Avoid struct-like enum variants.

They’re considered "unstable" enough as a language feature to be behind
a flag, and probably not worth it in this case.

Author: SimonSapin

ast.rs

@@ -36,7 +36,7 @@ pub enum ComponentValue {
     Number(NumericValue),
     Percentage(NumericValue),
     Dimension(NumericValue, ~str),
-    UnicodeRange { start: u32, end: u32 },
+    UnicodeRange(u32, u32),  // (start, end) of range
     WhiteSpace,
     Colon,  // :
     Semicolon,  // ;

lib.rs

@@ -4,7 +4,7 @@
 
 #[link(name = "cssparser", vers = "0.1")];
 
-#[feature(globs, macro_rules, struct_variant)];
+#[feature(globs, macro_rules)];
 
 extern mod extra;
 

tests.rs

@@ -325,8 +325,8 @@ impl ToJson for ComponentValue {
             Dimension(ref value, ref unit)
             => JList(~[JString(~"dimension")] + numeric(value) + ~[unit.to_json()]),
 
-            UnicodeRange { start: s, end: e }
-            => JList(~[JString(~"unicode-range"), s.to_json(), e.to_json()]),
+            UnicodeRange(start, end)
+            => JList(~[JString(~"unicode-range"), start.to_json(), end.to_json()]),
 
             WhiteSpace => JString(~" "),
             Colon => JString(~":"),

tokenizer.rs

@@ -565,7 +565,7 @@ fn consume_unicode_range(tokenizer: &mut Tokenizer) -> ComponentValue {
         }
         end = if hex.len() > 0 { num::from_str_radix(hex, 16).unwrap() } else { start }
     }
-    UnicodeRange {start: start, end: end}
+    UnicodeRange(start, end)
 }