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Empty

laser_pdf::elements::empty

Struct Empty

pub struct Empty;

Expand description

An element with a zero size.

Compared to crate::elements::none::NoneElement it does not trigger collapse behavior.

Trait Implementations§

impl Element for Empty

fn first_location_usage( &self, _ctx: FirstLocationUsageCtx<'_>, ) -> FirstLocationUsage

fn measure(&self, _ctx: MeasureCtx<'_>) -> ElementSize

fn draw(&self, _ctx: DrawCtx<'_, '_>) -> ElementSize

fn with_padding_top(self, padding: f32) -> Padding<Self>
where Self: Sized,

fn with_padding_bottom(self, padding: f32) -> Padding<Self>
where Self: Sized,

fn with_vertical_padding(self, padding: f32) -> Padding<Self>
where Self: Sized,

fn with_padding_left(self, padding: f32) -> Padding<Self>
where Self: Sized,

fn with_padding_right(self, padding: f32) -> Padding<Self>
where Self: Sized,

fn with_horizontal_padding(self, padding: f32) -> Padding<Self>
where Self: Sized,

fn debug(self, color: u8) -> Debug<Self>
where Self: Sized,

Auto Trait Implementations§

impl Freeze for Empty

impl RefUnwindSafe for Empty

impl Send for Empty

impl Sync for Empty

impl Unpin for Empty

impl UnsafeUnpin for Empty

impl UnwindSafe for Empty

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

impl<T> ErasedDestructor for T
where T: 'static,

impl<T> Finish for T

fn finish(self)

Does nothing but move self, equivalent to drop.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> MaybeSendSync for T

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

impl<U, T> ToOwnedObj<U> for T
where U: FromObjRef<T>,

fn to_owned_obj(&self, data: FontData<'_>) -> U

Convert this type into T, using the provided data to resolve any offsets.

impl<U, T> ToOwnedTable<U> for T
where U: FromTableRef<T>,

fn to_owned_table(&self) -> U

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.