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annotate src/luan/LuanClosure.java @ 1802:ca98dee04e08 default tip

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add Parsers.json_null
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 21 Apr 2024 21:25:15 -0600
parents c922446f53aa
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1 package luan;
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3 import luan.impl.Pointer;
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6 public abstract class LuanClosure extends LuanFunction implements LuanMutable {
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7 public Pointer[] upValues;
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8 public boolean javaOk;
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9 public final String sourceName;
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10 private boolean immutable = false;
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12 public LuanClosure(Pointer[] upValues,boolean javaOk,String sourceName) throws LuanException {
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13 this.upValues = upValues;
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14 this.javaOk = javaOk;
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15 this.sourceName = sourceName;
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16 }
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18 @Override public final boolean isImmutable() {
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19 return immutable;
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20 }
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22 @Override public final void makeImmutable() {
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23 if(immutable)
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24 return;
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25 immutable = true;
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26 LuanMutable.makeImmutable(upValues);
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27 }
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29 @Override public final Object call(Luan luan,Object... args) throws LuanException {
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30 luan.push(this);
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31 try {
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32 return doCall(luan,args);
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33 } catch(StackOverflowError e) {
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34 throw new LuanException( "stack overflow", e );
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35 } finally {
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36 luan.pop();
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37 }
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38 }
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40 @Override public final String toString() {
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41 return super.toString()+"="+sourceName;
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42 }
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44 public abstract Object doCall(Luan luan,Object[] args) throws LuanException;
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45 }