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-rw-r--r--helix-core/src/syntax.rs8
1 files changed, 7 insertions, 1 deletions
diff --git a/helix-core/src/syntax.rs b/helix-core/src/syntax.rs
index 8f62bead..f2939e3d 100644
--- a/helix-core/src/syntax.rs
+++ b/helix-core/src/syntax.rs
@@ -246,6 +246,7 @@ pub struct TextObjectQuery {
pub enum CapturedNode<'a> {
Single(Node<'a>),
+ /// Guarenteed to be not empty
Grouped(Vec<Node<'a>>),
}
@@ -318,7 +319,12 @@ impl TextObjectQuery {
let iter: Box<dyn Iterator<Item = CapturedNode>> = match quantifier {
CaptureQuantifier::OneOrMore | CaptureQuantifier::ZeroOrMore => {
- Box::new(std::iter::once(CapturedNode::Grouped(nodes.collect())))
+ let nodes: Vec<Node> = nodes.collect();
+ if nodes.is_empty() {
+ Box::new(std::iter::empty())
+ } else {
+ Box::new(std::iter::once(CapturedNode::Grouped(nodes)))
+ }
}
_ => Box::new(nodes.map(CapturedNode::Single)),
};