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.

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

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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.

Trait Implementations

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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<Flags> 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 ==. Read more

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

This method tests for !=.

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impl Eq for Flags

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impl StructuralEq for Flags

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impl StructuralPartialEq for Flags

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

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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> 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)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

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 regex_syntax::ast::Flags

Fields

Implementations

impl Flags

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

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

Trait Implementations

impl Clone for Flags

fn clone(&self) -> Flags

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

impl Debug for Flags

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

impl PartialEq<Flags> for Flags

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

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

impl Eq for Flags

impl StructuralEq for Flags

impl StructuralPartialEq for Flags

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,

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> 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>

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, 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>,