---

yaml
---
r: 234045
b: refs/heads/beta
c: 01b9cc5
h: refs/heads/master
i:
  234043: 1ef302c
v: v3

Author: bors

[refs]

@@ -23,7 +23,7 @@ refs/tags/0.9: 36870b185fc5f5486636d4515f0e22677493f225
 refs/tags/0.10: ac33f2b15782272ae348dbd7b14b8257b2148b5a
 refs/tags/0.11.0: e1247cb1d0d681be034adb4b558b5a0c0d5720f9
 refs/tags/0.12.0: f0c419429ef30723ceaf6b42f9b5a2aeb5d2e2d1
-refs/heads/beta: c34f3506645e4ce4ba2b0f34a437793a14018d13
+refs/heads/beta: 01b9cc58ba0c91ec265d8c1ad9225b2ca777464e
 refs/tags/1.0.0-alpha: e42bd6d93a1d3433c486200587f8f9e12590a4d7
 refs/heads/tmp: 370fe2786109360f7c35b8ba552b83b773dd71d6
 refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f

branches/beta/src/doc/nomicon/vec-drain.md

@@ -129,14 +129,16 @@ impl<'a, T> Drop for Drain<'a, T> {
 
 impl<T> Vec<T> {
     pub fn drain(&mut self) -> Drain<T> {
-        // this is a mem::forget safety thing. If Drain is forgotten, we just
-        // leak the whole Vec's contents. Also we need to do this eventually
-        // anyway, so why not do it now?
-        self.len = 0;
-
         unsafe {
+            let iter = RawValIter::new(&self);
+
+            // this is a mem::forget safety thing. If Drain is forgotten, we just
+            // leak the whole Vec's contents. Also we need to do this *eventually*
+            // anyway, so why not do it now?
+            self.len = 0;
+
             Drain {
-                iter: RawValIter::new(&self),
+                iter: iter,
                 vec: PhantomData,
             }
         }

branches/beta/src/doc/nomicon/vec-final.md

@@ -155,13 +155,16 @@ impl<T> Vec<T> {
     }
 
     pub fn drain(&mut self) -> Drain<T> {
-        // this is a mem::forget safety thing. If this is forgotten, we just
-        // leak the whole Vec's contents. Also we need to do this *eventually*
-        // anyway, so why not do it now?
-        self.len = 0;
         unsafe {
+            let iter = RawValIter::new(&self);
+
+            // this is a mem::forget safety thing. If Drain is forgotten, we just
+            // leak the whole Vec's contents. Also we need to do this *eventually*
+            // anyway, so why not do it now?
+            self.len = 0;
+
             Drain {
-                iter: RawValIter::new(&self),
+                iter: iter,
                 vec: PhantomData,
             }
         }

branches/beta/src/doc/trpl/macros.md

@@ -313,7 +313,7 @@ fn main() {
 }
 ```
 
-This works because Rust has a [hygienic macro system][]. Each macro expansion
+This works because Rust has a [hygienic macro system][https://en.wikipedia.org/wiki/Hygienic_macro]. Each macro expansion
 happens in a distinct ‘syntax context’, and each variable is tagged with the
 syntax context where it was introduced. It’s as though the variable `state`
 inside `main` is painted a different "color" from the variable `state` inside

branches/beta/src/librustc/middle/region.rs

@@ -317,7 +317,10 @@ impl RegionMaps {
         self.intern_code_extent(e, DUMMY_CODE_EXTENT)
     }
     pub fn lookup_code_extent(&self, e: CodeExtentData) -> CodeExtent {
-        self.code_extent_interner.borrow()[&e]
+        match self.code_extent_interner.borrow().get(&e) {
+            Some(&d) => d,
+            None => panic!("unknown code extent {:?}", e)
+        }
     }
     pub fn node_extent(&self, n: ast::NodeId) -> CodeExtent {
         self.lookup_code_extent(CodeExtentData::Misc(n))
@@ -1069,7 +1072,7 @@ fn resolve_item(visitor: &mut RegionResolutionVisitor, item: &hir::Item) {
 }
 
 fn resolve_fn(visitor: &mut RegionResolutionVisitor,
-              _: FnKind,
+              kind: FnKind,
               decl: &hir::FnDecl,
               body: &hir::Block,
               sp: Span,
@@ -1102,6 +1105,7 @@ fn resolve_fn(visitor: &mut RegionResolutionVisitor,
     };
 
     visit::walk_fn_decl(visitor, decl);
+    visit::walk_fn_kind(visitor, kind);
 
     // The body of the every fn is a root scope.
     visitor.cx = Context {

branches/beta/src/librustc_front/visit.rs

@@ -580,13 +580,8 @@ pub fn walk_fn_decl<'v, V: Visitor<'v>>(visitor: &mut V, function_declaration: &
     walk_fn_ret_ty(visitor, &function_declaration.output)
 }
 
-pub fn walk_fn<'v, V: Visitor<'v>>(visitor: &mut V,
-                                   function_kind: FnKind<'v>,
-                                   function_declaration: &'v FnDecl,
-                                   function_body: &'v Block,
-                                   _span: Span) {
-    walk_fn_decl(visitor, function_declaration);
-
+pub fn walk_fn_kind<'v, V: Visitor<'v>>(visitor: &mut V,
+                                        function_kind: FnKind<'v>) {
     match function_kind {
         FnKind::ItemFn(_, generics, _, _, _, _) => {
             visitor.visit_generics(generics);
@@ -597,7 +592,15 @@ pub fn walk_fn<'v, V: Visitor<'v>>(visitor: &mut V,
         }
         FnKind::Closure(..) => {}
     }
+}
 
+pub fn walk_fn<'v, V: Visitor<'v>>(visitor: &mut V,
+                                   function_kind: FnKind<'v>,
+                                   function_declaration: &'v FnDecl,
+                                   function_body: &'v Block,
+                                   _span: Span) {
+    walk_fn_decl(visitor, function_declaration);
+    walk_fn_kind(visitor, function_kind);
     visitor.visit_block(function_body)
 }
 

branches/beta/src/test/run-pass/issue-28181.rs

@@ -0,0 +1,15 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+fn bar<F>(f: F) -> usize where F: Fn([usize; 1]) -> usize { f([2]) }
+
+fn main() {
+    bar(|u| { u[0] });
+}