Struct selectors::matching::ElementSelectorFlags
source · pub struct ElementSelectorFlags(_);
Expand description
Set of flags that are set on either the element or its parent (depending on the flag) if the element could potentially match a selector.
Implementations§
source§impl ElementSelectorFlags
impl ElementSelectorFlags
sourcepub const HAS_SLOW_SELECTOR: Self = _
pub const HAS_SLOW_SELECTOR: Self = _
When a child is added or removed from the parent, all the children must be restyled, because they may match :nth-last-child, :last-of-type, :nth-last-of-type, or :only-of-type.
sourcepub const HAS_SLOW_SELECTOR_LATER_SIBLINGS: Self = _
pub const HAS_SLOW_SELECTOR_LATER_SIBLINGS: Self = _
When a child is added or removed from the parent, any later children must be restyled, because they may match :nth-child, :first-of-type, or :nth-of-type.
sourcepub const HAS_SLOW_SELECTOR_NTH_OF: Self = _
pub const HAS_SLOW_SELECTOR_NTH_OF: Self = _
When a DOM mutation occurs on a child that might be matched by
:nth-last-child(.. of
Similarly, when a DOM mutation occurs on a child that might be
matched by :nth-child(.. of
sourcepub const HAS_EDGE_CHILD_SELECTOR: Self = _
pub const HAS_EDGE_CHILD_SELECTOR: Self = _
When a child is added or removed from the parent, the first and last children must be restyled, because they may match :first-child, :last-child, or :only-child.
sourcepub const HAS_EMPTY_SELECTOR: Self = _
pub const HAS_EMPTY_SELECTOR: Self = _
The element has an empty selector, so when a child is appended we might need to restyle the parent completely.
source§impl ElementSelectorFlags
impl ElementSelectorFlags
sourcepub const fn from_bits(bits: usize) -> Option<Self>
pub const fn from_bits(bits: usize) -> Option<Self>
Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.
sourcepub const fn from_bits_truncate(bits: usize) -> Self
pub const fn from_bits_truncate(bits: usize) -> Self
Convert from underlying bit representation, dropping any bits that do not correspond to flags.
sourcepub const fn from_bits_retain(bits: usize) -> Self
pub const fn from_bits_retain(bits: usize) -> Self
Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).
sourcepub fn from_name(name: &str) -> Option<Self>
pub fn from_name(name: &str) -> Option<Self>
Get the value for a flag from its stringified name.
Names are case-sensitive, so must correspond exactly to the identifier given to the flag.
sourcepub const fn intersects(&self, other: Self) -> bool
pub const fn intersects(&self, other: Self) -> bool
Returns true
if there are flags common to both self
and other
.
sourcepub const fn contains(&self, other: Self) -> bool
pub const fn contains(&self, other: Self) -> bool
Returns true
if all of the flags in other
are contained within self
.
sourcepub fn set(&mut self, other: Self, value: bool)
pub fn set(&mut self, other: Self, value: bool)
Inserts or removes the specified flags depending on the passed value.
sourcepub const fn intersection(self, other: Self) -> Self
pub const fn intersection(self, other: Self) -> Self
Returns the intersection between the flags in self
and
other
.
Specifically, the returned set contains only the flags which are
present in both self
and other
.
This is equivalent to using the &
operator (e.g.
ops::BitAnd
), as in flags & other
.
sourcepub const fn union(self, other: Self) -> Self
pub const fn union(self, other: Self) -> Self
Returns the union of between the flags in self
and other
.
Specifically, the returned set contains all flags which are
present in either self
or other
, including any which are
present in both (see Self::symmetric_difference
if that
is undesirable).
This is equivalent to using the |
operator (e.g.
ops::BitOr
), as in flags | other
.
sourcepub const fn difference(self, other: Self) -> Self
pub const fn difference(self, other: Self) -> Self
Returns the difference between the flags in self
and other
.
Specifically, the returned set contains all flags present in
self
, except for the ones present in other
.
It is also conceptually equivalent to the “bit-clear” operation:
flags & !other
(and this syntax is also supported).
This is equivalent to using the -
operator (e.g.
ops::Sub
), as in flags - other
.
sourcepub const fn symmetric_difference(self, other: Self) -> Self
pub const fn symmetric_difference(self, other: Self) -> Self
Returns the symmetric difference between the flags
in self
and other
.
Specifically, the returned set contains the flags present which
are present in self
or other
, but that are not present in
both. Equivalently, it contains the flags present in exactly
one of the sets self
and other
.
This is equivalent to using the ^
operator (e.g.
ops::BitXor
), as in flags ^ other
.
sourcepub const fn complement(self) -> Self
pub const fn complement(self) -> Self
Returns the complement of this set of flags.
Specifically, the returned set contains all the flags which are
not set in self
, but which are allowed for this type.
