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annotate core/src/luan/impl/BinaryOpExpr.java @ 646:cdc70de628b5

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simplify LuanException
author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 29 Mar 2016 19:58:39 -0600
parents 859c0dedc8b6
children 8e8c30b72e9b
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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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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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3 import luan.Luan;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
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4 import luan.LuanTable;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
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5 import luan.LuanFunction;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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6 import luan.LuanException;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 37
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9 abstract class BinaryOpExpr extends CodeImpl implements Expr {
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10 final Expr op1;
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11 final Expr op2;
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Franklin Schmidt <fschmidt@gmail.com>
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13 BinaryOpExpr(Expr op1,Expr op2) {
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14 this.op1 = op1;
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15 this.op2 = op2;
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16 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 11
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 48
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18 Object arithmetic(LuanStateImpl luan,String op,Object o1,Object o2) throws LuanException {
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19 LuanFunction fn = luan.getBinHandler(op,o1,o2);
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20 if( fn != null )
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21 return Luan.first(fn.call(luan,new Object[]{o1,o2}));
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22 String type = !(o1 instanceof Number) ? Luan.type(o1) : Luan.type(o2);
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23 throw new LuanException("attempt to perform arithmetic on a "+type+" value");
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parents: 37
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24 }
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parents: 37
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26 }