Mercurial Hosting > luan
annotate core/src/luan/LuanTable.java @ 618:5e495e4e560b
add lucene indexed_only_fields
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Fri, 01 Jan 2016 01:24:10 -0700 |
parents | 60c549d43988 |
children | cdc70de628b5 |
rev | line source |
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1
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start Luan
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1 package luan; |
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2 |
27
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3 import java.util.Iterator; |
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4 import java.util.ListIterator; |
1
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5 import java.util.Map; |
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6 import java.util.AbstractMap; |
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7 import java.util.LinkedHashMap; |
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8 import java.util.List; |
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9 import java.util.ArrayList; |
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10 import java.util.Collections; |
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11 import java.util.Comparator; |
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12 import java.util.Set; |
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13 import java.util.HashSet; |
1
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14 |
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15 |
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16 public final class LuanTable implements DeepCloneable { |
434 | 17 private Map map = null; |
18 private List list = null; | |
48
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19 private LuanTable metatable = null; |
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20 public boolean hasJava = false; |
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21 |
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22 public LuanTable() {} |
364 | 23 |
434 | 24 public LuanTable(List list) { |
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25 int n = list.size(); |
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26 for( int i=0; i<n; i++ ) { |
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27 Object val = list.get(i); |
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28 if( val != null ) |
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29 rawPut(i+1,val); |
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30 } |
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31 } |
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32 |
434 | 33 public LuanTable(Map map) { |
34 for( Object stupid : map.entrySet() ) { | |
35 Map.Entry entry = (Map.Entry)stupid; | |
432
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36 Object key = entry.getKey(); |
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37 Object value = entry.getValue(); |
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38 if( key != null && value != null ) |
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39 rawPut(key,value); |
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40 } |
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41 } |
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42 |
434 | 43 public LuanTable(Set set) { |
432
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44 for( Object el : set ) { |
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45 if( el != null ) |
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46 rawPut(el,Boolean.TRUE); |
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47 } |
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48 } |
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49 |
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50 public LuanTable(LuanTable tbl) { |
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51 if( tbl.map != null && !tbl.map.isEmpty() ) |
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52 this.map = new LinkedHashMap<Object,Object>(tbl.map); |
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53 if( tbl.rawLength() > 0 ) |
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54 this.list = new ArrayList<Object>(tbl.list); |
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55 this.metatable = tbl.metatable; |
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56 } |
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57 |
408
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58 @Override public LuanTable shallowClone() { |
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59 return new LuanTable(); |
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60 } |
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61 |
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62 @Override public void deepenClone(DeepCloneable dc,DeepCloner cloner) { |
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63 LuanTable clone = (LuanTable)dc; |
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64 if( map != null ) { |
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65 clone.map = newMap(); |
434 | 66 for( Object stupid : map.entrySet() ) { |
67 Map.Entry entry = (Map.Entry)stupid; | |
77
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68 clone.map.put( cloner.get(entry.getKey()), cloner.get(entry.getValue()) ); |
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69 } |
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70 } |
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71 if( list != null ) { |
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72 clone.list = new ArrayList<Object>(); |
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73 for( Object obj : list ) { |
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74 clone.list.add( cloner.get(obj) ); |
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75 } |
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76 } |
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77 if( metatable != null ) |
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78 clone.metatable = (LuanTable)cloner.get(metatable); |
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79 clone.hasJava = hasJava; |
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80 } |
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81 |
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82 public boolean isList() { |
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83 return map==null || map.isEmpty(); |
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84 } |
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85 |
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86 public List<Object> asList() { |
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87 return list!=null ? list : Collections.emptyList(); |
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88 } |
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89 |
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90 public String toString(LuanState luan) throws LuanException { |
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91 Object h = getHandler("__to_string"); |
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92 if( h == null ) |
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93 return rawToString(); |
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94 if( h instanceof LuanMeta ) { |
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95 LuanMeta meta = (LuanMeta)h; |
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96 return meta.__to_string(luan,this); |
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97 } |
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98 LuanFunction fn = luan.checkFunction(h); |
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99 return luan.checkString( Luan.first( fn.call(luan,new Object[]{this}) ) ); |
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100 } |
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101 |
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102 public String rawToString() { |
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103 return "table: " + Integer.toHexString(hashCode()); |
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104 } |
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105 |
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106 public Object get(LuanState luan,Object key) throws LuanException { |
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107 Object value = rawGet(key); |
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108 if( value != null ) |
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109 return value; |
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110 Object h = getHandler("__index"); |
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111 if( h==null ) |
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112 return null; |
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113 if( h instanceof LuanFunction ) { |
