Merge branch 'master' into escape-reason-docs

3 files changed, 46 insertions, 19 deletions

diff --git a/src/libcoretest/cell.rs b/src/libcoretest/cell.rs
index a7c230ba979..724a312ea79 100644
--- a/src/libcoretest/cell.rs
+++ b/src/libcoretest/cell.rs
@@ -59,22 +59,22 @@ fn double_imm_borrow() {
 fn no_mut_then_imm_borrow() {
     let x = RefCell::new(0);
     let _b1 = x.borrow_mut();
-    assert_eq!(x.borrow_state(), BorrowState::Writing);
+    assert!(x.try_borrow().is_err());
 }
 
 #[test]
 fn no_imm_then_borrow_mut() {
     let x = RefCell::new(0);
     let _b1 = x.borrow();
-    assert_eq!(x.borrow_state(), BorrowState::Reading);
+    assert!(x.try_borrow_mut().is_err());
 }
 
 #[test]
 fn no_double_borrow_mut() {
     let x = RefCell::new(0);
-    assert_eq!(x.borrow_state(), BorrowState::Unused);
+    assert!(x.try_borrow().is_ok());
     let _b1 = x.borrow_mut();
-    assert_eq!(x.borrow_state(), BorrowState::Writing);
+    assert!(x.try_borrow().is_err());
 }
 
 #[test]
@@ -102,7 +102,8 @@ fn double_borrow_single_release_no_borrow_mut() {
     {
         let _b2 = x.borrow();
     }
-    assert_eq!(x.borrow_state(), BorrowState::Reading);
+    assert!(x.try_borrow().is_ok());
+    assert!(x.try_borrow_mut().is_err());
 }
 
 #[test]
@@ -119,14 +120,18 @@ fn ref_clone_updates_flag() {
     let x = RefCell::new(0);
     {
         let b1 = x.borrow();
-        assert_eq!(x.borrow_state(), BorrowState::Reading);
+        assert!(x.try_borrow().is_ok());
+        assert!(x.try_borrow_mut().is_err());
         {
             let _b2 = Ref::clone(&b1);
-            assert_eq!(x.borrow_state(), BorrowState::Reading);
+            assert!(x.try_borrow().is_ok());
+            assert!(x.try_borrow_mut().is_err());
         }
-        assert_eq!(x.borrow_state(), BorrowState::Reading);
+        assert!(x.try_borrow().is_ok());
+        assert!(x.try_borrow_mut().is_err());
     }
-    assert_eq!(x.borrow_state(), BorrowState::Unused);
+    assert!(x.try_borrow().is_ok());
+    assert!(x.try_borrow_mut().is_ok());
 }
 
 #[test]
@@ -134,15 +139,19 @@ fn ref_map_does_not_update_flag() {
     let x = RefCell::new(Some(5));
     {
         let b1: Ref<Option<u32>> = x.borrow();
-        assert_eq!(x.borrow_state(), BorrowState::Reading);
+        assert!(x.try_borrow().is_ok());
+        assert!(x.try_borrow_mut().is_err());
         {
             let b2: Ref<u32> = Ref::map(b1, |o| o.as_ref().unwrap());
             assert_eq!(*b2, 5);
-            assert_eq!(x.borrow_state(), BorrowState::Reading);
+            assert!(x.try_borrow().is_ok());
+            assert!(x.try_borrow_mut().is_err());
         }
-        assert_eq!(x.borrow_state(), BorrowState::Unused);
+        assert!(x.try_borrow().is_ok());
+        assert!(x.try_borrow_mut().is_ok());
     }
-    assert_eq!(x.borrow_state(), BorrowState::Unused);
+    assert!(x.try_borrow().is_ok());
+    assert!(x.try_borrow_mut().is_ok());
 }
 
 #[test]
@@ -247,5 +256,3 @@ fn refcell_ref_coercion() {
         assert_eq!(&*coerced, comp);
     }
 }
-
-
diff --git a/src/libcoretest/lib.rs b/src/libcoretest/lib.rs
index 92fb01e535c..d12616a97a6 100644
--- a/src/libcoretest/lib.rs
+++ b/src/libcoretest/lib.rs
@@ -10,9 +10,7 @@
 
 #![deny(warnings)]
 
-#![feature(borrow_state)]
 #![feature(box_syntax)]
-#![feature(cell_extras)]
 #![feature(char_escape_debug)]
 #![feature(const_fn)]
 #![feature(core_private_bignum)]
@@ -32,10 +30,9 @@
 #![feature(try_from)]
 #![feature(unicode)]
 #![feature(unique)]
-#![feature(iter_max_by)]
-#![feature(iter_min_by)]
 #![feature(ordering_chaining)]
 #![feature(result_unwrap_or_default)]
+#![feature(ptr_unaligned)]
 
 extern crate core;
 extern crate test;
diff --git a/src/libcoretest/ptr.rs b/src/libcoretest/ptr.rs
index f7fe61896f8..7f6f472bfbb 100644
--- a/src/libcoretest/ptr.rs
+++ b/src/libcoretest/ptr.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 use core::ptr::*;
+use core::cell::RefCell;
 
 #[test]
 fn test() {
@@ -189,3 +190,25 @@ pub fn test_variadic_fnptr() {
     let mut s = SipHasher::new();
     assert_eq!(p.hash(&mut s), q.hash(&mut s));
 }
+
+#[test]
+fn write_unaligned_drop() {
+    thread_local! {
+        static DROPS: RefCell<Vec<u32>> = RefCell::new(Vec::new());
+    }
+
+    struct Dropper(u32);
+
+    impl Drop for Dropper {
+        fn drop(&mut self) {
+            DROPS.with(|d| d.borrow_mut().push(self.0));
+        }
+    }
+
+    {
+        let c = Dropper(0);
+        let mut t = Dropper(1);
+        unsafe { write_unaligned(&mut t, c); }
+    }
+    DROPS.with(|d| assert_eq!(*d.borrow(), [0]));
+}