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pub enum State {
    None,
    Some(Box<dyn Any>),
}
Expand description

The internal State of a widget.

Variants

None

No meaningful internal state.

Some(Box<dyn Any>)

Some meaningful internal state.

Implementations

Creates a new State.

Downcasts the State to T and returns a reference to it.

Panics

This method will panic if the downcast fails or the State is State::None.

Downcasts the State to T and returns a mutable reference to it.

Panics

This method will panic if the downcast fails or the State is State::None.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.