Struct regex_syntax::ast::parse::NestLimiter

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struct NestLimiter<'p, 's, P> {
    p: &'p ParserI<'s, P>,
    depth: u32,
}
Expand description

A type that traverses a fully parsed Ast and checks whether its depth exceeds the specified nesting limit. If it does, then an error is returned.

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§p: &'p ParserI<'s, P>

The parser that is checking the nest limit.

§depth: u32

The current depth while walking an Ast.

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impl<'p, 's, P: Borrow<Parser>> NestLimiter<'p, 's, P>

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fn new(p: &'p ParserI<'s, P>) -> NestLimiter<'p, 's, P>

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fn check(self, ast: &Ast) -> Result<(), Error>

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fn increment_depth(&mut self, span: &Span) -> Result<(), Error>

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fn decrement_depth(&mut self)

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impl<'p, 's, P: Debug> Debug for NestLimiter<'p, 's, P>

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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<'p, 's, P: Borrow<Parser>> Visitor for NestLimiter<'p, 's, P>

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type Output = ()

The result of visiting an AST.
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type Err = Error

An error that visiting an AST might return.
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fn finish(self) -> Result<(), Error>

All implementors of Visitor must provide a finish method, which yields the result of visiting the AST or an error.
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fn visit_pre(&mut self, ast: &Ast) -> Result<(), Error>

This method is called on an Ast before descending into child Ast nodes.
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fn visit_post(&mut self, ast: &Ast) -> Result<(), Error>

This method is called on an Ast after descending all of its child Ast nodes.
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fn visit_class_set_item_pre(&mut self, ast: &ClassSetItem) -> Result<(), Error>

This method is called on every ClassSetItem before descending into child nodes.
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fn visit_class_set_item_post(&mut self, ast: &ClassSetItem) -> Result<(), Error>

This method is called on every ClassSetItem after descending into child nodes.
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fn visit_class_set_binary_op_pre( &mut self, ast: &ClassSetBinaryOp, ) -> Result<(), Error>

This method is called on every ClassSetBinaryOp before descending into child nodes.
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fn visit_class_set_binary_op_post( &mut self, _ast: &ClassSetBinaryOp, ) -> Result<(), Error>

This method is called on every ClassSetBinaryOp after descending into child nodes.
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fn start(&mut self)

This method is called before beginning traversal of the AST.
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fn visit_alternation_in(&mut self) -> Result<(), Self::Err>

This method is called between child nodes of an Alternation.
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fn visit_concat_in(&mut self) -> Result<(), Self::Err>

This method is called between child nodes of a concatenation.
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fn visit_class_set_binary_op_in( &mut self, _ast: &ClassSetBinaryOp, ) -> Result<(), Self::Err>

This method is called between the left hand and right hand child nodes of a ClassSetBinaryOp.

Auto Trait Implementations§

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impl<'p, 's, P> Freeze for NestLimiter<'p, 's, P>

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impl<'p, 's, P> RefUnwindSafe for NestLimiter<'p, 's, P>
where P: RefUnwindSafe,

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impl<'p, 's, P> Send for NestLimiter<'p, 's, P>
where P: Sync,

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impl<'p, 's, P> Sync for NestLimiter<'p, 's, P>
where P: Sync,

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impl<'p, 's, P> Unpin for NestLimiter<'p, 's, P>

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impl<'p, 's, P> UnwindSafe for NestLimiter<'p, 's, P>
where P: RefUnwindSafe,

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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.