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Struct Or

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pub struct Or<F, G> { /* private fields */ }
Expand description

Implementation of Parser::or

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impl<'a, I: Clone, O, E: ParseError<I>, F: Parser<I, O, E>, G: Parser<I, O, E>> Parser<I, O, E> for Or<F, G>

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fn parse(&mut self, i: I) -> IResult<I, O, E>

A parser takes in input type, and returns a Result containing either the remaining input and the output value, or an error
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fn map<G, O2>(self, g: G) -> Map<Self, G, O>
where G: Fn(O) -> O2, Self: Sized,

Maps a function over the result of a parser
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fn flat_map<G, H, O2>(self, g: G) -> FlatMap<Self, G, O>
where G: FnMut(O) -> H, H: Parser<I, O2, E>, Self: Sized,

Creates a second parser from the output of the first one, then apply over the rest of the input
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fn and_then<G, O2>(self, g: G) -> AndThen<Self, G, O>
where G: Parser<O, O2, E>, Self: Sized,

Applies a second parser over the output of the first one
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fn and<G, O2>(self, g: G) -> And<Self, G>
where G: Parser<I, O2, E>, Self: Sized,

Applies a second parser after the first one, return their results as a tuple
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fn or<G>(self, g: G) -> Or<Self, G>
where G: Parser<I, O, E>, Self: Sized,

Applies a second parser over the input if the first one failed
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fn into<O2: From<O>, E2: From<E>>(self) -> Into<Self, O, O2, E, E2>
where Self: Sized,

automatically converts the parser’s output and error values to another type, as long as they implement the From trait

Auto Trait Implementations§

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impl<F, G> Freeze for Or<F, G>
where F: Freeze, G: Freeze,

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impl<F, G> RefUnwindSafe for Or<F, G>

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impl<F, G> Send for Or<F, G>
where F: Send, G: Send,

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impl<F, G> Sync for Or<F, G>
where F: Sync, G: Sync,

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impl<F, G> Unpin for Or<F, G>
where F: Unpin, G: Unpin,

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impl<F, G> UnwindSafe for Or<F, G>
where F: UnwindSafe, G: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.