read_fonts::tables::variations

Struct EntryFormat

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pub struct EntryFormat { /* private fields */ }
Expand description

Entry format for a DeltaSetIndexMap.

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impl EntryFormat

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pub const INNER_INDEX_BIT_COUNT_MASK: Self = _

Mask for the low 4 bits, which give the count of bits minus one that are used in each entry for the inner-level index.

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pub const MAP_ENTRY_SIZE_MASK: Self = _

Mask for bits that indicate the size in bytes minus one of each entry.

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impl EntryFormat

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pub const fn empty() -> Self

Returns an empty set of flags.

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pub const fn all() -> Self

Returns the set containing all flags.

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pub const fn bits(&self) -> u8

Returns the raw value of the flags currently stored.

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pub const fn from_bits(bits: u8) -> Option<Self>

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

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pub const fn from_bits_truncate(bits: u8) -> Self

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

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pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

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

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

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

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

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

Inserts the specified flags in-place.

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

Removes the specified flags in-place.

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

Toggles the specified flags in-place.

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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.

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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.

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

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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.

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impl EntryFormat

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pub fn entry_size(self) -> u8

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pub fn bit_count(self) -> u8

Trait Implementations§

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impl Binary for EntryFormat

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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 BitAnd for EntryFormat

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

Returns the intersection between the two sets of flags.

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type Output = EntryFormat

The resulting type after applying the & operator.
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impl BitAndAssign for EntryFormat

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fn bitand_assign(&mut self, other: Self)

Disables all flags disabled in the set.

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impl BitOr for EntryFormat

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fn bitor(self, other: EntryFormat) -> Self

Returns the union of the two sets of flags.

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type Output = EntryFormat

The resulting type after applying the | operator.
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impl BitOrAssign for EntryFormat

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fn bitor_assign(&mut self, other: Self)

Adds the set of flags.

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impl BitXor for EntryFormat

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

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

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type Output = EntryFormat

The resulting type after applying the ^ operator.
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impl BitXorAssign for EntryFormat

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fn bitxor_assign(&mut self, other: Self)

Toggles the set of flags.

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impl Clone for EntryFormat

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fn clone(&self) -> EntryFormat

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 EntryFormat

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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 Default for EntryFormat

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fn default() -> EntryFormat

Returns the “default value” for a type. Read more
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impl<'a> From<EntryFormat> for FieldType<'a>

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fn from(src: EntryFormat) -> FieldType<'a>

Converts to this type from the input type.
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impl Hash for EntryFormat

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl LowerHex for EntryFormat

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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 Not for EntryFormat

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fn not(self) -> Self

Returns the complement of this set of flags.

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type Output = EntryFormat

The resulting type after applying the ! operator.
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impl Octal for EntryFormat

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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 Ord for EntryFormat

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

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for EntryFormat

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for EntryFormat

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

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

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type Raw = <u8 as Scalar>::Raw

The raw byte representation of this type.
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fn to_raw(self) -> Self::Raw

Encode this type as raw big-endian bytes
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fn from_raw(raw: Self::Raw) -> Self

Create an instance of this type from raw big-endian bytes
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fn read(slice: &[u8]) -> Option<Self>

Attempt to read a scalar from a slice. Read more
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impl Sub for EntryFormat

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

Returns the set difference of the two sets of flags.

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type Output = EntryFormat

The resulting type after applying the - operator.
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impl SubAssign for EntryFormat

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fn sub_assign(&mut self, other: Self)

Disables all flags enabled in the set.

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impl UpperHex for EntryFormat

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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 Zeroable for EntryFormat

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fn zeroed() -> Self

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impl AnyBitPattern for EntryFormat

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impl Copy for EntryFormat

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impl Eq for EntryFormat

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impl StructuralPartialEq for EntryFormat

Auto Trait Implementations§

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,

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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,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CheckedBitPattern for T
where T: AnyBitPattern,

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type Bits = T

Self must have the same layout as the specified Bits except for the possible invalid bit patterns being checked during is_valid_bit_pattern.
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fn is_valid_bit_pattern(_bits: &T) -> bool

If this function returns true, then it must be valid to reinterpret bits as &Self.
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> FixedSize for T
where T: Scalar,

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const RAW_BYTE_LEN: usize = _

The raw size of this type, in bytes. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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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,

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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)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.