Trait rustc_data_structures::tagged_ptr::Tag

pub unsafe trait Tag: Copy {
    const BITS: usize;

    fn into_usize(self) -> usize;
    unsafe fn from_usize(tag: usize) -> Self;
}

This describes tags that the TaggedPtr struct can hold.

Safety

The BITS constant must be correct.

No more than BITS least significant bits may be set in the returned usize.

Required Associated Constants

const BITS: usize

Required Methods

fn into_usize(self) -> usize

unsafe fn from_usize(tag: usize) -> Self

Safety

The passed tag must be returned from into_usize.

Implementors