Method stack_index_mut

crates/vm/src/frame.rs:354–359

(&mut self, idx: usize)

    /// Get a mutable reference to a stack slot by index from the bottom.
    #[inline(always)]
    fn stack_index_mut(&mut self, idx: usize) -> &mut Option<PyStackRef> {
        debug_assert!(idx < self.stack_top as usize);
        let raw_idx = self.nlocalsplus as usize + idx;
        let data = self.data_as_mut_slice();
        unsafe { &mut *(data.as_mut_ptr().add(raw_idx) as *mut Option<PyStackRef>) }
    }

    /// Get the last stack element (top of stack).
    #[inline(always)]