Convert reinterpret_cast + forget to 'transmute'

Author: brson

src/libcore/str.rs

@@ -137,9 +137,7 @@ Fails if invalid UTF-8
 pure fn from_byte(b: u8) -> str unsafe {
     assert b < 128u8;
     let mut v = [b, 0u8];
-    let s: str = ::unsafe::reinterpret_cast(v);
-    ::unsafe::forget(v);
-    s
+    ::unsafe::transmute(v)
 }
 
 #[doc = "Appends a character at the end of a string"]
@@ -324,8 +322,7 @@ The result vector is not null-terminated.
 "]
 pure fn bytes(s: str) -> [u8] unsafe {
     let mut s_copy = s;
-    let mut v: [u8] = ::unsafe::reinterpret_cast(s_copy);
-    ::unsafe::forget(s_copy);
+    let mut v: [u8] = ::unsafe::transmute(s_copy);
     vec::unsafe::set_len(v, len(s));
     ret v;
 }
@@ -1708,9 +1705,7 @@ mod unsafe {
         v += [0u8];
 
         assert is_utf8(v);
-        let s: str = ::unsafe::reinterpret_cast(v);
-        ::unsafe::forget(v);
-        ret s;
+        ret ::unsafe::transmute(v);
     }
 
     #[doc = "Create a Rust string from a null-terminated C string"]
@@ -1732,9 +1727,7 @@ mod unsafe {
    "]
    unsafe fn from_bytes(v: [const u8]) -> str unsafe {
        let vcopy = v + [0u8];
-       let scopy: str = ::unsafe::reinterpret_cast(vcopy);
-       ::unsafe::forget(vcopy);
-       ret scopy;
+       ret ::unsafe::transmute(vcopy);
    }
 
    #[doc = "
@@ -1769,9 +1762,7 @@ mod unsafe {
            v
        };
        v += [0u8];
-       let s: str = ::unsafe::reinterpret_cast(v);
-       ::unsafe::forget(v);
-       ret s;
+       ret ::unsafe::transmute(v);
    }
 
    #[doc = "Appends a byte to a string. (Not UTF-8 safe)."]

src/libcore/task.rs

@@ -979,13 +979,12 @@ fn test_unkillable() unsafe {
 
     unkillable {||
         let p = ~0;
-        let pp: *uint = unsafe::reinterpret_cast(p);
-        unsafe::forget(p);
+        let pp: *uint = unsafe::transmute(p);
 
         // If we are killed here then the box will leak
         po.recv();
 
-        let _p: ~int = unsafe::reinterpret_cast(pp);
+        let _p: ~int = unsafe::transmute(pp);
     }
 
     // Now we can be killed

src/libcore/vec.rs

@@ -193,16 +193,12 @@ pure fn from_elem<T: copy>(n_elts: uint, t: T) -> [T] {
 
 #[doc = "Produces a mut vector from an immutable vector."]
 fn to_mut<T>(+v: [T]) -> [mut T] unsafe {
-    let r = ::unsafe::reinterpret_cast(v);
-    ::unsafe::forget(v);
-    r
+    ::unsafe::transmute(v)
 }
 
 #[doc = "Produces an immutable vector from a mut vector."]
 fn from_mut<T>(+v: [mut T]) -> [T] unsafe {
-    let r = ::unsafe::reinterpret_cast(v);
-    ::unsafe::forget(v);
-    r
+    ::unsafe::transmute(v)
 }
 
 // Accessors

src/libstd/arc.rs

@@ -40,8 +40,7 @@ type arc<T: const> = arc_destruct<T>;
 fn arc<T: const>(-data: T) -> arc<T> {
     let data = ~{mut count: 1, data: data};
     unsafe {
-        let ptr = unsafe::reinterpret_cast(data);
-        unsafe::forget(data);
+        let ptr = unsafe::transmute(data);
         arc_destruct(ptr)
     }
 }

src/libstd/rope.rs

@@ -817,9 +817,7 @@ mod node {
               }
             }
         }
-        let str : str = unsafe::reinterpret_cast(buf);
-        unsafe::forget(buf);//TODO: Check if this is correct
-        ret str;
+        ret unsafe::transmute(buf);
     }
 
     #[doc ="

src/rustc/middle/trans/debuginfo.rs

@@ -130,9 +130,7 @@ enum debug_metadata {
 
 fn cast_safely<T: copy, U>(val: T) -> U unsafe {
     let val2 = val;
-    let val3 = unsafe::reinterpret_cast(val2);
-    unsafe::forget(val2);
-    ret val3;
+    ret unsafe::transmute(val2);
 }
 
 fn md_from_metadata<T>(val: debug_metadata) -> T unsafe {