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annotate core/src/luan/LuanState.java @ 430:f28320fd671d

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fix LuanTable.toString() to use metatables
author Franklin Schmidt <fschmidt@gmail.com>
date Sat, 02 May 2015 20:35:26 -0600
parents 1eafb11a150d
children c6bcb8859b93
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1 package luan;
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3 import java.util.List;
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4 import java.util.ArrayList;
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5 import luan.impl.LuanCompiler;
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6 import luan.modules.BasicLuan;
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9 public abstract class LuanState implements DeepCloneable<LuanState> {
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11 final List<StackTraceElement> stackTrace = new ArrayList<StackTraceElement>();
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13 private LuanTable registry;
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15 protected LuanState() {
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16 registry = new LuanTable();
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17 }
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19 protected LuanState(LuanState luan) {}
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21 @Override public void deepenClone(LuanState clone,DeepCloner cloner) {
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22 clone.registry = cloner.deepClone(registry);
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23 }
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25 public abstract LuanTable currentEnvironment();
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26 public abstract LuanSource currentSource();
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28 public final LuanTable registry() {
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29 return registry;
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30 }
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32 public static LuanState newInstance() {
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33 return LuanCompiler.newLuanState();
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34 }
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36 public final Object eval(String cmd) throws LuanException {
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37 return eval(cmd,new LuanTable());
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38 }
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40 public final Object eval(String cmd,LuanTable env) throws LuanException {
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41 LuanFunction fn = BasicLuan.load(this,cmd,"eval",env,true);
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42 return call(fn);
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43 }
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45 public final LuanBit bit(LuanElement el) {
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46 return new LuanBit(this,el);
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47 }
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49 // convenience methods
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51 private final LuanBit JAVA = bit(LuanElement.JAVA);
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52
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53 public LuanException exception(Object msg) {
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54 return JAVA.exception(msg);
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55 }
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56
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57 public Object call(LuanFunction fn) throws LuanException {
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58 return call(fn,null,LuanFunction.NOTHING);
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59 }
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61 public Object call(LuanFunction fn,String fnName) throws LuanException {
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62 return call(fn,fnName,LuanFunction.NOTHING);
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63 }
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64
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65 public Object call(LuanFunction fn,Object[] args) throws LuanException {
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66 return call(fn,null,args);
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67 }
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69 public Object call(LuanFunction fn,String fnName,Object[] args) throws LuanException {
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70 return JAVA.call(fn,fnName,args);
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71 }
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73 public String checkString(Object obj) throws LuanException {
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74 return JAVA.checkString(obj);
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75 }
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77 public LuanFunction checkFunction(Object obj) throws LuanException {
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78 return JAVA.checkFunction(obj);
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79 }
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81 public String toString(Object obj) throws LuanException {
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82 return JAVA.toString(obj);
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83 }
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85 public boolean isLessThan(Object o1,Object o2) throws LuanException {
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86 return JAVA.isLessThan(o1,o2);
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87 }
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88 }