Struct tap_reader::Tap

pub struct Tap<R> {
    pub bytes: Vec<u8>,
    // some fields omitted
}

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>

Methods

impl<R: Read> Tap<R>

Important traits for Tap<R>

impl<R: Read> Read for 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.

unsafe fn initializer(&self) -> Initializer

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

Determines if this Reader can work with buffers of uninitialized memory.

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

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

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

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

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

Read the exact number of bytes required to fill buf.

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

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

fn bytes(self) -> Bytes<Self>

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

fn chars(self) -> Chars<Self>

Deprecated since 1.27.0

: Use str::from_utf8 instead: https://doc.rust-lang.org/nightly/std/str/struct.Utf8Error.html#examples

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

the semantics of a partial read/write of where errors happen is currently unclear and may change

Transforms this Read instance to an [Iterator] over [char]s.

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

Creates an adaptor which will chain this stream with another.

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

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