Mercurial Hosting > luan
annotate core/src/luan/impl/ForStmt.java @ 623:d592bf0947a9
remove "~a" idea
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Thu, 07 Jan 2016 03:58:51 -0700 |
parents | d7a85fbe15f1 |
children | 859c0dedc8b6 |
rev | line source |
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move luan/interp to impl
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan.impl; |
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2 |
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rename Lua to Luan
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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5 import luan.LuanFunction; |
460 | 6 import luan.LuanElement; |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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7 |
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8 |
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minor
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9 final class ForStmt extends CodeImpl implements Stmt { |
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10 private final int iVars; |
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11 private final int nVars; |
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12 private final Expr iterExpr; |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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13 private final Stmt block; |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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14 |
460 | 15 ForStmt(LuanElement el,int iVars,int nVars,Expr iterExpr,Stmt block) { |
16 super(el); | |
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17 this.iVars = iVars; |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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18 this.nVars = nVars; |
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19 this.iterExpr = iterExpr; |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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20 this.block = block; |
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21 } |
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22 |
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23 @Override public void eval(LuanStateImpl luan) throws LuanException { |
577 | 24 Object fnObj = iterExpr.eval(luan); |
576 | 25 luan.push( iterExpr.el(), iterExpr.el().text() ); |
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26 try { |
577 | 27 LuanFunction iter = luan.checkFunction(fnObj); |
576 | 28 String name = iterExpr.el().text(); |
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29 while(true) { |
576 | 30 Object vals = iter.call(luan); |
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31 if( vals==null ) |
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32 break; |
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33 if( vals instanceof Object[] ) { |
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34 Object[] a = (Object[])vals; |
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Http.request is now pure luan
Franklin Schmidt <fschmidt@gmail.com>
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35 if( a.length==0 || a[0]==null ) |
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36 break; |
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37 for( int i=0; i<nVars; i++ ) { |
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38 luan.stackSet( iVars+i, i < a.length ? a[i] : null ); |
2428ecfed375
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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39 } |
2428ecfed375
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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40 } else { |
2428ecfed375
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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41 luan.stackSet( iVars, vals ); |
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42 for( int i=1; i<nVars; i++ ) { |
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43 luan.stackSet( iVars+i, null ); |
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44 } |
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45 } |
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46 block.eval(luan); |
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47 } |
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48 } catch(BreakException e) { |
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49 } finally { |
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50 luan.stackClear(iVars,iVars+nVars); |
576 | 51 luan.pop(); |
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52 } |
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53 } |
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54 |
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55 } |