Struct Writer 

pub struct Writer<'w, B: ?Sized> { /* private fields */ }

A structure wrapping a mutable pointer to a buffer

Implementations

impl<B: ?Sized> Writer<'_, B>

pub fn position(&self) -> usize

Accessor for the writer position

impl<'w> Writer<'w, [u8]>

pub fn from_slice(slice: &'w mut [u8]) -> Self

Create a new writer from a mutable byte slice

pub fn from_slice_position(slice: &'w mut [u8], pos: usize) -> Self

Create a new writer from a mutable byte slice, skipping a prefix

impl<'w> Writer<'w, Vec<u8>>

pub fn from_vec(vec: &'w mut Vec<u8>) -> Self

Available on crate feature alloc only.

Create a new writer from a mutable Vec pointer

pub fn from_vec_skip(vec: &'w mut Vec<u8>, pos: usize) -> Self

Available on crate feature alloc only.

Create a new writer from a mutable Vec pointer, skipping a prefix

impl<'b, B: ?Sized> Writer<'b, B>

pub fn from_buffer(buf: &'b mut B) -> Writer<'b, B>

Create a new writer from a reference to a buffer implementation

Trait Implementations

impl AsMut<[u8]> for Writer<'_, [u8]>

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

Converts this type into a mutable reference of the (usually inferred) input type.

impl<B: ResizeBuffer + ?Sized> AsMut<[u8]> for Writer<'_, B>

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

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<[u8]> for Writer<'_, [u8]>

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

Converts this type into a shared reference of the (usually inferred) input type.

impl<B: ResizeBuffer + ?Sized> AsRef<[u8]> for Writer<'_, B>

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

Converts this type into a shared reference of the (usually inferred) input type.

impl<'w, B: Debug + ?Sized> Debug for Writer<'w, B>

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

Formats the value using the given formatter.

impl ResizeBuffer for Writer<'_, [u8]>

fn buffer_insert(&mut self, pos: usize, data: &[u8]) -> Result<(), Error>

Insert a slice at the given position in the buffer

fn buffer_remove(&mut self, range: Range<usize>) -> Result<(), Error>

Remove an exclusive range from the buffer

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

Resize the buffer, truncating or padding it with zeroes

fn buffer_extend(&mut self, len: usize) -> Result<&mut [u8], Error>

Extend the buffer with len bytes of zeroes and return a mutable reference to the slice

impl<B: ResizeBuffer + ?Sized> ResizeBuffer for Writer<'_, B>

fn buffer_insert(&mut self, pos: usize, data: &[u8]) -> Result<(), Error>

Insert a slice at the given position in the buffer

fn buffer_remove(&mut self, range: Range<usize>) -> Result<(), Error>

Remove an exclusive range from the buffer

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

Resize the buffer, truncating or padding it with zeroes

fn buffer_extend(&mut self, len: usize) -> Result<&mut [u8], Error>

Extend the buffer with len bytes of zeroes and return a mutable reference to the slice

impl<'b, B: ?Sized> Write for Writer<'b, B>

where Writer<'b, B>: WriteBuffer,

fn write_str(&mut self, s: &str) -> Result

Writes a string slice into this writer, returning whether the write succeeded.

fn write_char(&mut self, c: char) -> Result<(), Error>

Writes a char into this writer, returning whether the write succeeded.

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

Glue for usage of the write! macro with implementors of this trait.

impl WriteBuffer for Writer<'_, [u8]>

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

Append a slice to the buffer

impl<B: WriteBuffer + ?Sized> WriteBuffer for Writer<'_, B>

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

Append a slice to the buffer