src/share/classes/com/sun/tools/javac/jvm/Profile.java

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1 /*
2 * Copyright (c) 2002, 2013, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package com.sun.tools.javac.jvm;
26
27 import com.sun.tools.javac.util.Context;
28 import com.sun.tools.javac.util.Options;
29 import java.util.EnumSet;
30 import java.util.Set;
31
32 import static com.sun.tools.javac.main.Option.PROFILE;
33
34 /** The target profile.
35 *
36 * <p><b>This is NOT part of any supported API.
37 * If you write code that depends on this, you do so at your own risk.
38 * This code and its internal interfaces are subject to change or
39 * deletion without notice.</b>
40 */
41 public enum Profile {
42 COMPACT1("compact1", 1, Target.JDK1_8),
43 COMPACT2("compact2", 2, Target.JDK1_8),
44 COMPACT3("compact3", 3, Target.JDK1_8),
45
46 DEFAULT {
47 @Override
48 public boolean isValid(Target t) {
49 return true;
50 }
51 };
52
53 private static final Context.Key<Profile> profileKey =
54 new Context.Key<Profile>();
55
56 public static Profile instance(Context context) {
57 Profile instance = context.get(profileKey);
58 if (instance == null) {
59 Options options = Options.instance(context);
60 String profileString = options.get(PROFILE);
61 if (profileString != null) instance = lookup(profileString);
62 if (instance == null) instance = DEFAULT;
63 context.put(profileKey, instance);
64 }
65 return instance;
66 }
67
68 public final String name;
69 public final int value;
70 final Set<Target> targets;
71
72 Profile() {
73 name = null;
74 value = Integer.MAX_VALUE;
75 targets = null;
76 }
77
78 Profile(String name, int value, Target t, Target... targets) {
79 this.name = name;
80 this.value = value;
81 this.targets = EnumSet.of(t, targets);
82 }
83
84 public static Profile lookup(String name) {
85 // the set of values is small enough to do linear search
86 for (Profile p: values()) {
87 if (name.equals(p.name))
88 return p;
89 }
90 return null;
91 }
92
93 public static Profile lookup(int value) {
94 // the set of values is small enough to do linear search
95 for (Profile p: values()) {
96 if (value == p.value)
97 return p;
98 }
99 return null;
100 }
101
102 public boolean isValid(Target t) {
103 return targets.contains(t);
104 }
105 }

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