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114 LuanFunction fn = (LuanFunction)h; |
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115 return Luan.first(fn.call(luan,new Object[]{this,key})); |
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116 } |
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117 if( h instanceof LuanMeta ) { |
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118 LuanMeta meta = (LuanMeta)h; |
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119 return meta.__index(luan,this,key); |
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120 } |
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121 return luan.index(h,key); |
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122 } |
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123 |
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124 public Object rawGet(Object key) { |
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125 if( list != null ) { |
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126 Integer iT = Luan.asInteger(key); |
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127 if( iT != null ) { |
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128 int i = iT - 1; |
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129 if( i>=0 && i<list.size() ) |
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130 return list.get(i); |
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131 } |
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132 } |
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133 if( map==null ) |
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134 return null; |
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135 if( key instanceof Number && !(key instanceof Double) ) { |
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136 Number n = (Number)key; |
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137 key = Double.valueOf(n.doubleValue()); |
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138 } |
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139 return map.get(key); |
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140 } |
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141 |
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142 public void put(LuanState luan,Object key,Object value) throws LuanException { |
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143 Object h = getHandler("__new_index"); |
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144 if( h==null || rawGet(key)!=null ) { |
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145 rawPut(key,value); |
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146 return; |
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147 } |
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148 if( h instanceof LuanFunction ) { |
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149 LuanFunction fn = (LuanFunction)h; |
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150 fn.call(luan,new Object[]{this,key,value}); |
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151 return; |
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152 } |
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153 if( h instanceof LuanMeta ) { |
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154 LuanMeta meta = (LuanMeta)h; |
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155 meta.__new_index(luan,this,key,value); |
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156 return; |
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157 } |
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158 if( h instanceof LuanTable ) { |
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159 LuanTable tbl = (LuanTable)h; |
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160 tbl.put(luan,key,value); |
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161 return; |
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162 } |
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163 throw new LuanException(luan,"invalid type "+Luan.type(h)+" for metamethod __new_index"); |
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164 } |
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165 |
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166 public void rawPut(Object key,Object val) { |
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167 Integer iT = Luan.asInteger(key); |
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168 if( iT != null ) { |
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169 int i = iT - 1; |
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170 if( list != null || i == 0 ) { |
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171 if( i == list().size() ) { |
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172 if( val != null ) { |
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173 list.add(val); |
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174 mapToList(); |
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175 } |
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176 return; |
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177 } else if( i>=0 && i<list.size() ) { |
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178 list.set(i,val); |
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179 if( val == null ) { |
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180 listToMap(i); |
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181 } |
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182 return; |
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183 } |
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184 } |
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185 } |
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186 if( map==null ) |
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187 map = newMap(); |
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188 if( key instanceof Number && !(key instanceof Double) ) { |
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189 Number n = (Number)key; |
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190 key = Double.valueOf(n.doubleValue()); |
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191 } |
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192 if( val == null ) { |
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193 map.remove(key); |
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194 } else { |
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195 map.put(key,val); |
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196 } |
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197 } |
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198 |
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199 private void mapToList() { |
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200 if( map != null ) { |
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201 while(true) { |
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202 Object v = map.remove(Double.valueOf(list.size()+1)); |
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203 if( v == null ) |
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204 break; |
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205 list.add(v); |
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206 } |
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207 } |
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208 } |
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209 |
118
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210 private void listToMap(int from) { |
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211 if( list != null ) { |
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212 while( list.size() > from ) { |
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213 int i = list.size() - 1; |
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214 Object v = list.remove(i); |
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215 if( v != null ) { |
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216 if( map==null ) |
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217 map = newMap(); |
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218 map.put(i+1,v); |
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219 } |
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220 } |
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221 } |
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222 } |
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223 |
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224 private List<Object> list() { |
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225 if( list == null ) { |
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226 list = new ArrayList<Object>(); |
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227 mapToList(); |
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228 } |
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229 return list; |
