1.0.0[][src]Struct std::io::Chain

pub struct Chain<T, U> { /* fields omitted */ }

Adaptor to chain together two readers.

This struct is generally created by calling chain on a reader. Please see the documentation of chain for more details.

Methods

impl<T, U> Chain<T, U>[src]

pub fn into_inner(self) -> (T, U)1.20.0[src]

Consumes the Chain, returning the wrapped readers.

Examples

use std::io;
use std::io::prelude::*;
use std::fs::File;

fn main() -> io::Result<()> {
    let mut foo_file = File::open("foo.txt")?;
    let mut bar_file = File::open("bar.txt")?;

    let chain = foo_file.chain(bar_file);
    let (foo_file, bar_file) = chain.into_inner();
    Ok(())
}Run

pub fn get_ref(&self) -> (&T, &U)1.20.0[src]

Gets references to the underlying readers in this Chain.

Examples

use std::io;
use std::io::prelude::*;
use std::fs::File;

fn main() -> io::Result<()> {
    let mut foo_file = File::open("foo.txt")?;
    let mut bar_file = File::open("bar.txt")?;

    let chain = foo_file.chain(bar_file);
    let (foo_file, bar_file) = chain.get_ref();
    Ok(())
}Run

pub fn get_mut(&mut self) -> (&mut T, &mut U)1.20.0[src]

Gets mutable references to the underlying readers in this Chain.

Care should be taken to avoid modifying the internal I/O state of the underlying readers as doing so may corrupt the internal state of this Chain.

Examples

use std::io;
use std::io::prelude::*;
use std::fs::File;

fn main() -> io::Result<()> {
    let mut foo_file = File::open("foo.txt")?;
    let mut bar_file = File::open("bar.txt")?;

    let mut chain = foo_file.chain(bar_file);
    let (foo_file, bar_file) = chain.get_mut();
    Ok(())
}Run

Trait Implementations

impl<T: Read, U: Read> Read for Chain<T, U>[src]

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>[src]

Read all bytes until EOF in this source, placing them into buf. Read more

fn read_to_string(&mut self, buf: &mut String) -> Result<usize>[src]

Read all bytes until EOF in this source, appending them to buf. Read more

fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>1.6.0[src]

Read the exact number of bytes required to fill buf. Read more

Important traits for &'_ mut F
fn by_ref(&mut self) -> &mut Self where
    Self: Sized
[src]

Creates a "by reference" adaptor for this instance of Read. Read more

Important traits for Bytes<R>
fn bytes(self) -> Bytes<Self> where
    Self: Sized
[src]

Transforms this Read instance to an [Iterator] over its bytes. Read more

Important traits for Chain<T, U>
fn chain<R: Read>(self, next: R) -> Chain<Self, R> where
    Self: Sized
[src]

Creates an adaptor which will chain this stream with another. Read more

Important traits for Take<T>
fn take(self, limit: u64) -> Take<Self> where
    Self: Sized
[src]

Creates an adaptor which will read at most limit bytes from it. Read more

impl<T: BufRead, U: BufRead> BufRead for Chain<T, U>1.9.0[src]

fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize>[src]

Read all bytes into buf until the delimiter byte or EOF is reached. Read more

fn read_line(&mut self, buf: &mut String) -> Result<usize>[src]

Read all bytes until a newline (the 0xA byte) is reached, and append them to the provided buffer. Read more

Important traits for Split<B>
fn split(self, byte: u8) -> Split<Self> where
    Self: Sized
[src]

Returns an iterator over the contents of this reader split on the byte byte. Read more

Important traits for Lines<B>
fn lines(self) -> Lines<Self> where
    Self: Sized
[src]

Returns an iterator over the lines of this reader. Read more

impl<T: Debug, U: Debug> Debug for Chain<T, U>1.16.0[src]

Auto Trait Implementations

impl<T, U> UnwindSafe for Chain<T, U> where
    T: UnwindSafe,
    U: UnwindSafe

impl<T, U> RefUnwindSafe for Chain<T, U> where
    T: RefUnwindSafe,
    U: RefUnwindSafe

impl<T, U> Unpin for Chain<T, U> where
    T: Unpin,
    U: Unpin

impl<T, U> Send for Chain<T, U> where
    T: Send,
    U: Send

impl<T, U> Sync for Chain<T, U> where
    T: Sync,
    U: Sync

Blanket Implementations

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

type Error = Infallible

The type returned in the event of a conversion error.

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

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

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

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

The type returned in the event of a conversion error.

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

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

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