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+package org.apache.bcel.generic;
+
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ * if any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" and
+ * "Apache BCEL" must not be used to endorse or promote products
+ * derived from this software without prior written permission. For
+ * written permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ * "Apache BCEL", nor may "Apache" appear in their name, without
+ * prior written permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+
+import org.apache.bcel.classfile.ConstantPool;
+import org.apache.bcel.classfile.ConstantUtf8;
+import org.apache.bcel.classfile.ConstantNameAndType;
+import org.apache.bcel.classfile.ConstantCP;
+import org.apache.bcel.classfile.*;
+
+/**
+ * Super class for the GET/PUTxxx family of instructions.
+ *
+ * @version $Id$
+ * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ */
+public abstract class FieldInstruction extends FieldOrMethod
+ implements TypedInstruction {
+ /**
+ * Empty constructor needed for the Class.newInstance() statement in
+ * Instruction.readInstruction(). Not to be used otherwise.
+ */
+ FieldInstruction() {}
+
+ /**
+ * @param index to constant pool
+ */
+ protected FieldInstruction(short opcode, int index) {
+ super(opcode, index);
+ }
+
+ /**
+ * @return mnemonic for instruction with symbolic references resolved
+ */
+ public String toString(ConstantPool cp) {
+ return org.apache.bcel.Constants.OPCODE_NAMES[opcode] + " " +
+ cp.constantToString(index, org.apache.bcel.Constants.CONSTANT_Fieldref);
+ }
+
+ /** @return size of field (1 or 2)
+ */
+ protected int getFieldSize(ConstantPoolGen cpg) {
+ return getType(cpg).getSize();
+ }
+
+ /** @return return type of referenced field
+ */
+ public Type getType(ConstantPoolGen cpg) {
+ return getFieldType(cpg);
+ }
+
+ /** @return type of field
+ */
+ public Type getFieldType(ConstantPoolGen cpg) {
+ return Type.getType(getSignature(cpg));
+ }
+
+ /** @return name of referenced field.
+ */
+ public String getFieldName(ConstantPoolGen cpg) {
+ return getName(cpg);
+ }
+}
+