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230 } |
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231 |
431 | 232 public void rawInsert(int pos,Object value) { |
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233 if( value==null ) |
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234 throw new IllegalArgumentException("can't insert a nil value"); |
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235 list().add(pos-1,value); |
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236 mapToList(); |
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237 } |
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238 |
431 | 239 public Object rawRemove(int pos) { |
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240 return list().remove(pos-1); |
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241 } |
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242 |
431 | 243 public void rawSort(Comparator<Object> cmp) { |
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244 Collections.sort(list(),cmp); |
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245 } |
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246 |
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247 public int length(LuanState luan) throws LuanException { |
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248 Object h = getHandler("__len"); |
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249 if( h != null ) { |
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250 LuanFunction fn = luan.checkFunction(h); |
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251 return (Integer)Luan.first(fn.call(luan,new Object[]{this})); |
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252 } |
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253 return rawLength(); |
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254 } |
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255 |
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256 public int rawLength() { |
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257 return list==null ? 0 : list.size(); |
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258 } |
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259 |
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260 public Iterable<Map.Entry<Object,Object>> iterable(LuanState luan) throws LuanException { |
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261 final Iterator<Map.Entry<Object,Object>> iter = iterator(luan); |
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262 return new Iterable<Map.Entry<Object,Object>>() { |
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263 public Iterator<Map.Entry<Object,Object>> iterator() { |
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264 return iter; |
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265 } |
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266 }; |
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267 } |
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268 |
498
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269 public Iterable<Map.Entry<Object,Object>> rawIterable() throws LuanException { |
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270 final Iterator<Map.Entry<Object,Object>> iter = rawIterator(); |
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271 return new Iterable<Map.Entry<Object,Object>>() { |
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272 public Iterator<Map.Entry<Object,Object>> iterator() { |
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273 return iter; |
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274 } |
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275 }; |
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276 } |
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277 |
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278 public Iterator<Map.Entry<Object,Object>> iterator(final LuanState luan) throws LuanException { |
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279 if( getHandler("__pairs") == null ) |
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280 return rawIterator(); |
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281 final LuanFunction fn = pairs(luan); |
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282 return new Iterator<Map.Entry<Object,Object>>() { |
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283 private Map.Entry<Object,Object> next = getNext(); |
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284 |
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285 private Map.Entry<Object,Object> getNext() { |
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286 try { |
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287 Object obj = fn.call(luan); |
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288 if( obj==null ) |
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289 return null; |
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290 Object[] a = (Object[])obj; |
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291 if( a.length == 0 || a[0]==null ) |
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292 return null; |
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293 return new AbstractMap.SimpleEntry<Object,Object>(a[0],a[1]); |
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294 } catch(LuanException e) { |
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295 throw new LuanRuntimeException(e); |
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296 } |
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297 } |
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298 |
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299 public boolean hasNext() { |
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300 return next != null; |
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301 } |
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302 |
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303 public Map.Entry<Object,Object> next() { |
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304 Map.Entry<Object,Object> rtn = next; |
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305 next = getNext(); |
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306 return rtn; |
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307 } |
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308 |
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309 public void remove() { |
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310 throw new UnsupportedOperationException(); |
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311 } |
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312 }; |
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313 } |
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314 |
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315 public LuanFunction pairs(LuanState luan) throws LuanException { |
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316 Object h = getHandler("__pairs"); |
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317 if( h != null ) { |
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318 if( h instanceof LuanFunction ) { |
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319 LuanFunction fn = (LuanFunction)h; |
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320 Object obj = Luan.first(fn.call(luan,new Object[]{this})); |
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321 if( !(obj instanceof LuanFunction) ) |
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322 throw new LuanException(luan, "metamethod __pairs should return function but returned " + Luan.type(obj) ); |
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323 return (LuanFunction)obj; |
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324 } |
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325 if( h instanceof LuanMeta ) { |
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326 LuanMeta meta = (LuanMeta)h; |
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327 return meta.__pairs(luan,this); |
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328 } |
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329 throw new LuanException(luan, "invalid type of metamethod __pairs: " + Luan.type(h) ); |
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330 } |
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331 return rawPairs(); |
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332 } |
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333 |
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334 private LuanFunction rawPairs() { |
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335 return new LuanFunction() { |
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336 final Iterator<Map.Entry<Object,Object>> iter = rawIterator(); |
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337 |
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338 @Override public Object[] call(LuanState luan,Object[] args) { |
