Struct Features
pub struct Features(/* private fields */);Available on crate features
__css and css_compat only.Implementations§
§impl Features
impl Features
pub const NESTING: Features = _
pub const CUSTOM_MEDIA: Features = _
pub const MEDIA_QUERY_RANGES: Features = _
pub const COLOR_HEX_ALPHA: Features = _
pub const COLOR_ALPHA_PARAMETER: Features = _
pub const COLOR_SPACE_SEPARATED_PARAMETERS: Features = _
pub const COLOR_LEGACY_RGB_AND_HSL: Features = _
pub const COLOR_HWB: Features = _
pub const SELECTOR_NOT: Features = _
§impl Features
impl Features
pub const fn bits(&self) -> u64
pub const fn bits(&self) -> u64
Get the underlying bits value.
The returned value is exactly the bits set in this flags value.
pub const fn from_bits(bits: u64) -> Option<Features>
pub const fn from_bits(bits: u64) -> Option<Features>
Convert from a bits value.
This method will return None if any unknown bits are set.
pub const fn from_bits_truncate(bits: u64) -> Features
pub const fn from_bits_truncate(bits: u64) -> Features
Convert from a bits value, unsetting any unknown bits.
pub const fn from_bits_retain(bits: u64) -> Features
pub const fn from_bits_retain(bits: u64) -> Features
Convert from a bits value exactly.
pub fn from_name(name: &str) -> Option<Features>
pub fn from_name(name: &str) -> Option<Features>
Get a flags value with the bits of a flag with the given name set.
This method will return None if name is empty or doesn’t
correspond to any named flag.
pub const fn intersects(&self, other: Features) -> bool
pub const fn intersects(&self, other: Features) -> bool
Whether any set bits in a source flags value are also set in a target flags value.
pub const fn contains(&self, other: Features) -> bool
pub const fn contains(&self, other: Features) -> bool
Whether all set bits in a source flags value are also set in a target flags value.
pub fn remove(&mut self, other: Features)
pub fn remove(&mut self, other: Features)
The intersection of a source flags value with the complement of a target flags value (&!).
This method is not equivalent to self & !other when other has unknown bits set.
remove won’t truncate other, but the ! operator will.
pub fn toggle(&mut self, other: Features)
pub fn toggle(&mut self, other: Features)
The bitwise exclusive-or (^) of the bits in two flags values.
pub fn set(&mut self, other: Features, value: bool)
pub fn set(&mut self, other: Features, value: bool)
Call insert when value is true or remove when value is false.
pub const fn intersection(self, other: Features) -> Features
pub const fn intersection(self, other: Features) -> Features
The bitwise and (&) of the bits in two flags values.
pub const fn union(self, other: Features) -> Features
pub const fn union(self, other: Features) -> Features
The bitwise or (|) of the bits in two flags values.
pub const fn difference(self, other: Features) -> Features
pub const fn difference(self, other: Features) -> Features
The intersection of a source flags value with the complement of a target flags value (&!).
This method is not equivalent to self & !other when other has unknown bits set.
difference won’t truncate other, but the ! operator will.
pub const fn symmetric_difference(self, other: Features) -> Features
pub const fn symmetric_difference(self, other: Features) -> Features
The bitwise exclusive-or (^) of the bits in two flags values.
pub const fn complement(self) -> Features
pub const fn complement(self) -> Features
The bitwise negation (!) of the bits in a flags value, truncating the result.
§impl Features
impl Features
pub const fn iter(&self) -> Iter<Features>
pub const fn iter(&self) -> Iter<Features>
Yield a set of contained flags values.
Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.
pub const fn iter_names(&self) -> IterNames<Features>
pub const fn iter_names(&self) -> IterNames<Features>
Yield a set of contained named flags values.
This method is like iter, except only yields bits in contained named flags.
Any unknown bits, or bits not corresponding to a contained flag will not be yielded.
Trait Implementations§
§impl BitAndAssign for Features
impl BitAndAssign for Features
§fn bitand_assign(&mut self, other: Features)
fn bitand_assign(&mut self, other: Features)
The bitwise and (&) of the bits in two flags values.
§impl BitOrAssign for Features
impl BitOrAssign for Features
§fn bitor_assign(&mut self, other: Features)
fn bitor_assign(&mut self, other: Features)
The bitwise or (|) of the bits in two flags values.
