Mercurial Hosting > luan
annotate src/luan/LuanState.java @ 126:0149bdf98fd8
add ThreadLib
git-svn-id: https://luan-java.googlecode.com/svn/trunk@127 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Fri, 06 Jun 2014 14:16:38 +0000 |
parents | f537ff5e511d |
children | f0a4abe58593 |
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48
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1 package luan; |
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2 |
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3 import java.io.InputStream; |
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4 import java.io.PrintStream; |
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5 import java.util.List; |
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6 import java.util.ArrayList; |
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7 import java.util.Map; |
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8 import java.util.LinkedHashMap; |
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9 import luan.interp.LuanCompiler; |
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10 import luan.lib.BasicLib; |
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11 import luan.lib.PackageLib; |
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12 import luan.lib.JavaLib; |
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13 import luan.lib.MathLib; |
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14 import luan.lib.StringLib; |
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15 import luan.lib.TableLib; |
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16 import luan.lib.HtmlLib; |
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17 import luan.lib.BinaryLib; |
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18 import luan.lib.IoLib; |
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19 import luan.lib.ThreadLib; |
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20 |
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21 |
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22 public abstract class LuanState implements DeepCloneable<LuanState> { |
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23 public final LuanBit JAVA = bit(LuanElement.JAVA); |
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24 |
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25 private LuanTable global; |
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26 private LuanTable loaded; |
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27 private LuanTable preload; |
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28 private LuanTable searchers; |
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29 |
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30 private final List<MetatableGetter> mtGetters; |
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31 final List<StackTraceElement> stackTrace = new ArrayList<StackTraceElement>(); |
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32 |
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33 protected LuanState() { |
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34 global = new LuanTable(); |
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35 global.put("_G",global); |
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36 loaded = new LuanTable(); |
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37 preload = new LuanTable(); |
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38 searchers = new LuanTable(); |
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39 mtGetters = new ArrayList<MetatableGetter>(); |
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40 } |
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41 |
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42 protected LuanState(LuanState luan) { |
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43 mtGetters = new ArrayList<MetatableGetter>(luan.mtGetters); |
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44 } |
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45 |
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46 @Override public void deepenClone(LuanState clone,DeepCloner cloner) { |
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47 clone.global = cloner.deepClone(global); |
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48 clone.loaded = cloner.deepClone(loaded); |
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49 clone.preload = cloner.deepClone(preload); |
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50 clone.searchers = cloner.deepClone(searchers); |
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51 } |
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52 |
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53 public abstract LuanTable currentEnvironment(); |
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54 |
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55 public final LuanTable global() { |
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56 return global; |
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57 } |
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58 |
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59 public final LuanTable loaded() { |
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60 return loaded; |
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61 } |
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62 |
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63 public final LuanTable preload() { |
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64 return preload; |
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65 } |
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66 |
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67 public final LuanTable searchers() { |
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68 return searchers; |
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69 } |
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70 |
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71 public final Object get(String name) { |
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72 String[] a = name.split("\\."); |
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73 LuanTable t = loaded; |
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74 for( int i=0; i<a.length-1; i++ ) { |
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75 Object obj = t.get(a[i]); |
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76 if( !(obj instanceof LuanTable) ) |
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77 return null; |
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78 t = (LuanTable)obj; |
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79 } |
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80 return t.get(a[a.length-1]); |
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81 } |
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82 |
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83 public final Object set(String name,Object value) { |
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84 String[] a = name.split("\\."); |
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85 LuanTable t = loaded; |
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86 for( int i=0; i<a.length-1; i++ ) { |
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87 Object obj = t.get(a[i]); |
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88 if( !(obj instanceof LuanTable) ) |
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89 return null; |
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90 t = (LuanTable)obj; |
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91 } |
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92 return t.put(a[a.length-1],value); |
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93 } |
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94 |
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95 public final void load(String modName,LuanFunction loader) throws LuanException { |
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96 preload.put(modName,loader); |
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97 Object mod = PackageLib.require(this,modName); |
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98 if( mod==null ) |
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99 throw new RuntimeException(); |
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100 global.put(modName,mod); |
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101 } |
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102 |
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103 public static LuanState newStandard() { |
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104 try { |
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105 LuanState luan = LuanCompiler.newLuanState(); |
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106 BasicLib.load(luan); |
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107 PackageLib.load(luan); |
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108 MathLib.load(luan); |
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109 StringLib.load(luan); |
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110 TableLib.load(luan); |
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111 HtmlLib.load(luan); |
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112 BinaryLib.load(luan); |
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113 IoLib.load(luan); |
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114 ThreadLib.load(luan); |
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115 BasicLib.do_java_resource(luan,"luan/lib/init.luan"); |
124
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116 JavaLib.load(luan); |
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117 return luan; |
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118 } catch(LuanException e) { |
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119 throw new RuntimeException(e); |
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120 } |
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121 } |
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122 |
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123 public final Object eval(String cmd,String sourceName,boolean interactive) throws LuanException { |
108
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124 LuanFunction fn = BasicLib.load(this,cmd,sourceName,interactive); |
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125 return JAVA.call(fn,null); |
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126 } |
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127 |
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128 |
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129 public final LuanTable getMetatable(Object obj) { |
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130 if( obj instanceof LuanTable ) { |
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131 LuanTable table = (LuanTable)obj; |
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132 return table.getMetatable(); |
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133 } |
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134 for( MetatableGetter mg : mtGetters ) { |
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135 LuanTable table = mg.getMetatable(obj); |
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136 if( table != null ) |
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137 return table; |
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138 } |
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139 return null; |
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140 } |
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141 |
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142 public final void addMetatableGetter(MetatableGetter mg) { |
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143 mtGetters.add(mg); |
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144 } |
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145 |
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146 public final LuanBit bit(LuanElement el) { |
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147 return new LuanBit(this,el); |
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148 } |
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149 |
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150 public final Object getHandler(String op,Object obj) { |
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151 LuanTable t = getMetatable(obj); |
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152 return t==null ? null : t.get(op); |
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153 } |
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154 |
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155 } |