Struct parser_combinators::primitives::State

pub struct State<I> {
    pub position: SourcePosition,
    pub input: I,
}

The State<I> struct keeps track of the current position in the stream I

Fields

position: SourcePosition

input: I

Methods

impl<I: Stream> State<I>

fn new(input: I) -> State<I>

fn as_empty(&self) -> State<I>

fn uncons<F>(self, f: F) -> ParseResult<I::Item, I> where F: FnOnce(&mut SourcePosition, &I::Item)

uncons is the most general way of extracting and item from a stream It takes a function f as argument which should update the position according to the item that was extracted Usually you want to use uncons_char instead which works directly on character streams

impl<I: Stream<Item=char>> State<I>

fn uncons_char(self) -> ParseResult<I::Item, I>

Specialized uncons function for character streams which updates the position with no further action needed

Trait Implementations

impl<I: Debug> Debug for State<I>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<I: PartialEq> PartialEq for State<I>

fn eq(&self, __arg_0: &State<I>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &State<I>) -> bool

This method tests for !=.

impl<I: Clone> Clone for State<I>

fn clone(&self) -> State<I>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.