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Rename NoDrop's field to inner

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This commit is contained in:
edef 2017-03-17 01:51:57 +01:00
parent 246b9d32ec
commit 409451c32c
1 changed files with 9 additions and 9 deletions
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18
src/generator.rs
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@ -92,7 +92,7 @@ pub struct Generator<'a, Input: 'a, Output: 'a, Stack: stack::Stack> {
#[allow(unions_with_drop_fields)]
union NoDrop<T> {
value: T,
inner: T
_empty: ()
}
@ -100,7 +100,7 @@ impl<T: ::core::fmt::Debug> ::core::fmt::Debug for NoDrop<T> {
fn fmt(&self, w: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
unsafe {
// this is safe because we never invoke formatting on the empty variant
self.value.fmt(w)
self.inner.fmt(w)
}
}
}
@ -148,8 +148,8 @@ impl<'a, Input, Output, Stack> Generator<'a, Input, Output, Stack>
Generator {
state: State::Runnable,
stack: NoDrop { value: stack },
stack_id: NoDrop { value: stack_id },
stack: NoDrop { inner: stack },
stack_id: NoDrop { inner: stack_id },
stack_ptr: stack_ptr,
phantom: PhantomData
}
@ -168,7 +168,7 @@ impl<'a, Input, Output, Stack> Generator<'a, Input, Output, Stack>
// Switch to the generator function, and retrieve the yielded value.
let val = unsafe {
let (data_out, stack_ptr) = arch::swap(&input as *const Input as usize, self.stack_ptr, Some(&self.stack.value));
let (data_out, stack_ptr) = arch::swap(&input as *const Input as usize, self.stack_ptr, Some(&self.stack.inner));
self.stack_ptr = stack_ptr;
mem::forget(input);
ptr::read(data_out as *const Option<Output>)
@ -204,8 +204,8 @@ impl<'a, Input, Output, Stack> Generator<'a, Input, Output, Stack>
/// Extracts the stack from a generator without checking if the generator function has returned.
/// This will leave any pointers into the generator stack dangling, and won't run destructors.
pub unsafe fn unsafe_unwrap(mut self) -> Stack {
ptr::drop_in_place(&mut self.stack_id.value);
let stack = ptr::read(&mut self.stack.value);
ptr::drop_in_place(&mut self.stack_id.inner);
let stack = ptr::read(&mut self.stack.inner);
mem::forget(self);
stack
}
@ -215,10 +215,10 @@ impl<'a, Input, Output, Stack> Drop for Generator<'a, Input, Output, Stack>
where Input: 'a, Output: 'a, Stack: stack::Stack {
fn drop(&mut self) {
unsafe {
ptr::drop_in_place(&mut self.stack_id.value);
ptr::drop_in_place(&mut self.stack_id.inner);
match self.state {
State::Runnable => panic!("dropped unfinished Generator"),
State::Unavailable => ptr::drop_in_place(&mut self.stack.value)
State::Unavailable => ptr::drop_in_place(&mut self.stack.inner)
}
}
}