Trait Reader

pub trait Reader {
    type Error;

    // Required method
    fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;
}

Trait for input sources that can provide data to the streaming parser.

Required Associated Types

type Error

The error type returned by read operations

Required Methods

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

Read data into the provided buffer. Returns the number of bytes read, or an error.

Contract

• A return value of 0 MUST indicate true end of stream
• Implementations MUST NOT return 0 unless no more data will ever be available
• Returning 0 followed by non-zero reads in subsequent calls violates this contract

Implementors