#[repr(C)]
pub struct Callback<Arg: ?Sized, Ret = ()> { /* private fields */ }
Expand description
A Callback that can be connected to a handler.
The Arg represents the argument. It should always be a tuple
Call the callback with the given argument.
Set an handler to be called when the callback is called
There can only be one single handler per callback.
Returns the “default value” for a type.
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Immutably borrows from an owned value.
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Mutably borrows from an owned value.
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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.