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annotate src/luan/interp/SetStmt.java @ 154:c2e5101682ae

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Expr extends Expressions git-svn-id: https://luan-java.googlecode.com/svn/trunk@155 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Tue, 17 Jun 2014 09:55:43 +0000
parents 2428ecfed375
children
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan.interp;
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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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4 import luan.LuanException;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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7 final class SetStmt implements Stmt {
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8 private final Settable[] vars;
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9 private final Expressions expressions;
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11 SetStmt(Settable var,Expr expr) {
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c2e5101682ae Expr extends Expressions
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12 this( new Settable[]{var}, expr );
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13 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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15 SetStmt(Settable[] vars,Expressions expressions) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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16 this.vars = vars;
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17 this.expressions = expressions;
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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 eval(LuanStateImpl luan) throws LuanException {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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21 final Object obj = expressions.eval(luan);
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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22 if( obj instanceof Object[] ) {
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23 Object[] vals = (Object[])obj;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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24 for( int i=0; i<vars.length; i++ ) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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25 Object val = i < vals.length ? vals[i] : null;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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26 vars[i].set(luan,val);
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27 }
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parents: 49
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28 } else {
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29 vars[0].set(luan,obj);
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30 for( int i=1; i<vars.length; i++ ) {
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31 vars[i].set(luan,null);
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32 }
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33 }
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34 }
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36 }