package org.aspectj.apache.bcel.generic;
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import java.io.DataOutputStream;
import java.io.IOException;
import org.aspectj.apache.bcel.Constants;
import org.aspectj.apache.bcel.ExceptionConstants;
import org.aspectj.apache.bcel.classfile.ConstantPool;
MULTIANEWARRAY - Create new mutidimensional array of references
Stack: ..., count1, [count2, ...] -> ..., arrayref
Author: M. Dahm Version: $Id: MULTIANEWARRAY.java,v 1.4 2009/10/05 17:35:36 aclement Exp $
/**
* MULTIANEWARRAY - Create new mutidimensional array of references
*
* <PRE>
* Stack: ..., count1, [count2, ...] -> ..., arrayref
* </PRE>
*
* @version $Id: MULTIANEWARRAY.java,v 1.4 2009/10/05 17:35:36 aclement Exp $
* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
*/
public class MULTIANEWARRAY extends InstructionCP {
private short dimensions;
public MULTIANEWARRAY(int index, short dimensions) {
super(Constants.MULTIANEWARRAY, index);
this.dimensions = dimensions;
}
Dump instruction as byte code to stream out.
Params: - out – Output stream
/**
* Dump instruction as byte code to stream out.
*
* @param out Output stream
*/
public void dump(DataOutputStream out) throws IOException {
out.writeByte(opcode);
out.writeShort(index);
out.writeByte(dimensions);
}
/**
* Read needed data (i.e., no. dimension) from file.
*/
// protected void initFromFile(ByteSequence bytes, boolean wide)
// throws IOException
// {
// super.initFromFile(bytes, wide);
// dimensions = bytes.readByte();
// // length = 4;
// }
Returns: number of dimensions to be created
/**
* @return number of dimensions to be created
*/
public final short getDimensions() {
return dimensions;
}
Returns: mnemonic for instruction
/**
* @return mnemonic for instruction
*/
public String toString(boolean verbose) {
return super.toString(verbose) + " " + index + " " + dimensions;
}
Returns: mnemonic for instruction with symbolic references resolved
/**
* @return mnemonic for instruction with symbolic references resolved
*/
public String toString(ConstantPool cp) {
return super.toString(cp) + " " + dimensions;
}
Also works for instructions whose stack effect depends on the constant pool entry they reference.
Returns: Number of words consumed from stack by this instruction
/**
* Also works for instructions whose stack effect depends on the constant pool entry they reference.
*
* @return Number of words consumed from stack by this instruction
*/
public int consumeStack(ConstantPool cpg) {
return dimensions;
}
public Class[] getExceptions() {
Class[] cs = new Class[2 + ExceptionConstants.EXCS_CLASS_AND_INTERFACE_RESOLUTION.length];
System.arraycopy(ExceptionConstants.EXCS_CLASS_AND_INTERFACE_RESOLUTION, 0, cs, 0,
ExceptionConstants.EXCS_CLASS_AND_INTERFACE_RESOLUTION.length);
cs[ExceptionConstants.EXCS_CLASS_AND_INTERFACE_RESOLUTION.length + 1] = ExceptionConstants.NEGATIVE_ARRAY_SIZE_EXCEPTION;
cs[ExceptionConstants.EXCS_CLASS_AND_INTERFACE_RESOLUTION.length] = ExceptionConstants.ILLEGAL_ACCESS_ERROR;
return cs;
}
public ObjectType getLoadClassType(ConstantPool cpg) {
Type t = getType(cpg);
if (t instanceof ArrayType) {
t = ((ArrayType) t).getBasicType();
}
return (t instanceof ObjectType) ? (ObjectType) t : null;
}
// /**
// * Call corresponding visitor method(s). The order is:
// * Call visitor methods of implemented interfaces first, then
// * call methods according to the class hierarchy in descending order,
// * i.e., the most specific visitXXX() call comes last.
// *
// * @param v Visitor object
// */
// public void accept(Visitor v) {
// v.visitLoadClass(this);
// v.visitAllocationInstruction(this);
// v.visitExceptionThrower(this);
// v.visitTypedInstruction(this);
// v.visitCPInstruction(this);
// v.visitMULTIANEWARRAY(this);
// }
public boolean equals(Object other) {
if (!(other instanceof MULTIANEWARRAY)) {
return false;
}
MULTIANEWARRAY o = (MULTIANEWARRAY) other;
return o.opcode == opcode && o.index == index && o.dimensions == dimensions;
}
public int hashCode() {
return opcode * 37 + index * (dimensions + 17);
}
}