pub struct StableSet<T>(_);
Expand description

A wrapper around a HashSet which prevents accidentally observing the non-deterministic iteration order.

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impl<T: Hash + Eq> StableSet<T>

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pub fn insert(&mut self, val: T) -> bool

Adds a value to the set. Returns whether the value was newly inserted.

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pub fn contains(&self, val: &T) -> bool

Returns true if the set contains a value.

Trait Implementations§

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impl<T: Clone> Clone for StableSet<T>

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fn clone(&self) -> StableSet<T>

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
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impl<T: Debug> Debug for StableSet<T>

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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<T: Default> Default for StableSet<T>

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fn default() -> StableSet<T>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<T> RefUnwindSafe for StableSet<T>where T: RefUnwindSafe,

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impl<T> Send for StableSet<T>where T: Send,

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impl<T> Sync for StableSet<T>where T: Sync,

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impl<T> Unpin for StableSet<T>where T: Unpin,

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impl<T> UnwindSafe for StableSet<T>where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere 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.

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impl<T> ToOwned for Twhere 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, U> TryFrom<U> for Twhere U: Into<T>,

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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.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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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.