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OptionSubAssign

gstreamer::prelude

Trait OptionSubAssign 

pub trait OptionSubAssign<Rhs = Self, InnerRhs = Rhs> {
    // Required method
    fn opt_sub_assign(&mut self, rhs: Rhs);
}
Expand description

Trait for values and Options substraction assignment.

Implementing this trait leads to the following auto-implementations:

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

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

Required Methods§

fn opt_sub_assign(&mut self, rhs: Rhs)

Performs the substraction assignment.

self is unchanged if rhs 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> OptionSubAssign<&Option<InnerRhs>, InnerRhs> for Option<T>
where T: OptionOperations + OptionSubAssign<InnerRhs>, InnerRhs: Copy,

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fn opt_sub_assign(&mut self, rhs: &Option<InnerRhs>)

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

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fn opt_sub_assign(&mut self, rhs: Option<InnerRhs>)

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

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fn opt_sub_assign(&mut self, rhs: Rhs)

Implementors§

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

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

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impl<T, Rhs> OptionSubAssign<Rhs> for T
where T: OptionOperations + SubAssign<Rhs>,