core: clean up tests (mostly unused unsafe blocks)

src/libcore/comm.rs

@@ -112,8 +112,6 @@ pub mod streamp {
 
     #[allow(non_camel_case_types)]
     pub mod server {
-        priv use core::kinds::Owned;
-
         #[allow(non_camel_case_types)]
         pub type Open<T> = ::core::pipes::RecvPacket<super::Open<T>>;
     }
@@ -388,8 +386,6 @@ pub mod oneshot {
 
     #[allow(non_camel_case_types)]
     pub mod server {
-        priv use core::kinds::Owned;
-
         #[allow(non_camel_case_types)]
         pub type Oneshot<T> =
             ::core::pipes::RecvPacketBuffered<super::Oneshot<T>,

src/libcore/rt/sched/local_sched.rs

@@ -66,18 +66,16 @@ pub fn borrow(f: &fn(&mut Scheduler)) {
 /// Because this leaves the Scheduler in thread-local storage it is possible
 /// For the Scheduler pointer to be aliased
 pub unsafe fn unsafe_borrow() -> &mut Scheduler {
-    unsafe {
-        let key = tls_key();
-        let mut void_sched: *mut c_void = tls::get(key);
-        assert!(void_sched.is_not_null());
-        {
-            let void_sched_ptr = &mut void_sched;
-            let sched: &mut ~Scheduler = {
-                transmute::<&mut *mut c_void, &mut ~Scheduler>(void_sched_ptr)
-            };
-            let sched: &mut Scheduler = &mut **sched;
-            return sched;
-        }
+    let key = tls_key();
+    let mut void_sched: *mut c_void = tls::get(key);
+    assert!(void_sched.is_not_null());
+    {
+        let void_sched_ptr = &mut void_sched;
+        let sched: &mut ~Scheduler = {
+            transmute::<&mut *mut c_void, &mut ~Scheduler>(void_sched_ptr)
+        };
+        let sched: &mut Scheduler = &mut **sched;
+        return sched;
     }
 }
 

src/libcore/rt/uv/net.rs

@@ -388,7 +388,7 @@ fn connect_read() {
                 vec_to_uv_buf(vec::from_elem(size, 0))
             };
             do stream_watcher.read_start(alloc)
-                |stream_watcher, nread, buf, status| {
+                |stream_watcher, _nread, buf, status| {
 
                 let buf = vec_from_uv_buf(buf);
                 rtdebug!("read cb!");

src/libcore/stackwalk.rs

@@ -64,9 +64,7 @@ fn test_simple_deep() {
         if i == 0 { return }
 
         for walk_stack |_frame| {
-            unsafe {
-                breakpoint();
-            }
+            breakpoint();
         }
         run(i - 1);
     }

src/libcore/str.rs

@@ -3346,7 +3346,7 @@ mod tests {
     #[test]
     fn test_shift_byte() {
         let mut s = ~"ABC";
-        let b = unsafe { raw::shift_byte(&mut s) };
+        let b = raw::shift_byte(&mut s);
         assert!((s == ~"BC"));
         assert!((b == 65u8));
     }
@@ -3354,7 +3354,7 @@ mod tests {
     #[test]
     fn test_pop_byte() {
         let mut s = ~"ABC";
-        let b = unsafe { raw::pop_byte(&mut s) };
+        let b = raw::pop_byte(&mut s);
         assert!((s == ~"AB"));
         assert!((b == 67u8));
     }

src/libcore/task/local_data.rs

@@ -150,32 +150,28 @@ fn test_tls_modify() {
 
 #[test]
 fn test_tls_crust_automorestack_memorial_bug() {
-    unsafe {
-        // This might result in a stack-canary clobber if the runtime fails to
-        // set sp_limit to 0 when calling the cleanup extern - it might
-        // automatically jump over to the rust stack, which causes next_c_sp
-        // to get recorded as something within a rust stack segment. Then a
-        // subsequent upcall (esp. for logging, think vsnprintf) would run on
-        // a stack smaller than 1 MB.
-        fn my_key(_x: @~str) { }
-        do task::spawn {
-            unsafe { local_data_set(my_key, @~"hax"); }
-        }
+    // This might result in a stack-canary clobber if the runtime fails to
+    // set sp_limit to 0 when calling the cleanup extern - it might
+    // automatically jump over to the rust stack, which causes next_c_sp
+    // to get recorded as something within a rust stack segment. Then a
+    // subsequent upcall (esp. for logging, think vsnprintf) would run on
+    // a stack smaller than 1 MB.
+    fn my_key(_x: @~str) { }
+    do task::spawn {
+        unsafe { local_data_set(my_key, @~"hax"); }
     }
 }
 
 #[test]
 fn test_tls_multiple_types() {
-    unsafe {
-        fn str_key(_x: @~str) { }
-        fn box_key(_x: @@()) { }
-        fn int_key(_x: @int) { }
-        do task::spawn {
-            unsafe {
-                local_data_set(str_key, @~"string data");
-                local_data_set(box_key, @@());
-                local_data_set(int_key, @42);
-            }
+    fn str_key(_x: @~str) { }
+    fn box_key(_x: @@()) { }
+    fn int_key(_x: @int) { }
+    do task::spawn {
+        unsafe {
+            local_data_set(str_key, @~"string data");
+            local_data_set(box_key, @@());
+            local_data_set(int_key, @42);
         }
     }
 }