/**
*
*/
package cn.wensiqun.asmsupport.operators.numerical.crement;
import cn.wensiqun.asmsupport.Crementable;
import cn.wensiqun.asmsupport.Parameterized;
import cn.wensiqun.asmsupport.block.ProgramBlock;
import cn.wensiqun.asmsupport.clazz.AClass;
import cn.wensiqun.asmsupport.definition.variable.GlobalVariable;
import cn.wensiqun.asmsupport.definition.variable.LocalVariable;
import cn.wensiqun.asmsupport.definition.variable.MemberVariable;
import cn.wensiqun.asmsupport.operators.Operators;
import cn.wensiqun.asmsupport.operators.numerical.arithmetic.AbstractArithmetic;
import cn.wensiqun.asmsupport.operators.numerical.arithmetic.Subtraction;
import cn.wensiqun.asmsupport.operators.util.OperatorFactory;
/**
* @author 温斯群(Joe Wen)
*
*/
public abstract class AbstractDecrement extends AbstractCrement {
protected AbstractDecrement(ProgramBlock block, Crementable factor) {
super(block, factor);
operator = Operators.DECREMENT;
AClass ftrcls = factor.getParamterizedType();
if(factor instanceof GlobalVariable ||
((ftrcls.getCastOrder() <= AClass.BOOLEAN_ACLASS.getCastOrder() ||
ftrcls.getCastOrder() > AClass.INT_ACLASS.getCastOrder()) &&
factor instanceof LocalVariable)){
AbstractArithmetic arithOperator = OperatorFactory.newOperator(Subtraction.class,
new Class<?>[]{ProgramBlock.class, Parameterized.class, Parameterized.class},
block, factor, getValue());
arithOperator.prepare();
MemberVariable mvar = (MemberVariable) factor;
assigner = block.assign(mvar, arithOperator);
assigner.prepare();
block.removeExe(assigner);
}
}
@Override
public void executing() {
if(assigner == null){
LocalVariable lv = (LocalVariable) factor;
//insnHelper.iinc(lv.getScopeLogicVar().getPosition()[0], -1);
insnHelper.iinc(lv.getScopeLogicVar().getInitStartPos(), -1);
} else {
assigner.execute();
}
}
}