src/share/classes/com/sun/tools/javac/util/Options.java

Sat, 07 Nov 2020 10:30:02 +0800

author
aoqi
date
Sat, 07 Nov 2020 10:30:02 +0800
changeset 3938
93012e2a5d1d
parent 2525
2eb010b6cb22
permissions
-rw-r--r--

Added tag mips-jdk8u275-b01 for changeset eb6ee6a5f2fe

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package com.sun.tools.javac.util;
aoqi@0 27
aoqi@0 28 import java.util.*;
aoqi@0 29 import com.sun.tools.javac.main.Option;
aoqi@0 30 import static com.sun.tools.javac.main.Option.*;
aoqi@0 31
aoqi@0 32 /** A table of all command-line options.
aoqi@0 33 * If an option has an argument, the option name is mapped to the argument.
aoqi@0 34 * If a set option has no argument, it is mapped to itself.
aoqi@0 35 *
aoqi@0 36 * <p><b>This is NOT part of any supported API.
aoqi@0 37 * If you write code that depends on this, you do so at your own risk.
aoqi@0 38 * This code and its internal interfaces are subject to change or
aoqi@0 39 * deletion without notice.</b>
aoqi@0 40 */
aoqi@0 41 public class Options {
aoqi@0 42 private static final long serialVersionUID = 0;
aoqi@0 43
aoqi@0 44 /** The context key for the options. */
aoqi@0 45 public static final Context.Key<Options> optionsKey =
aoqi@0 46 new Context.Key<Options>();
aoqi@0 47
aoqi@0 48 private LinkedHashMap<String,String> values;
aoqi@0 49
aoqi@0 50 /** Get the Options instance for this context. */
aoqi@0 51 public static Options instance(Context context) {
aoqi@0 52 Options instance = context.get(optionsKey);
aoqi@0 53 if (instance == null)
aoqi@0 54 instance = new Options(context);
aoqi@0 55 return instance;
aoqi@0 56 }
aoqi@0 57
aoqi@0 58 protected Options(Context context) {
aoqi@0 59 // DEBUGGING -- Use LinkedHashMap for reproducability
aoqi@0 60 values = new LinkedHashMap<String,String>();
aoqi@0 61 context.put(optionsKey, this);
aoqi@0 62 }
aoqi@0 63
aoqi@0 64 /**
aoqi@0 65 * Get the value for an undocumented option.
aoqi@0 66 */
aoqi@0 67 public String get(String name) {
aoqi@0 68 return values.get(name);
aoqi@0 69 }
aoqi@0 70
aoqi@0 71 /**
aoqi@0 72 * Get the value for an option.
aoqi@0 73 */
aoqi@0 74 public String get(Option option) {
aoqi@0 75 return values.get(option.text);
aoqi@0 76 }
aoqi@0 77
aoqi@0 78 /**
aoqi@0 79 * Get the boolean value for an option, patterned after Boolean.getBoolean,
aoqi@0 80 * essentially will return true, iff the value exists and is set to "true".
aoqi@0 81 */
aoqi@0 82 public boolean getBoolean(String name) {
aoqi@0 83 return getBoolean(name, false);
aoqi@0 84 }
aoqi@0 85
aoqi@0 86 /**
aoqi@0 87 * Get the boolean with a default value if the option is not set.
aoqi@0 88 */
aoqi@0 89 public boolean getBoolean(String name, boolean defaultValue) {
aoqi@0 90 String value = get(name);
aoqi@0 91 return (value == null) ? defaultValue : Boolean.parseBoolean(value);
aoqi@0 92 }
aoqi@0 93
aoqi@0 94 /**
aoqi@0 95 * Check if the value for an undocumented option has been set.
aoqi@0 96 */
aoqi@0 97 public boolean isSet(String name) {
aoqi@0 98 return (values.get(name) != null);
aoqi@0 99 }
aoqi@0 100
aoqi@0 101 /**
aoqi@0 102 * Check if the value for an option has been set.
aoqi@0 103 */
aoqi@0 104 public boolean isSet(Option option) {
aoqi@0 105 return (values.get(option.text) != null);
aoqi@0 106 }
aoqi@0 107
aoqi@0 108 /**
aoqi@0 109 * Check if the value for a choice option has been set to a specific value.
aoqi@0 110 */
aoqi@0 111 public boolean isSet(Option option, String value) {
aoqi@0 112 return (values.get(option.text + value) != null);
aoqi@0 113 }
aoqi@0 114
aoqi@0 115 /**
aoqi@0 116 * Check if the value for an undocumented option has not been set.
aoqi@0 117 */
aoqi@0 118 public boolean isUnset(String name) {
aoqi@0 119 return (values.get(name) == null);
aoqi@0 120 }
aoqi@0 121
aoqi@0 122 /**
aoqi@0 123 * Check if the value for an option has not been set.
aoqi@0 124 */
aoqi@0 125 public boolean isUnset(Option option) {
aoqi@0 126 return (values.get(option.text) == null);
aoqi@0 127 }
aoqi@0 128
aoqi@0 129 /**
aoqi@0 130 * Check if the value for a choice option has not been set to a specific value.
aoqi@0 131 */
aoqi@0 132 public boolean isUnset(Option option, String value) {
aoqi@0 133 return (values.get(option.text + value) == null);
aoqi@0 134 }
aoqi@0 135
aoqi@0 136 public void put(String name, String value) {
aoqi@0 137 values.put(name, value);
aoqi@0 138 }
aoqi@0 139
aoqi@0 140 public void put(Option option, String value) {
aoqi@0 141 values.put(option.text, value);
aoqi@0 142 }
aoqi@0 143
aoqi@0 144 public void putAll(Options options) {
aoqi@0 145 values.putAll(options.values);
aoqi@0 146 }
aoqi@0 147
aoqi@0 148 public void remove(String name) {
aoqi@0 149 values.remove(name);
aoqi@0 150 }
aoqi@0 151
aoqi@0 152 public Set<String> keySet() {
aoqi@0 153 return values.keySet();
aoqi@0 154 }
aoqi@0 155
aoqi@0 156 public int size() {
aoqi@0 157 return values.size();
aoqi@0 158 }
aoqi@0 159
aoqi@0 160 // light-weight notification mechanism
aoqi@0 161
aoqi@0 162 private List<Runnable> listeners = List.nil();
aoqi@0 163
aoqi@0 164 public void addListener(Runnable listener) {
aoqi@0 165 listeners = listeners.prepend(listener);
aoqi@0 166 }
aoqi@0 167
aoqi@0 168 public void notifyListeners() {
aoqi@0 169 for (Runnable r: listeners)
aoqi@0 170 r.run();
aoqi@0 171 }
aoqi@0 172
aoqi@0 173 /** Check for a lint suboption. */
aoqi@0 174 public boolean lint(String s) {
aoqi@0 175 // return true if either the specific option is enabled, or
aoqi@0 176 // they are all enabled without the specific one being
aoqi@0 177 // disabled
aoqi@0 178 return
aoqi@0 179 isSet(XLINT_CUSTOM, s) ||
aoqi@0 180 (isSet(XLINT) || isSet(XLINT_CUSTOM, "all")) &&
aoqi@0 181 isUnset(XLINT_CUSTOM, "-" + s);
aoqi@0 182 }
aoqi@0 183 }

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