fn parse()

in src/protocol/admin/src/admin.rs [37:73]
32 lines of code
3 McCabe index (conditional complexity)

    fn parse(&self, buffer: &[u8]) -> Result<ParseOk<AdminRequest>> {
        // check if we got a CRLF
        if let Some(command_end) = buffer
            .windows(CRLF.len())
            .position(|w| w == CRLF.as_bytes())
        {
            let trimmed_buffer = &buffer[0..command_end].trim();

            // single-byte windowing to find spaces
            let mut single_byte_windows = trimmed_buffer.windows(1);
            if let Some(command_verb_end) = single_byte_windows.position(|w| w == b" ") {
                let command_verb = &trimmed_buffer[0..command_verb_end];
                // TODO(bmartin): 'stats slab' will go here eventually which will
                // remove the need for ignoring this lint.
                #[allow(clippy::match_single_binding)]
                match command_verb {
                    _ => Err(Error::from(ErrorKind::InvalidInput)),
                }
            } else {
                match &trimmed_buffer[0..] {
                    b"flush_all" => Ok(ParseOk::new(
                        AdminRequest::FlushAll,
                        command_end + CRLF.len(),
                    )),
                    b"stats" => Ok(ParseOk::new(AdminRequest::Stats, command_end + CRLF.len())),
                    b"quit" => Ok(ParseOk::new(AdminRequest::Quit, command_end + CRLF.len())),
                    b"version" => Ok(ParseOk::new(
                        AdminRequest::Version,
                        command_end + CRLF.len(),
                    )),
                    _ => Err(Error::from(ErrorKind::InvalidInput)),
                }
            }
        } else {
            Err(Error::from(ErrorKind::WouldBlock))
        }
    }