Struct Tap

pub struct Tap<R> {
    pub bytes: Vec<u8>,
    /* private fields */
}

Read adaptor

Takes a Read as input and copies all read bytes into it’s own buffer

Example

use tap_reader::Tap;
use std::io::{Cursor, Read};

let input = "hello, world!";
let bytes = input.as_bytes();
let cursor = Cursor::new(bytes);
let mut reader = Tap::new(cursor);

let mut output = String::new();
reader.read_to_string(&mut output)?;

assert_eq!(output, String::from_utf8_lossy(&reader.bytes));

Fields

bytes: Vec<u8>

Implementations

impl<R: Read> Tap<R>

pub fn new(r: R) -> Tap<R>

Construct a Tap reader from an existing reader

Example

use std::io::Cursor;
use tap_reader::Tap;
let input = "hello, world!";
let bytes = input.as_bytes();
let cursor = Cursor::new(bytes);
let mut reader = Tap::new(cursor);

Trait Implementations

impl<R: Read> Read for Tap<R>

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

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>

Like read, except that it reads into a slice of buffers.

fn is_read_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Reader has an efficient read_vectored implementation.

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

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

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

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

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

Reads the exact number of bytes required to fill buf.

fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)

Pull some bytes from this source into the specified buffer.

fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)

Reads the exact number of bytes required to fill cursor.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adaptor for this instance of Read.

fn bytes(self) -> Bytes<Self>

where Self: Sized,

Transforms this Read instance to an Iterator over its bytes.

fn chain<R>(self, next: R) -> Chain<Self, R>

where R: Read, Self: Sized,

Creates an adapter which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

where Self: Sized,

Creates an adapter which will read at most limit bytes from it.