Add m-esr52 at 52.6.0

1 files changed, 16 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/proxy/testDirectProxyGetInherited1.js b/js/src/jit-test/tests/proxy/testDirectProxyGetInherited1.js
new file mode 100644
index 000000000..fc2dc0388
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxyGetInherited1.js
@@ -0,0 +1,16 @@
+// Getting a property that exists on an ordinary object
+// does not touch a proxy on its proto chain.
+
+load(libdir + "asserts.js");
+
+var angryHandler = new Proxy({}, {
+    get(t, id) { throw new Error("angryHandler should not be queried (" + id + ")"); }
+});
+var angryProto = new Proxy({}, angryHandler);
+var obj = Object.create(angryProto, {
+    x: {value: 3},
+    y: {get: () => 4}
+});
+assertThrowsInstanceOf(() => obj.z, Error);  // check that angryProto works
+assertEq(obj.x, 3);
+assertEq(obj.y, 4);