#[repr(C)]pub struct WillChangeBits {
bits: u16,
}
Expand description
The change bits that we care about.
Fields§
§bits: u16
Implementations§
source§impl WillChangeBits
impl WillChangeBits
sourcepub const STACKING_CONTEXT_UNCONDITIONAL: Self = _
pub const STACKING_CONTEXT_UNCONDITIONAL: Self = _
Whether a property which can create a stacking context on any box will change.
sourcepub const PERSPECTIVE: Self = _
pub const PERSPECTIVE: Self = _
Whether perspective
will change.
sourcepub const FIXPOS_CB_NON_SVG: Self = _
pub const FIXPOS_CB_NON_SVG: Self = _
Whether any property which creates a containing block for non-svg text frames will change.
sourcepub const fn from_bits(bits: u16) -> Option<Self>
pub const fn from_bits(bits: u16) -> 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: u16) -> Self
pub const fn from_bits_truncate(bits: u16) -> Self
Convert from underlying bit representation, dropping any bits that do not correspond to flags.
sourcepub const unsafe fn from_bits_unchecked(bits: u16) -> Self
pub const unsafe fn from_bits_unchecked(bits: u16) -> Self
Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).
Safety
The caller of the bitflags!
macro can chose to allow or
disallow extra bits for their bitflags type.
The caller of from_bits_unchecked()
has to ensure that
all bits correspond to a defined flag or that extra bits
are valid for this bitflags type.
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
.
Trait Implementations§
source§impl Binary for WillChangeBits
impl Binary for WillChangeBits
source§impl BitAnd<WillChangeBits> for WillChangeBits
impl BitAnd<WillChangeBits> for WillChangeBits
source§impl BitAndAssign<WillChangeBits> for WillChangeBits
impl BitAndAssign<WillChangeBits> for WillChangeBits
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<WillChangeBits> for WillChangeBits
impl BitOr<WillChangeBits> for WillChangeBits
source§fn bitor(self, other: WillChangeBits) -> Self
fn bitor(self, other: WillChangeBits) -> Self
Returns the union of the two sets of flags.
§type Output = WillChangeBits
type Output = WillChangeBits
|
operator.source§impl BitOrAssign<WillChangeBits> for WillChangeBits
impl BitOrAssign<WillChangeBits> for WillChangeBits
source§fn bitor_assign(&mut self, other: Self)
fn bitor_assign(&mut self, other: Self)
Adds the set of flags.
source§impl BitXor<WillChangeBits> for WillChangeBits
impl BitXor<WillChangeBits> for WillChangeBits
source§impl BitXorAssign<WillChangeBits> for WillChangeBits
impl BitXorAssign<WillChangeBits> for WillChangeBits
source§fn bitxor_assign(&mut self, other: Self)
fn bitxor_assign(&mut self, other: Self)
Toggles the set of flags.
source§impl Clone for WillChangeBits
impl Clone for WillChangeBits
source§fn clone(&self) -> WillChangeBits
fn clone(&self) -> WillChangeBits
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for WillChangeBits
impl Debug for WillChangeBits
source§impl Default for WillChangeBits
impl Default for WillChangeBits
source§fn default() -> WillChangeBits
fn default() -> WillChangeBits
source§impl Extend<WillChangeBits> for WillChangeBits
impl Extend<WillChangeBits> for WillChangeBits
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 FromIterator<WillChangeBits> for WillChangeBits
impl FromIterator<WillChangeBits> for WillChangeBits
source§fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
source§impl Hash for WillChangeBits
impl Hash for WillChangeBits
source§impl LowerHex for WillChangeBits
impl LowerHex for WillChangeBits
source§impl MallocSizeOf for WillChangeBits
impl MallocSizeOf for WillChangeBits
source§fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize
fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize
source§impl Not for WillChangeBits
impl Not for WillChangeBits
source§impl Octal for WillChangeBits
impl Octal for WillChangeBits
source§impl Ord for WillChangeBits
impl Ord for WillChangeBits
source§fn cmp(&self, other: &WillChangeBits) -> Ordering
fn cmp(&self, other: &WillChangeBits) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere Self: Sized,
source§impl PartialEq<WillChangeBits> for WillChangeBits
impl PartialEq<WillChangeBits> for WillChangeBits
source§fn eq(&self, other: &WillChangeBits) -> bool
fn eq(&self, other: &WillChangeBits) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<WillChangeBits> for WillChangeBits
impl PartialOrd<WillChangeBits> for WillChangeBits
source§fn partial_cmp(&self, other: &WillChangeBits) -> Option<Ordering>
fn partial_cmp(&self, other: &WillChangeBits) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl SpecifiedValueInfo for WillChangeBits
impl SpecifiedValueInfo for WillChangeBits
source§const SUPPORTED_TYPES: u8 = 0u8
const SUPPORTED_TYPES: u8 = 0u8
source§impl Sub<WillChangeBits> for WillChangeBits
impl Sub<WillChangeBits> for WillChangeBits
source§impl SubAssign<WillChangeBits> for WillChangeBits
impl SubAssign<WillChangeBits> for WillChangeBits
source§fn sub_assign(&mut self, other: Self)
fn sub_assign(&mut self, other: Self)
Disables all flags enabled in the set.
source§impl ToComputedValue for WillChangeBitswhere
u16: ToComputedValue<ComputedValue = u16>,
impl ToComputedValue for WillChangeBitswhere u16: ToComputedValue<ComputedValue = u16>,
§type ComputedValue = WillChangeBits
type ComputedValue = WillChangeBits
source§fn from_computed_value(from: &Self::ComputedValue) -> Self
fn from_computed_value(from: &Self::ComputedValue) -> Self
source§fn to_computed_value(&self, context: &Context<'_>) -> Self::ComputedValue
fn to_computed_value(&self, context: &Context<'_>) -> Self::ComputedValue
Context
.source§impl ToResolvedValue for WillChangeBitswhere
u16: ToResolvedValue<ResolvedValue = u16>,
impl ToResolvedValue for WillChangeBitswhere u16: ToResolvedValue<ResolvedValue = u16>,
§type ResolvedValue = WillChangeBits
type ResolvedValue = WillChangeBits
source§fn from_resolved_value(from: Self::ResolvedValue) -> Self
fn from_resolved_value(from: Self::ResolvedValue) -> Self
source§fn to_resolved_value(self, context: &Context<'_>) -> Self::ResolvedValue
fn to_resolved_value(self, context: &Context<'_>) -> Self::ResolvedValue
source§impl ToShmem for WillChangeBits
impl ToShmem for WillChangeBits
source§impl UpperHex for WillChangeBits
impl UpperHex for WillChangeBits
impl Copy for WillChangeBits
impl Eq for WillChangeBits
impl StructuralEq for WillChangeBits
impl StructuralPartialEq for WillChangeBits
Auto Trait Implementations§
impl RefUnwindSafe for WillChangeBits
impl Send for WillChangeBits
impl Sync for WillChangeBits
impl Unpin for WillChangeBits
impl UnwindSafe for WillChangeBits
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.source§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.