use core::fmt::{self, Write};

pub struct Stdout;

impl Write for Stdout {
    fn write_str(&mut self, s: &str) -> fmt::Result {
        crate::syscall::io_write(1, s.as_ptr(), s.len());
        Ok(())
    }
}

#[doc(hidden)]
pub fn _print(args: core::fmt::Arguments) {
    let mut stdout = crate::io::Stdout;
    let _ = core::fmt::Write::write_fmt(&mut stdout, args);
}

#[macro_export]
macro_rules! print {
    ($($arg:tt)*) => ($crate::io::_print(core::format_args!($($arg)*)));
}

#[macro_export]
macro_rules! println {
    () => ($crate::print!("\n"));
    ($($arg:tt)*) => {
        $crate::print!($($arg)*);
        $crate::print!("\n");
    };
}