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annotate truffle/com.oracle.truffle.api.interop/src/com/oracle/truffle/api/interop/impl/ReadOnlyArrayList.java @ 22500:fbe1eb7b4172

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Providing compatible implementation of List.toString
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Dec 2015 12:31:17 +0100
parents e70b20f4bb00
children c81e7280af42
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
21770
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.api.interop.impl;
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26
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27 import java.lang.reflect.Array;
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28 import java.util.Collection;
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29 import java.util.Iterator;
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30 import java.util.List;
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31 import java.util.ListIterator;
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32 import java.util.NoSuchElementException;
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33
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34 public final class ReadOnlyArrayList<T> implements List<T> {
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35 private final T[] arr;
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36 private final int first;
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37 private final int last;
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38
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39 private ReadOnlyArrayList(T[] arr, int first, int last) {
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40 this.arr = arr;
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41 this.first = first;
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42 this.last = last;
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43 if (first > last) {
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44 throw new IllegalArgumentException();
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45 }
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46 }
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47
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48 public static <T> List<T> asList(T[] arr, int first, int last) {
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49 return new ReadOnlyArrayList<>(arr, first, last);
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50 }
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51
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52 @Override
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53 public int size() {
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54 return last - first;
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55 }
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56
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57 @Override
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58 public boolean isEmpty() {
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59 return first == last;
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60 }
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61
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62 @Override
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63 public boolean contains(Object o) {
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64 for (int i = first; i < last; i++) {
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65 if (o == arr[i] || (o != null && o.equals(arr[i]))) {
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66 return true;
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67 }
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68 }
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69 return false;
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70 }
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71
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72 @Override
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73 public Iterator<T> iterator() {
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74 return new LI(first);
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75 }
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76
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77 @Override
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78 public Object[] toArray() {
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79 return toArray(new Object[size()]);
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80 }
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81
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82 @Override
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83 @SuppressWarnings("unchecked")
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84 public <A> A[] toArray(A[] b) {
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85 A[] a;
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86 if (b.length < size()) {
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87 a = (A[]) Array.newInstance(b.getClass().getComponentType(), size());
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88 } else {
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89 a = b;
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90 }
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91 for (int i = 0, at = first; at < last; i++, at++) {
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92 a[i] = (A) arr[at];
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93 }
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94 return a;
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95 }
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96
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97 @Override
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98 public boolean add(Object e) {
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99 throw new UnsupportedOperationException();
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100 }
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101
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102 @Override
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103 public boolean remove(Object o) {
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104 throw new UnsupportedOperationException();
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105 }
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106
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107 @Override
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108 public boolean containsAll(Collection<?> c) {
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109 for (Object obj : c) {
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110 if (!contains(obj)) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
111 return false;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
112 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
113 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
114 return true;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
115 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
116
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Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
117 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
118 public boolean addAll(Collection<? extends T> c) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
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parents:
diff changeset
119 throw new UnsupportedOperationException();
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
120 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
121
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
122 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
123 public boolean addAll(int index, Collection<? extends T> c) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
124 throw new UnsupportedOperationException();
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
125 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
126
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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diff changeset
127 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
128 public boolean removeAll(Collection<?> c) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
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parents:
diff changeset
129 throw new UnsupportedOperationException();
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
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parents:
diff changeset
130 }
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Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
131
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
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diff changeset
132 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
133 public boolean retainAll(Collection<?> c) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
134 throw new UnsupportedOperationException();
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
135 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
136
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
137 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
138 public void clear() {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
139 throw new UnsupportedOperationException();
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
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140 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
141
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
142 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
143 public T get(int index) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
144 int at = first + index;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
145 T ret = arr[at];
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
146 if (at >= last) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
147 throw new ArrayIndexOutOfBoundsException();
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
148 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
149 return ret;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
150 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
151
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
152 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
153 public T set(int index, Object element) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
154 throw new UnsupportedOperationException();
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
155 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
156
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
157 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
158 public void add(int index, Object element) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
159 throw new UnsupportedOperationException();
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
160 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
161
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
162 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
163 public T remove(int index) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
164 throw new UnsupportedOperationException();
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
165 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
166
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
167 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
168 public int indexOf(Object o) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
169 for (int i = first; i < last; i++) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
170 if (arr[i] == null) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
171 if (o == null) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
172 return i - first;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
173 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
174 } else {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
175 if (arr[i].equals(o)) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
176 return i - first;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
177 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
178 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
179 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
180 return -1;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
181 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
182
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
183 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
184 public int lastIndexOf(Object o) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
185 for (int i = last - 1; i >= first; i--) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
186 if (arr[i] == null) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
187 if (o == null) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
188 return i - first;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
189 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
190 } else {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
191 if (arr[i].equals(o)) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
192 return i - first;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
193 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
194 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
195 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
196 return -1;
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
197 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
198
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
199 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
200 public ListIterator<T> listIterator() {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
201 return new LI(first);
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
202 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
203
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
204 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
205 public ListIterator<T> listIterator(int index) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
206 return new LI(first + index);
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
207 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
208
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
209 @Override
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
210 public List<T> subList(int fromIndex, int toIndex) {
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
211 return new ReadOnlyArrayList<>(arr, first + fromIndex, first + toIndex);
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
212 }
c76742cc2c6f Polishing inter-operability APIs: Exposing only Message, TruffleObject and ForeignAccess-related classes.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents:
diff changeset
213
22500
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
214 @Override
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
215 public String toString() {
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
216 Iterator<T> it = iterator();
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
217 if (!it.hasNext()) {
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
218 return "[]";
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
219 }
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
220
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
221 StringBuilder sb = new StringBuilder();
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
222 sb.append('[');
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
223 for (;;) {
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
224 T e = it.next();
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
225 sb.append(e == this ? "(this Collection)" : e);
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
226 if (!it.hasNext()) {
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
227 return sb.append(']').toString();
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
228 }
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
229 sb.append(',').append(' ');
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
diff changeset
230 }
fbe1eb7b4172 Providing compatible implementation of List.toString
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22135
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231 }
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232
21770
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233 private final class LI implements ListIterator<T>, Iterator<T> {
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234 private int index;
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235
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236 public LI(int index) {
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237 this.index = index;
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238 }
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239
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240 @Override
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241 public boolean hasNext() {
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242 return index < last;
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243 }
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244
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245 @Override
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246 public T next() {
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247 if (index >= last) {
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248 throw new NoSuchElementException();
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249 }
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250 return arr[index++];
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251 }
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252
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253 @Override
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254 public boolean hasPrevious() {
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255 return index > first;
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256 }
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257
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258 @Override
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259 public T previous() {
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260 if (first == index) {
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261 throw new NoSuchElementException();
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262 }
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263 return arr[--index];
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264 }
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265
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266 @Override
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267 public int nextIndex() {
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268 return index - first;
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269 }
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270
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271 @Override
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272 public int previousIndex() {
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273 return index - 1 - first;
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274 }
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275
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276 @Override
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277 public void remove() {
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278 throw new UnsupportedOperationException();
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279 }
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280
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281 @Override
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282 public void set(Object e) {
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283 throw new UnsupportedOperationException();
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284 }
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285
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286 @Override
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287 public void add(Object e) {
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288 throw new UnsupportedOperationException();
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289 }
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290
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291 }
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292 }