---

yaml
---
r: 35945
b: refs/heads/try2
c: e9caa3f
h: refs/heads/master
i:
  35943: 725e22f
v: v3

Author: Dretch

[refs]

@@ -5,7 +5,7 @@ refs/heads/snap-stage3: eb8fd119c65c67f3b1b8268cc7341c22d39b7b61
 refs/heads/try: d324a424d8f84b1eb049b12cf34182bda91b0024
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
-refs/heads/try2: 9406f8101dd32b4458b8c042a1bfb1bb150a2276
+refs/heads/try2: e9caa3fe2e291b7f2cea624bfd0dc879e95fe382
 refs/heads/incoming: d9317a174e434d4c99fc1a37fd7dc0d2f5328d37
 refs/heads/dist-snap: 22efa39382d41b084fde1719df7ae8ce5697d8c9
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596

branches/try2/src/libcore/str.rs

@@ -1869,6 +1869,11 @@ pub pure fn escape_unicode(s: &str) -> ~str {
     move out
 }
 
+extern mod rustrt {
+    #[rust_stack]
+    pure fn upcall_str_new_shared(cstr: *libc::c_char, len: size_t) -> @str;
+}
+
 /// Unsafe operations
 pub mod raw {
 
@@ -2090,6 +2095,7 @@ pub trait StrSlice {
     pure fn trim_left() -> ~str;
     pure fn trim_right() -> ~str;
     pure fn to_unique() -> ~str;
+    pure fn to_managed() -> @str;
     pure fn char_at(i: uint) -> char;
 }
 
@@ -2213,6 +2219,14 @@ impl &str: StrSlice {
     #[inline]
     pure fn to_unique() -> ~str { self.slice(0, self.len()) }
 
+    #[inline]
+    pure fn to_managed() -> @str {
+        do str::as_buf(self) |p, _len| {
+            rustrt::upcall_str_new_shared(p as *libc::c_char,
+                                          self.len() as size_t)
+        }
+    }
+
     #[inline]
     pure fn char_at(i: uint) -> char { char_at(self, i) }
 }
@@ -3190,4 +3204,10 @@ mod tests {
         assert escape_default(~"\U0001d4ea\r") == ~"\\U0001d4ea\\r";
     }
 
+    #[test]
+    fn test_to_managed() {
+        assert (~"abc").to_managed() == @"abc";
+        assert view("abcdef", 1, 5).to_managed() == @"bcde";
+    }
+
 }