127 lines
4.4 KiB
JavaScript
127 lines
4.4 KiB
JavaScript
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* JDK-8144020: Remove long as an internal numeric type
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*
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* @test
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* @run
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*/
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var LongProvider = Java.type("jdk.nashorn.test.models.LongProvider");
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var Long = Java.type("java.lang.Long");
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var LongClass = Long.class;
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var Integer = Java.type("java.lang.Integer");
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var Double = Java.type("java.lang.Double");
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var INT = "3";
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var DOUBLE = "5.5";
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var MAX_LONG = "9223372036854775807";
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var MIN_LONG = "-9223372036854775808";
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var BIG_LONG = "281474976710655"; // can be represented as double
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var NEG_LONG = "-281474976710656"; // can be represented as double
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var SMALL_LONG = "13";
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// Make sure we can pass longs from and to Java without losing precision
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LongProvider.checkLong(LongProvider.getLong(MAX_LONG), MAX_LONG);
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LongProvider.checkLong(LongProvider.getLong(MIN_LONG), MIN_LONG);
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LongProvider.checkLong(LongProvider.getLong(BIG_LONG), BIG_LONG);
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LongProvider.checkLong(LongProvider.getLong(NEG_LONG), NEG_LONG);
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LongProvider.checkLong(LongProvider.getLong(SMALL_LONG), SMALL_LONG);
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// a polymorphic function that can return various number types
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function getNumber(str) {
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switch (str) {
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case INT: return +INT;
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case DOUBLE: return +DOUBLE;
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default: return Long.parseLong(str);
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}
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}
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function compareValue(n, str) {
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switch (str) {
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case INT: return Integer.compare(n, Integer.parseInt(str) == 0);
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case DOUBLE: return Double.compare(n, Double.parseDouble(str) == 0);
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default: return Long.compare(n, Long.parseLong(str) == 0);
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}
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}
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// Call a a function with a sequence of values. The purpose of this is that we can handle
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// longs without losing precision in the presence of optimistic deoptimization, cached callsites, etc.
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function testSequence(fn, values) {
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for (var i in values) {
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fn(values[i]);
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}
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}
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// We need to use "fresh" (unlinked and un-deoptimized) functions for each of the test runs.
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testSequence(function(str) {
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var n = getNumber(str);
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Assert.assertTrue(compareValue(n, str));
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}, [INT, BIG_LONG, MIN_LONG]);
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testSequence(function(str) {
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var n = getNumber(str);
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Assert.assertTrue(compareValue(n, str));
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}, [INT, MAX_LONG]);
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testSequence(function(str) {
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var n = getNumber(str);
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Assert.assertTrue(compareValue(n, str));
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}, [INT, DOUBLE, NEG_LONG]);
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testSequence(function(str) {
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var n = getNumber(str);
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Assert.assertTrue(compareValue(n, str));
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}, [DOUBLE, MAX_LONG]);
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testSequence(function(str) {
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var n = getNumber(str);
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Assert.assertTrue(compareValue(n, str));
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}, [DOUBLE, SMALL_LONG, MAX_LONG]);
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testSequence(function(str) {
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var n = getNumber(str);
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Assert.assertTrue(compareValue(n, str));
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}, [INT, DOUBLE, NEG_LONG, MAX_LONG]);
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testSequence(function(str) {
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var n = getNumber(str);
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Assert.assertTrue(compareValue(n, str));
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}, [DOUBLE, MAX_LONG, DOUBLE, INT]);
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// Make sure long arrays make it through Java.from and Java.to without losing precision
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var longArrayType = Java.type("long[]");
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for (var i = 0; i < 3; i++) {
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LongProvider.checkLongArray(Java.to(Java.from(LongProvider.getLongArray(i)), longArrayType), i);
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}
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l = Long.parseLong(BIG_LONG);
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Assert.assertTrue(l >>> 8 === 0xffffff);
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Assert.assertTrue(l << 8 === -0x100);
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Assert.assertTrue(l + 1 === 0x1000000000000);
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Assert.assertTrue(l - 1 === 0xfffffffffffe);
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Assert.assertEquals(LongProvider.getLong(MAX_LONG).getClass(), LongClass);
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Assert.assertEquals(LongProvider.getLong(MIN_LONG).getClass(), LongClass);
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