libsyntax: Fix duplication of items that occurs if #[deriving_eq] is applied to a non-enum/non-struct. r=brson

pcwalton · pcwalton · commit b053f0b5e682 · 2012-11-21T10:27:30.000-08:00
diff --git a/src/libsyntax/ext/deriving.rs b/src/libsyntax/ext/deriving.rs
@@ -49,7 +49,7 @@ pub fn expand_deriving_eq(cx: ext_ctxt,
                                                      enum_definition,
                                                      item.ident));
             }
-            _ => result.push(copy *item)    // XXX: Don't copy.
+            _ => ()
         }
     }
     dvec::unwrap(move result)

Original file line number	Diff line number	Diff line change
`@@ -49,7 +49,7 @@ pub fn expand_deriving_eq(cx: ext_ctxt,`
`49`	`49`	`enum_definition,`
`50`	`50`	`item.ident));`
`51`	`51`	`}`
`52`		`- _ => result.push(copy *item) // XXX: Don't copy.`
	`52`	`+ _ => ()`
`53`	`53`	`}`
`54`	`54`	`}`
`55`	`55`	`dvec::unwrap(move result)`