cranelift_wasm::wasmparser::collections::index_map

Enum Entry

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pub enum Entry<'a, K, V>
where
    K: Ord,
{
    Occupied(OccupiedEntry<'a, K, V>),
    Vacant(VacantEntry<'a, K, V>),
}
Expand description

A view into a single entry in a IndexMap, which may either be vacant or occupied.

This enum is constructed from the entry method on IndexMap.

Variants§

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Occupied(OccupiedEntry<'a, K, V>)

An occupied entry.

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Vacant(VacantEntry<'a, K, V>)

A vacant entry.

Implementations§

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impl<'a, K, V> Entry<'a, K, V>
where K: Hash + Eq + Ord + Clone,

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pub fn key(&self) -> &K

Returns a reference to this entry’s key.

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impl<'a, K, V> Entry<'a, K, V>
where K: Hash + Eq + Ord + Clone, V: Default,

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pub fn or_default(self) -> &'a mut V

Ensures a value is in the entry by inserting the default value if empty, and returns a mutable reference to the value in the entry.

Trait Implementations§

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impl<'a, K, V> Debug for Entry<'a, K, V>
where K: Debug + Ord, V: Debug,

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a, K, V> Freeze for Entry<'a, K, V>
where K: Freeze,

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impl<'a, K, V> RefUnwindSafe for Entry<'a, K, V>
where K: RefUnwindSafe, V: RefUnwindSafe,

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impl<'a, K, V> Send for Entry<'a, K, V>
where K: Send, V: Send,

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impl<'a, K, V> Sync for Entry<'a, K, V>
where K: Sync, V: Sync,

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impl<'a, K, V> Unpin for Entry<'a, K, V>
where K: Unpin,

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impl<'a, K, V> !UnwindSafe for Entry<'a, K, V>

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> 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. 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.