Index: tool/input_sdk/patch/internal_patch.dart |
diff --git a/tool/input_sdk/patch/internal_patch.dart b/tool/input_sdk/patch/internal_patch.dart |
index 16afd5f3aa6332ec62190bdf31b5ff3455f4f898..f5bce774f35fbb72748a630b3e7d085a717f5372 100644 |
--- a/tool/input_sdk/patch/internal_patch.dart |
+++ b/tool/input_sdk/patch/internal_patch.dart |
@@ -23,3 +23,9 @@ List makeListFixedLength(List growableList) { |
JSArray.markFixedList(growableList); |
return growableList; |
} |
+ |
+@patch |
+List makeFixedListUnmodifiable(List list) { |
+ JSArray.markUnmodifiableList(list); |
+ return list; |
+} |