From 723ee8a35e6bc7ea7791ce03cfb19f3300043a1b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E6=96=87=E7=92=90?= <kingwenlu@gmail.com>
Date: Thu, 2 Aug 2018 18:33:15 +0800
Subject: [PATCH] visit exclamation token

---
 src/compiler/visitor.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/visitor.ts b/src/compiler/visitor.ts
index 2cfb469f152..9a7c1c41cfd 100644
--- a/src/compiler/visitor.ts
+++ b/src/compiler/visitor.ts
@@ -268,7 +268,7 @@ namespace ts {
                     nodesVisitor((<PropertyDeclaration>node).decorators, visitor, isDecorator),
                     nodesVisitor((<PropertyDeclaration>node).modifiers, visitor, isModifier),
                     visitNode((<PropertyDeclaration>node).name, visitor, isPropertyName),
-                    visitNode((<PropertyDeclaration>node).questionToken, tokenVisitor, isToken),
+                    (visitNode((<PropertyDeclaration>node).questionToken, tokenVisitor, isToken), visitNode((<PropertyDeclaration>node).exclamationToken, tokenVisitor, isToken)),
                     visitNode((<PropertyDeclaration>node).type, visitor, isTypeNode),
                     visitNode((<PropertyDeclaration>node).initializer, visitor, isExpression));