32 lines
742 B
Rust
32 lines
742 B
Rust
use crate::criterion::Criterion;
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use crate::RawDocument;
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use slice_group_by::GroupBy;
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use std::cmp::Ordering;
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#[inline]
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fn number_of_query_words(query_index: &[u32]) -> usize {
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query_index.linear_group().count()
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}
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#[derive(Debug, Clone, Copy)]
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pub struct NumberOfWords;
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impl Criterion for NumberOfWords {
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fn evaluate(&self, lhs: &RawDocument, rhs: &RawDocument) -> Ordering {
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let lhs = {
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let query_index = lhs.query_index();
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number_of_query_words(query_index)
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};
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let rhs = {
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let query_index = rhs.query_index();
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number_of_query_words(query_index)
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};
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lhs.cmp(&rhs).reverse()
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}
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fn name(&self) -> &str {
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"NumberOfWords"
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}
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}
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