Struct SpareCapacity

pub struct SpareCapacity<'a, T>(&'a mut Vec<T>);

A type that implements Buffer by appending to a Vec, up to its capacity.

To use this, use the spare_capacity function.

Because this uses the capacity, and never reallocates, the Vec should have some non-empty spare capacity.

Tuple Fields

0: &'a mut Vec<T>

Trait Implementations

impl<'a, T> Sealed<T> for SpareCapacity<'a, T>

type Output = usize

The mutated Vec reflects the number of bytes read. We also return this number, and a value of 0 indicates the end of the stream has been reached.

fn parts_mut(&mut self) -> (*mut T, usize)

Return a pointer and length for this buffer.

unsafe fn assume_init(self, len: usize) -> Self::Output

Convert a finished buffer pointer into its result.

impl<'a, T> Buffer<T> for SpareCapacity<'a, T>