view src/luan/interp/MulExpr.java @ 148:dfd0f33b584e

minor parser fix git-svn-id: https://luan-java.googlecode.com/svn/trunk@149 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Mon, 16 Jun 2014 04:29:33 +0000
parents 8ede219cd111
children
line wrap: on
line source

package luan.interp;

import luan.Luan;
import luan.LuanException;
import luan.LuanSource;


final class MulExpr extends BinaryOpExpr {

	MulExpr(LuanSource.Element se,Expr op1,Expr op2) {
		super(se,op1,op2);
	}

	@Override public Object eval(LuanStateImpl luan) throws LuanException {
		Object o1 = op1.eval(luan);
		Object o2 = op2.eval(luan);
		Number n1 = Luan.toNumber(o1);
		Number n2 = Luan.toNumber(o2);
		if( n1 != null && n2 != null )
			return n1.doubleValue() * n2.doubleValue();
		return arithmetic(luan,"__mul",o1,o2);
	}
}