From 8aa65c7c85ae5e3765b0cf82a56ecc648deff34f Mon Sep 17 00:00:00 2001
From: jmoenig <jens@moenig.org>
Date: Wed, 22 Apr 2020 09:51:58 +0200
Subject: [PATCH] speed-up WARP by eliminating the yield at the end

now possible due to the new Morphic2 architecture
---
 src/threads.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/threads.js b/src/threads.js
index b9a18a8d..bf41297c 100644
--- a/src/threads.js
+++ b/src/threads.js
@@ -2074,8 +2074,10 @@ Process.prototype.doWarp = function (body) {
                 stage.fps = 0; // variable frame rate
             }
         }
-        this.pushContext('doYield');
-        this.context.isCustomBlock = isCustomBlock;
+        // this.pushContext('doYield'); // no longer needed in Morphic2
+        if (this.context) {
+            this.context.isCustomBlock = isCustomBlock;
+        }
         if (!this.isAtomic) {
             this.pushContext('doStopWarping');
         }