From 98f8ec5d5a3bdf4e59bf87686125f14519314657 Mon Sep 17 00:00:00 2001
From: Jason Freeman <jfreeman@microsoft.com>
Date: Tue, 7 Oct 2014 15:36:55 -0700
Subject: [PATCH] Fix crash when getting member completion for an object
 literal

---
 src/services/services.ts | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/services/services.ts b/src/services/services.ts
index e4d28f4700f..b4522849e2a 100644
--- a/src/services/services.ts
+++ b/src/services/services.ts
@@ -2144,9 +2144,16 @@ module ts {
             }
 
             // TODO: this is a hack for now, we need a proper walking mechanism to verify that we have the correct node
-            var mappedNode = getTouchingToken(sourceFile, TypeScript.end(node) - 1);
-            if (isPunctuation(mappedNode.kind)) {
-                mappedNode = mappedNode.parent;
+            var precedingToken = findTokenOnLeftOfPosition(sourceFile, TypeScript.end(node));
+            var mappedNode: Node;
+            if (!precedingToken) {
+                mappedNode = sourceFile;
+            }
+            else if (isPunctuation(precedingToken.kind)) {
+                mappedNode = precedingToken.parent;
+            }
+            else {
+                mappedNode = precedingToken;
             }
 
             Debug.assert(mappedNode, "Could not map a Fidelity node to an AST node");