Mercurial Hosting > luan
annotate core/src/luan/LuanTableImpl.java @ 397:5e0acdeaea93
add LuanTable isSet() and asSet() (untested)
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Mon, 27 Apr 2015 12:25:30 -0600 |
parents | 1a464e090538 |
children | 9321a33b9b1c |
rev | line source |
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1
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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; |
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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.List; |
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8 import java.util.ArrayList; |
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9 import java.util.Collections; |
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10 import java.util.Comparator; |
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11 import java.util.Set; |
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12 import java.util.HashSet; |
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13 import java.util.IdentityHashMap; |
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14 import java.util.regex.Pattern; |
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15 |
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16 |
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17 class LuanTableImpl extends AbstractLuanTable implements LuanTable, DeepCloneable<LuanTableImpl> { |
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18 private Map<Object,Object> map = null; |
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19 private List<Object> list = null; |
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20 private LuanTable metatable = null; |
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21 private boolean hasJava = false; |
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22 |
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23 public LuanTableImpl() {} |
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25 LuanTableImpl(List<Object> list) { |
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26 this.list = list; |
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27 this.map = newMap(); |
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28 map.put("n",list.size()); |
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29 for( int i=0; i<list.size(); i++ ) { |
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30 if( list.get(i) == null ) { |
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31 listToMap(i); |
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32 break; |
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33 } |
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34 } |
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35 } |
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36 |
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37 LuanTableImpl(Map<Object,Object> map) { |
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38 map.remove(null); |
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39 for( Iterator<Object> i=map.values().iterator(); i.hasNext(); ) { |
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40 if( i.next() == null ) |
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41 i.remove(); |
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42 } |
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43 this.map = map; |
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44 } |
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45 |
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46 LuanTableImpl(Set<Object> set) { |
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47 map = newMap(); |
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48 for( Object obj : set ) { |
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49 if( obj != null ) |
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50 map.put(obj,Boolean.TRUE); |
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51 } |
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52 } |
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53 |
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54 @Override public LuanTableImpl shallowClone() { |
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55 return new LuanTableImpl(); |
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56 } |
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57 |
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58 @Override public void deepenClone(LuanTableImpl clone,DeepCloner cloner) { |
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59 if( map != null ) { |
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60 clone.map = newMap(); |
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61 for( Map.Entry<Object,Object> entry : map.entrySet() ) { |
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62 clone.map.put( cloner.get(entry.getKey()), cloner.get(entry.getValue()) ); |
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63 } |
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64 } |
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65 if( list != null ) { |
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66 clone.list = new ArrayList<Object>(); |
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67 for( Object obj : list ) { |
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68 clone.list.add( cloner.get(obj) ); |
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69 } |
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70 } |
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71 if( metatable != null ) |
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72 clone.metatable = cloner.get(metatable); |
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73 clone.hasJava = hasJava; |
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74 } |
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75 |
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76 @Override public boolean isList() { |
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77 return map==null || map.isEmpty(); |
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78 } |
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79 |
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80 @Override public List<Object> asList() { |
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81 return list!=null ? list : Collections.emptyList(); |
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82 } |
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83 |
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84 @Override protected Map<Object,Object> map() { |
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85 return map!=null ? map : Collections.emptyMap(); |
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86 } |
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87 /* |
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88 @Override public boolean isSet() { |
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89 if( list != null ) { |
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90 for( Object obj : list ) { |
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91 if( obj!=null && !obj.equals(Boolean.TRUE) ) |
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92 return false; |
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93 } |
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94 } |
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95 if( map != null ) { |
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96 for( Object obj : map.values() ) { |
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97 if( !obj.equals(Boolean.TRUE) ) |
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98 return false; |
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99 } |
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100 } |
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101 return true; |
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102 } |
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103 |
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104 @Override public Set<Object> asSet() { |
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105 if( list == null || list.isEmpty() ) |
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106 return map!=null ? map.keySet() : Collections.emptySet(); |
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107 Set<Object> rtn = map!=null ? new HashSet<Object>(map.keySet()) : new HashSet<Object>(); |
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108 for( int i=1; i<=list.size(); i++ ) { |
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109 rtn.add(i); |
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110 } |
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111 return rtn; |
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112 } |
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113 */ |
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114 @Override protected String type() { |
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115 return "table"; |
81
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116 } |
84
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117 |
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118 @Override public Object get(Object key) { |
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119 if( list != null ) { |
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120 Integer iT = Luan.asInteger(key); |
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121 if( iT != null ) { |
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122 int i = iT - 1; |
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123 if( i>=0 && i<list.size() ) |
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124 return list.get(i); |
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125 } |
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126 } |
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127 if( map==null ) |
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128 return null; |
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129 return map.get(key); |
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130 } |
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131 |
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132 @Override public void put(Object key,Object val) { |
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133 Integer iT = Luan.asInteger(key); |
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134 if( iT != null ) { |
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135 int i = iT - 1; |
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136 if( list != null || i == 0 ) { |
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137 if( i == list().size() ) { |
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138 if( val != null ) { |
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139 list.add(val); |
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140 mapToList(); |
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141 } |
224
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142 return; |
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143 } else if( i>=0 && i<list.size() ) { |
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144 list.set(i,val); |
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145 if( val == null ) { |
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146 listToMap(i); |
