From 767da71cc13422c65a6369e26c3a6cfe894a05ef Mon Sep 17 00:00:00 2001
From: Sheetal Nandi <shkamat@microsoft.com>
Date: Mon, 11 Jul 2016 11:28:14 -0700
Subject: [PATCH] Add __tokentag to Token

---
 src/compiler/parser.ts   | 6 +++---
 src/compiler/types.ts    | 4 +++-
 src/services/services.ts | 1 +
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index 9109734858..2cb1b35b79 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -1030,7 +1030,7 @@ namespace ts {
         }
 
         // note: this function creates only node
-        function createNode(kind: SyntaxKind, pos?: number): Node {
+        function createNode(kind: SyntaxKind, pos?: number): Node | Token | Identifier {
             nodeCount++;
             if (!(pos >= 0)) {
                 pos = scanner.getStartPos();
@@ -5109,7 +5109,7 @@ namespace ts {
                 }
 
                 flags |= modifierToFlag(modifierKind);
-                modifiers.push(finishNode(createNode(modifierKind, modifierStart)));
+                modifiers.push(finishNode(<Modifier>createNode(modifierKind, modifierStart)));
             }
             if (modifiers) {
                 modifiers.flags = flags;
@@ -5128,7 +5128,7 @@ namespace ts {
                 modifiers = <ModifiersArray>[];
                 modifiers.pos = modifierStart;
                 flags |= modifierToFlag(modifierKind);
-                modifiers.push(finishNode(createNode(modifierKind, modifierStart)));
+                modifiers.push(finishNode(<Modifier>createNode(modifierKind, modifierStart)));
                 modifiers.flags = flags;
                 modifiers.end = scanner.getStartPos();
             }
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index cc10d9348f..de4f6bc526 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -472,7 +472,9 @@ namespace ts {
         flags: NodeFlags;
     }
 
-    export interface Token extends Node { }
+    export interface Token extends Node {
+        __tokenTag: any;
+    }
 
     // @kind(SyntaxKind.AbstractKeyword)
     // @kind(SyntaxKind.AsyncKeyword)
diff --git a/src/services/services.ts b/src/services/services.ts
index bffb44d9fb..5fb4251e60 100644
--- a/src/services/services.ts
+++ b/src/services/services.ts
@@ -351,6 +351,7 @@ namespace ts {
         public flags: NodeFlags;
         public parent: Node;
         public jsDocComments: JSDocComment[];
+        public __tokenTag: any;
 
         constructor(public pos: number, public end: number) {
             this.flags = NodeFlags.None;