&self, _: &!) -> Ordering {
+            *self
+        }
+    }
 
     // & pointers