Merge pull request #1842 from MrAwesome/psp_copy_clone_macros

Create macros for defining Copy/Clone on enums and struct(), use for psp

src/macros.rs

@@ -121,6 +121,36 @@ macro_rules! s_no_extra_traits {
     );
 }
 
+#[allow(unused_macros)]
+macro_rules! e {
+    ($($(#[$attr:meta])* pub enum $i:ident { $($field:tt)* })*) => ($(
+        __item! {
+            #[cfg_attr(feature = "extra_traits", derive(Debug, Eq, Hash, PartialEq))]
+            $(#[$attr])*
+            pub enum $i { $($field)* }
+        }
+        impl ::Copy for $i {}
+        impl ::Clone for $i {
+            fn clone(&self) -> $i { *self }
+        }
+    )*);
+}
+
+#[allow(unused_macros)]
+macro_rules! s_paren {
+    ($($(#[$attr:meta])* pub struct $i:ident ( $($field:tt)* ); )* ) => ($(
+        __item! {
+            #[cfg_attr(feature = "extra_traits", derive(Debug, Eq, Hash, PartialEq))]
+            $(#[$attr])*
+            pub struct $i ( $($field)* );
+        }
+        impl ::Copy for $i {}
+        impl ::Clone for $i {
+            fn clone(&self) -> $i { *self }
+        }
+    )*);
+}
+
 // This is a pretty horrible hack to allow us to conditionally mark
 // some functions as 'const', without requiring users of this macro
 // to care about the "const-extern-fn" feature.