---

yaml
---
r: 54544
b: refs/heads/snap-stage3
c: e081c17
h: refs/heads/master
v: v3

Author: gareth

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: 5f13e9ccc2e3328d4cd8ca49f84e6840dd998346
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
-refs/heads/snap-stage3: 7c2a8c4ac2c89a174fdcf4cc68e17e7639a913c6
+refs/heads/snap-stage3: e081c17805203b5e87073e2c766280a84b08e52c
 refs/heads/try: 8eb2bab100b42f0ba751552d8eff00eb2134c55a
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b

branches/snap-stage3/src/etc/vim/syntax/rust.vim

@@ -110,11 +110,8 @@ syn match     rustFloat       display "\<[0-9][0-9_]*\.[0-9_]\+\%([eE][+-]\=[0-9
 syn match     rustLifetime    display "\'\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*"
 syn match   rustCharacter   "'\([^'\\]\|\\\(['nrt\\\"]\|x\x\{2}\|u\x\{4}\|U\x\{8}\)\)'"
 
-syn region    rustCommentDoc  start="/\*\*" end="\*/"
-syn region    rustCommentDoc  start="///" skip="\\$" end="$" keepend
-syn match     rustComment     "/\*\*/"
-syn region    rustComment     start="/\*[^\*]" end="\*/" contains=rustTodo
-syn region    rustComment     start="//[^/]" skip="\\$" end="$" contains=rustTodo keepend
+syn region    rustComment     start="/\*" end="\*/" contains=rustComment,rustTodo
+syn region    rustComment     start="//" skip="\\$" end="$" contains=rustTodo keepend
 
 syn keyword rustTodo contained TODO FIXME XXX NB
 
@@ -137,7 +134,6 @@ hi def link rustConditional   Conditional
 hi def link rustIdentifier    Identifier
 hi def link rustModPath       Include
 hi def link rustFuncName      Function
-hi def link rustCommentDoc    SpecialComment
 hi def link rustComment       Comment
 hi def link rustMacro         Macro
 hi def link rustType          Type

branches/snap-stage3/src/libcore/run.rs

@@ -172,6 +172,14 @@ fn with_dirp<T>(d: &Option<~str>,
     }
 }
 
+/// helper function that closes non-NULL files and then makes them NULL
+priv unsafe fn fclose_and_null(f: &mut *libc::FILE) {
+    if *f != 0 as *libc::FILE {
+        libc::fclose(*f);
+        *f = 0 as *libc::FILE;
+    }
+}
+
 /**
  * Spawns a process and waits for it to terminate
  *
@@ -249,8 +257,8 @@ pub fn start_program(prog: &str, args: &[~str]) -> @Program {
     fn destroy_repr(r: &mut ProgRepr) {
         unsafe {
             finish_repr(&mut *r);
-            libc::fclose(r.out_file);
-            libc::fclose(r.err_file);
+            fclose_and_null(&mut r.out_file);
+            fclose_and_null(&mut r.err_file);
         }
     }
     struct ProgRes {
@@ -507,6 +515,19 @@ mod tests {
         assert!(status == 1);
     }
 
+    #[test]
+    pub fn test_destroy_once() {
+        let mut p = run::start_program("echo", []);
+        p.destroy(); // this shouldn't crash (and nor should the destructor)
+    }
+
+    #[test]
+    pub fn test_destroy_twice() {
+        let mut p = run::start_program("echo", []);
+        p.destroy(); // this shouldnt crash...
+        p.destroy(); // ...and nor should this (and nor should the destructor)
+    }
+
 }
 
 // Local Variables: