An extension trait ([Close]) for closing I/O related types such as File and BufWriter. Specifically it is for types containing a resource handle which, when closed, may return an error.

Provided implementations are for standard library types which implement (or contain types which implement):

• IntoRawFd (Unix)

• IntoRawHandle or IntoRawSocket (Windows).

Using [Close] enables the handling of I/O errors which might otherwise be ignored during drop.

BufWriter example

use std::io::{BufWriter, Result, Write};
use io_close::Close;

fn main() -> Result<()> {
let data = "hello world".as_bytes();
let mut buffer = BufWriter::new(tempfile::tempfile()?);
buffer.write_all(data)?;
buffer.close()?;
Ok(())
}