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147 } |
224
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148 return; |
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149 } |
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150 } |
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151 } |
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152 if( map==null ) { |
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153 map = newMap(); |
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154 } |
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155 if( key instanceof Number && !(key instanceof Double) ) { |
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156 Number n = (Number)key; |
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157 key = Double.valueOf(n.doubleValue()); |
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158 } |
1
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159 if( val == null ) { |
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160 map.remove(key); |
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161 } else { |
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162 map.put(key,val); |
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163 } |
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164 } |
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165 |
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166 private void mapToList() { |
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167 if( map != null ) { |
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168 while(true) { |
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169 Object v = map.remove(Double.valueOf(list.size()+1)); |
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170 if( v == null ) |
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171 break; |
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172 list.add(v); |
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173 } |
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174 } |
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175 } |
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176 |
118
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177 private void listToMap(int from) { |
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178 if( list != null ) { |
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179 while( list.size() > from ) { |
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180 int i = list.size() - 1; |
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181 Object v = list.remove(i); |
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182 if( v != null ) { |
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183 if( map==null ) |
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184 map = newMap(); |
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185 map.put(i+1,v); |
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186 } |
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187 } |
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188 } |
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189 } |
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190 |
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191 private List<Object> list() { |
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192 if( list == null ) { |
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193 list = new ArrayList<Object>(); |
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194 mapToList(); |
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195 } |
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196 return list; |
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197 } |
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198 |
221
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199 @Override public void insert(int pos,Object value) { |
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200 if( value==null ) |
222
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201 throw new IllegalArgumentException("can't insert a nil value"); |
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202 list().add(pos-1,value); |
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203 mapToList(); |
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204 } |
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205 |
221
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206 @Override public void add(Object value) { |
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207 if( value==null ) |
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208 throw new IllegalArgumentException("can't add a nil value"); |
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209 list().add(value); |
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210 mapToList(); |
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211 } |
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212 |
221
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213 @Override public Object remove(int pos) { |
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214 return list().remove(pos-1); |
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215 } |
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216 |
221
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217 @Override public void sort(Comparator<Object> cmp) { |
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218 Collections.sort(list(),cmp); |
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219 } |
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220 |
221
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221 @Override public int length() { |
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222 return list==null ? 0 : list.size(); |
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223 } |
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224 |
221
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225 @Override public Iterator<Map.Entry<Object,Object>> iterator() { |
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226 if( list == null ) { |
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227 if( map == null ) |
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228 return Collections.<Map.Entry<Object,Object>>emptyList().iterator(); |
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229 return map.entrySet().iterator(); |
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230 } |
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231 if( map == null ) |
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232 return listIterator(); |
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233 return new Iterator<Map.Entry<Object,Object>>() { |
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234 Iterator<Map.Entry<Object,Object>> iter = listIterator(); |
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235 boolean isList = true; |
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236 public boolean hasNext() { |
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237 boolean b = iter.hasNext(); |
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238 if( !b && isList ) { |
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239 iter = map.entrySet().iterator(); |
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240 isList = false; |
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241 b = iter.hasNext(); |
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242 } |
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243 return b; |
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244 } |
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245 public Map.Entry<Object,Object> next() { |
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246 return iter.next(); |
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247 } |
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248 public void remove() { |
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249 throw new UnsupportedOperationException(); |
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250 } |
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251 }; |
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252 } |
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253 |
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254 private Iterator<Map.Entry<Object,Object>> listIterator() { |
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255 if( list == null ) |
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256 return Collections.<Map.Entry<Object,Object>>emptyList().iterator(); |
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257 final ListIterator iter = list.listIterator(); |
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258 return new Iterator<Map.Entry<Object,Object>>() { |
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259 public boolean hasNext() { |
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260 return iter.hasNext(); |
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261 } |
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262 public Map.Entry<Object,Object> next() { |
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263 Double key = Double.valueOf(iter.nextIndex()+1); |
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264 return new AbstractMap.SimpleEntry<Object,Object>(key,iter.next()); |
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265 } |
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266 public void remove() { |
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267 throw new UnsupportedOperationException(); |
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268 } |
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269 }; |
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270 } |
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271 |
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272 @Override public LuanTable subList(int from,int to) { |
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273 LuanTableImpl tbl = shallowClone(); |
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274 tbl.list = new ArrayList<Object>(list().subList(from-1,to-1)); |
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275 return tbl; |
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276 } |
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277 |
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278 @Override public LuanTable getMetatable() { |
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279 return metatable; |
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280 } |
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281 |
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282 @Override public void setMetatable(LuanTable metatable) { |
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283 this.metatable = metatable; |
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284 } |
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285 |
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286 @Override public boolean hasJava() { |
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287 return hasJava; |
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288 } |
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289 |
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290 @Override public void setJava() { |
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291 hasJava = true; |
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292 } |
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293 } |