Struct mesh_protobuf::buffer::Buf

source ·
pub struct Buf<'a> { /* private fields */ }
Expand description

An accessor for writing to a partially-initialized byte buffer.

Implementations§

source§

impl<'a> Buf<'a>

source

pub fn remaining(&self) -> usize

Returns the remaining bytes that fit.

source

pub fn len(&self) -> usize

Returns the number of bytes that have been written.

source

pub fn push(&mut self, b: u8)

Extends the initialized portion of the buffer with b. Panics if it doesn’t fit.

source

pub fn append(&mut self, buf: &[u8])

Extends the initialized portion of the buffer with buf. Panics if the data does not fit.

source

pub fn fill(&mut self, val: u8, len: usize)

Extends the initialized portion of the buffer with len bytes equal to val. Panics if the data does not fit.

source

pub fn write_split<R>( &mut self, split_at: usize, f: impl FnOnce(Buf<'_>, Buf<'_>) -> R, ) -> R

Splits this buffer into two at split_at and calls f to fill out each part.

If the left buffer is not filled in full but the right buffer is partially initialized, then the remainder of the left buffer will be zero-initialized.

Trait Implementations§

source§

impl Buffer for Buf<'_>

source§

unsafe fn unwritten(&mut self) -> &mut [MaybeUninit<u8>]

Returns the unwritten portion of the buffer. The returned data may or may not be initialized. Read more
source§

unsafe fn extend_written(&mut self, len: usize)

Extends the initialized region of the buffer. Read more

Auto Trait Implementations§

§

impl<'a> Freeze for Buf<'a>

§

impl<'a> RefUnwindSafe for Buf<'a>

§

impl<'a> Send for Buf<'a>

§

impl<'a> Sync for Buf<'a>

§

impl<'a> Unpin for Buf<'a>

§

impl<'a> !UnwindSafe for Buf<'a>

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

source§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<T, U> Upcast<U> for T
where U: Downcast<T>,