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DataHandle

eye_declare::children

Struct DataHandle 

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pub struct DataHandle;
Expand description

No-op handle returned when adding data children (e.g., Span) to a custom collector.

Provides .key() and .width() methods that silently do nothing, so the element! macro’s chaining syntax compiles in all contexts. Keys and width constraints are only meaningful on Elements entries.

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impl DataHandle

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pub fn key(self, _key: impl Into<String>) -> Self

No-op — keys are only meaningful on Elements entries.

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pub fn width(self, _constraint: WidthConstraint) -> Self

No-op — width constraints are only meaningful on Elements entries.

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Blanket Implementations§

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impl<T, V> AddTo<DataChildren<T>> for V
where V: Into<T>,

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type Handle<'a> = DataHandle where T: 'a

Handle returned after adding. Supports .key() / .width() chaining.
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fn add_to(self, collector: &mut DataChildren<T>) -> DataHandle

Add this value to the collector, returning a handle for chaining .key() and .width().
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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, 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, 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.