Struct proptest::option::OptionValueTree

source · [−]

pub struct OptionValueTree<T>(_) 
where
    T: Strategy;

Expand description

ValueTree type corresponding to OptionStrategy.

Trait Implementations

impl<T: Strategy> Clone for OptionValueTree<T> where
T::Tree: Clone,

fn clone(&self) -> Self

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl<T: Strategy> Debug for OptionValueTree<T> where
T::Tree: Debug,

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

Formats the value using the given formatter. Read more

impl<T> ValueTree for OptionValueTree<T> where
T: Strategy,

type Value = Option<<T as Strategy>::Value>

The type of the value produced by this ValueTree.

fn current(&self) -> Self::Value

Returns the current value.

fn simplify(&mut self) -> bool

Attempts to simplify the current value. Notionally, this sets the “high” value to the current value, and the current value to a “halfway point” between high and low, rounding towards low. Read more

fn complicate(&mut self) -> bool

Attempts to partially undo the last simplification. Notionally, this sets the “low” value to one plus the current value, and the current value to a “halfway point” between high and the new low, rounding towards low. Read more

Auto Trait Implementations

impl<T> !RefUnwindSafe for OptionValueTree<T>

impl<T> Send for OptionValueTree<T> where
    T: Send + Sync,
    <T as Strategy>::Tree: Send,
    <T as Strategy>::Value: Send + Sync,

impl<T> Sync for OptionValueTree<T> where
    T: Send + Sync,
    <T as Strategy>::Tree: Sync,
    <T as Strategy>::Value: Send + Sync,

impl<T> Unpin for OptionValueTree<T> where
<T as Strategy>::Tree: Unpin,
<T as Strategy>::Value: Unpin,

impl<T> !UnwindSafe for OptionValueTree<T>

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

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

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn vzip(self) -> V