Mercurial Hosting > luan
annotate src/luan/interp/Chunk.java @ 40:e3624b7cd603
implement stack trace
git-svn-id: https://luan-java.googlecode.com/svn/trunk@41 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Fri, 21 Dec 2012 10:45:54 +0000 |
parents | c3eab5a3ce3c |
children | 64ecb7a3aad7 |
rev | line source |
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1 package luan.interp; |
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2 |
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3 import luan.LuaException; |
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4 import luan.LuaSource; |
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5 |
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6 |
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7 final class Chunk extends CodeImpl implements Expr { |
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8 final Stmt block; |
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9 final int stackSize; |
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10 final int numArgs; |
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11 final boolean isVarArg; |
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12 final UpValue.Getter[] upValueGetters; |
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13 |
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14 Chunk(LuaSource.Element se,Stmt block,int stackSize,int numArgs,boolean isVarArg,UpValue.Getter[] upValueGetters) { |
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15 super(se); |
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16 this.block = block; |
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17 this.stackSize = stackSize; |
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18 this.numArgs = numArgs; |
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19 this.isVarArg = isVarArg; |
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20 this.upValueGetters = upValueGetters; |
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21 fixReturns(block); |
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22 } |
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23 |
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24 private static void fixReturns(Stmt stmt) { |
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25 if( stmt instanceof ReturnStmt ) { |
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26 ReturnStmt rs = (ReturnStmt)stmt; |
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27 rs.throwReturnException = false; |
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28 } else if( stmt instanceof Block ) { |
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29 Block b = (Block)stmt; |
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30 fixReturns( b.stmts[b.stmts.length-1] ); |
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31 } else if( stmt instanceof IfStmt ) { |
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32 IfStmt is = (IfStmt)stmt; |
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33 fixReturns( is.thenStmt ); |
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34 fixReturns( is.elseStmt ); |
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35 } |
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36 } |
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37 |
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38 LuaClosure newClosure(LuaStateImpl lua) { |
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39 return new LuaClosure(this,lua); |
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40 } |
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41 |
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42 @Override public Object eval(LuaStateImpl lua) { |
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43 return newClosure(lua); |
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44 } |
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45 |
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46 } |