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

import com.sun.org.apache.bcel.internal.Const;

Super class for the family of arithmetic instructions.
/** * Super class for the family of arithmetic instructions. * */
public abstract class ArithmeticInstruction extends Instruction implements TypedInstruction, StackProducer, StackConsumer {
Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.
/** * Empty constructor needed for Instruction.readInstruction. * Not to be used otherwise. */
ArithmeticInstruction() { }
Params:
  • opcode – of instruction
/** * @param opcode of instruction */
protected ArithmeticInstruction(final short opcode) { super(opcode, (short) 1); }
Returns:type associated with the instruction
/** @return type associated with the instruction */
@Override public Type getType( final ConstantPoolGen cp ) { final short _opcode = super.getOpcode(); switch (_opcode) { case Const.DADD: case Const.DDIV: case Const.DMUL: case Const.DNEG: case Const.DREM: case Const.DSUB: return Type.DOUBLE; case Const.FADD: case Const.FDIV: case Const.FMUL: case Const.FNEG: case Const.FREM: case Const.FSUB: return Type.FLOAT; case Const.IADD: case Const.IAND: case Const.IDIV: case Const.IMUL: case Const.INEG: case Const.IOR: case Const.IREM: case Const.ISHL: case Const.ISHR: case Const.ISUB: case Const.IUSHR: case Const.IXOR: return Type.INT; case Const.LADD: case Const.LAND: case Const.LDIV: case Const.LMUL: case Const.LNEG: case Const.LOR: case Const.LREM: case Const.LSHL: case Const.LSHR: case Const.LSUB: case Const.LUSHR: case Const.LXOR: return Type.LONG; default: // Never reached throw new ClassGenException("Unknown type " + _opcode); } } }