/*******************************************************************************
* Copyright (c) 2012-2016 Codenvy, S.A.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.ide.ext.java.client.util;
/**
* Utility class for decoding modifier flags in Java elements.
*
* @author Evgen Vidolob
*/
public class Flags {
private static final int AccDefault = 0;
private static final int AccDefaultMethod = 0x10000;
private static final int AccPublic = 0x0001;
private static final int AccPrivate = 0x0002;
private static final int AccProtected = 0x0004;
private static final int AccStatic = 0x0008;
private static final int AccFinal = 0x0010;
private static final int AccSynchronized = 0x0020;
private static final int AccVolatile = 0x0040;
private static final int AccBridge = 0x0040;
private static final int AccTransient = 0x0080;
private static final int AccVarargs = 0x0080;
private static final int AccNative = 0x0100;
private static final int AccInterface = 0x0200;
private static final int AccAbstract = 0x0400;
private static final int AccStrictfp = 0x0800;
private static final int AccSynthetic = 0x1000;
private static final int AccAnnotation = 0x2000;
private static final int AccEnum = 0x4000;
private static final int AccSuper = 0x0020;
private static final int AccMandated = 0x8000;
private static final int AccAnnotationDefault = 0x20000;
private static final int AccDeprecated = 0x100000;
private Flags() {
// Not instantiable
}
/**
* Returns whether the given integer includes the <code>abstract</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>abstract</code> modifier is included
*/
public static boolean isAbstract(int flags) {
return (flags & AccAbstract) != 0;
}
/**
* Returns whether the given integer includes the indication that the
* element is deprecated (<code>@deprecated</code> tag in Javadoc comment).
*
* @param flags the flags
* @return <code>true</code> if the element is marked as deprecated
*/
public static boolean isDeprecated(int flags) {
return (flags & AccDeprecated) != 0;
}
/**
* Returns whether the given integer includes the <code>final</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>final</code> modifier is included
*/
public static boolean isFinal(int flags) {
return (flags & AccFinal) != 0;
}
/**
* Returns whether the given integer includes the <code>interface</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>interface</code> modifier is included
*/
public static boolean isInterface(int flags) {
return (flags & AccInterface) != 0;
}
/**
* Returns whether the given integer includes the <code>native</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>native</code> modifier is included
*/
public static boolean isNative(int flags) {
return (flags & AccNative) != 0;
}
/**
* Returns whether the given integer does not include one of the
* <code>public</code>, <code>private</code>, or <code>protected</code> flags.
*
* @param flags the flags
* @return <code>true</code> if no visibility flag is set
*/
public static boolean isPackageDefault(int flags) {
return (flags & (AccPublic | AccPrivate | AccProtected)) == 0;
}
/**
* Returns whether the given integer includes the <code>private</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>private</code> modifier is included
*/
public static boolean isPrivate(int flags) {
return (flags & AccPrivate) != 0;
}
/**
* Returns whether the given integer includes the <code>protected</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>protected</code> modifier is included
*/
public static boolean isProtected(int flags) {
return (flags & AccProtected) != 0;
}
/**
* Returns whether the given integer includes the <code>public</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>public</code> modifier is included
*/
public static boolean isPublic(int flags) {
return (flags & AccPublic) != 0;
}
/**
* Returns whether the given integer includes the <code>static</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>static</code> modifier is included
*/
public static boolean isStatic(int flags) {
return (flags & AccStatic) != 0;
}
/**
* Returns whether the given integer includes the <code>super</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>super</code> modifier is included
*/
public static boolean isSuper(int flags) {
return (flags & AccSuper) != 0;
}
/**
* Returns whether the given integer includes the <code>strictfp</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>strictfp</code> modifier is included
*/
public static boolean isStrictfp(int flags) {
return (flags & AccStrictfp) != 0;
}
/**
* Returns whether the given integer includes the <code>synchronized</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>synchronized</code> modifier is included
*/
public static boolean isSynchronized(int flags) {
return (flags & AccSynchronized) != 0;
}
/**
* Returns whether the given integer includes the indication that the
* element is synthetic.
*
* @param flags the flags
* @return <code>true</code> if the element is marked synthetic
*/
public static boolean isSynthetic(int flags) {
return (flags & AccSynthetic) != 0;
}
/**
* Returns whether the given integer includes the <code>transient</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>transient</code> modifier is included
*/
public static boolean isTransient(int flags) {
return (flags & AccTransient) != 0;
}
/**
* Returns whether the given integer includes the <code>volatile</code> modifier.
*
* @param flags the flags
* @return <code>true</code> if the <code>volatile</code> modifier is included
*/
public static boolean isVolatile(int flags) {
return (flags & AccVolatile) != 0;
}
/**
* Returns whether the given integer has the <code>AccBridge</code>
* bit set.
*
* @param flags the flags
* @return <code>true</code> if the <code>AccBridge</code> flag is included
*/
public static boolean isBridge(int flags) {
return (flags & AccBridge) != 0;
}
/**
* Returns whether the given integer has the <code>AccVarargs</code>
* bit set.
*
* @param flags the flags
* @return <code>true</code> if the <code>AccVarargs</code> flag is included
*/
public static boolean isVarargs(int flags) {
return (flags & AccVarargs) != 0;
}
/**
* Returns whether the given integer has the <code>AccEnum</code>
* bit set.
*
* @param flags the flags
* @return <code>true</code> if the <code>AccEnum</code> flag is included
*/
public static boolean isEnum(int flags) {
return (flags & AccEnum) != 0;
}
/**
* Returns whether the given integer has the <code>AccAnnotation</code>
* bit set.
*
* @param flags the flags
* @return <code>true</code> if the <code>AccAnnotation</code> flag is included
*/
public static boolean isAnnotation(int flags) {
return (flags & AccAnnotation) != 0;
}
/**
* Returns whether the given integer has the <code>AccDefaultMethod</code>
* bit set. Note that this flag represents the usage of the 'default' keyword
* on a method and should not be confused with the 'package' access visibility (which used to be called 'default access').
*
* @return <code>true</code> if the <code>AccDefaultMethod</code> flag is included
*/
public static boolean isDefaultMethod(int flags) {
return (flags & AccDefaultMethod) != 0;
}
/**
* Returns whether the given integer has the <code>AccAnnnotationDefault</code>
* bit set.
*
* @return <code>true</code> if the <code>AccAnnotationDefault</code> flag is included
*/
public static boolean isAnnnotationDefault(int flags) {
return (flags & AccAnnotationDefault) != 0;
}
}