src.jdk.compiler.share.classes.com.sun.tools.javac.util.Options Maven / Gradle / Ivy
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.tools.javac.util;
import java.util.*;
import com.sun.tools.javac.main.Option;
import static com.sun.tools.javac.main.Option.*;
/** A table of all command-line options.
* If an option has an argument, the option name is mapped to the argument.
* If a set option has no argument, it is mapped to itself.
*
* This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own risk.
* This code and its internal interfaces are subject to change or
* deletion without notice.
*/
public class Options {
private static final long serialVersionUID = 0;
/** The context key for the options. */
public static final Context.Key optionsKey = new Context.Key<>();
private LinkedHashMap values;
/** Get the Options instance for this context. */
public static Options instance(Context context) {
Options instance = context.get(optionsKey);
if (instance == null)
instance = new Options(context);
return instance;
}
protected Options(Context context) {
// DEBUGGING -- Use LinkedHashMap for reproducibility
values = new LinkedHashMap<>();
context.put(optionsKey, this);
}
/**
* Get the value for an undocumented option.
*/
public String get(String name) {
return values.get(name);
}
/**
* Get the value for an option.
*/
public String get(Option option) {
return values.get(option.primaryName);
}
/**
* Get the boolean value for an option, patterned after Boolean.getBoolean,
* essentially will return true, iff the value exists and is set to "true".
*/
public boolean getBoolean(String name) {
return getBoolean(name, false);
}
/**
* Get the boolean with a default value if the option is not set.
*/
public boolean getBoolean(String name, boolean defaultValue) {
String value = get(name);
return (value == null) ? defaultValue : Boolean.parseBoolean(value);
}
/**
* Check if the value for an undocumented option has been set.
*/
public boolean isSet(String name) {
return (values.get(name) != null);
}
/**
* Check if the value for an option has been set.
*/
public boolean isSet(Option option) {
return (values.get(option.primaryName) != null);
}
/**
* Check if the value for a choice option has been set to a specific value.
*/
public boolean isSet(Option option, String value) {
return (values.get(option.primaryName + value) != null);
}
/** Check if the value for a lint option has been explicitly set, either with -Xlint:opt
* or if all lint options have enabled and this one not disabled with -Xlint:-opt.
*/
public boolean isLintSet(String s) {
// return true if either the specific option is enabled, or
// they are all enabled without the specific one being
// disabled
return
isSet(XLINT_CUSTOM, s) ||
(isSet(XLINT) || isSet(XLINT_CUSTOM, "all")) && isUnset(XLINT_CUSTOM, "-" + s);
}
/**
* Check if the value for an undocumented option has not been set.
*/
public boolean isUnset(String name) {
return (values.get(name) == null);
}
/**
* Check if the value for an option has not been set.
*/
public boolean isUnset(Option option) {
return (values.get(option.primaryName) == null);
}
/**
* Check if the value for a choice option has not been set to a specific value.
*/
public boolean isUnset(Option option, String value) {
return (values.get(option.primaryName + value) == null);
}
public void put(String name, String value) {
values.put(name, value);
}
public void put(Option option, String value) {
values.put(option.primaryName, value);
}
public void putAll(Options options) {
values.putAll(options.values);
}
public void remove(String name) {
values.remove(name);
}
public Set keySet() {
return values.keySet();
}
public int size() {
return values.size();
}
// light-weight notification mechanism
private List listeners = List.nil();
public void addListener(Runnable listener) {
listeners = listeners.prepend(listener);
}
public void notifyListeners() {
for (Runnable r: listeners)
r.run();
}
public void clear() {
values.clear();
listeners = List.nil();
}
}