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OptionAdd

gstreamer::prelude

Trait OptionAdd 

pub trait OptionAdd<Rhs = Self, InnerRhs = Rhs> {
    type Output;

    // Required method
    fn opt_add(self, rhs: Rhs) -> Option<Self::Output>;
}
Expand description

Trait for values and Options addition.

Implementing this trait leads to the following auto-implementations:

  • OptionAdd<Option<InnerRhs>> for T.
  • OptionAdd<Rhs> for Option<T>.
  • OptionAdd<Option<InnerRhs>> for Option<T>.
  • … and some variants with references.

This trait is auto-implemented for OptionOperations types implementing Add<Rhs>.

Required Associated Types§

type Output

The resulting inner type after applying the addition.

Required Methods§

fn opt_add(self, rhs: Rhs) -> Option<Self::Output>

Computes the addition.

Returns None if at least one argument is None.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types§

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impl<T, InnerRhs> OptionAdd<&Option<InnerRhs>, InnerRhs> for Option<T>
where T: OptionOperations + OptionAdd<InnerRhs>, InnerRhs: Copy,

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type Output = <T as OptionAdd<InnerRhs>>::Output

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fn opt_add( self, rhs: &Option<InnerRhs>, ) -> Option<<Option<T> as OptionAdd<&Option<InnerRhs>, InnerRhs>>::Output>

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impl<T, InnerRhs> OptionAdd<Option<InnerRhs>, InnerRhs> for Option<T>
where T: OptionOperations + OptionAdd<InnerRhs>,

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type Output = <T as OptionAdd<InnerRhs>>::Output

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fn opt_add( self, rhs: Option<InnerRhs>, ) -> Option<<Option<T> as OptionAdd<Option<InnerRhs>, InnerRhs>>::Output>

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impl<T, Rhs> OptionAdd<Rhs> for Option<T>
where T: OptionOperations + OptionAdd<Rhs>,

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type Output = <T as OptionAdd<Rhs>>::Output

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fn opt_add(self, rhs: Rhs) -> Option<<Option<T> as OptionAdd<Rhs>>::Output>

Implementors§

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impl<T, InnerRhs> OptionAdd<&Option<InnerRhs>, InnerRhs> for T
where T: OptionOperations + OptionAdd<InnerRhs>, InnerRhs: Copy,

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type Output = <T as OptionAdd<InnerRhs>>::Output

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impl<T, InnerRhs> OptionAdd<Option<InnerRhs>, InnerRhs> for T
where T: OptionOperations + OptionAdd<InnerRhs>,

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type Output = <T as OptionAdd<InnerRhs>>::Output

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impl<T, Rhs> OptionAdd<Rhs> for T
where T: OptionOperations + Add<Rhs>,

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type Output = <T as Add<Rhs>>::Output