Avoid error calling buildHighlightIterator on a destroyed language mode

atom · Aug 22, 2018 · 02aa599 · 02aa599
1 parent 9073103
commit 02aa599
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/tree-sitter-language-mode.js b/src/tree-sitter-language-mode.js
@@ -119,6 +119,7 @@ class TreeSitterLanguageMode {
   */
 
   buildHighlightIterator () {
+    if (!this.rootLanguageLayer) return new NullHighlightIterator()
     const layerIterators = [
       this.rootLanguageLayer.buildHighlightIterator(),
       ...this.injectionsMarkerLayer.getMarkers().map(m => m.languageLayer.buildHighlightIterator())