Trait InputFeatures 

pub trait InputFeatures: Read {
    // Required methods
    fn get_size(&mut self) -> Result<usize, Error>;
    fn try_seek(&mut self, pos: SeekFrom) -> Result<u64, Error>;

    // Provided method
    fn get_unix_mtime(&mut self) -> Result<Option<i64>, Error> { ... }
}

An extension to the basic Read trait supporting additional features needed for Tectonic’s I/O system.

Required Methods

fn get_size(&mut self) -> Result<usize, Error>

Get the size of the stream. Return TectonicIoError::NotSizeable if the operation is not well-defined for this stream.

fn try_seek(&mut self, pos: SeekFrom) -> Result<u64, Error>

Try to seek within the stream. Return TectonicIoError::NotSeekable if the operation is not possible for this stream.

Provided Methods

fn get_unix_mtime(&mut self) -> Result<Option<i64>, Error>

Get the modification time of this file as a Unix time. If that quantity is not meaningfully defined for this input, return Ok(None). This is what the default implementation does.

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl InputFeatures for BufReader<File>

fn get_size(&mut self) -> Result<usize, Error>

fn get_unix_mtime(&mut self) -> Result<Option<i64>, Error>

fn try_seek(&mut self, pos: SeekFrom) -> Result<u64, Error>

impl InputFeatures for Cursor<SharedByteBuffer>

fn get_size(&mut self) -> Result<usize, Error>

fn get_unix_mtime(&mut self) -> Result<Option<i64>, Error>

fn try_seek(&mut self, pos: SeekFrom) -> Result<u64, Error>

impl InputFeatures for Cursor<Vec<u8>>

fn get_size(&mut self) -> Result<usize, Error>

fn get_unix_mtime(&mut self) -> Result<Option<i64>, Error>

fn try_seek(&mut self, pos: SeekFrom) -> Result<u64, Error>

impl InputFeatures for File

fn get_size(&mut self) -> Result<usize, Error>

fn get_unix_mtime(&mut self) -> Result<Option<i64>, Error>

fn try_seek(&mut self, pos: SeekFrom) -> Result<u64, Error>

impl<R> InputFeatures for GzDecoder<R>

where R: Read,

fn get_size(&mut self) -> Result<usize, Error>

fn get_unix_mtime(&mut self) -> Result<Option<i64>, Error>

fn try_seek(&mut self, _: SeekFrom) -> Result<u64, Error>

Implementors

impl InputFeatures for InputHandle