Mercurial Hosting > luan
annotate core/src/luan/LuanTableImpl.java @ 341:410e59ebad7d
add more Math functions
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Fri, 03 Apr 2015 06:17:11 -0600 |
parents | 9fb523472035 |
children | 1bce334a816b |
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>, LuanRepr { |
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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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24 /* |
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25 public LuanTableImpl(LuanTableImpl tbl) { |
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26 if( tbl.map != null ) |
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27 this.map = newMap(tbl.map); |
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28 if( tbl.list != null ) |
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29 this.list = new ArrayList<Object>(tbl.list); |
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30 } |
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31 */ |
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32 LuanTableImpl(List<Object> list) { |
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33 this.list = list; |
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34 this.map = newMap(); |
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35 map.put("n",list.size()); |
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36 for( int i=0; i<list.size(); i++ ) { |
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37 if( list.get(i) == null ) { |
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38 listToMap(i); |
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39 break; |
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40 } |
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41 } |
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42 } |
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43 |
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44 LuanTableImpl(Map<Object,Object> map) { |
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45 map.remove(null); |
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46 for( Iterator<Object> i=map.values().iterator(); i.hasNext(); ) { |
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47 if( i.next() == null ) |
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48 i.remove(); |
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49 } |
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50 this.map = map; |
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51 } |
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52 |
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53 LuanTableImpl(Set<Object> set) { |
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54 map = newMap(); |
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55 for( Object obj : set ) { |
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56 if( obj != null ) |
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57 map.put(obj,Boolean.TRUE); |
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58 } |
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59 } |
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60 |
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61 @Override public LuanTableImpl shallowClone() { |
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62 return new LuanTableImpl(); |
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63 } |
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64 |
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65 @Override public void deepenClone(LuanTableImpl clone,DeepCloner cloner) { |
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66 if( map != null ) { |
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67 clone.map = newMap(); |
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68 for( Map.Entry<Object,Object> entry : map.entrySet() ) { |
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69 clone.map.put( cloner.get(entry.getKey()), cloner.get(entry.getValue()) ); |
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70 } |
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71 } |
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72 if( list != null ) { |
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73 clone.list = new ArrayList<Object>(); |
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74 for( Object obj : list ) { |
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75 clone.list.add( cloner.get(obj) ); |
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76 } |
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77 } |
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78 if( metatable != null ) |
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79 clone.metatable = cloner.get(metatable); |
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80 clone.hasJava = hasJava; |
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81 } |
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82 |
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83 @Override public boolean isList() { |
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84 return map==null || map.isEmpty(); |
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85 } |
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86 |
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87 @Override public List<Object> asList() { |
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88 return list!=null ? list : Collections.emptyList(); |
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89 } |
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90 |
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91 @Override public Map<Object,Object> asMap() { |
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92 if( list == null || list.isEmpty() ) |
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93 return map!=null ? map : Collections.emptyMap(); |
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94 Map<Object,Object> rtn = map!=null ? newMap(map) : newMap(); |
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95 for( ListIterator iter = list.listIterator(); iter.hasNext(); ) { |
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96 int i = iter.nextIndex(); |
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97 rtn.put(i+1,iter.next()); |
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98 } |
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99 return rtn; |
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100 } |
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101 |
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102 public boolean isSet() { |
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103 if( list != null ) { |
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104 for( Object obj : list ) { |
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105 if( obj!=null && !obj.equals(Boolean.TRUE) ) |
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106 return false; |
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107 } |
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108 } |
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109 if( map != null ) { |
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110 for( Object obj : map.values() ) { |
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111 if( !obj.equals(Boolean.TRUE) ) |
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112 return false; |
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113 } |
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114 } |
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115 return true; |
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116 } |
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117 |
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118 public Set<Object> asSet() { |
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119 if( list == null || list.isEmpty() ) |
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120 return map!=null ? map.keySet() : Collections.emptySet(); |
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121 Set<Object> rtn = map!=null ? new HashSet<Object>(map.keySet()) : new HashSet<Object>(); |
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122 for( int i=1; i<=list.size(); i++ ) { |
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123 rtn.add(i); |
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124 } |
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125 return rtn; |
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126 } |
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127 |
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128 @Override protected String type() { |
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129 return "table"; |
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130 } |
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131 |
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132 @Override public String repr() { |
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133 return repr( Collections.newSetFromMap(new IdentityHashMap<LuanTableImpl,Boolean>()) ); |
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134 } |
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135 |
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136 private String repr(Set<LuanTableImpl> set) { |
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137 if( !set.add(this) ) { |
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138 return "\"<circular reference>\""; |
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139 } |
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140 StringBuilder sb = new StringBuilder(); |
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141 sb.append('{'); |
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142 boolean isFirst = true; |
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143 if( list != null ) { |
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144 for( int i=0; i<list.size(); i++ ) { |
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145 Object obj = list.get(i); |
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146 if( isFirst ) { |
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147 isFirst = false; |
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148 } else { |
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149 sb.append(", "); |
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150 } |
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151 sb.append(repr(set,obj)); |
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152 } |
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153 } |
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154 if( map != null ) { |
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155 for( Map.Entry<Object,Object> entry : map.entrySet() ) { |
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156 if( isFirst ) { |
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157 isFirst = false; |
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158 } else { |
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159 sb.append(", "); |
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160 } |
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161 sb.append(reprKey(set,entry.getKey())).append('=').append(repr(set,entry.getValue())); |
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162 } |
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163 } |
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164 sb.append('}'); |
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165 return sb.toString(); |
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166 } |
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start Luan
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167 |
