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AccessFlags.java
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AccessFlags.java
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/*
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
* 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.internal.classfile;
import java.util.Set;
import jdk.internal.classfile.impl.AccessFlagsImpl;
import java.lang.reflect.AccessFlag;
/**
* Models the access flags for a class, method, or field. Delivered as a
* {@link jdk.internal.classfile.ClassElement}, {@link jdk.internal.classfile.FieldElement}, or
* {@link jdk.internal.classfile.MethodElement} when traversing
* the corresponding model type.
*/
public sealed interface AccessFlags
extends ClassElement, MethodElement, FieldElement
permits AccessFlagsImpl {
/**
* {@return the access flags, as a bit mask}
*/
int flagsMask();
/**
* {@return the access flags}
*/
Set<AccessFlag> flags();
/**
* {@return whether the specified flag is present} The specified flag
* should be a valid flag for the classfile location associated with this
* element otherwise false is returned.
* @param flag the flag to test
*/
boolean has(AccessFlag flag);
/**
* {@return the classfile location for this element, which is either class,
* method, or field}
*/
AccessFlag.Location location();
/**
* {@return an {@linkplain AccessFlags} for a class}
* @param mask the flags to be set, as a bit mask
*/
static AccessFlags ofClass(int mask) {
return new AccessFlagsImpl(AccessFlag.Location.CLASS, mask);
}
/**
* {@return an {@linkplain AccessFlags} for a class}
* @param flags the flags to be set
*/
static AccessFlags ofClass(AccessFlag... flags) {
return new AccessFlagsImpl(AccessFlag.Location.CLASS, flags);
}
/**
* {@return an {@linkplain AccessFlags} for a field}
* @param mask the flags to be set, as a bit mask
*/
static AccessFlags ofField(int mask) {
return new AccessFlagsImpl(AccessFlag.Location.FIELD, mask);
}
/**
* {@return an {@linkplain AccessFlags} for a field}
* @param flags the flags to be set
*/
static AccessFlags ofField(AccessFlag... flags) {
return new AccessFlagsImpl(AccessFlag.Location.FIELD, flags);
}
/**
* {@return an {@linkplain AccessFlags} for a method}
* @param mask the flags to be set, as a bit mask
*/
static AccessFlags ofMethod(int mask) {
return new AccessFlagsImpl(AccessFlag.Location.METHOD, mask);
}
/**
* {@return an {@linkplain AccessFlags} for a method}
* @param flags the flags to be set
*/
static AccessFlags ofMethod(AccessFlag... flags) {
return new AccessFlagsImpl(AccessFlag.Location.METHOD, flags);
}
}