Alternatively, it can be thought of as the set difference
between Self::all()
and self
(e.g. Self::all() - self
)
This is equivalent to using the !
operator (e.g.
ops::Not
), as in !flags
.
source§impl ElementSelectorFlags
impl ElementSelectorFlags
sourcepub const fn iter(&self) -> Iter<ElementSelectorFlags>
pub const fn iter(&self) -> Iter<ElementSelectorFlags>
Iterate over enabled flag values.
sourcepub const fn iter_names(&self) -> IterNames<ElementSelectorFlags>
pub const fn iter_names(&self) -> IterNames<ElementSelectorFlags>
Iterate over enabled flag values with their stringified names.
source§impl ElementSelectorFlags
impl ElementSelectorFlags
sourcepub fn for_self(self) -> ElementSelectorFlags
pub fn for_self(self) -> ElementSelectorFlags
Returns the subset of flags that apply to the element.
sourcepub fn for_parent(self) -> ElementSelectorFlags
pub fn for_parent(self) -> ElementSelectorFlags
Returns the subset of flags that apply to the parent.
Trait Implementations§
source§impl Binary for ElementSelectorFlags
impl Binary for ElementSelectorFlags
source§impl BitAndAssign<ElementSelectorFlags> for ElementSelectorFlags
impl BitAndAssign<ElementSelectorFlags> for ElementSelectorFlags
source§fn bitand_assign(&mut self, other: Self)
fn bitand_assign(&mut self, other: Self)
Disables all flags disabled in the set.
source§impl BitOr<ElementSelectorFlags> for ElementSelectorFlags
impl BitOr<ElementSelectorFlags> for ElementSelectorFlags
source§fn bitor(self, other: ElementSelectorFlags) -> Self
fn bitor(self, other: ElementSelectorFlags) -> Self
Returns the union of the two sets of flags.
§type Output = ElementSelectorFlags
type Output = ElementSelectorFlags
|
operator.source§impl BitOrAssign<ElementSelectorFlags> for ElementSelectorFlags
impl BitOrAssign<ElementSelectorFlags> for ElementSelectorFlags
source§fn bitor_assign(&mut self, other: Self)
fn bitor_assign(&mut self, other: Self)
Adds the set of flags.
source§impl BitXorAssign<ElementSelectorFlags> for ElementSelectorFlags
impl BitXorAssign<ElementSelectorFlags> for ElementSelectorFlags
source§fn bitxor_assign(&mut self, other: Self)
fn bitxor_assign(&mut self, other: Self)
Toggles the set of flags.
source§impl Clone for ElementSelectorFlags
impl Clone for ElementSelectorFlags
source§fn clone(&self) -> ElementSelectorFlags
fn clone(&self) -> ElementSelectorFlags
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Extend<ElementSelectorFlags> for ElementSelectorFlags
impl Extend<ElementSelectorFlags> for ElementSelectorFlags
source§fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
source§fn extend_one(&mut self, item: A)
fn extend_one(&mut self, item: A)
extend_one
)source§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
extend_one
)source§impl Flags for ElementSelectorFlags
impl Flags for ElementSelectorFlags
source§const FLAGS: &'static [Flag<ElementSelectorFlags>] = _
const FLAGS: &'static [Flag<ElementSelectorFlags>] = _
source§fn from_bits_retain(bits: usize) -> ElementSelectorFlags
fn from_bits_retain(bits: usize) -> ElementSelectorFlags
source§fn from_bits(bits: Self::Bits) -> Option<Self>
fn from_bits(bits: Self::Bits) -> Option<Self>
source§fn from_bits_truncate(bits: Self::Bits) -> Self
fn from_bits_truncate(bits: Self::Bits) -> Self
source§fn iter_names(&self) -> IterNames<Self>
fn iter_names(&self) -> IterNames<Self>
source§fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
fn intersects(&self, other: Self) -> boolwhere Self: Sized,
true
if there are flags common to both self
and other
.source§fn contains(&self, other: Self) -> boolwhere
Self: Sized,
fn contains(&self, other: Self) -> boolwhere Self: Sized,
true
if all of the flags in other
are contained within self
.source§fn set(&mut self, other: Self, value: bool)where
Self: Sized,
fn set(&mut self, other: Self, value: bool)where Self: Sized,
source§fn intersection(self, other: Self) -> Self
fn intersection(self, other: Self) -> Self
source§fn difference(self, other: Self) -> Self
fn difference(self, other: Self) -> Self
source§fn symmetric_difference(self, other: Self) -> Self
fn symmetric_difference(self, other: Self) -> Self
source§fn complement(self) -> Self
fn complement(self) -> Self
source§impl FromIterator<ElementSelectorFlags> for ElementSelectorFlags
impl FromIterator<ElementSelectorFlags> for ElementSelectorFlags
source§fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
source§impl IntoIterator for ElementSelectorFlags
impl IntoIterator for ElementSelectorFlags
source§impl LowerHex for ElementSelectorFlags
impl LowerHex for ElementSelectorFlags
source§impl Not for ElementSelectorFlags
impl Not for ElementSelectorFlags
source§impl Octal for ElementSelectorFlags
impl Octal for ElementSelectorFlags
source§impl PublicFlags for ElementSelectorFlags
impl PublicFlags for ElementSelectorFlags
source§impl SubAssign<ElementSelectorFlags> for ElementSelectorFlags
impl SubAssign<ElementSelectorFlags> for ElementSelectorFlags
source§fn sub_assign(&mut self, other: Self)
fn sub_assign(&mut self, other: Self)
Disables all flags enabled in the set.