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+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Date: 2001-07-13
+ *
+ * SUMMARY: Applying Function.prototype.call to the Function object itself
+ *
+ *
+ * ECMA-262 15.3.4.4 Function.prototype.call (thisArg [,arg1 [,arg2,…] ] )
+ *
+ * When applied to the Function object itself, thisArg should be ignored.
+ * As explained by Waldemar (waldemar@netscape.com):
+ *
+ * Function.call(obj, "print(this)") is equivalent to invoking
+ * Function("print(this)") with this set to obj. Now, Function("print(this)")
+ * is equivalent to new Function("print(this)") (see 15.3.1.1), and the latter
+ * ignores the this value that you passed it and constructs a function
+ * (which we'll call F) which will print the value of the this that will be
+ * passed in when F will be invoked.
+ *
+ * With the last set of () you're invoking F(), which means you're calling it
+ * with no this value. When you don't provide a this value, it defaults to the
+ * global object.
+ *
+ */
+
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var BUGNUMBER = '(none)';
+var summary = 'Applying Function.prototype.call to the Function object itself';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+var self = this; // capture a reference to the global object
+var cnOBJECT_GLOBAL = self.toString();
+var cnOBJECT_OBJECT = (new Object).toString();
+var cnHello = 'Hello';
+var cnRed = 'red';
+var objTEST = {color:cnRed};
+var f = new Function();
+var g = new Function();
+
+
+f = Function.call(self, 'return cnHello');
+g = Function.call(objTEST, 'return cnHello');
+
+status = 'Section A of test';
+actual = f();
+expect = cnHello;
+captureThis();
+
+status = 'Section B of test';
+actual = g();
+expect = cnHello;
+captureThis();
+
+
+f = Function.call(self, 'return this.toString()');
+g = Function.call(objTEST, 'return this.toString()');
+
+status = 'Section C of test';
+actual = f();
+expect = cnOBJECT_GLOBAL;
+captureThis();
+
+status = 'Section D of test';
+actual = g();
+expect = cnOBJECT_GLOBAL;
+captureThis();
+
+
+f = Function.call(self, 'return this.color');
+g = Function.call(objTEST, 'return this.color');
+
+status = 'Section E of test';
+actual = f();
+expect = undefined;
+captureThis();
+
+status = 'Section F of test';
+actual = g();
+expect = undefined;
+captureThis();
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+function captureThis()
+{
+ statusitems[UBound] = status;
+ actualvalues[UBound] = actual;
+ expectedvalues[UBound] = expect;
+ UBound++;
+}
+
+
+function test()
+{
+ enterFunc ('test');
+ printBugNumber(BUGNUMBER);
+ printStatus (summary);
+
+ for (var i = 0; i < UBound; i++)
+ {
+ reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+ }
+
+ exitFunc ('test');
+}