field_ref

Struct OptionFieldRefChain

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pub struct OptionFieldRefChain<FR1: Copy, FR2: Copy>(/* private fields */);
Expand description

A OptionFieldRef which chains two OptionFieldRefs.

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impl<FR1: Copy, FR2: Copy> Clone for OptionFieldRefChain<FR1, FR2>

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'x, T: 'x, U: 'x, V: 'x, FR1, FR2> OptionFieldRef<'x> for OptionFieldRefChain<FR1, FR2>
where FR1: OptionFieldRef<'x, Input = T, Output = U>, FR2: OptionFieldRef<'x, Input = U, Output = V>,

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type Input = T

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type Output = V

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fn get<'a>(&'a self, obj: &'x Self::Input) -> Option<&'x Self::Output>

Get a reference of value in an object to which OptionFieldRef refers. Read more
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fn get_mut<'a>( &'a self, obj: &'x mut Self::Input, ) -> Option<&'x mut Self::Output>

Get a mutable reference of value in an object to which OptionFieldRef refers. Read more
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fn chain<FR, R: 'x>(&self, fr: FR) -> OptionFieldRefChain<Self, FR>
where FR: OptionFieldRef<'x, Input = Self::Output, Output = R> + Copy,

Chains two field references. Read more
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impl<FR1: Copy, FR2: Copy> Copy for OptionFieldRefChain<FR1, FR2>

Auto Trait Implementations§

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impl<FR1, FR2> Freeze for OptionFieldRefChain<FR1, FR2>
where FR1: Freeze, FR2: Freeze,

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impl<FR1, FR2> RefUnwindSafe for OptionFieldRefChain<FR1, FR2>
where FR1: RefUnwindSafe, FR2: RefUnwindSafe,

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impl<FR1, FR2> Send for OptionFieldRefChain<FR1, FR2>
where FR1: Send, FR2: Send,

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impl<FR1, FR2> Sync for OptionFieldRefChain<FR1, FR2>
where FR1: Sync, FR2: Sync,

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impl<FR1, FR2> Unpin for OptionFieldRefChain<FR1, FR2>
where FR1: Unpin, FR2: Unpin,

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impl<FR1, FR2> UnwindSafe for OptionFieldRefChain<FR1, FR2>
where FR1: UnwindSafe, FR2: UnwindSafe,

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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<S> GetField for S

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fn get_field<T>(&self, fr: FieldRef<S, T>) -> &T

Examples Read more
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fn try_get_field<'x, FR, T>(&'x self, fr: FR) -> Option<&'x T>
where FR: OptionFieldRef<'x, Input = S, Output = T>,

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impl<S> GetFieldMut for S

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fn get_field_mut<T>(&mut self, fr: FieldRef<S, T>) -> &mut T

Examples Read more
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fn try_get_field_mut<'x, FR, T>(&'x mut self, fr: FR) -> Option<&'x mut T>
where FR: OptionFieldRef<'x, Input = S, Output = T>,

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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.