--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.jdeps/share/classes/com/sun/tools/classfile/AccessFlags.java Wed May 27 13:25:18 2015 -0700
@@ -0,0 +1,258 @@
+/*
+ * Copyright (c) 2007, 2013, 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 com.sun.tools.classfile;
+
+import java.io.IOException;
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+/**
+ * See JVMS, sections 4.2, 4.6, 4.7.
+ *
+ * <p><b>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.</b>
+ */
+public class AccessFlags {
+ public static final int ACC_PUBLIC = 0x0001; // class, inner, field, method
+ public static final int ACC_PRIVATE = 0x0002; // inner, field, method
+ public static final int ACC_PROTECTED = 0x0004; // inner, field, method
+ public static final int ACC_STATIC = 0x0008; // inner, field, method
+ public static final int ACC_FINAL = 0x0010; // class, inner, field, method
+ public static final int ACC_SUPER = 0x0020; // class
+ public static final int ACC_SYNCHRONIZED = 0x0020; // method
+ public static final int ACC_VOLATILE = 0x0040; // field
+ public static final int ACC_BRIDGE = 0x0040; // method
+ public static final int ACC_TRANSIENT = 0x0080; // field
+ public static final int ACC_VARARGS = 0x0080; // method
+ public static final int ACC_NATIVE = 0x0100; // method
+ public static final int ACC_INTERFACE = 0x0200; // class, inner
+ public static final int ACC_ABSTRACT = 0x0400; // class, inner, method
+ public static final int ACC_STRICT = 0x0800; // method
+ public static final int ACC_SYNTHETIC = 0x1000; // class, inner, field, method
+ public static final int ACC_ANNOTATION = 0x2000; // class, inner
+ public static final int ACC_ENUM = 0x4000; // class, inner, field
+ public static final int ACC_MANDATED = 0x8000; // class, inner, field, method
+
+ public static enum Kind { Class, InnerClass, Field, Method}
+
+ AccessFlags(ClassReader cr) throws IOException {
+ this(cr.readUnsignedShort());
+ }
+
+ public AccessFlags(int flags) {
+ this.flags = flags;
+ }
+
+ public AccessFlags ignore(int mask) {
+ return new AccessFlags(flags & ~mask);
+ }
+
+ public boolean is(int mask) {
+ return (flags & mask) != 0;
+ }
+
+ public int byteLength() {
+ return 2;
+ }
+
+ private static final int[] classModifiers = {
+ ACC_PUBLIC, ACC_FINAL, ACC_ABSTRACT
+ };
+
+ private static final int[] classFlags = {
+ ACC_PUBLIC, ACC_FINAL, ACC_SUPER, ACC_INTERFACE, ACC_ABSTRACT,
+ ACC_SYNTHETIC, ACC_ANNOTATION, ACC_ENUM
+ };
+
+ public Set<String> getClassModifiers() {
+ int f = ((flags & ACC_INTERFACE) != 0 ? flags & ~ACC_ABSTRACT : flags);
+ return getModifiers(f, classModifiers, Kind.Class);
+ }
+
+ public Set<String> getClassFlags() {
+ return getFlags(classFlags, Kind.Class);
+ }
+
+ private static final int[] innerClassModifiers = {
+ ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
+ ACC_ABSTRACT
+ };
+
+ private static final int[] innerClassFlags = {
+ ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL, ACC_SUPER,
+ ACC_INTERFACE, ACC_ABSTRACT, ACC_SYNTHETIC, ACC_ANNOTATION, ACC_ENUM
+ };
+
+ public Set<String> getInnerClassModifiers() {
+ int f = ((flags & ACC_INTERFACE) != 0 ? flags & ~ACC_ABSTRACT : flags);
+ return getModifiers(f, innerClassModifiers, Kind.InnerClass);
+ }
+
+ public Set<String> getInnerClassFlags() {
+ return getFlags(innerClassFlags, Kind.InnerClass);
+ }
