diff agent/src/share/classes/sun/jvm/hotspot/jdi/ArrayReferenceImpl.java @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/jdi/ArrayReferenceImpl.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,171 @@
+/*
+ * Copyright 2002-2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.jdi;
+
+import com.sun.jdi.*;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Iterator;
+
+import sun.jvm.hotspot.oops.Instance;
+import sun.jvm.hotspot.oops.Array;
+import sun.jvm.hotspot.runtime.BasicType;
+import sun.jvm.hotspot.utilities.Assert;
+
+public class ArrayReferenceImpl extends ObjectReferenceImpl
+    implements ArrayReference
+{
+    private int length;
+    ArrayReferenceImpl(VirtualMachine aVm, sun.jvm.hotspot.oops.Array aRef) {
+        super(aVm, aRef);
+        length = (int) aRef.getLength();
+    }
+
+    ArrayTypeImpl arrayType() {
+        return (ArrayTypeImpl)type();
+    }
+
+    /**
+     * Return array length.
+     */
+    public int length() {
+        return length;
+    }
+
+    public Value getValue(int index) {
+        List list = getValues(index, 1);
+        return (Value)list.get(0);
+    }
+
+    public List getValues() {
+        return getValues(0, -1);
+    }
+
+    /**
+     * Validate that the range to set/get is valid.
+     * length of -1 (meaning rest of array) has been converted
+     * before entry.
+     */
+    private void validateArrayAccess(int index, int len) {
+        // because length can be computed from index,
+        // index must be tested first for correct error message
+        if ((index < 0) || (index > length())) {
+            throw new IndexOutOfBoundsException(
+                        "Invalid array index: " + index);
+        }
+        if (len < 0) {
+            throw new IndexOutOfBoundsException(
+                        "Invalid array range length: " + len);
+        }
+        if (index + len > length()) {
+            throw new IndexOutOfBoundsException(
+                        "Invalid array range: " +
+                        index + " to " + (index + len - 1));
+        }
+    }
+
+    public List getValues(int index, int len) {
+        if (len == -1) { // -1 means the rest of the array
+           len = length() - index;
+        }
+        validateArrayAccess(index, len);
+        List vals = new ArrayList();
+        if (len == 0) {
+            return vals;
+        }
+
+        sun.jvm.hotspot.oops.TypeArray typeArray = null;
+        sun.jvm.hotspot.oops.ObjArray objArray = null;
+        if (ref() instanceof sun.jvm.hotspot.oops.TypeArray) {
+            typeArray = (sun.jvm.hotspot.oops.TypeArray)ref();
+        } else if (ref() instanceof sun.jvm.hotspot.oops.ObjArray) {
+            objArray = (sun.jvm.hotspot.oops.ObjArray)ref();
+        } else {
+            throw new RuntimeException("should not reach here");
+        }
+
+        char c = arrayType().componentSignature().charAt(0);
+        BasicType variableType = BasicType.charToBasicType(c);
+
+        final int limit = index + len;
+        for (int ii = index; ii < limit; ii++) {
+            ValueImpl valueImpl;
+            if (variableType == BasicType.T_BOOLEAN) {
+                valueImpl = (BooleanValueImpl) vm.mirrorOf(typeArray.getBooleanAt(ii));
+            } else if (variableType == BasicType.T_CHAR) {
+                valueImpl = (CharValueImpl) vm.mirrorOf(typeArray.getCharAt(ii));
+            } else if (variableType == BasicType.T_FLOAT) {
+                valueImpl = (FloatValueImpl) vm.mirrorOf(typeArray.getFloatAt(ii));
+            } else if (variableType == BasicType.T_DOUBLE) {
+                valueImpl =  (DoubleValueImpl) vm.mirrorOf(typeArray.getDoubleAt(ii));
+            } else if (variableType == BasicType.T_BYTE) {
+                valueImpl =  (ByteValueImpl) vm.mirrorOf(typeArray.getByteAt(ii));
+            } else if (variableType == BasicType.T_SHORT) {
+                valueImpl =  (ShortValueImpl) vm.mirrorOf(typeArray.getShortAt(ii));
+            } else if (variableType == BasicType.T_INT) {
+                valueImpl =  (IntegerValueImpl) vm.mirrorOf(typeArray.getIntAt(ii));
+            } else if (variableType == BasicType.T_LONG) {
+                valueImpl =  (LongValueImpl) vm.mirrorOf(typeArray.getLongAt(ii));
+            } else if (variableType == BasicType.T_OBJECT) {
+                // we may have an [Ljava/lang/Object; - i.e., Object[] with the
+                // elements themselves may be arrays because every array is an Object.
+                valueImpl = (ObjectReferenceImpl) vm.objectMirror(objArray.getObjAt(ii));
+            } else if (variableType == BasicType.T_ARRAY) {
+                valueImpl = (ArrayReferenceImpl) vm.arrayMirror((Array) objArray.getObjAt(ii));
+            } else {
+                throw new RuntimeException("should not reach here");
+            }
+            vals.add (valueImpl);
+        }
+        return vals;
+    }
+
+    public void setValue(int index, Value value)
+            throws InvalidTypeException,
+                   ClassNotLoadedException {
+        vm.throwNotReadOnlyException("ArrayReference.setValue(...)");
+    }
+
+    public void setValues(List values)
+            throws InvalidTypeException,
+                   ClassNotLoadedException {
+        setValues(0, values, 0, -1);
+    }
+
+    public void setValues(int index, List values,
+                          int srcIndex, int length)
+            throws InvalidTypeException,
+                   ClassNotLoadedException {
+
+        vm.throwNotReadOnlyException("ArrayReference.setValue(...)");
+
+    }
+
+    public String toString() {
+        return "instance of " + arrayType().componentTypeName() +
+               "[" + length() + "] (id=" + uniqueID() + ")";
+    }
+}