From 335d38f6278e96c908b24183f1c9c90afc8ae00c Mon Sep 17 00:00:00 2001
From: Matt <baileym1@uk.ibm.com>
Date: Thu, 29 Feb 2024 00:54:29 +0000
Subject: [PATCH] Check for constructor property

---
 src/jsonata.js               | 2 +-
 test/implementation-tests.js | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/jsonata.js b/src/jsonata.js
index 199b7dfc..b7dfad53 100644
--- a/src/jsonata.js
+++ b/src/jsonata.js
@@ -1293,7 +1293,7 @@ var jsonata = (function() {
                 }
                 for(var ii = 0; ii < matches.length; ii++) {
                     var match = matches[ii];
-                    if (match && match.isPrototypeOf(result)) {
+                    if (match && (match.isPrototypeOf(result) || match instanceof Object.constructor)) {
                         throw {
                             code: "D1010",
                             stack: (new Error()).stack,
diff --git a/test/implementation-tests.js b/test/implementation-tests.js
index ace6efe5..6df7e679 100644
--- a/test/implementation-tests.js
+++ b/test/implementation-tests.js
@@ -974,6 +974,15 @@ describe("Tests that are specific to a Javascript runtime", () => {
                 code: "D1010",
             });
         });
+        it("should throw an error with constructor", async function() {
+            const expr = jsonata('{} ~> | constructor | {"is_admin": true} |');
+            expect(
+                expr.evaluate()
+            ).to.eventually.be.rejected.to.deep.contain({
+                position: 7,
+                code: "D1010",
+            });
+        });
     });
 });