Struct bloguen::util::PolyWrite

pub struct PolyWrite<Wr1: Write, Wr2: Write>(pub Wr1, pub Wr2);

An output sink, writing the data passed thereto to two sinks contained therein.

If an error occurs, it will be propagated out of the first sink first.

The write() funxion returns the bigger of the two written lengths.

Examples

let mut out_1 = vec![];
let mut out_2 = vec![];

PolyWrite(&mut out_1, &mut out_2).write_all("Бenlo".as_bytes()).unwrap();

assert_eq!(out_1, "Бenlo".as_bytes());
assert_eq!(out_2, "Бenlo".as_bytes());

Trait Implementations

impl<Wr1: Eq + Write, Wr2: Eq + Write> Eq for PolyWrite<Wr1, Wr2>

impl<Wr1: Clone + Write, Wr2: Clone + Write> Clone for PolyWrite<Wr1, Wr2>

Important traits for PolyWrite<Wr1, Wr2>

impl<Wr1: Write, Wr2: Write> Write for PolyWrite<Wr1, Wr2>

fn clone(&self) -> PolyWrite<Wr1, Wr2>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<Wr1: PartialOrd + Write, Wr2: PartialOrd + Write> PartialOrd<PolyWrite<Wr1, Wr2>> for PolyWrite<Wr1, Wr2>

fn partial_cmp(&self, other: &PolyWrite<Wr1, Wr2>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &PolyWrite<Wr1, Wr2>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &PolyWrite<Wr1, Wr2>) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &PolyWrite<Wr1, Wr2>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &PolyWrite<Wr1, Wr2>) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<Wr1: PartialEq + Write, Wr2: PartialEq + Write> PartialEq<PolyWrite<Wr1, Wr2>> for PolyWrite<Wr1, Wr2>

fn eq(&self, other: &PolyWrite<Wr1, Wr2>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &PolyWrite<Wr1, Wr2>) -> bool

This method tests for !=.

impl<Wr1: Ord + Write, Wr2: Ord + Write> Ord for PolyWrite<Wr1, Wr2>

fn cmp(&self, other: &PolyWrite<Wr1, Wr2>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl<Wr1: Copy + Write, Wr2: Copy + Write> Copy for PolyWrite<Wr1, Wr2>

impl<Wr1: Hash + Write, Wr2: Hash + Write> Hash for PolyWrite<Wr1, Wr2>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl<Wr1: Debug + Write, Wr2: Debug + Write> Debug for PolyWrite<Wr1, Wr2>

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

Formats the value using the given formatter.

impl<Wr1: Write, Wr2: Write> Write for PolyWrite<Wr1, Wr2>

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

Write a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

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

Attempts to write an entire buffer into this writer.

fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

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

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