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annotate core/src/luan/impl/SetTableEntry.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
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4eaee12f6c65 move luan/interp to impl
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 112
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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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3 import luan.LuanException;
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4 import luan.LuanTable;
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5 import luan.Luan;
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6 import luan.LuanFunction;
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7 import luan.LuanMeta;
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8 import luan.modules.JavaLuan;
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11 final class SetTableEntry extends CodeImpl implements Settable {
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12 private final Expr tableExpr;
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13 private final Expr keyExpr;
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15 SetTableEntry(Expr tableExpr,Expr keyExpr) {
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16 this.tableExpr = tableExpr;
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17 this.keyExpr = keyExpr;
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18 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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20 @Override public void set(LuanStateImpl luan,Object value) throws LuanException {
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21 newIndex( luan, tableExpr.eval(luan), keyExpr.eval(luan), value );
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22 }
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24 private void newIndex(LuanStateImpl luan,Object t,Object key,Object value) throws LuanException {
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25 if( t instanceof LuanTable ) {
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26 LuanTable tbl = (LuanTable)t;
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27 tbl.put(luan,key,value);
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28 return;
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29 }
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30 if( t != null && luan.hasJava() )
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31 JavaLuan.__new_index(luan,t,key,value);
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32 else
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33 throw new LuanException( "attempt to index a " + Luan.type(t) + " value" );
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34 }
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36 }