Add m-esr52 at 52.6.0

1 files changed, 60 insertions, 0 deletions

diff --git a/js/src/tests/ecma_5/extensions/builtin-function-arguments-caller.js b/js/src/tests/ecma_5/extensions/builtin-function-arguments-caller.js
new file mode 100644
index 000000000..2acf5f452
--- /dev/null
+++ b/js/src/tests/ecma_5/extensions/builtin-function-arguments-caller.js
@@ -0,0 +1,60 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var gTestfile = 'builtin-function-arguments-caller.js';
+var BUGNUMBER = 929642;
+var summary =
+  "Built-in functions defined in ECMAScript pick up arguments/caller " +
+  "properties from Function.prototype";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+function expectNoProperty(obj, prop)
+{
+  var desc = Object.getOwnPropertyDescriptor(obj, prop);
+  assertEq(desc, undefined,
+           "should be no '" + prop + "' property on " + obj);
+}
+
+// Test a builtin that's native.
+expectNoProperty(Object, "arguments");
+expectNoProperty(Object, "caller");
+
+// Also test a builtin that's self-hosted.
+expectNoProperty(Array.prototype.indexOf, "arguments");
+expectNoProperty(Array.prototype.indexOf, "caller");
+
+// Test the Function construct for good measure, because it's so intricately
+// invovled in bootstrapping.
+expectNoProperty(Function, "arguments");
+expectNoProperty(Function, "caller");
+
+var argsDesc = Object.getOwnPropertyDescriptor(Function.prototype, "arguments");
+var callerDesc = Object.getOwnPropertyDescriptor(Function.prototype, "caller");
+
+var argsGet = argsDesc.get, argsSet = argsDesc.set;
+
+expectNoProperty(argsGet, "arguments");
+expectNoProperty(argsGet, "caller");
+expectNoProperty(argsSet, "arguments");
+expectNoProperty(argsSet, "caller");
+
+var callerGet = callerDesc.get, callerSet = callerDesc.set;
+
+expectNoProperty(callerGet, "arguments");
+expectNoProperty(callerGet, "caller");
+expectNoProperty(callerSet, "arguments");
+expectNoProperty(callerSet, "caller");
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("Tests complete");