Struct weave::DeltaWriter

pub struct DeltaWriter<'n> { /* fields omitted */ }

A DeltaWriter is used to write a new delta. Data should be written to the writer, and then the close method called to update the weave file with the new delta.

Methods

impl<'n> DeltaWriter<'n>

pub fn new<'a, 'b, I>(
    nc: &dyn NamingConvention,
    tags: I,
    base: usize
) -> Result<DeltaWriter> where
    I: Iterator<Item = (&'a str, &'b str)>, 

Construct a writer for a new delta. The naming convention and the tags set where the names will be written, and what tags will be associated with the convention. The base is the existing delta that the change should be based on.

pub fn close(self) -> Result<()>

Trait Implementations

impl<'n> Write for DeltaWriter<'n>

fn write(&mut self, buf: &[u8]) -> Result<usize>

Write a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

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

Attempts to write an entire buffer into this writer.

fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Write.