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339 if( !iter.hasNext() ) |
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340 return LuanFunction.NOTHING; |
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341 Map.Entry<Object,Object> entry = iter.next(); |
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342 return new Object[]{entry.getKey(),entry.getValue()}; |
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343 } |
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344 }; |
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345 } |
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346 |
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347 public Iterator<Map.Entry<Object,Object>> rawIterator() { |
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348 if( list == null ) { |
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349 if( map == null ) |
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350 return Collections.<Map.Entry<Object,Object>>emptyList().iterator(); |
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351 return map.entrySet().iterator(); |
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352 } |
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353 if( map == null ) |
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354 return listIterator(); |
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355 return new Iterator<Map.Entry<Object,Object>>() { |
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356 Iterator<Map.Entry<Object,Object>> iter = listIterator(); |
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357 boolean isList = true; |
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358 |
44
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359 public boolean hasNext() { |
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360 boolean b = iter.hasNext(); |
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361 if( !b && isList ) { |
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362 iter = map.entrySet().iterator(); |
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363 isList = false; |
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364 b = iter.hasNext(); |
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365 } |
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366 return b; |
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367 } |
432
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368 |
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369 public Map.Entry<Object,Object> next() { |
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370 return iter.next(); |
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371 } |
432
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372 |
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373 public void remove() { |
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374 throw new UnsupportedOperationException(); |
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375 } |
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376 }; |
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377 } |
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378 |
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379 private Iterator<Map.Entry<Object,Object>> listIterator() { |
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380 if( list == null ) |
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381 return Collections.<Map.Entry<Object,Object>>emptyList().iterator(); |
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382 final ListIterator iter = list.listIterator(); |
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383 return new Iterator<Map.Entry<Object,Object>>() { |
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384 |
44
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385 public boolean hasNext() { |
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386 return iter.hasNext(); |
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387 } |
432
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388 |
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389 public Map.Entry<Object,Object> next() { |
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390 Integer key = iter.nextIndex()+1; |
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391 return new AbstractMap.SimpleEntry<Object,Object>(key,iter.next()); |
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392 } |
432
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393 |
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394 public void remove() { |
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395 throw new UnsupportedOperationException(); |
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396 } |
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397 }; |
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398 } |
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399 |
431 | 400 public LuanTable rawSubList(int from,int to) { |
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401 LuanTable tbl = shallowClone(); |
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402 tbl.list = new ArrayList<Object>(list().subList(from-1,to-1)); |
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403 return tbl; |
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404 } |
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405 |
408
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406 public LuanTable getMetatable() { |
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407 return metatable; |
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408 } |
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409 |
408
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410 public void setMetatable(LuanTable metatable) { |
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411 this.metatable = metatable; |
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412 } |
300
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413 |
419
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414 public Object getHandler(String op) { |
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415 return metatable==null ? null : metatable.rawGet(op); |
419
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416 } |
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417 |
431 | 418 private Map<Object,Object> newMap() { |
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419 return new LinkedHashMap<Object,Object>(); |
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420 } |
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421 |
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422 public boolean isSet(LuanState luan) throws LuanException { |
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423 for( Map.Entry<Object,Object> entry : iterable(luan) ) { |
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424 if( !entry.getValue().equals(Boolean.TRUE) ) |
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425 return false; |
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426 } |
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427 return true; |
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428 } |
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429 |
575
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430 public Set<Object> asSet(LuanState luan) throws LuanException { |
406
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431 Set<Object> set = new HashSet<Object>(); |
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432 for( Map.Entry<Object,Object> entry : iterable(luan) ) { |
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433 set.add(entry.getKey()); |
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434 } |
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435 return set; |
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436 } |
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437 |
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438 public Map<Object,Object> asMap(LuanState luan) throws LuanException { |
406
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439 Map<Object,Object> map = newMap(); |
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440 for( Map.Entry<Object,Object> entry : iterable(luan) ) { |
406
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441 map.put(entry.getKey(),entry.getValue()); |
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442 } |
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443 return map; |
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444 } |
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445 |
497
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446 public void rawClear() { |
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447 map = null; |
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448 list = null; |
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449 } |
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450 |
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