Trait chomp::buffer::data_source::DataSource

pub trait DataSource {
    type Item: Copy + PartialEq;
    fn read(&mut self, _: &mut [Self::Item]) -> Result<usize>;
}

Abstraction over io::Read, Iterator and others.

Associated Types

type Item: Copy + PartialEq

The type of items this data source produces.

Required Methods

fn read(&mut self, _: &mut [Self::Item]) -> Result<usize>

Populates the supplied buffer with data, returns the number of items written.

Notes

• The number returned must not be larger than the length of the supplied slice.

• If no data could be written (or is available), or if the slice is of zero-length, Ok(0) should be returned (includes EOF).

• The slice must not be read from, may contain uninitialized memory.

Implementors

• impl<R: Read> DataSource for ReadDataSource<R>
• impl<RW: Read + Write> DataSource for RWDataSource<RW>
• impl<I: Iterator> DataSource for IteratorDataSource<I> where
    I::Item: Copy + PartialEq,