libterm: use `#[deriving(Copy)]`

src/libterm/lib.rs

@@ -165,13 +165,13 @@ pub mod color {
 /// Terminal attributes
 pub mod attr {
     pub use self::Attr::*;
-    use std::kinds::Copy;
 
     /// Terminal attributes for use with term.attr().
     ///
     /// Most attributes can only be turned on and must be turned off with term.reset().
     /// The ones that can be turned off explicitly take a boolean value.
     /// Color is also represented as an attribute for convenience.
+    #[deriving(Copy)]
     pub enum Attr {
         /// Bold (or possibly bright) mode
         Bold,
@@ -194,8 +194,6 @@ pub enum Attr {
         /// Convenience attribute to set the background color
         BackgroundColor(super::color::Color)
     }
-
-    impl Copy for Attr {}
 }
 
 /// A terminal with similar capabilities to an ANSI Terminal

src/libterm/terminfo/parm.rs

@@ -16,7 +16,7 @@
 use self::FormatOp::*;
 use std::mem::replace;
 
-#[deriving(PartialEq)]
+#[deriving(Copy, PartialEq)]
 enum States {
     Nothing,
     Percent,
@@ -33,17 +33,13 @@ enum States {
     SeekIfEndPercent(int)
 }
 
-impl Copy for States {}
-
-#[deriving(PartialEq)]
+#[deriving(Copy, PartialEq)]
 enum FormatState {
     FormatStateFlags,
     FormatStateWidth,
     FormatStatePrecision
 }
 
-impl Copy for FormatState {}
-
 /// Types of parameters a capability can use
 #[allow(missing_docs)]
 #[deriving(Clone)]
@@ -446,7 +442,7 @@ pub fn expand(cap: &[u8], params: &[Param], vars: &mut Variables)
     Ok(output)
 }
 
-#[deriving(PartialEq)]
+#[deriving(Copy, PartialEq)]
 struct Flags {
     width: uint,
     precision: uint,
@@ -456,8 +452,6 @@ struct Flags {
     space: bool
 }
 
-impl Copy for Flags {}
-
 impl Flags {
     fn new() -> Flags {
         Flags{ width: 0, precision: 0, alternate: false,
@@ -465,6 +459,7 @@ fn new() -> Flags {
     }
 }
 
+#[deriving(Copy)]
 enum FormatOp {
     FormatDigit,
     FormatOctal,
@@ -473,8 +468,6 @@ enum FormatOp {
     FormatString
 }
 
-impl Copy for FormatOp {}
-
 impl FormatOp {
     fn from_char(c: char) -> FormatOp {
         match c {