From 39fdbaf98354c6807e772178092f72cad95d3e29 Mon Sep 17 00:00:00 2001
From: Tim Mickel <tim.mickel@gmail.com>
Date: Tue, 23 Aug 2016 18:12:19 -0400
Subject: [PATCH] Add atStackTop helper to Thread
---
src/engine/thread.js | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/engine/thread.js b/src/engine/thread.js
index d1bd73fc0..07a98b862 100644
--- a/src/engine/thread.js
+++ b/src/engine/thread.js
@@ -123,6 +123,14 @@ Thread.prototype.pushReportedValue = function (value) {
}
};
+/**
+ * Whether the current execution of a thread is at the top of the stack.
+ * @return {Boolean} True if execution is at top of the stack.
+ */
+Thread.prototype.atStackTop = function () {
+ return this.peekStack() === this.topBlock;
+};
+
/**
* Set thread status.
* @param {number} status Enum representing thread status.