Struct write_fonts::NullableOffsetMarker

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pub struct NullableOffsetMarker<T, const N: usize = WIDTH_16> { /* private fields */ }

Expand description

An offset subtable which may be null.

The generic const N is the width of the offset, in bytes.

Implementations

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impl<const N: usize, T> NullableOffsetMarker<T, N>

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pub fn is_some(&self) -> bool

true if the offset is non-null

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pub fn is_none(&self) -> bool

true if the offset is null

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pub fn get(&self) -> Option<&T>

Get the object, if it exists.

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pub fn new(obj: Option<T>) -> Self

Trait Implementations

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impl<T: Clone, const N: usize> Clone for NullableOffsetMarker<T, N>

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fn clone(&self) -> NullableOffsetMarker<T, N>

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<T: Debug, const N: usize> Debug for NullableOffsetMarker<T, N>

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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<T: Default, const N: usize> Default for NullableOffsetMarker<T, N>

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fn default() -> NullableOffsetMarker<T, N>

Returns the “default value” for a type. Read more

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impl<const N: usize, T: FontWrite> FontWrite for NullableOffsetMarker<T, N>

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

Write our data and information about offsets into this TableWriter.

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impl<const N: usize, T, U> From<Option<Result<U, ReadError>>> for NullableOffsetMarker<T, N>where
T: FromTableRef,

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fn from(from: Option<Result<U, ReadError>>) -> Self

Converts to this type from the input type.

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impl<T: PartialEq, const N: usize> PartialEq<NullableOffsetMarker<T, N>> for NullableOffsetMarker<T, N>

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fn eq(&self, other: &NullableOffsetMarker<T, N>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

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impl<const N: usize, T: Validate> Validate for NullableOffsetMarker<T, N>

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fn validate_impl(&self, ctx: &mut ValidationCtx)

Validate this table. Read more

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fn validate(&self) -> Result<(), ValidationReport>

Ensure that this table is well-formed, reporting any errors. Read more

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impl<T: Eq, const N: usize> Eq for NullableOffsetMarker<T, N>

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impl<T, const N: usize> StructuralEq for NullableOffsetMarker<T, N>

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impl<T, const N: usize> StructuralPartialEq for NullableOffsetMarker<T, N>

Auto Trait Implementations

impl<T, const N: usize> RefUnwindSafe for NullableOffsetMarker<T, N>where
T: RefUnwindSafe,

impl<T, const N: usize> Send for NullableOffsetMarker<T, N>where
T: Send,

impl<T, const N: usize> Sync for NullableOffsetMarker<T, N>where
T: Sync,

impl<T, const N: usize> Unpin for NullableOffsetMarker<T, N>where
T: Unpin,

impl<T, const N: usize> UnwindSafe for NullableOffsetMarker<T, N>where
T: UnwindSafe,

Blanket Implementations

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impl<T> Any for Twhere
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 Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

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 Twhere
T: Clone,

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 for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct write_fonts::NullableOffsetMarker

Implementations

impl<const N: usize, T> NullableOffsetMarker<T, N>

pub fn is_some(&self) -> bool

pub fn is_none(&self) -> bool

pub fn get(&self) -> Option<&T>

pub fn get_mut(&mut self) -> Option<&mut T>

pub fn set(&mut self, obj: T)

pub fn clear(&mut self)

impl<const N: usize, T> NullableOffsetMarker<T, N>

pub fn new(obj: Option<T>) -> Self

Trait Implementations

impl<T: Clone, const N: usize> Clone for NullableOffsetMarker<T, N>

fn clone(&self) -> NullableOffsetMarker<T, N>

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

impl<T: Debug, const N: usize> Debug for NullableOffsetMarker<T, N>

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

impl<T: Default, const N: usize> Default for NullableOffsetMarker<T, N>

fn default() -> NullableOffsetMarker<T, N>

impl<const N: usize, T: FontWrite> FontWrite for NullableOffsetMarker<T, N>

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

impl<const N: usize, T, U> From<Option<Result<U, ReadError>>> for NullableOffsetMarker<T, N>where T: FromTableRef<U>,

fn from(from: Option<Result<U, ReadError>>) -> Self

impl<T: PartialEq, const N: usize> PartialEq<NullableOffsetMarker<T, N>> for NullableOffsetMarker<T, N>

fn eq(&self, other: &NullableOffsetMarker<T, N>) -> bool

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

impl<const N: usize, T: Validate> Validate for NullableOffsetMarker<T, N>

fn validate_impl(&self, ctx: &mut ValidationCtx)

fn validate(&self) -> Result<(), ValidationReport>

impl<T: Eq, const N: usize> Eq for NullableOffsetMarker<T, N>

impl<T, const N: usize> StructuralEq for NullableOffsetMarker<T, N>

impl<T, const N: usize> StructuralPartialEq for NullableOffsetMarker<T, N>

Auto Trait Implementations

impl<T, const N: usize> RefUnwindSafe for NullableOffsetMarker<T, N>where T: RefUnwindSafe,

impl<T, const N: usize> Send for NullableOffsetMarker<T, N>where T: Send,

impl<T, const N: usize> Sync for NullableOffsetMarker<T, N>where T: Sync,

impl<T, const N: usize> Unpin for NullableOffsetMarker<T, N>where T: Unpin,

impl<T, const N: usize> UnwindSafe for NullableOffsetMarker<T, N>where T: UnwindSafe,

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<const N: usize, T, U> From<Option<Result<U, ReadError>>> for NullableOffsetMarker<T, N>where
T: FromTableRef<U>,

impl<T, const N: usize> RefUnwindSafe for NullableOffsetMarker<T, N>where
T: RefUnwindSafe,

impl<T, const N: usize> Send for NullableOffsetMarker<T, N>where
T: Send,

impl<T, const N: usize> Sync for NullableOffsetMarker<T, N>where
T: Sync,

impl<T, const N: usize> Unpin for NullableOffsetMarker<T, N>where
T: Unpin,

impl<T, const N: usize> UnwindSafe for NullableOffsetMarker<T, N>where
T: UnwindSafe,

impl<T> Any for Twhere
T: 'static + ?Sized,

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

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

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,