+
+ private static final int[] fieldModifiers = {
+ ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
+ ACC_VOLATILE, ACC_TRANSIENT
+ };
+
+ private static final int[] fieldFlags = {
+ ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
+ ACC_VOLATILE, ACC_TRANSIENT, ACC_SYNTHETIC, ACC_ENUM
+ };
+
+ public Set<String> getFieldModifiers() {
+ return getModifiers(fieldModifiers, Kind.Field);
+ }
+
+ public Set<String> getFieldFlags() {
+ return getFlags(fieldFlags, Kind.Field);
+ }
+
+ private static final int[] methodModifiers = {
+ ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
+ ACC_SYNCHRONIZED, ACC_NATIVE, ACC_ABSTRACT, ACC_STRICT
+ };
+
+ private static final int[] methodFlags = {
+ ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
+ ACC_SYNCHRONIZED, ACC_BRIDGE, ACC_VARARGS, ACC_NATIVE, ACC_ABSTRACT,
+ ACC_STRICT, ACC_SYNTHETIC
+ };
+
+ public Set<String> getMethodModifiers() {
+ return getModifiers(methodModifiers, Kind.Method);
+ }
+
+ public Set<String> getMethodFlags() {
+ return getFlags(methodFlags, Kind.Method);
+ }
+
+ private Set<String> getModifiers(int[] modifierFlags, Kind t) {
+ return getModifiers(flags, modifierFlags, t);
+ }
+
+ private static Set<String> getModifiers(int flags, int[] modifierFlags, Kind t) {
+ Set<String> s = new LinkedHashSet<>();
+ for (int m: modifierFlags) {
+ if ((flags & m) != 0)
+ s.add(flagToModifier(m, t));
+ }
+ return s;
+ }
+
+ private Set<String> getFlags(int[] expectedFlags, Kind t) {
+ Set<String> s = new LinkedHashSet<>();
+ int f = flags;
+ for (int e: expectedFlags) {
+ if ((f & e) != 0) {
+ s.add(flagToName(e, t));
+ f = f & ~e;
+ }
+ }
+ while (f != 0) {
+ int bit = Integer.highestOneBit(f);
+ s.add("0x" + Integer.toHexString(bit));
+ f = f & ~bit;
+ }
+ return s;
+ }
+
+ private static String flagToModifier(int flag, Kind t) {
+ switch (flag) {
+ case ACC_PUBLIC:
+ return "public";
+ case ACC_PRIVATE:
+ return "private";
+ case ACC_PROTECTED:
+ return "protected";
+ case ACC_STATIC:
+ return "static";
+ case ACC_FINAL:
+ return "final";
+ case ACC_SYNCHRONIZED:
+ return "synchronized";
+ case 0x80:
+ return (t == Kind.Field ? "transient" : null);
+ case ACC_VOLATILE:
+ return "volatile";
+ case ACC_NATIVE:
+ return "native";
+ case ACC_ABSTRACT:
+ return "abstract";
+ case ACC_STRICT:
+ return "strictfp";
+ case ACC_MANDATED:
+ return "mandated";
+ default:
+ return null;
+ }
+ }
+
+ private static String flagToName(int flag, Kind t) {
+ switch (flag) {
+ case ACC_PUBLIC:
+ return "ACC_PUBLIC";
+ case ACC_PRIVATE:
+ return "ACC_PRIVATE";
+ case ACC_PROTECTED:
+ return "ACC_PROTECTED";
+ case ACC_STATIC:
+ return "ACC_STATIC";
+ case ACC_FINAL:
+ return "ACC_FINAL";
+ case 0x20:
+ return (t == Kind.Class ? "ACC_SUPER" : "ACC_SYNCHRONIZED");
+ case 0x40:
+ return (t == Kind.Field ? "ACC_VOLATILE" : "ACC_BRIDGE");
+ case 0x80:
+ return (t == Kind.Field ? "ACC_TRANSIENT" : "ACC_VARARGS");
+ case ACC_NATIVE:
+ return "ACC_NATIVE";
+ case ACC_INTERFACE:
+ return "ACC_INTERFACE";
+ case ACC_ABSTRACT:
+ return "ACC_ABSTRACT";
+ case ACC_STRICT:
+ return "ACC_STRICT";
+ case ACC_SYNTHETIC:
+ return "ACC_SYNTHETIC";
+ case ACC_ANNOTATION:
+ return "ACC_ANNOTATION";
+ case ACC_ENUM:
+ return "ACC_ENUM";
+ case ACC_MANDATED:
+ return "ACC_MANDATED";
+ default:
+ return null;
+ }
+ }
+
+ public final int flags;
+}