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use io;
use sys::{Void, unsupported};
pub struct Stdin(Void);
pub struct Stdout;
pub struct Stderr;
impl Stdin {
pub fn new() -> io::Result<Stdin> {
unsupported()
}
pub fn read(&self, _data: &mut [u8]) -> io::Result<usize> {
match self.0 {}
}
}
impl Stdout {
pub fn new() -> io::Result<Stdout> {
Ok(Stdout)
}
pub fn write(&self, data: &[u8]) -> io::Result<usize> {
if !super::DEBUG {
return unsupported()
}
extern {
fn rust_wasm_write_stdout(data: *const u8, len: usize);
}
unsafe {
rust_wasm_write_stdout(data.as_ptr(), data.len())
}
Ok(data.len())
}
pub fn flush(&self) -> io::Result<()> {
Ok(())
}
}
impl Stderr {
pub fn new() -> io::Result<Stderr> {
Ok(Stderr)
}
pub fn write(&self, data: &[u8]) -> io::Result<usize> {
if !super::DEBUG {
return unsupported()
}
extern {
fn rust_wasm_write_stderr(data: *const u8, len: usize);
}
unsafe {
rust_wasm_write_stderr(data.as_ptr(), data.len())
}
Ok(data.len())
}
pub fn flush(&self) -> io::Result<()> {
Ok(())
}
}
impl io::Write for Stderr {
fn write(&mut self, data: &[u8]) -> io::Result<usize> {
(&*self).write(data)
}
fn flush(&mut self) -> io::Result<()> {
(&*self).flush()
}
}
pub const STDIN_BUF_SIZE: usize = 0;
pub fn is_ebadf(_err: &io::Error) -> bool {
true
}