Struct ContextParser 

pub struct ContextParser<P> {
    pub(crate) parser: P,
    pub(crate) contexts: Vec<StringContext>,
}

A parser that attaches context to the ParseStack in case of an error.

This is our equivalent to winnow’s Context parser.

Fields

parser: P

contexts: Vec<StringContext>

Trait Implementations

impl<P: Debug> Debug for ContextParser<P>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'i, O, P> Parser<LocatingSlice<&'i str>, O, ErrMode<ParseStack<'i>>> for ContextParser<P>

where P: Parser<Input<'i>, O, ErrMode<ParseStack<'i>>>,

fn parse_next(&mut self, i: &mut Input<'i>) -> PResult<'i, O>

Take tokens from the [Stream], turning it into the output

fn parse( &mut self, input: I, ) -> Result<O, ParseError<I, <E as ParserError<I>>::Inner>>

where Self: Sized, I: Stream + StreamIsPartial, E: ParserError<I>, <E as ParserError<I>>::Inner: ParserError<I>,

Parse all of input, generating O from it

fn parse_iter(&mut self, input: I) -> ParseIter<'_, Self, I, O, E>

where Self: Sized, I: Stream + StreamIsPartial, E: ParserError<I>, <E as ParserError<I>>::Inner: ParserError<I>,

Repeat this parse until all of input is consumed, generating O from it

fn parse_peek(&mut self, input: I) -> Result<(I, O), E>

Take tokens from the [Stream], turning it into the output

fn by_ref(&mut self) -> ByRef<'_, Self, I, O, E>

where Self: Sized,

Treat &mut Self as a parser

fn value<O2>(self, val: O2) -> Value<Self, I, O, O2, E>

where Self: Sized, O2: Clone,

Produce the provided value

fn default_value<O2>(self) -> DefaultValue<Self, I, O, O2, E>

where Self: Sized, O2: Default,

Produce a type’s default value

fn void(self) -> Void<Self, I, O, E>

where Self: Sized,

Discards the output of the Parser

fn output_into<O2>(self) -> OutputInto<Self, I, O, O2, E>

where Self: Sized, O: Into<O2>,

Convert the parser’s output to another type using std::convert::From

fn take(self) -> Take<Self, I, O, E>

where Self: Sized, I: Stream,

Produce the consumed input as produced value.

fn with_taken(self) -> WithTaken<Self, I, O, E>

where Self: Sized, I: Stream,

Produce the consumed input with the output

fn span(self) -> Span<Self, I, O, E>

where Self: Sized, I: Stream + Location,

Produce the location of the consumed input as produced value.

fn with_span(self) -> WithSpan<Self, I, O, E>

where Self: Sized, I: Stream + Location,

Produce the location of consumed input with the output

fn map<G, O2>(self, map: G) -> Map<Self, G, I, O, O2, E>

where G: FnMut(O) -> O2, Self: Sized,

Maps a function over the output of a parser

fn try_map<G, O2, E2>(self, map: G) -> TryMap<Self, G, I, O, O2, E, E2>

where Self: Sized, G: FnMut(O) -> Result<O2, E2>, I: Stream, E: FromExternalError<I, E2> + ParserError<I>,

Applies a function returning a Result over the output of a parser.

fn verify_map<G, O2>(self, map: G) -> VerifyMap<Self, G, I, O, O2, E>

where Self: Sized, G: FnMut(O) -> Option<O2>, I: Stream, E: ParserError<I>,

Apply both Parser::verify and Parser::map.

fn flat_map<G, H, O2>(self, map: G) -> FlatMap<Self, G, H, I, O, O2, E>

where Self: Sized, G: FnMut(O) -> H, H: Parser<I, O2, E>,

Creates a parser from the output of this one

fn and_then<G, O2>(self, inner: G) -> AndThen<Self, G, I, O, O2, E>

where Self: Sized, G: Parser<O, O2, E>, O: StreamIsPartial, I: Stream,

Applies a second parser over the output of the first one

fn parse_to<O2>(self) -> ParseTo<Self, I, O, O2, E>

where Self: Sized, I: Stream, O: ParseSlice<O2>, E: ParserError<I>,

Apply std::str::FromStr to the output of the parser

fn verify<G, O2>(self, filter: G) -> Verify<Self, G, I, O, O2, E>

where Self: Sized, G: FnMut(&O2) -> bool, I: Stream, O: Borrow<O2>, E: ParserError<I>, O2: ?Sized,

Returns the output of the child parser if it satisfies a verification function.

fn context<C>(self, context: C) -> Context<Self, I, O, E, C>

where Self: Sized, I: Stream, E: AddContext<I, C> + ParserError<I>, C: Clone + Debug,

If parsing fails, add context to the error

fn context_with<F, C, FI>( self, context: F, ) -> ContextWith<Self, I, O, E, F, C, FI>

where Self: Sized, I: Stream, E: AddContext<I, C> + ParserError<I>, F: Fn() -> FI + Clone, C: Debug, FI: Iterator<Item = C>,

If parsing fails, dynamically add context to the error

fn map_err<G, E2>(self, map: G) -> MapErr<Self, G, I, O, E, E2>

where G: FnMut(E) -> E2, Self: Sized,

Maps a function over the error of a parser

fn complete_err(self) -> CompleteErr<Self, I, O, E>

where Self: Sized,

Transforms [Incomplete][crate::error::ErrMode::Incomplete] into [Backtrack][crate::error::ErrMode::Backtrack]

fn err_into<E2>(self) -> ErrInto<Self, I, O, E, E2>

where Self: Sized, E: Into<E2>,

Convert the parser’s error to another type using std::convert::From