From 7d2d35d0bf67dcb68187d47f2608cde536382ad2 Mon Sep 17 00:00:00 2001
From: Kanchalai Tanglertsampan <yuisu@microsoft.com>
Date: Thu, 8 Jun 2017 11:59:31 -0700
Subject: [PATCH] Include dynamic import during pre-processing needed by VS

---
 src/services/preProcess.ts | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/services/preProcess.ts b/src/services/preProcess.ts
index 0f0702066e1..7efc174c423 100644
--- a/src/services/preProcess.ts
+++ b/src/services/preProcess.ts
@@ -95,9 +95,16 @@ namespace ts {
         function tryConsumeImport(): boolean {
             let token = scanner.getToken();
             if (token === SyntaxKind.ImportKeyword) {
-
                 token = nextToken();
-                if (token === SyntaxKind.StringLiteral) {
+                if (token === SyntaxKind.OpenParenToken) {
+                    token = nextToken();
+                    if (token === SyntaxKind.StringLiteral) {
+                        // import("mod");
+                        recordModuleName();
+                        return true;
+                    }
+                }
+                else if (token === SyntaxKind.StringLiteral) {
                     // import "mod";
                     recordModuleName();
                     return true;
@@ -297,7 +304,8 @@ namespace ts {
             //    import * as NS  from "mod"
             //    import d, {a, b as B} from "mod"
             //    import i = require("mod");
-            //
+            //    import("mod");
+
             //    export * from "mod"
             //    export {a as b} from "mod"
             //    export import i = require("mod")