Struct AppendOnlyView 

pub struct AppendOnlyView<'v, T> { /* private fields */ }

A Vec mutable reference wrapper only allowing to push new stuff, but restricting everything else and that can be used to maintain some data structure invariants.

It also implements Write, as a convenience.

Implementations

impl<'v, T> AppendOnlyView<'v, T>

pub fn push(&mut self, value: T)

pub fn reserve(&mut self, additional: usize)

pub fn reserve_exact(&mut self, additional: usize)

impl<'v, T: Clone> AppendOnlyView<'v, T>

pub fn extend_from_slice(&mut self, other: &[T])

Trait Implementations

impl<'v, T> Extend<T> for AppendOnlyView<'v, T>

fn extend<I: IntoIterator<Item = T>>(&mut self, iter: I)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

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

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

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

Reserves capacity in a collection for the given number of additional elements.

impl<'v, T> Write for AppendOnlyView<'v, T>

where Vec<T>: Write,

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

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

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

Attempts to write an entire buffer into this writer.

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

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

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

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

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

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

fn is_write_vectored(&self) -> bool

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

Determines if this Writer has an efficient write_vectored implementation.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

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

Attempts to write multiple buffers into this writer.

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

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.