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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/object/shell.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/object/shell.js | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/js/src/tests/non262/object/shell.js b/js/src/tests/non262/object/shell.js new file mode 100644 index 0000000000..49d875f264 --- /dev/null +++ b/js/src/tests/non262/object/shell.js @@ -0,0 +1,62 @@ +/* -*- 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: 14 Mar 2001 + * + * SUMMARY: Utility functions for testing objects - + * + * Suppose obj is an instance of a native type, e.g. Number. + * Then obj.toString() invokes Number.prototype.toString(). + * We would also like to access Object.prototype.toString(). + * + * The difference is this: suppose obj = new Number(7). + * Invoking Number.prototype.toString() on this just returns 7. + * Object.prototype.toString() on this returns '[object Number]'. + * + * The getJSClass() function returns 'Number', the [[Class]] property of obj. + * See ECMA-262 Edition 3, 13-Oct-1999, Section 8.6.2 + */ +//----------------------------------------------------------------------------- + + +var cnNoObject = 'Unexpected Error!!! Parameter to this function must be an object'; +var cnNoClass = 'Unexpected Error!!! Cannot find Class property'; +var cnObjectToString = Object.prototype.toString; +var GLOBAL = 'global'; + + +// checks that it's safe to call findType() +function getJSClass(obj) +{ + if (isObject(obj)) + return findClass(findType(obj)); + return cnNoObject; +} + + +function findType(obj) +{ + return cnObjectToString.apply(obj); +} + + +// given '[object Number]', return 'Number' +function findClass(sType) +{ + var re = /^\[.*\s+(\w+)\s*\]$/; + var a = sType.match(re); + + if (a && a[1]) + return a[1]; + return cnNoClass; +} + + +function isObject(obj) +{ + return obj instanceof Object; +} + |