[−][src]Struct regex_syntax::ast::Flags
A group of flags.
This corresponds only to the sequence of flags themselves, e.g., is-u
.
Fields
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.
Implementations
impl Flags
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pub fn add_item(&mut self, item: FlagsItem) -> Option<usize>
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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
.
pub fn flag_state(&self, flag: Flag) -> Option<bool>
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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.
Trait Implementations
impl Clone for Flags
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impl Debug for Flags
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impl Eq for Flags
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impl PartialEq<Flags> for Flags
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impl StructuralEq for Flags
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impl StructuralPartialEq for Flags
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Auto Trait Implementations
impl RefUnwindSafe for Flags
impl Send for Flags
impl Sync for Flags
impl Unpin for Flags
impl UnwindSafe for Flags
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,