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/*
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*
* Copyright (c) 1997-2011 Oracle and/or its affiliates. All rights reserved.
*
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* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
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* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
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*/
package com.sun.codemodel;
import java.io.PrintWriter;
import java.io.StringWriter;
/**
* Modifier groups.
*/
public class JMods implements JGenerable {
//
// mask
//
private static int VAR = JMod.FINAL;
private static int FIELD = (JMod.PUBLIC | JMod.PRIVATE | JMod.PROTECTED
| JMod.STATIC | JMod.FINAL
| JMod.TRANSIENT | JMod.VOLATILE);
private static int METHOD = (JMod.PUBLIC | JMod.PRIVATE | JMod.PROTECTED | JMod.FINAL
| JMod.ABSTRACT | JMod.STATIC | JMod.NATIVE | JMod.SYNCHRONIZED);
private static int CLASS = (JMod.PUBLIC | JMod.PRIVATE | JMod.PROTECTED
| JMod.STATIC | JMod.FINAL | JMod.ABSTRACT);
private static int INTERFACE = JMod.PUBLIC;
/** bit-packed representation of modifiers. */
private int mods;
private JMods(int mods) {
this.mods = mods;
}
/**
* Gets the bit-packed representaion of modifiers.
*/
public int getValue() {
return mods;
}
private static void check(int mods, int legal, String what) {
if ((mods & ~legal) != 0) {
throw new IllegalArgumentException("Illegal modifiers for "
+ what + ": "
+ new JMods(mods).toString());
}
/* ## check for illegal combinations too */
}
static JMods forVar(int mods) {
check(mods, VAR, "variable");
return new JMods(mods);
}
static JMods forField(int mods) {
check(mods, FIELD, "field");
return new JMods(mods);
}
static JMods forMethod(int mods) {
check(mods, METHOD, "method");
return new JMods(mods);
}
static JMods forClass(int mods) {
check(mods, CLASS, "class");
return new JMods(mods);
}
static JMods forInterface(int mods) {
check(mods, INTERFACE, "class");
return new JMods(mods);
}
public boolean isAbstract() {
return (mods & JMod.ABSTRACT) != 0;
}
public boolean isNative() {
return (mods & JMod.NATIVE) != 0;
}
public boolean isSynchronized() {
return (mods & JMod.SYNCHRONIZED) != 0;
}
public void setSynchronized(boolean newValue) {
setFlag(JMod.SYNCHRONIZED, newValue);
}
public void setPrivate() {
setFlag(JMod.PUBLIC, false);
setFlag(JMod.PROTECTED, false);
setFlag(JMod.PRIVATE, true);
}
public void setProtected() {
setFlag(JMod.PUBLIC, false);
setFlag(JMod.PROTECTED, true);
setFlag(JMod.PRIVATE, false);
}
public void setPublic() {
setFlag(JMod.PUBLIC, true);
setFlag(JMod.PROTECTED, false);
setFlag(JMod.PRIVATE, false);
}
public void setFinal(boolean newValue) {
setFlag(JMod.FINAL, newValue);
}
private void setFlag(int bit, boolean newValue) {
mods = (mods & ~bit) | (newValue ? bit : 0);
}
public void generate(JFormatter f) {
if ((mods & JMod.PUBLIC) != 0) f.p("public");
if ((mods & JMod.PROTECTED) != 0) f.p("protected");
if ((mods & JMod.PRIVATE) != 0) f.p("private");
if ((mods & JMod.FINAL) != 0) f.p("final");
if ((mods & JMod.STATIC) != 0) f.p("static");
if ((mods & JMod.ABSTRACT) != 0) f.p("abstract");
if ((mods & JMod.NATIVE) != 0) f.p("native");
if ((mods & JMod.SYNCHRONIZED) != 0) f.p("synchronized");
if ((mods & JMod.TRANSIENT) != 0) f.p("transient");
if ((mods & JMod.VOLATILE) != 0) f.p("volatile");
}
@Override
public String toString() {
StringWriter s = new StringWriter();
JFormatter f = new JFormatter(new PrintWriter(s));
this.generate(f);
return s.toString();
}
}
