Struct font_types::Nullable

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pub struct Nullable<T>(_);

Expand description

An offset of a given width for which NULL (zero) is a valid value.

Implementations

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impl<T> Nullable<T>

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pub fn offset(&self) -> &T

Return a reference to the inner offset

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impl<T: PartialEq<u32>> Nullable<T>

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pub fn is_null(&self) -> bool

Trait Implementations

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impl<T: Clone> Clone for Nullable<T>

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fn clone(&self) -> Nullable<T>

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> Debug for Nullable<T>

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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: PartialEq<u32>> PartialEq<u32> for Nullable<T>

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fn eq(&self, other: &u32) -> 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<T: Scalar> Scalar for Nullable<T>

type Raw = <T as Scalar>::Raw

The raw byte representation of this type.

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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 to_raw(self) -> Self::Raw

Encode this type as raw big-endian bytes

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impl<T: Copy> Copy for Nullable<T>

Auto Trait Implementations

impl<T> RefUnwindSafe for Nullable<T>where
T: RefUnwindSafe,

impl<T> Send for Nullable<T>where
T: Send,

impl<T> Sync for Nullable<T>where
T: Sync,

impl<T> Unpin for Nullable<T>where
T: Unpin,

impl<T> UnwindSafe for Nullable<T>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 font_types::Nullable

Implementations

impl<T> Nullable<T>

pub fn offset(&self) -> &T

impl<T: PartialEq<u32>> Nullable<T>

pub fn is_null(&self) -> bool

Trait Implementations

impl<T: Clone> Clone for Nullable<T>

fn clone(&self) -> Nullable<T>

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

impl<T: Debug> Debug for Nullable<T>

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

impl<T: PartialEq<u32>> PartialEq<u32> for Nullable<T>

fn eq(&self, other: &u32) -> bool

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

impl<T: Scalar> Scalar for Nullable<T>

type Raw = <T as Scalar>::Raw

fn from_raw(raw: Self::Raw) -> Self

fn to_raw(self) -> Self::Raw

impl<T: Copy> Copy for Nullable<T>

Auto Trait Implementations

impl<T> RefUnwindSafe for Nullable<T>where T: RefUnwindSafe,

impl<T> Send for Nullable<T>where T: Send,

impl<T> Sync for Nullable<T>where T: Sync,

impl<T> Unpin for Nullable<T>where T: Unpin,

impl<T> UnwindSafe for Nullable<T>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<T> RefUnwindSafe for Nullable<T>where
T: RefUnwindSafe,

impl<T> Send for Nullable<T>where
T: Send,

impl<T> Sync for Nullable<T>where
T: Sync,

impl<T> Unpin for Nullable<T>where
T: Unpin,

impl<T> UnwindSafe for Nullable<T>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>,