std::io::IntoInnerError - Rust
Description: API documentation for the Rust `IntoInnerError` struct in crate `std`.
Keywords: rust, rustlang, rust-lang, IntoInnerError

# 1.0.0[−][src]Struct std::io::IntoInnerError

    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

    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");
        }
    };Run

## Methods

### `impl<W> IntoInnerError<W>`[src]

#### `pub fn error(&self) -> &Error`[src]

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

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

# Examples

    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.");
        }
    };Run

#### `pub fn into_inner(self) -> W`[src]

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

    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()
        }
    };Run

## Trait Implementations

### `impl<W: Send + Debug> Error for IntoInnerError<W>`[src]

#### `fn description(&self) -> &str`[src]

This method is soft-deprecated. Read more

#### `fn cause(&self) -> Option<&dyn Error>`[src]

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

The lower-level cause of this error, if any. Read more

#### `fn source(&self) -> Option<&(dyn Error + 'static)>`
1.30.0
[src]

The lower-level source of this error, if any. Read more

### `impl<W> From<IntoInnerError<W>> for Error`[src]

#### `fn from(iie: IntoInnerError<W>) -> Error`[src]

Performs the conversion.

### `impl<W> Display for IntoInnerError<W>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

Formats the value using the given formatter. Read more

### `impl<W: Debug> Debug for IntoInnerError<W>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

Formats the value using the given formatter. Read more

## Auto Trait Implementations

### `impl<W> Send for IntoInnerError<W> where
W: Send,`

### `impl<W> Sync for IntoInnerError<W> where
W: Sync,`

## Blanket Implementations

### `impl<T> From for T`[src]

#### `fn from(t: T) -> T`[src]

Performs the conversion.

### `impl<T, U> TryFrom for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

Performs the conversion.

### `impl<T, U> TryInto for T where
U: TryFrom<T>,` [src]

#### `type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

#### `fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src]

Performs the conversion.

### `impl<T, U> Into for T where
U: From<T>,` [src]

#### `fn into(self) -> U`[src]

Performs the conversion.

### `impl<T> Borrow for T where
T: ?Sized,` [src]

####
ⓘImportant traits for &'_ mut I

### Important traits for &'_ mut I

`impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized, '_> Read for &'_ mut Rimpl<W: Write + ?Sized, '_> Write for &'_ mut W`
`fn borrow(&self) -> &T`[src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut for T where
T: ?Sized,` [src]

####
ⓘImportant traits for &'_ mut I

### Important traits for &'_ mut I

`impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized, '_> Read for &'_ mut Rimpl<W: Write + ?Sized, '_> Write for &'_ mut W`
`fn borrow_mut(&mut self) -> &mut T`[src]

Mutably borrows from an owned value. Read more

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `fn type_id(&self) -> TypeId`[src]

Gets the `TypeId` of `self`. Read more

### `impl<T> ToString for T where
T: Display + ?Sized,` [src]

#### `fn to_string(&self) -> String`[src]

Converts the given value to a `String`. Read more

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