---

yaml
---
r: 23757
b: refs/heads/master
c: f6d50d8
h: refs/heads/master
i:
  23755: f63e281
v: v3

Author: pcwalton

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: d1554106742fa8c0a99cac1adc5f65aa0ce0ac62
+refs/heads/master: f6d50d866a5f067d292875193ae5f30a756e6ad3
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: cd6f24f9d14ac90d167386a56e7a6ac1f0318195
 refs/heads/try: ffbe0e0e00374358b789b0037bcb3a577cd218be

trunk/src/libcore/str.rs

@@ -2160,8 +2160,8 @@ trait StrSlice {
     fn split_str(sep: &a/str) -> ~[~str];
     fn starts_with(needle: &a/str) -> bool;
     fn substr(begin: uint, n: uint) -> ~str;
-    fn to_lower() -> ~str;
-    fn to_upper() -> ~str;
+    pure fn to_lower() -> ~str;
+    pure fn to_upper() -> ~str;
     fn escape_default() -> ~str;
     fn escape_unicode() -> ~str;
     pure fn to_unique() -> ~str;
@@ -2262,10 +2262,10 @@ impl &str: StrSlice {
     fn substr(begin: uint, n: uint) -> ~str { substr(self, begin, n) }
     /// Convert a string to lowercase
     #[inline]
-    fn to_lower() -> ~str { to_lower(self) }
+    pure fn to_lower() -> ~str { to_lower(self) }
     /// Convert a string to uppercase
     #[inline]
-    fn to_upper() -> ~str { to_upper(self) }
+    pure fn to_upper() -> ~str { to_upper(self) }
     /// Escape each char in `s` with char::escape_default.
     #[inline]
     fn escape_default() -> ~str { escape_default(self) }