fix crash in getCompletionEntryDetails

vladima · vladima · commit 08ab517d5276 · 2014-12-01T17:46:56.000-08:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -4379,7 +4379,7 @@ module ts {
         function getNarrowedTypeOfSymbol(symbol: Symbol, node: Node) {
             var type = getTypeOfSymbol(symbol);
             // Only narrow when symbol is variable of a structured type
-            if (node && (symbol.flags & SymbolFlags.Variable && type.flags & TypeFlags.Structured)) {
+            if (node && node.parent && (symbol.flags & SymbolFlags.Variable && type.flags & TypeFlags.Structured)) {
                 loop: while (true) {
                     var child = node;
                     node = node.parent;
