31 lines
819 B
Rust
31 lines
819 B
Rust
use orchid_base::name::Sym;
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use super::scal_match::scalv_match;
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use super::shared::AnyMatcher;
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use super::state::MatchState;
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use super::vec_match::vec_match;
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use crate::macros::MacTree;
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#[must_use]
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pub fn any_match<'a>(
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matcher: &AnyMatcher,
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seq: &'a [MacTree],
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save_loc: &impl Fn(Sym) -> bool,
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) -> Option<MatchState<'a>> {
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match matcher {
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AnyMatcher::Scalar(scalv) => scalv_match(scalv, seq, save_loc),
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AnyMatcher::Vec { left, mid, right } => {
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if seq.len() < left.len() + right.len() {
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return None;
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};
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let left_split = left.len();
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let right_split = seq.len() - right.len();
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Some(
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scalv_match(left, &seq[..left_split], save_loc)?
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.combine(scalv_match(right, &seq[right_split..], save_loc)?)
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.combine(vec_match(mid, &seq[left_split..right_split], save_loc)?),
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)
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},
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}
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}
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