pub enum ControlKind {
Show 15 variants Goto, Raise, Break, Continue, Fallthrough, FallthroughUnchecked, Return, Resume, YieldReturn, YieldBreak, YieldFrom, YieldSend, Await, AwaitNever, AwaitBlockOn,
}
Expand description

The control flow keywords

Variants§

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Goto

goto ^label, equivalent to call/cc, can’t construct from frontend

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Raise

raise ^label

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Break

break ^label

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Continue

continue ^label, equivalent to goto

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Fallthrough

fallthrough ^label

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FallthroughUnchecked

fallthrough! ^label

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Return

return ^LABEL

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Resume

resume ^LABEL

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YieldReturn

yield ^LABEL

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YieldBreak

yield break ^LABEL, yield! ^LABEL

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YieldFrom

yield from iterator, yield* iterator

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YieldSend

let v = yield wait, let v = yield?

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Await

let v = await AWAITABLE

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AwaitNever

await? AWAITABLE

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AwaitBlockOn

violence { await! AWAITABLE }

Implementations§

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impl ControlKind

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pub fn as_str(&self) -> &'static str

Convert to keywords

Trait Implementations§

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impl Clone for ControlKind

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fn clone(&self) -> ControlKind

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 Debug for ControlKind

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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 Display for ControlKind

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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 Hash for ControlKind

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for ControlKind

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for ControlKind

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impl Eq for ControlKind

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impl StructuralPartialEq for ControlKind

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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> Console for T
where T: Display,

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fn fg<C>(self, color: C) -> Foreground<Self>
where C: Into<Option<Color>>, Self: Display,

Give this value the specified foreground colour.
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fn bg<C>(self, color: C) -> Background<Self>
where C: Into<Option<Color>>, Self: Display,

Give this value the specified background colour.
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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> 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> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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.