Mercurial Hosting > luan
annotate core/src/luan/LuanState.java @ 409:abce9b0041b0
remove LuanState.require(), eval() is good enough
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Wed, 29 Apr 2015 15:26:54 -0600 |
parents | 1b38de2b1845 |
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1 package luan; |
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2 |
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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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7 |
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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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12 |
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13 private LuanTable registry; |
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14 |
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15 protected LuanState() { |
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16 registry = new LuanTable(); |
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17 } |
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18 |
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19 protected LuanState(LuanState luan) {} |
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20 |
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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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24 |
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25 public abstract LuanTable currentEnvironment(); |
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26 public abstract LuanSource currentSource(); |
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27 |
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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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31 |
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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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35 |
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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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39 |
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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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44 |
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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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48 |
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49 public final static Object getHandler(String op,LuanTable table) { |
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50 LuanTable t = table.getMetatable(); |
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51 return t==null ? null : t.get(op); |
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52 } |
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53 |
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54 // convenience methods |
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55 |
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56 private final LuanBit JAVA = bit(LuanElement.JAVA); |
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57 |
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58 public LuanException exception(Object msg) { |
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59 return JAVA.exception(msg); |
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60 } |
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61 |
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62 public Object call(LuanFunction fn) throws LuanException { |
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63 return call(fn,null,LuanFunction.NOTHING); |
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64 } |
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65 |
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66 public Object call(LuanFunction fn,String fnName) throws LuanException { |
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67 return call(fn,fnName,LuanFunction.NOTHING); |
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68 } |
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69 |
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70 public Object call(LuanFunction fn,Object[] args) throws LuanException { |
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71 return call(fn,null,args); |
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72 } |
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73 |
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74 public Object call(LuanFunction fn,String fnName,Object[] args) throws LuanException { |
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75 return JAVA.call(fn,fnName,args); |
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76 } |
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77 |
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78 public LuanFunction checkFunction(Object obj) throws LuanException { |
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79 return JAVA.checkFunction(obj); |
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80 } |
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81 |
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82 public String toString(Object obj) throws LuanException { |
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83 return JAVA.toString(obj); |
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84 } |
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85 |
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86 public String repr(Object obj) throws LuanException { |
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87 return JAVA.repr(obj); |
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88 } |
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89 |
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90 public boolean isLessThan(Object o1,Object o2) throws LuanException { |
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91 return JAVA.isLessThan(o1,o2); |
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92 } |
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93 } |