use libsyntax2::{ TextRange, SyntaxNodeRef, SyntaxKind::WHITESPACE, algo::{find_leaf_at_offset, find_covering_node, ancestors}, }; pub(crate) fn extend_selection(root: SyntaxNodeRef, range: TextRange) -> Option { if range.is_empty() { let offset = range.start(); let mut leaves = find_leaf_at_offset(root, offset); if let Some(leaf) = leaves.clone().find(|node| node.kind() != WHITESPACE) { return Some(leaf.range()); } let ws = leaves.next()?; // let ws_suffix = file.text().slice( // TextRange::from_to(offset, ws.range().end()) // ); // if ws.text().contains("\n") && !ws_suffix.contains("\n") { // if let Some(line_end) = file.text() // .slice(TextSuffix::from(ws.range().end())) // .find("\n") // { // let range = TextRange::from_len(ws.range().end(), line_end); // return Some(find_covering_node(file.root(), range).range()); // } // } return Some(ws.range()); }; let node = find_covering_node(root, range); match ancestors(node).skip_while(|n| n.range() == range).next() { None => None, Some(parent) => Some(parent.range()), } }