Trait Buffer 

pub trait Buffer {
    // Required methods
    fn new() -> Self
       where Self: Sized;
    fn with_capacity(capacity: usize) -> Self
       where Self: Sized;
    fn consume(&mut self, rng: RangeTo<usize>);
    fn clear(&mut self);
    fn resize(&mut self, len: usize) -> Result<()>;
    fn truncate(&mut self, len: usize);
    fn extend_from_slice(&mut self, other: &[u8]) -> Result<()>;
    fn as_slice(&self) -> &[u8] ;
    fn as_mut_slice(&mut self) -> &mut [u8] ;
    fn len(&self) -> usize;
    fn is_empty(&self) -> bool;
    fn capacity(&self) -> usize;
}

A trait for types that can be used as a buffer in the Peekable and AsyncPeekable reader.

Required Methods

fn new() -> Self

where Self: Sized,

Create a new empty buffer.

fn with_capacity(capacity: usize) -> Self

where Self: Sized,

Create a new buffer with the specified capacity.

fn consume(&mut self, rng: RangeTo<usize>)

Consume the range from the buffer, the remaining elements are shifted to the left.

fn clear(&mut self)

Remove all elements from the buffer.

fn resize(&mut self, len: usize) -> Result<()>

Resizes the buffer so that its length is equal to len.

fn truncate(&mut self, len: usize)

Shorten the buffer, keeping the first len elements and dropping the rest.

fn extend_from_slice(&mut self, other: &[u8]) -> Result<()>

Copy elements from a slice and append them to the buffer.

fn as_slice(&self) -> &[u8]

Returns a slice of the buffer.

fn as_mut_slice(&mut self) -> &mut [u8]

Returns a mutable slice of the buffer.

fn len(&self) -> usize

Returns the length of the buffer.

fn is_empty(&self) -> bool

Returns true if the buffer is empty.

fn capacity(&self) -> usize

Returns the capacity of the buffer.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Buffer for Vec<u8>

fn new() -> Self

fn with_capacity(capacity: usize) -> Self

fn consume(&mut self, rng: RangeTo<usize>)

fn clear(&mut self)

fn resize(&mut self, len: usize) -> Result<()>

fn truncate(&mut self, len: usize)

fn extend_from_slice(&mut self, other: &[u8]) -> Result<()>

fn as_slice(&self) -> &[u8]

fn as_mut_slice(&mut self) -> &mut [u8]

fn len(&self) -> usize

fn is_empty(&self) -> bool

fn capacity(&self) -> usize

impl<A: Array<Item = u8>> Buffer for TinyVec<A>

Available on crate feature tinyvec only.

fn new() -> Self

where Self: Sized,

fn with_capacity(capacity: usize) -> Self

where Self: Sized,

fn consume(&mut self, rng: RangeTo<usize>)

fn clear(&mut self)

fn resize(&mut self, len: usize) -> Result<()>

fn truncate(&mut self, len: usize)

fn extend_from_slice(&mut self, other: &[u8]) -> Result<()>

fn as_slice(&self) -> &[u8]

fn as_mut_slice(&mut self) -> &mut [u8]

fn len(&self) -> usize

fn is_empty(&self) -> bool

fn capacity(&self) -> usize

impl<A> Buffer for SmallVec<A>

where A: Array<Item = u8>,

Available on crate feature smallvec only.

fn new() -> Self

where Self: Sized,

fn with_capacity(capacity: usize) -> Self

where Self: Sized,

fn consume(&mut self, rng: RangeTo<usize>)

fn clear(&mut self)

fn resize(&mut self, len: usize) -> Result<()>

fn truncate(&mut self, len: usize)

fn extend_from_slice(&mut self, other: &[u8]) -> Result<()>

fn as_slice(&self) -> &[u8]

fn as_mut_slice(&mut self) -> &mut [u8]

fn len(&self) -> usize

fn is_empty(&self) -> bool

fn capacity(&self) -> usize

Implementors