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-rw-r--r--crates/ra_ide/src/syntax_tree.rs16
1 files changed, 10 insertions, 6 deletions
diff --git a/crates/ra_ide/src/syntax_tree.rs b/crates/ra_ide/src/syntax_tree.rs
index 55966daf3..f58e436d1 100644
--- a/crates/ra_ide/src/syntax_tree.rs
+++ b/crates/ra_ide/src/syntax_tree.rs
@@ -5,7 +5,7 @@ use ra_ide_db::RootDatabase;
5use ra_syntax::{ 5use ra_syntax::{
6 algo, AstNode, NodeOrToken, SourceFile, 6 algo, AstNode, NodeOrToken, SourceFile,
7 SyntaxKind::{RAW_STRING, STRING}, 7 SyntaxKind::{RAW_STRING, STRING},
8 SyntaxToken, TextRange, 8 SyntaxToken, TextRange, TextUnit,
9}; 9};
10 10
11pub use ra_db::FileId; 11pub use ra_db::FileId;
@@ -56,19 +56,23 @@ fn syntax_tree_for_token(node: &SyntaxToken, text_range: TextRange) -> Option<St
56 let start = text_range.start() - node_range.start(); 56 let start = text_range.start() - node_range.start();
57 57
58 // how many characters we have selected 58 // how many characters we have selected
59 let len = text_range.len().to_usize(); 59 let len = text_range.len();
60 60
61 let node_len = node_range.len().to_usize(); 61 let node_len = node_range.len();
62 62
63 let start = start.to_usize(); 63 let start = start;
64 64
65 // We want to cap our length 65 // We want to cap our length
66 let len = len.min(node_len); 66 let len = len.min(node_len);
67 67
68 // Ensure our slice is inside the actual string 68 // Ensure our slice is inside the actual string
69 let end = if start + len < text.len() { start + len } else { text.len() - start }; 69 let end = if start + len < TextUnit::of_str(&text) {
70 start + len
71 } else {
72 TextUnit::of_str(&text) - start
73 };
70 74
71 let text = &text[start..end]; 75 let text = &text[TextRange::from_to(start, end)];
72 76
73 // Remove possible extra string quotes from the start 77 // Remove possible extra string quotes from the start
74 // and the end of the string 78 // and the end of the string