Struct std::io::IntoInnerError [] [src]

pub struct IntoInnerError<W>(_, _);

An error returned by into_inner which combines an error that happened while writing out the buffer, and the buffered writer object which may be used to recover from the condition.

Examples

fn main() { use std::io::BufWriter; use std::net::TcpStream; let mut stream = BufWriter::new(TcpStream::connect("127.0.0.1:34254").unwrap()); // do stuff with the stream // we want to get our `TcpStream` back, so let's try: let stream = match stream.into_inner() { Ok(s) => s, Err(e) => { // Here, e is an IntoInnerError panic!("An error occurred"); } }; }
use std::io::BufWriter;
use std::net::TcpStream;

let mut stream = BufWriter::new(TcpStream::connect("127.0.0.1:34254").unwrap());

// do stuff with the stream

// we want to get our `TcpStream` back, so let's try:

let stream = match stream.into_inner() {
    Ok(s) => s,
    Err(e) => {
        // Here, e is an IntoInnerError
        panic!("An error occurred");
    }
};

Methods

impl<W> IntoInnerError<W>

fn error(&self) -> &Error

Returns the error which caused the call to into_inner() to fail.

This error was returned when attempting to write the internal buffer.

Examples

fn main() { use std::io::BufWriter; use std::net::TcpStream; let mut stream = BufWriter::new(TcpStream::connect("127.0.0.1:34254").unwrap()); // do stuff with the stream // we want to get our `TcpStream` back, so let's try: let stream = match stream.into_inner() { Ok(s) => s, Err(e) => { // Here, e is an IntoInnerError, let's log the inner error. // // We'll just 'log' to stdout for this example. println!("{}", e.error()); panic!("An unexpected error occurred."); } }; }
use std::io::BufWriter;
use std::net::TcpStream;

let mut stream = BufWriter::new(TcpStream::connect("127.0.0.1:34254").unwrap());

// do stuff with the stream

// we want to get our `TcpStream` back, so let's try:

let stream = match stream.into_inner() {
    Ok(s) => s,
    Err(e) => {
        // Here, e is an IntoInnerError, let's log the inner error.
        //
        // We'll just 'log' to stdout for this example.
        println!("{}", e.error());

        panic!("An unexpected error occurred.");
    }
};

fn into_inner(self) -> W

Returns the buffered writer instance which generated the error.

The returned object can be used for error recovery, such as re-inspecting the buffer.

Examples

fn main() { use std::io::BufWriter; use std::net::TcpStream; let mut stream = BufWriter::new(TcpStream::connect("127.0.0.1:34254").unwrap()); // do stuff with the stream // we want to get our `TcpStream` back, so let's try: let stream = match stream.into_inner() { Ok(s) => s, Err(e) => { // Here, e is an IntoInnerError, let's re-examine the buffer: let buffer = e.into_inner(); // do stuff to try to recover // afterwards, let's just return the stream buffer.into_inner().unwrap() } }; }
use std::io::BufWriter;
use std::net::TcpStream;

let mut stream = BufWriter::new(TcpStream::connect("127.0.0.1:34254").unwrap());

// do stuff with the stream

// we want to get our `TcpStream` back, so let's try:

let stream = match stream.into_inner() {
    Ok(s) => s,
    Err(e) => {
        // Here, e is an IntoInnerError, let's re-examine the buffer:
        let buffer = e.into_inner();

        // do stuff to try to recover

        // afterwards, let's just return the stream
        buffer.into_inner().unwrap()
    }
};

Trait Implementations

impl<W: Reflect + Send + Debug> Error for IntoInnerError<W>

fn description(&self) -> &str

fn cause(&self) -> Option<&Error>

impl<W> Display for IntoInnerError<W>

fn fmt(&self, f: &mut Formatter) -> Result

Derived Implementations

impl<W: Debug> Debug for IntoInnerError<W>

fn fmt(&self, __arg_0: &mut Formatter) -> Result