duke@1: /*
ohair@798:  * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
duke@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1:  *
duke@1:  * This code is free software; you can redistribute it and/or modify it
duke@1:  * under the terms of the GNU General Public License version 2 only, as
ohair@554:  * published by the Free Software Foundation.  Oracle designates this
duke@1:  * particular file as subject to the "Classpath" exception as provided
ohair@554:  * by Oracle in the LICENSE file that accompanied this code.
duke@1:  *
duke@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@1:  * version 2 for more details (a copy is included in the LICENSE file that
duke@1:  * accompanied this code).
duke@1:  *
duke@1:  * You should have received a copy of the GNU General Public License version
duke@1:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
duke@1:  */
duke@1: 
duke@1: package com.sun.tools.javac.util;
duke@1: 
jjg@700: import java.util.*;
duke@1: import com.sun.tools.javac.main.OptionName;
jjg@700: import static com.sun.tools.javac.main.OptionName.*;
duke@1: 
duke@1: /** A table of all command-line options.
duke@1:  *  If an option has an argument, the option name is mapped to the argument.
duke@1:  *  If a set option has no argument, it is mapped to itself.
duke@1:  *
jjg@581:  *  <p><b>This is NOT part of any supported API.
jjg@581:  *  If you write code that depends on this, you do so at your own risk.
duke@1:  *  This code and its internal interfaces are subject to change or
duke@1:  *  deletion without notice.</b>
duke@1:  */
duke@1: public class Options {
duke@1:     private static final long serialVersionUID = 0;
duke@1: 
duke@1:     /** The context key for the options. */
duke@1:     public static final Context.Key<Options> optionsKey =
duke@1:         new Context.Key<Options>();
duke@1: 
duke@1:     private LinkedHashMap<String,String> values;
duke@1: 
duke@1:     /** Get the Options instance for this context. */
duke@1:     public static Options instance(Context context) {
duke@1:         Options instance = context.get(optionsKey);
duke@1:         if (instance == null)
duke@1:             instance = new Options(context);
duke@1:         return instance;
duke@1:     }
duke@1: 
duke@1:     protected Options(Context context) {
duke@1: // DEBUGGING -- Use LinkedHashMap for reproducability
duke@1:         values = new LinkedHashMap<String,String>();
duke@1:         context.put(optionsKey, this);
duke@1:     }
duke@1: 
jjg@700:     /**
jjg@700:      * Get the value for an undocumented option.
jjg@700:      */
duke@1:     public String get(String name) {
duke@1:         return values.get(name);
duke@1:     }
duke@1: 
jjg@700:     /**
jjg@700:      * Get the value for an option.
jjg@700:      */
duke@1:     public String get(OptionName name) {
duke@1:         return values.get(name.optionName);
duke@1:     }
duke@1: 
jjg@700:     /**
jjg@700:      * Check if the value for an undocumented option has been set.
jjg@700:      */
jjg@700:     public boolean isSet(String name) {
jjg@700:         return (values.get(name) != null);
jjg@700:     }
jjg@700: 
jjg@700:     /**
jjg@700:      * Check if the value for an option has been set.
jjg@700:      */
jjg@700:     public boolean isSet(OptionName name) {
jjg@700:         return (values.get(name.optionName) != null);
jjg@700:     }
jjg@700: 
jjg@700:     /**
jjg@700:      * Check if the value for a choice option has been set to a specific value.
jjg@700:      */
jjg@700:     public boolean isSet(OptionName name, String value) {
jjg@700:         return (values.get(name.optionName + value) != null);
jjg@700:     }
jjg@700: 
jjg@700:     /**
jjg@700:      * Check if the value for an undocumented option has not been set.
jjg@700:      */
jjg@700:     public boolean isUnset(String name) {
jjg@700:         return (values.get(name) == null);
jjg@700:     }
jjg@700: 
jjg@700:     /**
jjg@700:      * Check if the value for an option has not been set.
jjg@700:      */
jjg@700:     public boolean isUnset(OptionName name) {
jjg@700:         return (values.get(name.optionName) == null);
jjg@700:     }
jjg@700: 
jjg@700:     /**
jjg@700:      * Check if the value for a choice option has not been set to a specific value.
jjg@700:      */
jjg@700:     public boolean isUnset(OptionName name, String value) {
jjg@700:         return (values.get(name.optionName + value) == null);
jjg@700:     }
jjg@700: 
duke@1:     public void put(String name, String value) {
duke@1:         values.put(name, value);
duke@1:     }
duke@1: 
duke@1:     public void put(OptionName name, String value) {
duke@1:         values.put(name.optionName, value);
duke@1:     }
duke@1: 
duke@1:     public void putAll(Options options) {
duke@1:         values.putAll(options.values);
duke@1:     }
duke@1: 
duke@1:     public void remove(String name) {
duke@1:         values.remove(name);
duke@1:     }
duke@1: 
duke@1:     public Set<String> keySet() {
duke@1:         return values.keySet();
duke@1:     }
duke@1: 
duke@1:     public int size() {
duke@1:         return values.size();
duke@1:     }
duke@1: 
duke@1:     /** Check for a lint suboption. */
duke@1:     public boolean lint(String s) {
duke@1:         // return true if either the specific option is enabled, or
duke@1:         // they are all enabled without the specific one being
duke@1:         // disabled
duke@1:         return
jjg@700:             isSet(XLINT_CUSTOM, s) ||
jjg@700:             (isSet(XLINT) || isSet(XLINT_CUSTOM, "all")) &&
jjg@700:                 isUnset(XLINT_CUSTOM, "-" + s);
duke@1:     }
duke@1: }