Struct FeatureLookupsFlags 

pub struct FeatureLookupsFlags { /* private fields */ }

Available on crate feature tables only.

Qualifiers for FeatureLookups.

Implementations

impl FeatureLookupsFlags

pub const ADD_DEFAULT_LOOKUPS: FeatureLookupsFlags

Include the current feature’s lookups as well as conditional lookups.

impl FeatureLookupsFlags

pub const fn empty() -> FeatureLookupsFlags

Returns an empty set of flags.

pub const fn all() -> FeatureLookupsFlags

Returns the set containing all flags.

pub const fn bits(&self) -> u16

Returns the raw value of the flags currently stored.

pub const fn from_bits(bits: u16) -> Option<FeatureLookupsFlags>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub const fn from_bits_truncate(bits: u16) -> FeatureLookupsFlags

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub const fn intersects(&self, other: FeatureLookupsFlags) -> bool

Returns true if there are flags common to both self and other.

pub const fn contains(&self, other: FeatureLookupsFlags) -> bool

Returns true if all of the flags in other are contained within self.

pub fn insert(&mut self, other: FeatureLookupsFlags)

Inserts the specified flags in-place.

pub fn remove(&mut self, other: FeatureLookupsFlags)

Removes the specified flags in-place.

pub fn toggle(&mut self, other: FeatureLookupsFlags)

Toggles the specified flags in-place.

pub const fn intersection( self, other: FeatureLookupsFlags, ) -> FeatureLookupsFlags

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.

pub const fn union(self, other: FeatureLookupsFlags) -> FeatureLookupsFlags

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.

This is equivalent to using the | operator (e.g. ops::BitOr), as in flags | other.

pub const fn difference(self, other: FeatureLookupsFlags) -> FeatureLookupsFlags

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.

Trait Implementations

impl AnyBitPattern for FeatureLookupsFlags

impl Binary for FeatureLookupsFlags

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

Formats the value using the given formatter.

impl BitAnd for FeatureLookupsFlags

fn bitand(self, other: FeatureLookupsFlags) -> FeatureLookupsFlags

Returns the intersection between the two sets of flags.

type Output = FeatureLookupsFlags

The resulting type after applying the & operator.

impl BitAndAssign for FeatureLookupsFlags

fn bitand_assign(&mut self, other: FeatureLookupsFlags)

Disables all flags disabled in the set.

impl BitOr for FeatureLookupsFlags

fn bitor(self, other: FeatureLookupsFlags) -> FeatureLookupsFlags

Returns the union of the two sets of flags.

type Output = FeatureLookupsFlags

The resulting type after applying the | operator.

impl BitOrAssign for FeatureLookupsFlags

fn bitor_assign(&mut self, other: FeatureLookupsFlags)

Adds the set of flags.

impl BitXor for FeatureLookupsFlags

fn bitxor(self, other: FeatureLookupsFlags) -> FeatureLookupsFlags

Returns the left flags, but with all the right flags toggled.

type Output = FeatureLookupsFlags

The resulting type after applying the ^ operator.

impl BitXorAssign for FeatureLookupsFlags

fn bitxor_assign(&mut self, other: FeatureLookupsFlags)

Toggles the set of flags.

impl Clone for FeatureLookupsFlags

fn clone(&self) -> FeatureLookupsFlags

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FeatureLookupsFlags

impl Debug for FeatureLookupsFlags

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

Formats the value using the given formatter.

impl Default for FeatureLookupsFlags

fn default() -> FeatureLookupsFlags

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FeatureLookupsFlags

fn deserialize<__D>( __deserializer: __D, ) -> Result<FeatureLookupsFlags, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for FeatureLookupsFlags

impl FontWrite for FeatureLookupsFlags

fn write_into(&self, writer: &mut TableWriter)

Write our data and information about offsets into this TableWriter.

fn table_type(&self) -> TableType

The type of this table.

impl Hash for FeatureLookupsFlags

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl LowerHex for FeatureLookupsFlags

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

Formats the value using the given formatter.

impl Not for FeatureLookupsFlags

fn not(self) -> FeatureLookupsFlags

Returns the complement of this set of flags.

type Output = FeatureLookupsFlags

The resulting type after applying the ! operator.

impl Octal for FeatureLookupsFlags

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

Formats the value using the given formatter.

impl Ord for FeatureLookupsFlags

fn cmp(&self, other: &FeatureLookupsFlags) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for FeatureLookupsFlags

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for FeatureLookupsFlags

fn partial_cmp(&self, other: &FeatureLookupsFlags) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Scalar for FeatureLookupsFlags

type Raw = <u16 as Scalar>::Raw

The raw byte representation of this type.

fn to_raw(self) -> <FeatureLookupsFlags as Scalar>::Raw

Encode this type as raw big-endian bytes

fn from_raw(raw: <FeatureLookupsFlags as Scalar>::Raw) -> FeatureLookupsFlags

Create an instance of this type from raw big-endian bytes

fn read(slice: &[u8]) -> Option<Self>

Attempt to read a scalar from a slice.

impl Serialize for FeatureLookupsFlags

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FeatureLookupsFlags

impl Sub for FeatureLookupsFlags

fn sub(self, other: FeatureLookupsFlags) -> FeatureLookupsFlags

Returns the set difference of the two sets of flags.

type Output = FeatureLookupsFlags

The resulting type after applying the - operator.

impl SubAssign for FeatureLookupsFlags

fn sub_assign(&mut self, other: FeatureLookupsFlags)

Disables all flags enabled in the set.

impl UpperHex for FeatureLookupsFlags

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

Formats the value using the given formatter.

impl Zeroable for FeatureLookupsFlags

fn zeroed() -> Self

Calls zeroed.