add stack debugging to .call

qooxdoo · Oct 30, 2019 · a438809 · a438809
1 parent 8b80e2c
commit a438809
Showing 1 changed file with 12 additions and 1 deletion.
diff --git a/source/class/qx/util/Promisify.js b/source/class/qx/util/Promisify.js
@@ -203,10 +203,21 @@ qx.Class.define("qx.util.Promisify", {
       });
     },
 
-    call: function(fn) {
+    call: function(fn, debugStack) {
+      if (qx.core.Environment.get("qx.debug") && debugStack) {
+        let ex = null;
+        try {
+          throw new Error("getStack");
+        }catch(tmp) {
+          ex = tmp;
+        }
+      }
       return new Promise((resolve, reject) => {
         fn((err, ...args) => {
           if (err) {
+            if (qx.core.Environment.get("qx.debug") && debugStack) {
+              console.log("Error: " + err + "\nCalled From: " + ex.stack);
+            }
             reject(err);
           } else {
             resolve(...args);