IgnorableMetadata

Struct IgnorableMetadata 

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pub struct IgnorableMetadata<T: MetadataKey> {
    pub content: AnyView,
    pub value: T,
}
Expand description

A metadata wrapper that can be safely ignored by renderers if not handled explicitly.

Unlike Metadata<T>, this type won’t panic if not caught by a renderer.

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§content: AnyView

The view content wrapped by this ignorable metadata.

§value: T

The metadata value associated with the content.

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impl<T: MetadataKey> IgnorableMetadata<T>

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pub fn new(content: impl View, value: T) -> Self

Creates a new IgnorableMetadata instance with the specified content and value.

§Arguments
  • content - The view to be wrapped with ignorable metadata.
  • value - The metadata value to associate with the content.

Trait Implementations§

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impl<T: Debug + MetadataKey> Debug for IgnorableMetadata<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: MetadataKey> View for IgnorableMetadata<T>

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fn body(self, _env: &Environment) -> impl View

Build this view and return the content. Read more

Auto Trait Implementations§

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impl<T> Freeze for IgnorableMetadata<T>
where T: Freeze,

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impl<T> !RefUnwindSafe for IgnorableMetadata<T>

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impl<T> !Send for IgnorableMetadata<T>

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impl<T> !Sync for IgnorableMetadata<T>

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

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impl<T> !UnwindSafe for IgnorableMetadata<T>

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> IdentifiableExt for T

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fn use_id<F, Id>(self, f: F) -> UseId<Self, F>
where F: Fn(&Self) -> Id, Id: Ord + Hash,

Wraps the value in a UseId with the provided identification function.
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fn self_id(self) -> SelfId<Self>

Wraps the value in a SelfId, making the value serve as its own identifier.
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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<V> IntoView for V
where V: View,

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type Output = V

The resulting View type after conversion.
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fn into_view(self, _env: &Environment) -> <V as IntoView>::Output

Converts the implementing type into a View. 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.