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comparison truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/model/CodeNames.java @ 21951:9c8c0937da41

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Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/model/CodeNames.java@23415229349b
children dc83cc1f94f2
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21950:2a5011c7e641 21951:9c8c0937da41
1 /*
2 * Copyright (c) 2012, 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 */
23 package com.oracle.truffle.dsl.processor.java.model;
24
25 import java.util.*;
26
27 import javax.lang.model.element.*;
28
29 public abstract class CodeNames {
30
31 private static Map<String, Name> names = new HashMap<>();
32
33 public static Name of(String value) {
34 Name name = names.get(value);
35 if (name == null) {
36 name = new NameImpl(value);
37 names.put(value, name);
38 }
39 return name;
40 }
41
42 private static class NameImpl implements Name {
43
44 private final String name;
45
46 public NameImpl(String name) {
47 this.name = name;
48 }
49
50 @Override
51 public int length() {
52 return name.length();
53 }
54
55 @Override
56 public char charAt(int index) {
57 return name.charAt(index);
58 }
59
60 @Override
61 public CharSequence subSequence(int start, int end) {
62 return name.subSequence(start, end);
63 }
64
65 @Override
66 public boolean contentEquals(CharSequence cs) {
67 return name.contentEquals(cs);
68 }
69
70 @Override
71 public boolean equals(Object obj) {
72 if (obj instanceof Name) {
73 return ((Name) obj).contentEquals(name);
74 }
75 return super.equals(obj);
76 }
77
78 @Override
79 public int hashCode() {
80 return name.hashCode();
81 }
82
83 @Override
84 public String toString() {
85 return name;
86 }
87
88 }
89
90 }