Struct regex_syntax::ast::Flags

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pub struct Flags {
    pub span: Span,
    pub items: Vec<FlagsItem>,
}
Expand description

A group of flags.

This corresponds only to the sequence of flags themselves, e.g., is-u.

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§span: Span

The span of this group of flags.

§items: Vec<FlagsItem>

A sequence of flag items. Each item is either a flag or a negation operator.

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impl Flags

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pub fn add_item(&mut self, item: FlagsItem) -> Option<usize>

Add the given item to this sequence of flags.

If the item was added successfully, then None is returned. If the given item is a duplicate, then Some(i) is returned, where items[i].kind == item.kind.

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pub fn flag_state(&self, flag: Flag) -> Option<bool>

Returns the state of the given flag in this set.

If the given flag is in the set but is negated, then Some(false) is returned.

If the given flag is in the set and is not negated, then Some(true) is returned.

Otherwise, None is returned.

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impl Clone for Flags

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fn clone(&self) -> Flags

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Flags

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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 PartialEq for Flags

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fn eq(&self, other: &Flags) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for Flags

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impl StructuralPartialEq for Flags

Auto Trait Implementations§

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impl RefUnwindSafe for Flags

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impl Send for Flags

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impl Sync for Flags

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impl Unpin for Flags

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impl UnwindSafe for Flags

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> 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.