Java example source code file (NEWARRAY.java)

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Java - Java tags/keywords

allocationinstruction, class, exceptionthrower, instruction, ioexception, newarray, stackproducer, string, type

The NEWARRAY.java Java example source code

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package com.sun.org.apache.bcel.internal.generic;

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import java.io.*;
import com.sun.org.apache.bcel.internal.util.ByteSequence;

/**
 * NEWARRAY -  Create new array of basic type (int, short, ...)
 * <PRE>Stack: ..., count -> ..., arrayref

* type must be one of T_INT, T_SHORT, ... * * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm */ public class NEWARRAY extends Instruction implements AllocationInstruction, ExceptionThrower, StackProducer { private byte type; /** * Empty constructor needed for the Class.newInstance() statement in * Instruction.readInstruction(). Not to be used otherwise. */ NEWARRAY() {} public NEWARRAY(byte type) { super(com.sun.org.apache.bcel.internal.Constants.NEWARRAY, (short)2); this.type = type; } public NEWARRAY(BasicType type) { this(type.getType()); } /** * Dump instruction as byte code to stream out. * @param out Output stream */ public void dump(DataOutputStream out) throws IOException { out.writeByte(opcode); out.writeByte(type); } /** * @return numeric code for basic element type */ public final byte getTypecode() { return type; } /** * @return type of constructed array */ public final Type getType() { return new ArrayType(BasicType.getType(type), 1); } /** * @return mnemonic for instruction */ public String toString(boolean verbose) { return super.toString(verbose) + " " + com.sun.org.apache.bcel.internal.Constants.TYPE_NAMES[type]; } /** * Read needed data (e.g. index) from file. */ protected void initFromFile(ByteSequence bytes, boolean wide) throws IOException { type = bytes.readByte(); length = 2; } public Class[] getExceptions() { return new Class[] { com.sun.org.apache.bcel.internal.ExceptionConstants.NEGATIVE_ARRAY_SIZE_EXCEPTION }; } /** * 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.visitAllocationInstruction(this); v.visitExceptionThrower(this); v.visitStackProducer(this); v.visitNEWARRAY(this); } }