Method erase

aiscript-arena/src/types.rs:22–28

(ptr: NonNull<GcBoxInner<T>>)

    /// in a `Box`.
    #[inline(always)]
    pub(crate) unsafe fn erase<T: ?Sized>(ptr: NonNull<GcBoxInner<T>>) -> Self {
        unsafe {
            // This cast is sound because `GcBoxInner` is `repr(C)`.
            let erased = ptr.as_ptr() as *mut GcBoxInner<()>;
            Self(NonNull::new_unchecked(erased))
        }
    }

    /// Gets a pointer to the value stored inside this box.
    /// `T` must be the same type that was used with `erase`, so that