Struct chumsky::error::Cheap

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pub struct Cheap<I, S = Range<usize>> { /* private fields */ }

Expand description

A minimal error type that tracks only the error span and label. This type is most useful when you want fast parsing but do not particularly care about the quality of error messages.

Implementations

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impl<I, S: Clone> Cheap<I, S>

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pub fn span(&self) -> S

Returns the span that the error occured at.

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pub fn label(&self) -> Option<&'static str>

Returns the error’s label, if any.

Trait Implementations

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impl<I: Clone, S: Clone> Clone for Cheap<I, S>

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fn clone(&self) -> Cheap<I, S>

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl<I: Debug, S: Debug> Debug for Cheap<I, S>

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

Formats the value using the given formatter. Read more

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impl<I, S: Span + Clone + Debug> Error for Cheap<I, S>

type Span = S

The type of spans to be used in the error.

type Label = &'static str

The label used to describe a syntatic structure currently being parsed. Read more

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fn expected_input_found<Iter: IntoIterator<Item = Option>>(
 span: Self::Span,
 _: Iter,
 _: Option
) -> Self

Create a new error describing a conflict between expected inputs and that which was actually found. Read more

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fn with_label(self, label: Self::Label) -> Self

Indicate that the error occured while parsing a particular syntactic structure. Read more

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fn merge(self, _: Self) -> Self

Merge two errors that point to the same input together, combining their information.

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fn unclosed_delimiter(
 unclosed_span: Self::Span,
 unclosed: I,
 span: Self::Span,
 expected: I,
 found: Option
) -> Self

Create a new error describing a delimiter that was not correctly closed. Read more

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impl<I: PartialEq, S: PartialEq> PartialEq<Cheap<I, S>> for Cheap<I, S>

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fn eq(&self, other: &Cheap<I, S>) -> bool

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

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fn ne(&self, other: &Cheap<I, S>) -> bool

This method tests for !=.

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impl<I: Eq, S: Eq> Eq for Cheap<I, S>

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impl<I, S> StructuralEq for Cheap<I, S>

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impl<I, S> StructuralPartialEq for Cheap<I, S>

Auto Trait Implementations

impl<I, S> RefUnwindSafe for Cheap<I, S> where
I: RefUnwindSafe,
S: RefUnwindSafe,

impl<I, S> Send for Cheap<I, S> where
I: Send,
S: Send,

impl<I, S> Sync for Cheap<I, S> where
I: Sync,
S: Sync,

impl<I, S> Unpin for Cheap<I, S> where
I: Unpin,
S: Unpin,

impl<I, S> UnwindSafe for Cheap<I, S> where
I: UnwindSafe,
S: 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,

const: unstable · source

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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> Chain<T> for T

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fn len(&self) -> usize

The number of items that this chain link consists of.

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fn append_to(self, v: &mut Vec<T, Global>)

Append the elements in this link to the chain.

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impl<T> Container<T> for T where
T: Clone,

type Iter = Once<T>

An iterator over the items within this container, by value.

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fn get_iter(&self) -> <T as Container<T>>::Iter

Iterate over the elements of the container (using internal iteration because GATs are unstable).

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

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> ToOwned for T where
T: Clone,

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 for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct chumsky::error::Cheap

Implementations

impl<I, S: Clone> Cheap<I, S>

pub fn span(&self) -> S

pub fn label(&self) -> Option<&'static str>

Trait Implementations

impl<I: Clone, S: Clone> Clone for Cheap<I, S>

fn clone(&self) -> Cheap<I, S>

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

impl<I: Debug, S: Debug> Debug for Cheap<I, S>

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

impl<I, S: Span + Clone + Debug> Error<I> for Cheap<I, S>

type Span = S

type Label = &'static str

fn expected_input_found<Iter: IntoIterator<Item = Option<I>>>( span: Self::Span, _: Iter, _: Option<I>) -> Self

fn with_label(self, label: Self::Label) -> Self

fn merge(self, _: Self) -> Self

fn unclosed_delimiter( unclosed_span: Self::Span, unclosed: I, span: Self::Span, expected: I, found: Option<I>) -> Self

impl<I: PartialEq, S: PartialEq> PartialEq<Cheap<I, S>> for Cheap<I, S>

fn eq(&self, other: &Cheap<I, S>) -> bool

fn ne(&self, other: &Cheap<I, S>) -> bool

impl<I: Eq, S: Eq> Eq for Cheap<I, S>

impl<I, S> StructuralEq for Cheap<I, S>

impl<I, S> StructuralPartialEq for Cheap<I, S>

Auto Trait Implementations

impl<I, S> RefUnwindSafe for Cheap<I, S> where I: RefUnwindSafe, S: RefUnwindSafe,

impl<I, S> Send for Cheap<I, S> where I: Send, S: Send,

impl<I, S> Sync for Cheap<I, S> where I: Sync, S: Sync,

impl<I, S> Unpin for Cheap<I, S> where I: Unpin, S: Unpin,

impl<I, S> UnwindSafe for Cheap<I, S> where I: UnwindSafe, S: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> Chain<T> for T

fn len(&self) -> usize

fn append_to(self, v: &mut Vec<T, Global>)

impl<T> Container<T> for T where T: Clone,

type Iter = Once<T>

fn get_iter(&self) -> <T as Container<T>>::Iter

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

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

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

fn expected_input_found<Iter: IntoIterator<Item = Option<I>>>(
span: Self::Span,
_: Iter,
_: Option<I>
) -> Self

fn unclosed_delimiter(
unclosed_span: Self::Span,
unclosed: I,
span: Self::Span,
expected: I,
found: Option<I>
) -> Self

impl<I, S> RefUnwindSafe for Cheap<I, S> where
I: RefUnwindSafe,
S: RefUnwindSafe,

impl<I, S> Send for Cheap<I, S> where
I: Send,
S: Send,

impl<I, S> Sync for Cheap<I, S> where
I: Sync,
S: Sync,

impl<I, S> Unpin for Cheap<I, S> where
I: Unpin,
S: Unpin,

impl<I, S> UnwindSafe for Cheap<I, S> where
I: UnwindSafe,
S: UnwindSafe,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T> Container<T> for T where
T: Clone,

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

impl<T> ToOwned for T where
T: Clone,

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

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