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annotate core/src/luan/impl/Closure.java @ 681:f1c935be546d

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improve stack trace
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 14 Apr 2016 20:10:38 -0600
parents d3e5414bdf4c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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4eaee12f6c65 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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2428ecfed375 change LuanFunction.call() from returning Object[] to returning Object, to reduce garbage collection
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.LuanFunction;
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5 import luan.LuanState;
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6 import luan.LuanException;
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7 import luan.DeepCloner;
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8 import luan.DeepCloneable;
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9 import luan.LuanJava;
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12 public abstract class Closure extends LuanFunction implements DeepCloneable, Cloneable {
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13 public Pointer[] upValues;
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14 public LuanJava java;
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16 public Closure(int nUpValues,LuanJava java) throws LuanException {
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17 this.upValues = new Pointer[nUpValues];
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18 this.java = java;
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19 }
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21 @Override public Closure shallowClone() {
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22 try {
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23 return (Closure)clone();
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24 } catch(CloneNotSupportedException e) {
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25 throw new RuntimeException(e);
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26 }
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27 }
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29 @Override public void deepenClone(DeepCloneable dc,DeepCloner cloner) {
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30 Closure clone = (Closure)dc;
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31 clone.upValues = (Pointer[])cloner.deepClone(upValues);
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32 clone.java = (LuanJava)cloner.deepClone(java);
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33 }
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35 @Override public final Object call(LuanState luan,Object[] args) throws LuanException {
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36 LuanJava old = luan.java;
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37 luan.java = java;
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38 try {
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39 return doCall(luan,args);
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40 } catch(StackOverflowError e) {
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41 throw new LuanException( "stack overflow" );
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42 } finally {
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43 luan.java = old;
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44 }
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45 }
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47 public abstract Object doCall(LuanState luan,Object[] args) throws LuanException;
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48 }