Struct tantivy_fst::map::Stream

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pub struct Stream<'m, A = AlwaysMatch>(/* private fields */)
where
    A: Automaton;
Expand description

A lexicographically ordered stream of key-value pairs from a map.

The A type parameter corresponds to an optional automaton to filter the stream. By default, no filtering is done.

The 'm lifetime parameter refers to the lifetime of the underlying map.

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impl<'m, A: Automaton> Stream<'m, A>

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pub fn into_byte_vec(self) -> Vec<(Vec<u8>, u64)>

Convert this stream into a vector of byte strings and outputs.

Note that this creates a new allocation for every key in the stream.

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pub fn into_str_vec(self) -> Result<Vec<(String, u64)>>

Convert this stream into a vector of Unicode strings and outputs.

If any key is not valid UTF-8, then iteration on the stream is stopped and a UTF-8 decoding error is returned.

Note that this creates a new allocation for every key in the stream.

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pub fn into_byte_keys(self) -> Vec<Vec<u8>>

Convert this stream into a vector of byte strings.

Note that this creates a new allocation for every key in the stream.

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pub fn into_str_keys(self) -> Result<Vec<String>>

Convert this stream into a vector of Unicode strings.

If any key is not valid UTF-8, then iteration on the stream is stopped and a UTF-8 decoding error is returned.

Note that this creates a new allocation for every key in the stream.

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pub fn into_values(self) -> Vec<u64>

Convert this stream into a vector of outputs.

Trait Implementations§

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impl<'a, 'm, A: Automaton> Streamer<'a> for Stream<'m, A>

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type Item = (&'a [u8], u64)

The type of the item emitted by this stream.
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fn next(&'a mut self) -> Option<Self::Item>

Emits the next element in this stream, or None to indicate the stream has been exhausted. Read more

Auto Trait Implementations§

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impl<'m, A> RefUnwindSafe for Stream<'m, A>where A: RefUnwindSafe, <A as Automaton>::State: RefUnwindSafe,

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impl<'m, A> Send for Stream<'m, A>where A: Send, <A as Automaton>::State: Send,

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impl<'m, A> Sync for Stream<'m, A>where A: Sync, <A as Automaton>::State: Sync,

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impl<'m, A> Unpin for Stream<'m, A>where A: Unpin, <A as Automaton>::State: Unpin,

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impl<'m, A> UnwindSafe for Stream<'m, A>where A: UnwindSafe, <A as Automaton>::State: 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,

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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 Twhere 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 Twhere 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<'a, S> IntoStreamer<'a> for Swhere S: Streamer<'a>,

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type Item = <S as Streamer<'a>>::Item

The type of the item emitted by the stream.
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type Into = S

The type of the stream to be constructed.
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fn into_stream(self) -> S

Construct a stream from Self.
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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.
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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 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.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.