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HashTrieIterKind

kermit_algos

Enum HashTrieIterKind 

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pub enum HashTrieIterKind<'a, R: HashTrieIterable> {
    Relation(&'a R),
    Singleton(SingletonHashTrieIter),
}
Expand description

Either borrows a real HashTrieIterable relation or owns a synthetic singleton.

HashTrieIterable::hash_trie_iter dispatches to the appropriate inner variant. Lifetime 'a borrows the real relation; singletons carry no reference.

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Relation(&'a R)

A real relation borrowed from the database.

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Singleton(SingletonHashTrieIter)

A synthetic Const_<id> singleton introduced by the rewrite.

Trait Implementations§

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impl<R: HashTrieIterable> HashTrieIterable for HashTrieIterKind<'_, R>

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fn hash_trie_iter(&self) -> impl HashTrieIterator

Returns a HashTrieIterator over this structure.
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impl<R: HashTrieIterable> JoinIterable for HashTrieIterKind<'_, R>

Auto Trait Implementations§

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impl<'a, R> Freeze for HashTrieIterKind<'a, R>
where &'a R: Freeze,

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impl<'a, R> RefUnwindSafe for HashTrieIterKind<'a, R>
where &'a R: RefUnwindSafe,

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impl<'a, R> Send for HashTrieIterKind<'a, R>
where &'a R: Send,

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impl<'a, R> Sync for HashTrieIterKind<'a, R>
where &'a R: Sync,

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impl<'a, R> Unpin for HashTrieIterKind<'a, R>
where &'a R: Unpin,

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impl<'a, R> UnsafeUnpin for HashTrieIterKind<'a, R>
where &'a R: UnsafeUnpin,

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impl<'a, R> UnwindSafe for HashTrieIterKind<'a, R>
where &'a R: UnwindSafe,

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

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

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.