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Maybe

ferroui_base::data::core

Struct Maybe 

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pub struct Maybe<T>(/* private fields */);
Expand description

A property of type Option<T>: None is null in bindings.

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impl<T: PropertyValue> PropertyKind for Maybe<T>

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type Typed = Option<T>

The type the property’s accessors work with.
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fn value_type() -> ValueType

The value type reported for the property.
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fn register()

Called once when a property of this kind is described.
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fn to_untyped(value: Option<T>) -> Option<BoxedValue>

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fn from_untyped(value: Option<&BoxedValue>) -> Option<Option<T>>

Auto Trait Implementations§

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impl<T> Freeze for Maybe<T>
where PhantomData<T>: Freeze,

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impl<T> RefUnwindSafe for Maybe<T>
where PhantomData<T>: RefUnwindSafe,

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impl<T> Send for Maybe<T>
where PhantomData<T>: Send,

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impl<T> Sync for Maybe<T>
where PhantomData<T>: Sync,

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impl<T> Unpin for Maybe<T>
where PhantomData<T>: Unpin,

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impl<T> UnsafeUnpin for Maybe<T>
where PhantomData<T>: UnsafeUnpin,

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impl<T> UnwindSafe for Maybe<T>
where PhantomData<T>: UnwindSafe,

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> ClassDefaults for T
where T: ?Sized,

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fn static_constructor()

The static constructor of a type: work done once per thread, after the properties of the type are registered and before its first instance exists (class handlers, affects_render, metadata overrides). 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, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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.