---

yaml
---
r: 23480
b: refs/heads/master
c: c87e9a5
h: refs/heads/master
v: v3

Author: msullivan

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: b2aeb314519f69bc949327123d2f6ec4dcd0b9ec
+refs/heads/master: c87e9a5815ba4084ca2419eb39786b9bf6d45319
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: cd6f24f9d14ac90d167386a56e7a6ac1f0318195
 refs/heads/try: ffbe0e0e00374358b789b0037bcb3a577cd218be

trunk/src/libcore/at_vec.rs

@@ -52,14 +52,8 @@ pure fn capacity<T>(&&v: @[const T]) -> uint {
 #[inline(always)]
 pure fn build_sized<A>(size: uint, builder: fn(push: pure fn(+A))) -> @[A] {
     let mut vec = @[];
-    unsafe {
-        unsafe::reserve(vec, size);
-        // This is an awful hack to be able to make the push function
-        // pure. Is there a better way?
-        ::unsafe::reinterpret_cast::
-            <fn(push: pure fn(+A)), fn(push: fn(+A))>
-            (builder)(|+x| unsafe::push(vec, x));
-    }
+    unsafe { unsafe::reserve(vec, size); }
+    builder(|+x| unsafe { unsafe::push(vec, x) });
     return vec;
 }
 

trunk/src/libcore/vec.rs

@@ -234,14 +234,8 @@ pure fn from_slice<T: copy>(t: &[T]) -> ~[T] {
 #[inline(always)]
 pure fn build_sized<A>(size: uint, builder: fn(push: pure fn(+A))) -> ~[A] {
     let mut vec = ~[];
-    unsafe {
-        reserve(vec, size);
-        // This is an awful hack to be able to make the push function
-        // pure. Is there a better way?
-        ::unsafe::reinterpret_cast::
-            <fn(push: pure fn(+A)), fn(push: fn(+A))>
-            (builder)(|+x| push(vec, x));
-    }
+    unchecked { reserve(vec, size); }
+    builder(|+x| unchecked { push(vec, x) });
     return vec;
 }