Trait Source

pub trait Source<R>
where
    R: BufRead,
{
    // Required methods
    fn next_token(&mut self) -> Option<&str>;
    fn is_empty(&mut self) -> bool;

    // Provided method
    fn next_token_unwrap(&mut self) -> &str { ... }
}

The main trait. Types implementing this trait can be used for source of input! macro.

Required Methods

fn next_token(&mut self) -> Option<&str>

Gets a whitespace-splitted next token.

fn is_empty(&mut self) -> bool

Check if tokens are empty

Provided Methods

fn next_token_unwrap(&mut self) -> &str

Force gets a whitespace-splitted next token.

Implementations on Foreign Types

impl<R, S> Source<R> for &mut S

where R: BufRead, S: Source<R>,

fn next_token(&mut self) -> Option<&str>

fn is_empty(&mut self) -> bool

Implementors

impl<R> Source<R> for StdinSource<R>

where R: BufRead,

impl<R> Source<R> for LineSource<R>

where R: BufRead,

impl<R> Source<R> for OnceSource<R>

where R: BufRead,