From a040b8005f37b94f3394cc3c6ab7058717830661 Mon Sep 17 00:00:00 2001
From: John Clements <clements@racket-lang.org>
Date: Thu, 7 Mar 2013 14:40:34 -0800
Subject: [PATCH] add deriving_eq for tokens

---
 src/libsyntax/parse/token.rs | 275 +----------------------------------
 1 file changed, 2 insertions(+), 273 deletions(-)

diff --git a/src/libsyntax/parse/token.rs b/src/libsyntax/parse/token.rs
index f86d7c7f13540..81aacbf173d5e 100644
--- a/src/libsyntax/parse/token.rs
+++ b/src/libsyntax/parse/token.rs
@@ -18,7 +18,6 @@ use util::interner;
 
 use core::cast;
 use core::char;
-use core::cmp;
 use core::str;
 use core::task;
 use std::oldmap::HashMap;
@@ -41,6 +40,7 @@ pub enum binop {
 
 #[auto_encode]
 #[auto_decode]
+#[deriving_eq]
 pub enum Token {
     /* Expression-operator symbols. */
     EQ,
@@ -103,6 +103,7 @@ pub enum Token {
 
 #[auto_encode]
 #[auto_decode]
+#[deriving_eq]
 /// For interpolation during macro expansion.
 pub enum nonterminal {
     nt_item(@ast::item),
@@ -522,278 +523,6 @@ pub fn reserved_keyword_table() -> HashMap<~str, ()> {
 }
 
 
-impl cmp::Eq for Token {
-    pure fn eq(&self, other: &Token) -> bool {
-        match (*self) {
-            EQ => {
-                match (*other) {
-                    EQ => true,
-                    _ => false
-                }
-            }
-            LT => {
-                match (*other) {
-                    LT => true,
-                    _ => false
-                }
-            }
-            LE => {
-                match (*other) {
-                    LE => true,
-                    _ => false
-                }
-            }
-            EQEQ => {
-                match (*other) {
-                    EQEQ => true,
-                    _ => false
-                }
-            }
-            NE => {
-                match (*other) {
-                    NE => true,
-                    _ => false
-                }
-            }
-            GE => {
-                match (*other) {
-                    GE => true,
-                    _ => false
-                }
-            }
-            GT => {
-                match (*other) {
-                    GT => true,
-                    _ => false
-                }
-            }
-            ANDAND => {
-                match (*other) {
-                    ANDAND => true,
-                    _ => false
-                }
-            }
-            OROR => {
-                match (*other) {
-                    OROR => true,
-                    _ => false
-                }
-            }
-            NOT => {
-                match (*other) {
-                    NOT => true,
-                    _ => false
-                }
-            }
-            TILDE => {
-                match (*other) {
-                    TILDE => true,
-                    _ => false
-                }
-            }
-            BINOP(e0a) => {
-                match (*other) {
-                    BINOP(e0b) => e0a == e0b,
-                    _ => false
-                }
-            }
-            BINOPEQ(e0a) => {
-                match (*other) {
-                    BINOPEQ(e0b) => e0a == e0b,
-                    _ => false
-                }
-            }
-            AT => {
-                match (*other) {
-                    AT => true,
-                    _ => false
-                }
-            }
-            DOT => {
-                match (*other) {
-                    DOT => true,
-                    _ => false
-                }
-            }
-            DOTDOT => {
-                match (*other) {
-                    DOTDOT => true,
-                    _ => false
-                }
-            }
-            COMMA => {
-                match (*other) {
-                    COMMA => true,
-                    _ => false
-                }
-            }
-            SEMI => {
-                match (*other) {
-                    SEMI => true,
-                    _ => false
-                }
-            }
-            COLON => {
-                match (*other) {
-                    COLON => true,
-                    _ => false
-                }
-            }
-            MOD_SEP => {
-                match (*other) {
-                    MOD_SEP => true,
-                    _ => false
-                }
-            }
-            RARROW => {
-                match (*other) {
-                    RARROW => true,
-                    _ => false
-                }
-            }
-            LARROW => {
-                match (*other) {
-                    LARROW => true,
-                    _ => false
-                }
-            }
-            DARROW => {
-                match (*other) {
-                    DARROW => true,
-                    _ => false
-                }
-            }
-            FAT_ARROW => {
-                match (*other) {
-                    FAT_ARROW => true,
-                    _ => false
-                }
-            }
-            LPAREN => {
-                match (*other) {
-                    LPAREN => true,
-                    _ => false
-                }
-            }
-            RPAREN => {
-                match (*other) {
-                    RPAREN => true,
-                    _ => false
-                }
-            }
-            LBRACKET => {
-                match (*other) {
-                    LBRACKET => true,
-                    _ => false
-                }
-            }
-            RBRACKET => {
-                match (*other) {
-                    RBRACKET => true,
-                    _ => false
-                }
-            }
-            LBRACE => {
-                match (*other) {
-                    LBRACE => true,
-                    _ => false
-                }
-            }
-            RBRACE => {
-                match (*other) {
-                    RBRACE => true,
-                    _ => false
-                }
-            }
-            POUND => {
-                match (*other) {
-                    POUND => true,
-                    _ => false
-                }
-            }
-            DOLLAR => {
-                match (*other) {
-                    DOLLAR => true,
-                    _ => false
-                }
-            }
-            LIT_INT(e0a, e1a) => {
-                match (*other) {
-                    LIT_INT(e0b, e1b) => e0a == e0b && e1a == e1b,
-                    _ => false
-                }
-            }
-            LIT_UINT(e0a, e1a) => {
-                match (*other) {
-                    LIT_UINT(e0b, e1b) => e0a == e0b && e1a == e1b,
-                    _ => false
-                }
-            }
-            LIT_INT_UNSUFFIXED(e0a) => {
-                match (*other) {
-                    LIT_INT_UNSUFFIXED(e0b) => e0a == e0b,
-                    _ => false
-                }
-            }
-            LIT_FLOAT(e0a, e1a) => {
-                match (*other) {
-                    LIT_FLOAT(e0b, e1b) => e0a == e0b && e1a == e1b,
-                    _ => false
-                }
-            }
-            LIT_FLOAT_UNSUFFIXED(e0a) => {
-                match (*other) {
-                    LIT_FLOAT_UNSUFFIXED(e0b) => e0a == e0b,
-                    _ => false
-                }
-            }
-            LIT_STR(e0a) => {
-                match (*other) {
-                    LIT_STR(e0b) => e0a == e0b,
-                    _ => false
-                }
-            }
-            IDENT(e0a, e1a) => {
-                match (*other) {
-                    IDENT(e0b, e1b) => e0a == e0b && e1a == e1b,
-                    _ => false
-                }
-            }
-            LIFETIME(e0a) => {
-                match (*other) {
-                    LIFETIME(e0b) => e0a == e0b,
-                    _ => false
-                }
-            }
-            UNDERSCORE => {
-                match (*other) {
-                    UNDERSCORE => true,
-                    _ => false
-                }
-            }
-            INTERPOLATED(_) => {
-                match (*other) {
-                    INTERPOLATED(_) => true,
-                    _ => false
-                }
-            }
-            DOC_COMMENT(e0a) => {
-                match (*other) {
-                    DOC_COMMENT(e0b) => e0a == e0b,
-                    _ => false
-                }
-            }
-            EOF => {
-                match (*other) {
-                    EOF => true,
-                    _ => false
-                }
-            }
-        }
-    }
-    pure fn ne(&self, other: &Token) -> bool { !(*self).eq(other) }
-}
-
 // Local Variables:
 // fill-column: 78;
 // indent-tabs-mode: nil