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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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tree10027f336435511475e392454359edea8e25895d /js/src/tests/js1_5/Function/regress-222029-001.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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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: 13 Oct 2003
+ * SUMMARY: Make our f.caller property match IE's wrt f.apply and f.call
+ * See http://bugzilla.mozilla.org/show_bug.cgi?id=222029
+ *
+ * Below, when gg calls f via |f.call|, we have this call chain:
+ *
+ * calls calls
+ * gg() ---------> Function.prototype.call() ---------> f()
+ *
+ *
+ * The question this bug addresses is, "What should we say |f.caller| is?"
+ *
+ * Before this fix, SpiderMonkey said it was |Function.prototype.call|.
+ * After this fix, SpiderMonkey emulates IE and says |gg| instead.
+ *
+ */
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var BUGNUMBER = 222029;
+var summary = "Make our f.caller property match IE's wrt f.apply and f.call";
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+
+
+function f()
+{
+ return f.caller.p ;
+}
+
+
+/*
+ * Call |f| directly
+ */
+function g()
+{
+ return f();
+}
+g.p = "hello";
+
+
+/*
+ * Call |f| via |f.call|
+ */
+function gg()
+{
+ return f.call(this);
+}
+gg.p = "hello";
+
+
+/*
+ * Call |f| via |f.apply|
+ */
+function ggg()
+{
+ return f.apply(this);
+}
+ggg.p = "hello";
+
+
+/*
+ * Shadow |p| on |Function.prototype.call|, |Function.prototype.apply|.
+ * In Sections 2 and 3 below, we no longer expect to recover this value -
+ */
+Function.prototype.call.p = "goodbye";
+Function.prototype.apply.p = "goodbye";
+
+
+
+status = inSection(1);
+actual = g();
+expect = "hello";
+addThis();
+
+status = inSection(2);
+actual = gg();
+expect = "hello";
+addThis();
+
+status = inSection(3);
+actual = ggg();
+expect = "hello";
+addThis();
+
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+function addThis()
+{
+ 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');
+}