zng_app::widget::builder

Struct PropertyInfo

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pub struct PropertyInfo {
    pub group: NestGroup,
    pub capture: bool,
    pub id: PropertyId,
    pub name: &'static str,
    pub location: SourceLocation,
    pub default: Option<fn() -> Box<dyn PropertyArgs>>,
    pub new: fn(_: PropertyNewArgs) -> Box<dyn PropertyArgs>,
    pub inputs: Box<[PropertyInput]>,
}
Expand description

Property info.

You can use the property_info! macro to retrieve a property’s info.

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§group: NestGroup

Property nest position group.

§capture: bool

Property is “capture-only”, no standalone implementation is provided, instantiating does not add a node, just returns the child.

Note that all properties can be captured, but if this is false they provide an implementation that works standalone.

§id: PropertyId

Unique ID that identifies the property implementation.

§name: &'static str

Property name.

§location: SourceLocation

Property declaration location.

§default: Option<fn() -> Box<dyn PropertyArgs>>

New default property args.

This is Some(_) only if the #[property(_, default(..))] was set in the property declaration.

§new: fn(_: PropertyNewArgs) -> Box<dyn PropertyArgs>

New property args from dynamically typed args.

§Instance

This function outputs property args, not a property node instance. You can use PropertyArgs::instantiate on the output to generate a property node from the args. If the property is known at compile time you can use property_args! to generate args instead, and you can just call the property function directly to instantiate a node.

§inputs: Box<[PropertyInput]>

Property inputs info.

Implementations§

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impl PropertyInfo

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pub fn input_idx(&self, name: &str) -> Option<usize>

Gets the index that can be used to get a named property input value in PropertyArgs.

Trait Implementations§

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impl Clone for PropertyInfo

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fn clone(&self) -> PropertyInfo

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 Debug for PropertyInfo

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

Formats the value using the given formatter. Read more

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoEither for T

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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
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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
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for T
where T: Clone,

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

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type Error = Infallible

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

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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> StateValue for T
where T: Any + Send + Sync,