Mercurial Hosting > luan
annotate src/luan/LuanState.java @ 1264:d41997776788
fix onClose issues
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Tue, 25 Sep 2018 17:03:57 -0600 |
parents | cb422386f6b5 |
children | 9fa8b8389578 |
rev | line source |
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1 package luan; |
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2 |
527 | 3 import java.io.Closeable; |
4 import java.io.IOException; | |
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5 import java.util.Map; |
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6 import java.util.HashMap; |
1222 | 7 import org.slf4j.Logger; |
8 import org.slf4j.LoggerFactory; | |
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9 import luan.impl.LuanCompiler; |
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10 import luan.modules.BasicLuan; |
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11 import luan.modules.JavaLuan; |
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12 |
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13 |
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14 public final class LuanState implements LuanCloneable { |
1222 | 15 private static final Logger logger = LoggerFactory.getLogger(LuanState.class); |
16 | |
1133 | 17 public LuanJavaOk javaOk; |
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18 private Map registry; |
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19 public boolean isLocked = false; |
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20 |
1264 | 21 public interface OnClose extends Closeable { |
22 public void onClose(Closeable c); | |
23 } | |
24 public OnClose onClose; | |
25 | |
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26 public LuanState() { |
1133 | 27 javaOk = new LuanJavaOk(); |
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28 registry = new HashMap(); |
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29 } |
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30 |
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31 private LuanState(LuanState luan) {} |
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32 |
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33 @Override public LuanState shallowClone() { |
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34 return new LuanState(this); |
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35 } |
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36 |
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37 @Override public void deepenClone(LuanCloneable dc,LuanCloner cloner) { |
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38 LuanState clone = (LuanState)dc; |
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39 clone.registry = cloner.clone(registry); |
1133 | 40 clone.javaOk = (LuanJavaOk)cloner.clone(javaOk); |
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41 if( cloner.type == LuanCloner.Type.INCREMENTAL ) |
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42 isLocked = true; |
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43 } |
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44 |
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45 public Map registry() { |
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46 return registry; |
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47 } |
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48 |
527 | 49 public void onClose(Closeable c) { |
1264 | 50 if( onClose != null ) |
51 onClose.onClose(c); | |
1202 | 52 } |
53 | |
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54 public final Object eval(String cmd,Object... args) throws LuanException { |
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55 return Luan.load(cmd,"eval").call(this,args); |
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56 } |
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57 /* |
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58 public final Object eval(String cmd,LuanTable env) throws LuanException { |
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59 LuanFunction fn = BasicLuan.load(this,cmd,"eval",env,true); |
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60 return fn.call(this); |
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61 } |
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62 */ |
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63 |
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64 public String toString(Object obj) throws LuanException { |
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65 if( obj instanceof LuanTable ) { |
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66 LuanTable tbl = (LuanTable)obj; |
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67 return tbl.toString(this); |
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68 } |
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69 if( obj == null ) |
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70 return "nil"; |
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71 if( obj instanceof Number ) |
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72 return Luan.toString((Number)obj); |
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73 if( obj instanceof byte[] ) |
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74 return "binary: " + Integer.toHexString(obj.hashCode()); |
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75 return obj.toString(); |
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76 } |
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77 |
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78 public Object index(Object obj,Object key) throws LuanException { |
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79 if( obj instanceof LuanTable ) { |
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80 LuanTable tbl = (LuanTable)obj; |
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81 return tbl.get(this,key); |
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82 } |
1133 | 83 if( obj != null && javaOk.ok ) |
795 | 84 return JavaLuan.__index(this,obj,key); |
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85 throw new LuanException("attempt to index a " + Luan.type(obj) + " value" ); |
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86 } |
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87 |
576 | 88 /* |
89 public Number checkNumber(Object obj) throws LuanException { | |
90 if( obj instanceof Number ) | |
91 return (Number)obj; | |
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92 throw new LuanException( "attempt to perform arithmetic on '"+context()+"' (a " + Luan.type(obj) + " value)" ); |
576 | 93 } |
94 */ | |
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95 |
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96 |
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97 public boolean isLessThan(Object o1,Object o2) throws LuanException { |
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98 if( o1 instanceof Number && o2 instanceof Number ) { |
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99 Number n1 = (Number)o1; |
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100 Number n2 = (Number)o2; |
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101 return n1.doubleValue() < n2.doubleValue(); |
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102 } |
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103 if( o1 instanceof String && o2 instanceof String ) { |
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104 String s1 = (String)o1; |
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105 String s2 = (String)o2; |
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106 return s1.compareTo(s2) < 0; |
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107 } |
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108 LuanFunction fn = getBinHandler("__lt",o1,o2); |
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109 if( fn != null ) |
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110 return Luan.checkBoolean( Luan.first(fn.call(this,new Object[]{o1,o2})) ); |
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111 throw new LuanException( "attempt to compare " + Luan.type(o1) + " with " + Luan.type(o2) ); |
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112 } |
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113 |
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114 public LuanFunction getBinHandler(String op,Object o1,Object o2) throws LuanException { |
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115 if( o1 instanceof LuanTable ) { |
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116 LuanFunction f1 = getHandlerFunction(op,(LuanTable)o1); |
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117 if( f1 != null ) |
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118 return f1; |
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119 } |
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120 return o2 instanceof LuanTable ? getHandlerFunction(op,(LuanTable)o2) : null; |
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121 } |
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122 |
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123 public LuanFunction getHandlerFunction(String op,LuanTable t) throws LuanException { |
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124 Object f = t.getHandler(this,op); |
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125 if( f == null ) |
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126 return null; |
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127 return Luan.checkFunction(f); |
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128 } |
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129 } |