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-rw-r--r--helix-core/src/syntax.rs52
1 files changed, 27 insertions, 25 deletions
diff --git a/helix-core/src/syntax.rs b/helix-core/src/syntax.rs
index b20d9092..1cfa04e7 100644
--- a/helix-core/src/syntax.rs
+++ b/helix-core/src/syntax.rs
@@ -234,6 +234,7 @@ pub struct TextObjectQuery {
pub query: Query,
}
+#[derive(Debug)]
pub enum CapturedNode<'a> {
Single(Node<'a>),
/// Guaranteed to be not empty
@@ -268,12 +269,12 @@ impl TextObjectQuery {
/// and support for this is partial and could use improvement.
///
/// ```query
- /// ;; supported:
/// (comment)+ @capture
///
- /// ;; unsupported:
+ /// ; OR
/// (
- /// (comment)+
+ /// (comment)*
+ /// .
/// (function)
/// ) @capture
/// ```
@@ -299,28 +300,29 @@ impl TextObjectQuery {
let capture_idx = capture_names
.iter()
.find_map(|cap| self.query.capture_index_for_name(cap))?;
- let captures = cursor.matches(&self.query, node, RopeProvider(slice));
-
- let nodes = captures.flat_map(move |mat| {
- let captures = mat.captures.iter().filter(move |c| c.index == capture_idx);
- let nodes = captures.map(|c| c.node);
- let pattern_idx = mat.pattern_index;
- let quantifier = self.query.capture_quantifiers(pattern_idx)[capture_idx as usize];
-
- let iter: Box<dyn Iterator<Item = CapturedNode>> = match quantifier {
- CaptureQuantifier::OneOrMore | CaptureQuantifier::ZeroOrMore => {
- let nodes: Vec<Node> = nodes.collect();
- if nodes.is_empty() {
- Box::new(std::iter::empty())
- } else {
- Box::new(std::iter::once(CapturedNode::Grouped(nodes)))
- }
+
+ let nodes = cursor
+ .captures(&self.query, node, RopeProvider(slice))
+ .filter_map(move |(mat, _)| {
+ let nodes: Vec<_> = mat
+ .captures
+ .iter()
+ .filter_map(|x| {
+ if x.index == capture_idx {
+ Some(x.node)
+ } else {
+ None
+ }
+ })
+ .collect();
+
+ if nodes.len() > 1 {
+ Some(CapturedNode::Grouped(nodes))
+ } else {
+ nodes.into_iter().map(CapturedNode::Single).next()
}
- _ => Box::new(nodes.map(CapturedNode::Single)),
- };
+ });
- iter
- });
Some(nodes)
}
}
@@ -1122,8 +1124,8 @@ pub(crate) fn generate_edits(
use std::sync::atomic::{AtomicUsize, Ordering};
use std::{iter, mem, ops, str, usize};
use tree_sitter::{
- CaptureQuantifier, Language as Grammar, Node, Parser, Point, Query, QueryCaptures, QueryCursor,
- QueryError, QueryMatch, Range, TextProvider, Tree,
+ Language as Grammar, Node, Parser, Point, Query, QueryCaptures, QueryCursor, QueryError,
+ QueryMatch, Range, TextProvider, Tree,
};
const CANCELLATION_CHECK_INTERVAL: usize = 100;