Trait Destination 

pub trait Destination: Write + Sealed {
    // Required methods
    fn can_patch(&self) -> bool;
    fn position(&mut self, relative: u64) -> Result<(), Error>;
}

Shared destination wrappers; media and raster routes use the same origin rules. Writer access derived by wrapping an actual writer in Forward or SeekBack. Sealed so callers cannot invent seek support independently of the writer.

Required Methods

fn can_patch(&self) -> bool

Whether this destination can overwrite relative output positions.

fn position(&mut self, relative: u64) -> Result<(), Error>

Seek relative to the output origin; fails for a forward-only writer.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<W> Destination for Forward<W>

where W: Write,

impl<W> Destination for SeekBack<W>

where W: Write + Seek,