From fe6d6863b20495995924e6dd328746df617571d5 Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Mon, 8 Apr 2013 21:37:38 -0500
Subject: use unstable::finally::Finally instead of reimplementing it

---
 Makefile     |  2 +-
 src/guard.rs | 14 --------------
 src/ios.rs   |  6 ++++--
 src/term.rs  |  1 -
 4 files changed, 5 insertions(+), 18 deletions(-)
 delete mode 100644 src/guard.rs

diff --git a/Makefile b/Makefile
index 1254cd0..1315c93 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 RUSTC = rustc
 
 MAIN_SOURCE = src/term.rs
-OTHER_SOURCES = src/hexes.rs src/ios.rs src/info.rs src/util.rs src/trie.rs src/guard.rs
+OTHER_SOURCES = src/hexes.rs src/ios.rs src/info.rs src/util.rs src/trie.rs
 TESTS = bin/termios bin/termios2 bin/termios3 bin/rl bin/password bin/attrs bin/tput
 
 all: build tests
diff --git a/src/guard.rs b/src/guard.rs
deleted file mode 100644
index 75a28aa..0000000
--- a/src/guard.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-pub fn guard<T> (finally: ~fn (), body: &fn () -> T) -> T {
-    let _guard = Guard { finally: finally };
-    body()
-}
-
-struct Guard {
-    priv finally: ~fn (),
-}
-
-impl Drop for Guard {
-    fn finalize (&self) {
-        (self.finally)();
-    }
-}
diff --git a/src/ios.rs b/src/ios.rs
index f1e6e80..6f57a51 100644
--- a/src/ios.rs
+++ b/src/ios.rs
@@ -1,5 +1,5 @@
 use core::libc::{c_int,c_void};
-use guard::guard;
+use core::unstable::finally::Finally;
 
 /**
  * Put the terminal into cooked mode.
@@ -46,8 +46,10 @@ pub fn echo (enable: bool) -> int {
  */
 pub fn preserve<T> (body: &fn () -> T) -> T {
     let orig = unsafe { c::get() };
-    do guard(|| { unsafe { c::set(orig) } }) {
+    do(|| {
         body()
+    }).finally {
+        unsafe { c::set(orig) };
     }
 }
 
diff --git a/src/term.rs b/src/term.rs
index 3f9690e..e876dfa 100644
--- a/src/term.rs
+++ b/src/term.rs
@@ -12,4 +12,3 @@ pub mod info;
 pub mod ios;
 mod trie;
 mod util;
-mod guard;
-- 
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