From 07edf9036715bde27cc7bbc0feb3ee6e461130da Mon Sep 17 00:00:00 2001
From: Gareth Daniel Smith <garethdanielsmith@gmail.com>
Date: Sat, 6 Oct 2012 11:11:06 +0100
Subject: Implement to_managed without using an upcall function, as suggested
 by brson.

---
 src/libcore/str.rs | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

(limited to 'src/libcore')

diff --git a/src/libcore/str.rs b/src/libcore/str.rs
index e2e7b15b1d7..447cb59acf8 100644
--- a/src/libcore/str.rs
+++ b/src/libcore/str.rs
@@ -1869,11 +1869,6 @@ 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 {
 
@@ -2221,10 +2216,10 @@ impl &str: StrSlice {
 
     #[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)
-        }
+        let v = at_vec::from_fn(self.len() + 1, |i| {
+            if i == self.len() { 0 } else { self[i] }
+        });
+        unsafe { ::cast::transmute(v) }
     }
 
     #[inline]
-- 
cgit 1.4.1-3-g733a5