jdk8-mips64-public/nashorn: test/script/basic/JDK-8026701.js@a2065f67857c

8026701: Array.prototype.splice is slow on dense arrays
Reviewed-by: lagergren, sundar, jlaskey

     1 /*

     2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

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     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

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    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

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    24 /**

    25  * JDK-8026701: Array.prototype.splice is slow on dense arrays

    26  *

    27  * @test

    28  * @run

    29  */

    31 function testSplice(arr, e1, e2, e3) {

    32     try {

    33         print(arr);

    34         print(arr.splice(3, 0, e1, e2, e3));

    35         print(arr);

    36         print(arr.splice(2, 3));

    37         print(arr);

    38         print(arr.splice(2, 3, arr[2], arr[3], arr[4]));

    39         print(arr);

    40         print(arr.splice(20, 10));

    41         print(arr);

    42         print(arr.splice(arr.length, 0, e1, e2, e3));

    43         print(arr);

    44         print(arr.splice(0, 2, arr[0], arr[1], arr[2], arr[3]));

    45         print(arr);

    46     } catch (error) {

    47         print(error);

    48     }

    49 }

    51 function convert(array, type) {

    52     return (typeof Java === "undefined") ? array : Java.from(Java.to(array, type));

    53 }

    55 // run some splice tests on all dense array implementations

    56 testSplice([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], -1, -2, -3);

    57 testSplice(convert([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], "long[]"), -1, -2, -3);

    58 testSplice(convert([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], "double[]"), -1, -2, -3);

    59 testSplice(["1", "2", "3", "4", "5", "6", "7", "8", "9", "10"], -1, -2, -3);

    61 // test array conversion during splice

    62 testSplice([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], -1, "-2", "-3");

    63 testSplice([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], -1, -2.5, -3.5);

    64 testSplice(convert([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], "long[]"), -1, "-2", "-3");

    65 testSplice(convert([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], "long[]"), -1, -2.5, -3.5);

    66 testSplice(convert([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], "double[]"), -1, "-2", "-3");

    68 // test combination with defined elements

    69 testSplice(Object.defineProperty([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 5, {value: 13}), -1, -2, -3);

    70 testSplice(Object.defineProperty([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 5, {value: 13, writable: false}), -1, -2, -3);

    71 testSplice(Object.defineProperty([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 5, {value: 13, configurable: false}), -1, -2, -3);

    72 testSplice(Object.defineProperty([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 5, {value: 13, writable: false, configurable: false}), -1, -2, -3);

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