From 1322f3de9f60f86a9c4421169d84e7c7145c3e3b Mon Sep 17 00:00:00 2001
From: Jinho Bang <zino@chromium.org>
Date: Tue, 16 Oct 2018 09:52:33 +0900
Subject: `deno -v` should report typescript version

Fixes #993
---
 js/main.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'js')

diff --git a/js/main.ts b/js/main.ts
index 0d33cf063..70819a576 100644
--- a/js/main.ts
+++ b/js/main.ts
@@ -8,6 +8,7 @@ import { libdeno } from "./libdeno";
 import { args } from "./deno";
 import { sendSync, handleAsyncMsgFromRust } from "./dispatch";
 import { promiseErrorExaminer, promiseRejectHandler } from "./promise_util";
+import { version } from "typescript";
 
 function sendStart(): msg.StartRes {
   const builder = new flatbuffers.Builder();
@@ -59,6 +60,14 @@ export default function denoMain() {
     os.exit(0);
   }
 
+  // handle `--version`
+  if (startResMsg.versionFlag()) {
+    console.log("deno:", startResMsg.denoVersion());
+    console.log("v8:", startResMsg.v8Version());
+    console.log("typescript:", version);
+    os.exit(0);
+  }
+
   const cwd = startResMsg.cwd();
   log("cwd", cwd);
 
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