Mercurial > hg > graal-jvmci-8
view jvmci/jdk.vm.ci.meta/src/jdk/vm/ci/meta/ModifiersProvider.java @ 24155:88bd5f7522a1 jvmci-0.30
update hgignore and undo change to hotspot/.project
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 07 Jul 2017 15:08:58 +0200 |
parents | b39b4a11c1d1 |
children |
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/* * Copyright (c) 2014, 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. * * 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.vm.ci.meta; import static java.lang.reflect.Modifier.FINAL; import static java.lang.reflect.Modifier.PRIVATE; import static java.lang.reflect.Modifier.PROTECTED; import static java.lang.reflect.Modifier.PUBLIC; import static java.lang.reflect.Modifier.STATIC; import static java.lang.reflect.Modifier.TRANSIENT; import static java.lang.reflect.Modifier.VOLATILE; import java.lang.reflect.Modifier; /** * A Java element (i.e., a class, interface, field or method) that is described by a set of Java * language {@linkplain #getModifiers() modifiers}. */ public interface ModifiersProvider { /** * Returns the modifiers for this element. */ int getModifiers(); /** * @see Modifier#isInterface(int) */ default boolean isInterface() { return Modifier.isInterface(getModifiers()); } /** * @see Modifier#isSynchronized(int) */ default boolean isSynchronized() { return Modifier.isSynchronized(getModifiers()); } /** * @see Modifier#isStatic(int) */ default boolean isStatic() { return Modifier.isStatic(getModifiers()); } /** * The setting of the final modifier bit for types is somewhat confusing, so don't export * isFinal by default. Subclasses like {@link ResolvedJavaField} and {@link ResolvedJavaMethod} * can export it as isFinal, but {@link ResolvedJavaType} can provide a more sensible equivalent * like {@link ResolvedJavaType#isLeaf}. * * @see Modifier#isFinal(int) */ default boolean isFinalFlagSet() { return Modifier.isFinal(getModifiers()); } /** * @see Modifier#isPublic(int) */ default boolean isPublic() { return Modifier.isPublic(getModifiers()); } /** * Determines if this element is neither {@linkplain #isPublic() public}, * {@linkplain #isProtected() protected} nor {@linkplain #isPrivate() private}. */ default boolean isPackagePrivate() { return ((PUBLIC | PROTECTED | PRIVATE) & getModifiers()) == 0; } /** * @see Modifier#isPrivate(int) */ default boolean isPrivate() { return Modifier.isPrivate(getModifiers()); } /** * @see Modifier#isProtected(int) */ default boolean isProtected() { return Modifier.isProtected(getModifiers()); } /** * @see Modifier#isTransient(int) */ default boolean isTransient() { return Modifier.isTransient(getModifiers()); } /** * @see Modifier#isStrict(int) */ default boolean isStrict() { return Modifier.isStrict(getModifiers()); } /** * @see Modifier#isVolatile(int) */ default boolean isVolatile() { return Modifier.isVolatile(getModifiers()); } /** * @see Modifier#isNative(int) */ default boolean isNative() { return Modifier.isNative(getModifiers()); } /** * @see Modifier#isAbstract(int) */ default boolean isAbstract() { return Modifier.isAbstract(getModifiers()); } /** * Checks that the method is concrete and not abstract. * * @return whether the method is a concrete method */ default boolean isConcrete() { return !isAbstract(); } /** * This is removed in JDK 9 and should not be used. It used to rely on use of reflection to read * non-public values from {@link Modifier}. Such cross-module (i.e., {@code jdk.vm.ci} to * {@code java.base}) reflection is disabled in 9 and will require a VM option such * {@code --add-exports-private} to be enabled. */ @Deprecated static int jvmFieldModifiers() { // Reflection replaced with hard coded values (which will not change in JDK 8). final int accEnum = 0x4000; final int accSynthethic = 0x1000; return PUBLIC | PRIVATE | PROTECTED | STATIC | FINAL | VOLATILE | TRANSIENT | accEnum | accSynthethic; } }