1/*
2 * Copyright (c) 2013, 2014, 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.
8 *
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
16 * 2 along with this work; if not, write to the Free Software Foundation,
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
21 * questions.
22 */
23package org.graalvm.compiler.replacements;
24
25import java.util.Arrays;
26
27import org.graalvm.compiler.api.replacements.ClassSubstitution;
28import org.graalvm.compiler.api.replacements.MethodSubstitution;
29import org.graalvm.compiler.replacements.nodes.ArrayEqualsNode;
30
31// JaCoCo Exclude
32
33/**
34 * Substitutions for {@link java.util.Arrays} methods.
35 */
36@ClassSubstitution(Arrays.class)
37public class ArraysSubstitutions {
38
39    @MethodSubstitution
40    public static boolean equals(boolean[] a, boolean[] a2) {
41        if (a == a2) {
42            return true;
43        }
44        if (a == null || a2 == null || a.length != a2.length) {
45            return false;
46        }
47        return ArrayEqualsNode.equals(a, a2, a.length);
48    }
49
50    @MethodSubstitution
51    public static boolean equals(byte[] a, byte[] a2) {
52        if (a == a2) {
53            return true;
54        }
55        if (a == null || a2 == null || a.length != a2.length) {
56            return false;
57        }
58        return ArrayEqualsNode.equals(a, a2, a.length);
59    }
60
61    @MethodSubstitution
62    public static boolean equals(char[] a, char[] a2) {
63        if (a == a2) {
64            return true;
65        }
66        if (a == null || a2 == null || a.length != a2.length) {
67            return false;
68        }
69        return ArrayEqualsNode.equals(a, a2, a.length);
70    }
71
72    @MethodSubstitution
73    public static boolean equals(short[] a, short[] a2) {
74        if (a == a2) {
75            return true;
76        }
77        if (a == null || a2 == null || a.length != a2.length) {
78            return false;
79        }
80        return ArrayEqualsNode.equals(a, a2, a.length);
81    }
82
83    @MethodSubstitution
84    public static boolean equals(int[] a, int[] a2) {
85        if (a == a2) {
86            return true;
87        }
88        if (a == null || a2 == null || a.length != a2.length) {
89            return false;
90        }
91        return ArrayEqualsNode.equals(a, a2, a.length);
92    }
93
94    @MethodSubstitution
95    public static boolean equals(long[] a, long[] a2) {
96        if (a == a2) {
97            return true;
98        }
99        if (a == null || a2 == null || a.length != a2.length) {
100            return false;
101        }
102        return ArrayEqualsNode.equals(a, a2, a.length);
103    }
104
105    @MethodSubstitution
106    public static boolean equals(float[] a, float[] a2) {
107        if (a == a2) {
108            return true;
109        }
110        if (a == null || a2 == null || a.length != a2.length) {
111            return false;
112        }
113        return ArrayEqualsNode.equals(a, a2, a.length);
114    }
115
116    @MethodSubstitution
117    public static boolean equals(double[] a, double[] a2) {
118        if (a == a2) {
119            return true;
120        }
121        if (a == null || a2 == null || a.length != a2.length) {
122            return false;
123        }
124        return ArrayEqualsNode.equals(a, a2, a.length);
125    }
126}
127