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Checkpoint

chumsky::input

Struct Checkpoint 

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pub struct Checkpoint<'src, 'parse, I: Input<'src>, C> { /* private fields */ }
Expand description

Represents a location in an input that can be rewound to.

Checkpoints can be created with InputRef::save and rewound to with InputRef::rewind.

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impl<'src, 'parse, I: Input<'src>, C> Checkpoint<'src, 'parse, I, C>

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pub fn cursor(&self) -> &Cursor<'src, 'parse, I>

Get the Cursor that this checkpoint corresponds to.

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pub fn inspector(&self) -> &C

Get the Checkpoint that this marker corresponds to.

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impl<'src, I: Input<'src>, C: Clone> Clone for Checkpoint<'src, '_, I, C>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl<'src, 'parse, I, C> Freeze for Checkpoint<'src, 'parse, I, C>
where C: Freeze, <I as Input<'src>>::Cursor: Freeze,

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impl<'src, 'parse, I, C> RefUnwindSafe for Checkpoint<'src, 'parse, I, C>
where C: RefUnwindSafe, <I as Input<'src>>::Cursor: RefUnwindSafe,

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impl<'src, 'parse, I, C> Send for Checkpoint<'src, 'parse, I, C>
where C: Send, <I as Input<'src>>::Cursor: Send,

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impl<'src, 'parse, I, C> Sync for Checkpoint<'src, 'parse, I, C>
where C: Sync, <I as Input<'src>>::Cursor: Sync,

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impl<'src, 'parse, I, C> Unpin for Checkpoint<'src, 'parse, I, C>
where C: Unpin, <I as Input<'src>>::Cursor: Unpin,

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impl<'src, 'parse, I, C> UnsafeUnpin for Checkpoint<'src, 'parse, I, C>
where C: UnsafeUnpin, <I as Input<'src>>::Cursor: UnsafeUnpin,

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impl<'src, 'parse, I, C> UnwindSafe for Checkpoint<'src, 'parse, I, C>
where C: UnwindSafe, <I as Input<'src>>::Cursor: 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<'src, T> IntoMaybe<'src, T> for T
where T: 'src,

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type Proj<U: 'src> = U

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fn map_maybe<R>( self, _f: impl FnOnce(&'src T) -> &'src R, g: impl FnOnce(T) -> R, ) -> <T as IntoMaybe<'src, T>>::Proj<R>
where R: 'src,

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impl<'p, T> Seq<'p, T> for T
where T: Clone,

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type Item<'a> = &'a T where T: 'a

The item yielded by the iterator.
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type Iter<'a> = Once<&'a T> where T: 'a

An iterator over the items within this container, by reference.
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fn seq_iter(&self) -> <T as Seq<'p, T>>::Iter<'_>

Iterate over the elements of the container.
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fn contains(&self, val: &T) -> bool
where T: PartialEq,

Check whether an item is contained within this sequence.
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fn to_maybe_ref<'b>(item: <T as Seq<'p, T>>::Item<'b>) -> Maybe<T, &'p T>
where 'p: 'b,

Convert an item of the sequence into a MaybeRef.
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impl<T, S> SpanWrap<S> for T
where S: WrappingSpan<T>,

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fn with_span(self, span: S) -> S::Spanned

Invokes WrappingSpan::make_wrapped to wrap an AST node in a span.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.
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impl<T> OrderedSeq<'_, T> for T
where T: Clone,