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comparison graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/ast/CodeNames.java @ 7291:a748e4d44694
Truffle API to specify type-specalized Node classes; annotation processor for automatic code generation of the type-specialized Node classes during the build process
author | Christian Humer <christian.humer@gmail.com> |
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date | Fri, 21 Dec 2012 10:44:31 -0800 |
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7290:a81db08fe930 | 7291:a748e4d44694 |
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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.codegen.processor.ast; | |
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 } |