js/src/tests/js1_8_5/extensions/findReferences-01.js

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

     1 // Any copyright is dedicated to the Public Domain.
     2 // http://creativecommons.org/licenses/publicdomain/
     3 // Contributor: Jim Blandy
     5 if (typeof findReferences == "function") {
     6     function C() {}
     7     var o = new C;
     8     o.x = {};               // via ordinary property
     9     o[42] = {};             // via numeric property
    10     o[123456789] = {};      // via ridiculous numeric property
    11     o.myself = o;           // self-references should be reported
    12     o.alsoMyself = o;       // multiple self-references should all be reported
    14     assertEq(referencesVia(o, 'type; type_proto', C.prototype), true);
    15     assertEq(referencesVia(o, 'shape; base; parent', this), true);
    16     assertEq(referencesVia(o, 'x', o.x), true);
    17     assertEq(referencesVia(o, 'objectElements[42]', o[42]), true);
    18     assertEq(referencesVia(o, '123456789', o[123456789]), true);
    19     assertEq(referencesVia(o, 'myself', o), true);
    20     assertEq(referencesVia(o, 'alsoMyself', o), true);
    22     function g() { return 42; }
    23     function s(v) { }
    24     var p = Object.defineProperty({}, 'a', { get:g, set:s });
    25     assertEq(referencesVia(p, 'shape; base; getter', g), true);
    26     assertEq(referencesVia(p, 'shape; base; setter', s), true);
    28     // If there are multiple objects with the same shape referring to a getter
    29     // or setter, findReferences should get all of them, even though the shape
    30     // gets 'marked' the first time we visit it.
    31     var q = Object.defineProperty({}, 'a', { get:g, set:s });
    32     assertEq(referencesVia(p, 'shape; base; getter', g), true);
    33     assertEq(referencesVia(q, 'shape; base; getter', g), true);
    35     // If we extend each object's shape chain, both should still be able to
    36     // reach the getter, even though the two shapes are each traversed twice.
    37     p.b = 9;
    38     q.b = 9;
    39     assertEq(referencesVia(p, 'shape; parent; base; getter', g), true);
    40     assertEq(referencesVia(q, 'shape; parent; base; getter', g), true);
    42     // These are really just ordinary own property references.
    43     assertEq(referencesVia(C, 'prototype', Object.getPrototypeOf(o)), true);
    44     assertEq(referencesVia(Object.getPrototypeOf(o), 'constructor', C), true);
    46     // Dense arrays should work, too.
    47     a = [];
    48     a[1] = o;
    49     assertEq(referencesVia(a, 'objectElements[1]', o), true);
    51     reportCompare(true, true);
    52 } else {
    53     reportCompare(true, true, "test skipped: findReferences is not a function");
    54 }

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