[−][src]Enum core::ops::ControlFlow
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
Used to make try_fold closures more like normal loops
Variants
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
Continue in the loop, using the given value for the next iteration
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
Exit the loop, yielding the given value
Implementations
impl<B, C> ControlFlow<B, C>[src]
pub fn is_break(&self) -> bool[src]
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
Returns true if this is a Break variant.
pub fn is_continue(&self) -> bool[src]
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
Returns true if this is a Continue variant.
pub fn break_value(self) -> Option<B>[src]
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
Converts the ControlFlow into an Option which is Some if the
ControlFlow was Break and None otherwise.
impl<R: Try> ControlFlow<R, R::Ok>[src]
pub fn from_try(r: R) -> Self[src]
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
Create a ControlFlow from any type implementing Try.
pub fn into_try(self) -> R[src]
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
Convert a ControlFlow into any type implementing Try;
impl<B> ControlFlow<B, ()>[src]
pub const CONTINUE: Self[src]
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
It's frequently the case that there's no value needed with Continue,
so this provides a way to avoid typing (()), if you prefer it.
Examples
#![feature(control_flow_enum)] use std::ops::ControlFlow; let mut partial_sum = 0; let last_used = (1..10).chain(20..25).try_for_each(|x| { partial_sum += x; if partial_sum > 100 { ControlFlow::Break(x) } else { ControlFlow::CONTINUE } }); assert_eq!(last_used.break_value(), Some(22));Run
impl<C> ControlFlow<(), C>[src]
pub const BREAK: Self[src]
🔬 This is a nightly-only experimental API. (control_flow_enum #75744)
new API
APIs like try_for_each don't need values with Break,
so this provides a way to avoid typing (()), if you prefer it.
Examples
#![feature(control_flow_enum)] use std::ops::ControlFlow; let mut partial_sum = 0; (1..10).chain(20..25).try_for_each(|x| { if partial_sum > 100 { ControlFlow::BREAK } else { partial_sum += x; ControlFlow::CONTINUE } }); assert_eq!(partial_sum, 108);Run
Trait Implementations
impl<B: Clone, C: Clone> Clone for ControlFlow<B, C>[src]
fn clone(&self) -> ControlFlow<B, C>[src]
fn clone_from(&mut self, source: &Self)1.0.0[src]
impl<B: Copy, C: Copy> Copy for ControlFlow<B, C>[src]
impl<B: Debug, C: Debug> Debug for ControlFlow<B, C>[src]
impl<B: PartialEq, C: PartialEq> PartialEq<ControlFlow<B, C>> for ControlFlow<B, C>[src]
fn eq(&self, other: &ControlFlow<B, C>) -> bool[src]
fn ne(&self, other: &ControlFlow<B, C>) -> bool[src]
impl<B, C> StructuralPartialEq for ControlFlow<B, C>[src]
impl<B, C> Try for ControlFlow<B, C>[src]
Auto Trait Implementations
impl<B, C> Send for ControlFlow<B, C> where
B: Send,
C: Send,
B: Send,
C: Send,
impl<B, C> Sync for ControlFlow<B, C> where
B: Sync,
C: Sync,
B: Sync,
C: Sync,
impl<B, C> Unpin for ControlFlow<B, C> where
B: Unpin,
C: Unpin,
B: Unpin,
C: Unpin,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut Self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,