§impl BitXorAssign for Features
impl BitXorAssign for Features
§fn bitxor_assign(&mut self, other: Features)
fn bitxor_assign(&mut self, other: Features)
The bitwise exclusive-or (^) of the bits in two flags values.
§impl Extend<Features> for Features
impl Extend<Features> for Features
§fn extend<T>(&mut self, iterator: T)where
T: IntoIterator<Item = Features>,
fn extend<T>(&mut self, iterator: T)where
T: IntoIterator<Item = Features>,
The bitwise or (|) of the bits in each flags value.
source§fn extend_one(&mut self, item: A)
fn extend_one(&mut self, item: A)
🔬This is a nightly-only experimental API. (
extend_one)Extends a collection with exactly one element.
source§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
🔬This is a nightly-only experimental API. (
extend_one)Reserves capacity in a collection for the given number of additional elements. Read more
§impl Flags for Features
impl Flags for Features
§fn from_bits_retain(bits: u64) -> Features
fn from_bits_retain(bits: u64) -> Features
Convert from a bits value exactly.
§fn from_bits_truncate(bits: Self::Bits) -> Self
fn from_bits_truncate(bits: Self::Bits) -> Self
Convert from a bits value, unsetting any unknown bits.
§fn from_name(name: &str) -> Option<Self>
fn from_name(name: &str) -> Option<Self>
Get a flags value with the bits of a flag with the given name set. Read more
§fn iter_names(&self) -> IterNames<Self>
fn iter_names(&self) -> IterNames<Self>
Yield a set of contained named flags values. Read more
§fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
Whether any set bits in a source flags value are also set in a target flags value.
§fn contains(&self, other: Self) -> boolwhere
Self: Sized,
fn contains(&self, other: Self) -> boolwhere
Self: Sized,
Whether all set bits in a source flags value are also set in a target flags value.
§fn insert(&mut self, other: Self)where
Self: Sized,
fn insert(&mut self, other: Self)where
Self: Sized,
The bitwise or (
|) of the bits in two flags values.§fn remove(&mut self, other: Self)where
Self: Sized,
fn remove(&mut self, other: Self)where
Self: Sized,
The intersection of a source flags value with the complement of a target flags value (
&!). Read more§fn toggle(&mut self, other: Self)where
Self: Sized,
fn toggle(&mut self, other: Self)where
Self: Sized,
The bitwise exclusive-or (
^) of the bits in two flags values.§fn set(&mut self, other: Self, value: bool)where
Self: Sized,
fn set(&mut self, other: Self, value: bool)where
Self: Sized,
Call [
Flags::insert] when value is true or [Flags::remove] when value is false.§fn intersection(self, other: Self) -> Self
fn intersection(self, other: Self) -> Self
The bitwise and (
&) of the bits in two flags values.§fn difference(self, other: Self) -> Self
fn difference(self, other: Self) -> Self
The intersection of a source flags value with the complement of a target flags value (
&!). Read more§fn symmetric_difference(self, other: Self) -> Self
fn symmetric_difference(self, other: Self) -> Self
The bitwise exclusive-or (
^) of the bits in two flags values.§fn complement(self) -> Self
fn complement(self) -> Self
The bitwise negation (
!) of the bits in a flags value, truncating the result.§impl FromIterator<Features> for Features
impl FromIterator<Features> for Features
§fn from_iter<T>(iterator: T) -> Featureswhere
T: IntoIterator<Item = Features>,
fn from_iter<T>(iterator: T) -> Featureswhere
T: IntoIterator<Item = Features>,
The bitwise or (|) of the bits in each flags value.
§impl IntoIterator for Features
impl IntoIterator for Features
§impl Sub for Features
impl Sub for Features
§impl SubAssign for Features
impl SubAssign for Features
§fn sub_assign(&mut self, other: Features)
fn sub_assign(&mut self, other: Features)
The intersection of a source flags value with the complement of a target flags value (&!).
This method is not equivalent to self & !other when other has unknown bits set.
difference won’t truncate other, but the ! operator will.
impl Copy for Features
Auto Trait Implementations§
impl Freeze for Features
impl RefUnwindSafe for Features
impl Send for Features
impl Sync for Features
impl Unpin for Features
impl UnwindSafe for Features
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Converts some archived metadata to the pointer metadata for itself.
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.tap_ref_mut() only in debug builds, and is erased in release
builds.§fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
Calls
.tap_deref() only in debug builds, and is erased in release
builds.