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Option

concurrent::chainlock_transaction

Struct Option 

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pub struct Option<O>(pub O);
Expand description

Wrapper for a transaction state option tag.

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§0: O

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impl<O> Option<O>

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pub const fn new(option: O) -> Self

Creates a new Option wrapping option.

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impl<O: Clone> Clone for Option<O>

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fn clone(&self) -> Self

Returns a duplicate 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<O: Copy> Copy for Option<O>

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impl<O: Debug> Debug for Option<O>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<O: Default> Default for Option<O>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<O: Eq> Eq for Option<O>

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impl<O: PartialEq> PartialEq for Option<O>

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
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fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl<T, O: StateOption<T>> StateOption<T> for Option<O>

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type Saver = <O as StateOption<T>>::Saver

The RAII StateSaver type instantiated for this option.
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fn save_state(&self) -> Self::Saver

Saves the environment state for the duration of the transaction and returns the RAII StateSaver.
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impl<O: PartialEq> StructuralPartialEq for Option<O>

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impl<O> Freeze for Option<O>
where O: Freeze,

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impl<O> RefUnwindSafe for Option<O>
where O: RefUnwindSafe,

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impl<O> Send for Option<O>
where O: Send,

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impl<O> Sync for Option<O>
where O: Sync,

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impl<O> Unpin for Option<O>
where O: Unpin,

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impl<O> UnsafeUnpin for Option<O>
where O: UnsafeUnpin,

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impl<O> UnwindSafe for Option<O>
where O: UnwindSafe,

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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<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> ToMutPtr for T
where T: ?Sized,

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type Target = T

The target type of the pointer.
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fn to_mut_ptr(&self) -> *mut T

Casts the reference to a mutable raw pointer.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

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.