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annotate core/src/luan/impl/BinaryOpExpr.java @ 576:4723d22062ce

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remove LuanBit
author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 13 Jul 2015 20:38:26 -0600
parents b48cfa14ba60
children 60c549d43988
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4eaee12f6c65 move luan/interp to impl
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 88
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1 package luan.impl;
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3 import luan.Luan;
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4 import luan.LuanTable;
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5 import luan.LuanFunction;
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6 import luan.LuanException;
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7 import luan.LuanElement;
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10 abstract class BinaryOpExpr extends CodeImpl implements Expr {
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11 final Expr op1;
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12 final Expr op2;
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14 BinaryOpExpr(LuanElement el,Expr op1,Expr op2) {
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15 super(el);
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16 this.op1 = op1;
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17 this.op2 = op2;
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18 }
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20 Object arithmetic(LuanStateImpl luan,String op,Object o1,Object o2) throws LuanException {
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21 luan.push(el,null);
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22 try {
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23 LuanFunction fn = luan.getBinHandler(op,o1,o2);
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24 if( fn != null )
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25 return Luan.first(fn.call(luan,new Object[]{o1,o2}));
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26 String type = !(o1 instanceof Number) ? Luan.type(o1) : Luan.type(o2);
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27 throw luan.exception("attempt to perform arithmetic on a "+type+" value");
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28 } finally {
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29 luan.pop();
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30 }
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31 }
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33 }