| /* |
| * Copyright (c) 2000, 2012, 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 sun.jvm.hotspot.oops; |
| |
| import java.io.*; |
| import java.util.*; |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.runtime.*; |
| import sun.jvm.hotspot.types.*; |
| import sun.jvm.hotspot.utilities.*; |
| |
| // TypeArrayKlass is a proxy for TypeArrayKlass in the JVM |
| |
| public class TypeArrayKlass extends ArrayKlass { |
| static { |
| VM.registerVMInitializedObserver(new Observer() { |
| public void update(Observable o, Object data) { |
| initialize(VM.getVM().getTypeDataBase()); |
| } |
| }); |
| } |
| |
| private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { |
| Type t = db.lookupType("TypeArrayKlass"); |
| maxLength = new CIntField(t.getCIntegerField("_max_length"), 0); |
| } |
| |
| public TypeArrayKlass(Address addr) { |
| super(addr); |
| } |
| |
| private static CIntField maxLength; |
| |
| public long getMaxLength() { return maxLength.getValue(this); } |
| |
| public static final int T_BOOLEAN = 4; |
| public static final int T_CHAR = 5; |
| public static final int T_FLOAT = 6; |
| public static final int T_DOUBLE = 7; |
| public static final int T_BYTE = 8; |
| public static final int T_SHORT = 9; |
| public static final int T_INT = 10; |
| public static final int T_LONG = 11; |
| |
| public String getTypeName() { |
| switch ((int) getElementType()) { |
| case T_BOOLEAN: return "[Z"; |
| case T_CHAR: return "[C"; |
| case T_FLOAT: return "[F"; |
| case T_DOUBLE: return "[D"; |
| case T_BYTE: return "[B"; |
| case T_SHORT: return "[S"; |
| case T_INT: return "[I"; |
| case T_LONG: return "[J"; |
| } |
| return "Unknown TypeArray"; |
| } |
| |
| public String getElementTypeName() { |
| switch ((int) getElementType()) { |
| case T_BOOLEAN: return "boolean"; |
| case T_CHAR: return "char"; |
| case T_FLOAT: return "float"; |
| case T_DOUBLE: return "double"; |
| case T_BYTE: return "byte"; |
| case T_SHORT: return "short"; |
| case T_INT: return "int"; |
| case T_LONG: return "long"; |
| } |
| throw new RuntimeException("should not reach here"); |
| } |
| |
| public void printValueOn(PrintStream tty) { |
| tty.print("TypeArrayKlass for " + getTypeName()); |
| } |
| |
| public void iterateFields(MetadataVisitor visitor) { |
| super.iterateFields(visitor); |
| visitor.doCInt(maxLength, true); |
| } |
| |
| public Klass arrayKlassImpl(boolean orNull, int n) { |
| int dimension = (int) getDimension(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(dimension <= n, "check order of chain"); |
| } |
| if (dimension == n) |
| return this; |
| ObjArrayKlass ak = (ObjArrayKlass) getHigherDimension(); |
| if (ak == null) { |
| if (orNull) return null; |
| // FIXME: would need to change in reflective system to actually |
| // allocate klass |
| throw new RuntimeException("Can not allocate array klasses in debugging system"); |
| } |
| if (orNull) { |
| return ak.arrayKlassOrNull(n); |
| } |
| return ak.arrayKlass(n); |
| } |
| |
| public Klass arrayKlassImpl(boolean orNull) { |
| return arrayKlassImpl(orNull, (int) (getDimension() + 1)); |
| } |
| } |