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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_vertical_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 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<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> 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<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.

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

impl<T> MaybeSendSync for T