Tracking issue for io_slice_advance #62726
Description
This is a tracking issue for IoSlice::{advance, advance_slices} and IoSliceMut::{advance, advance_slices}.
Feature gate: #![feature(io_slice_advance)].
Steps:
- Implement the RFC.
- FCP
- Stabilization PR.
Current API additions:
impl<'a> IoSlice<'a> { // And `IoSliceMut`
pub fn advance(&mut self, n: usize);
pub fn advance_slices(bufs: &mut &mut [IoSlice<'a>], n: usize);
}Old issue:
Writing rust-lang/futures-rs#1741 I needed to resort to unsafe code to change the underlying slice in IoSlice (and IoSliceMut). I'm missing a method that can change the underlying slice. @Nemo157 said that I should open an issue.
Current idea would be something like Buf::advance from the bytes crate.
impl IoSlice {
// Advance the internal cursors of the slice by `n` bytes.
fn advance(&mut self, n: usize) {
// ..
}
}