Trait proconio::source::Source

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

    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

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Provided methods

fn next_token_unwrap(&mut self) -> &str

Force gets a whitespace-splitted next token.

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Implementations on Foreign Types

impl<'_, R: BufRead, S: Source<R>> Source<R> for &'_ mut S

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

fn is_empty(&mut self) -> bool

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Implementors

impl<R: BufRead> Source<R> for LineSource<R>

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

Gets a next token.

fn is_empty(&mut self) -> bool

Check if tokens are empty

impl<R: BufRead> Source<R> for OnceSource<R>

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

Gets a next token.

fn is_empty(&mut self) -> bool

Check if tokens are empty

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