able/ext2-rs
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redo definitions on casts

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This commit is contained in:
Szymon Walter 2018-03-19 08:38:44 +01:00
parent 172c267917
commit 6b34d3325a
1 changed files with 6 additions and 5 deletions
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11
src/buffer/mod.rs
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@ -78,16 +78,17 @@ where
}
impl<'a> BufferSlice<'a, u8> {
pub fn dynamic_cast<T: Copy>(&self) -> (T, usize) {
pub unsafe fn dynamic_cast<T: Copy>(&self) -> (T, usize) {
assert!(self.inner.len() >= mem::size_of::<T>());
let index = self.index;
let cast = unsafe {
mem::transmute_copy(self.inner.as_ptr().as_ref().unwrap())
};
let cast = mem::transmute_copy(self.inner.as_ptr().as_ref().unwrap());
(cast, index)
}
pub fn from_cast<T: Copy>(cast: &T, index: usize) -> BufferSlice<'a, u8> {
pub fn from_cast<T: Copy>(
cast: &'a T,
index: usize,
) -> BufferSlice<'a, u8> {
let len = mem::size_of::<T>();
let ptr = cast as *const T as *const u8;
let slice = unsafe { slice::from_raw_parts(ptr, len) };