Method next

crates/stdlib/src/pystruct.rs:203–215

(zelf: &Py<Self>, vm: &VirtualMachine)

    impl IterNext for UnpackIterator {
        fn next(zelf: &Py<Self>, vm: &VirtualMachine) -> PyResult<PyIterReturn> {
            let size = zelf.format_spec.size;
            let offset = zelf.offset.fetch_add(size);
            zelf.buffer.with_ref(|buf| {
                if let Some(buf) = buf.get(offset..offset + size) {
                    zelf.format_spec
                        .unpack(buf, vm)
                        .map(|x| PyIterReturn::Return(x.into()))
                } else {
                    Ok(PyIterReturn::StopIteration(None))
                }
            })
        }
    }

    #[pyfunction]