tolerate None return from get_line

2017-01-17 17:56:03 -05:00 · 2017-01-17 17:56:03 -05:00 · d82d4b66f2
commit d82d4b66f2
parent 2bade8133c
1 changed files with 1 additions and 1 deletions
--- a/src/libsyntax/json.rs
+++ b/src/libsyntax/json.rs
@ -296,7 +296,7 @@ impl DiagnosticSpanLine {
                         h_end: usize)
                         -> DiagnosticSpanLine {
        DiagnosticSpanLine {
-            text: fm.get_line(index).unwrap().to_owned(),
+            text: fm.get_line(index).unwrap_or("").to_owned(),
            highlight_start: h_start,
            highlight_end: h_end,
        }