# [−][src]Enum core::ops::GeneratorState

    #[lang = "generator_state"]
    pub enum GeneratorState<Y, R> {
        Yielded(Y),
        Complete(R),
    }

🔬 This is a nightly-only experimental API. (`generator_trait` #43122)

The result of a generator resumption.

This enum is returned from the `Generator::resume` method and indicates the possible return values of a generator. Currently this corresponds to either a suspension point (`Yielded`) or a termination point (`Complete`).

## Variants

`Yielded(Y)`
🔬 This is a nightly-only experimental API. (`generator_trait` #43122)

The generator suspended with a value.

This state indicates that a generator has been suspended, and typically corresponds to a `yield` statement. The value provided in this variant corresponds to the expression passed to `yield` and allows generators to provide a value each time they yield.

`Complete(R)`
🔬 This is a nightly-only experimental API. (`generator_trait` #43122)

The generator completed with a return value.

This state indicates that a generator has finished execution with the provided value. Once a generator has returned `Complete` it is considered a programmer error to call `resume` again.

## Trait Implementations

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`impl<Y: Copy, R: Copy> Copy for GeneratorState<Y, R>`

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`impl<Y: PartialEq, R: PartialEq> PartialEq<GeneratorState<Y, R>> for GeneratorState<Y, R>`

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`fn eq(&self, other: &GeneratorState<Y, R>) -> bool`

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This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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`fn ne(&self, other: &GeneratorState<Y, R>) -> bool`

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This method tests for `!=`.

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`impl<Y: Eq, R: Eq> Eq for GeneratorState<Y, R>`

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`impl<Y: Ord, R: Ord> Ord for GeneratorState<Y, R>`

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`fn cmp(&self, other: &GeneratorState<Y, R>) -> Ordering`

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This method returns an `Ordering` between `self` and `other`. Read more

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`fn max(self, other: Self) -> Self where Self: Sized,`

1.21.0
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Compares and returns the maximum of two values. Read more

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`fn min(self, other: Self) -> Self where Self: Sized,`

1.21.0
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Compares and returns the minimum of two values. Read more

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`impl<Y: PartialOrd, R: PartialOrd> PartialOrd<GeneratorState<Y, R>> for GeneratorState<Y, R>`

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`fn partial_cmp(&self, other: &GeneratorState<Y, R>) -> Option<Ordering>`

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This method returns an ordering between `self` and `other` values if one exists. Read more

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`fn lt(&self, other: &GeneratorState<Y, R>) -> bool`

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This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

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`fn le(&self, other: &GeneratorState<Y, R>) -> bool`

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This method tests less than or equal to (for `self` and `other`) and is used by the `<=` operator. Read more

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`fn gt(&self, other: &GeneratorState<Y, R>) -> bool`

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This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

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`fn ge(&self, other: &GeneratorState<Y, R>) -> bool`

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This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

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`impl<Y: Clone, R: Clone> Clone for GeneratorState<Y, R>`

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`fn clone(&self) -> GeneratorState<Y, R>`

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Returns a copy of the value. Read more

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`fn clone_from(&mut self, source: &Self)`

1.0.0
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Performs copy-assignment from `source`. Read more

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`impl<Y: Hash, R: Hash> Hash for GeneratorState<Y, R>`

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`fn hash<__HYR: Hasher>(&self, state: &mut __HYR)`

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Feeds this value into the given [`Hasher`]. Read more

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`fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where Self: Sized,`

1.3.0
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Feeds a slice of this type into the given [`Hasher`]. Read more

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`impl<Y: Debug, R: Debug> Debug for GeneratorState<Y, R>`

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`fn fmt(&self, f: &mut Formatter) -> Result`

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Formats the value using the given formatter. Read more

## Auto Trait Implementations

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`impl<Y, R> Send for GeneratorState<Y, R> where R: Send, Y: Send,`

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`impl<Y, R> Sync for GeneratorState<Y, R> where R: Sync, Y: Sync,`

## Blanket Implementations

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`impl<T, U> Into for T where U: From<T>,`

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`fn into(Self) -> U`

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Performs the conversion.

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`impl<T> From for T`

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`fn from(T) -> T`

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Performs the conversion.

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`impl<T, U> TryInto for T where U: TryFrom<T>,`

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#### `type Error = <U as TryFrom<T>>::Error`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

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>`

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🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

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`impl<T, U> TryFrom for T where T: From<U>,`

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#### `type Error = !`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

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`fn try_from(U) -> Result<T, <T as TryFrom<U>>::Error>`

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🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

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`impl<T> Borrow for T where T: ?Sized,`

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`fn borrow(&Self) -> &T`

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Immutably borrows from an owned value. Read more

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`impl<T> BorrowMut for T where T: ?Sized,`

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`fn borrow_mut(&mut Self) -> &mut T`

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Mutably borrows from an owned value. Read more

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`impl<T> Any for T where T: 'static + ?Sized,`

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`fn get_type_id(&Self) -> TypeId`

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🔬 This is a nightly-only experimental API. (`get_type_id` #27745)

this method will likely be replaced by an associated static

Gets the `TypeId` of `self`. Read more

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