88
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168 private static final Pattern namePtn = Pattern.compile("[a-zA-Z_][a-zA-Z_0-9]*"); |
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169 |
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170 private String reprKey(Set<LuanTableImpl> set,Object obj) { |
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171 if( obj instanceof String ) { |
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172 String s = (String)obj; |
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173 if( namePtn.matcher(s).matches() ) |
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174 return s; |
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175 } |
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176 return "[" + repr(set,obj) + "]"; |
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177 } |
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178 |
226
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179 String repr(Set<LuanTableImpl> set,Object obj) { |
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180 if( obj instanceof LuanTableImpl ) { |
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181 LuanTableImpl t = (LuanTableImpl)obj; |
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182 return t.repr(set); |
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183 } else { |
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184 String s = Luan.repr(obj); |
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185 if( s == null ) |
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186 s = "<couldn't repr: " + Luan.stringEncode(Luan.toString(obj)) + ">"; |
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187 return s; |
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188 } |
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189 } |
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190 |
221
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191 @Override public Object get(Object key) { |
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192 if( list != null ) { |
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193 Integer iT = Luan.asInteger(key); |
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194 if( iT != null ) { |
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195 int i = iT - 1; |
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196 if( i>=0 && i<list.size() ) |
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197 return list.get(i); |
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198 } |
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199 } |
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200 if( map==null ) |
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201 return null; |
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202 return map.get(key); |
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203 } |
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204 |
224
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205 @Override public void put(Object key,Object val) { |
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206 Integer iT = Luan.asInteger(key); |
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207 if( iT != null ) { |
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208 int i = iT - 1; |
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209 if( list != null || i == 0 ) { |
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210 if( i == list().size() ) { |
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211 if( val != null ) { |
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212 list.add(val); |
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213 mapToList(); |
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214 } |
224
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215 return; |
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216 } else if( i>=0 && i<list.size() ) { |
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217 list.set(i,val); |
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218 if( val == null ) { |
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219 listToMap(i); |
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220 } |
224
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221 return; |
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222 } |
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223 } |
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224 } |
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225 if( map==null ) { |
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226 map = newMap(); |
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227 } |
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228 if( key instanceof Number && !(key instanceof Double) ) { |
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229 Number n = (Number)key; |
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230 key = Double.valueOf(n.doubleValue()); |
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231 } |
1
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232 if( val == null ) { |
224
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233 map.remove(key); |
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234 } else { |
224
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235 map.put(key,val); |
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236 } |
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237 } |
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238 |
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239 private void mapToList() { |
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240 if( map != null ) { |
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241 while(true) { |
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242 Object v = map.remove(Double.valueOf(list.size()+1)); |
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243 if( v == null ) |
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244 break; |
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245 list.add(v); |
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246 } |
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247 } |
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248 } |
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249 |
118
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250 private void listToMap(int from) { |
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251 if( list != null ) { |
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252 while( list.size() > from ) { |
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253 int i = list.size() - 1; |
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254 Object v = list.remove(i); |
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255 if( v != null ) { |
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256 if( map==null ) |
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257 map = newMap(); |
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258 map.put(i+1,v); |
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259 } |
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260 } |
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261 } |
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262 } |
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263 |
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264 private List<Object> list() { |
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265 if( list == null ) { |
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266 list = new ArrayList<Object>(); |
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267 mapToList(); |
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268 } |
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269 return list; |
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270 } |
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271 |
221
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272 @Override public void insert(int pos,Object value) { |
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273 if( value==null ) |
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274 throw new IllegalArgumentException("can't insert a nil value"); |
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275 list().add(pos-1,value); |
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276 mapToList(); |
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277 } |
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278 |
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279 @Override public void add(Object value) { |
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280 if( value==null ) |
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281 throw new IllegalArgumentException("can't add a nil value"); |
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282 list().add(value); |
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283 mapToList(); |
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284 } |
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285 |
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286 @Override public Object remove(int pos) { |
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287 return list().remove(pos-1); |
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288 } |
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289 |
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290 @Override public void sort(Comparator<Object> cmp) { |
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291 Collections.sort(list(),cmp); |
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292 } |
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293 |
221
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294 @Override public int length() { |
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295 return list==null ? 0 : list.size(); |
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296 } |
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297 |
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298 @Override public Iterator<Map.Entry<Object,Object>> iterator() { |
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299 if( list == null ) { |
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300 if( map == null ) |
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301 return Collections.<Map.Entry<Object,Object>>emptyList().iterator(); |
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302 return map.entrySet().iterator(); |
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303 } |
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304 if( map == null ) |
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305 return listIterator(); |
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306 return new Iterator<Map.Entry<Object,Object>>() { |
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307 Iterator<Map.Entry<Object,Object>> iter = listIterator(); |
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308 boolean isList = true; |
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309 public boolean hasNext() { |
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310 boolean b = iter.hasNext(); |
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311 if( !b && isList ) { |
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312 iter = map.entrySet().iterator(); |
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313 isList = false; |
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314 b = iter.hasNext(); |
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315 } |
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316 return b; |
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317 } |
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318 public Map.Entry<Object,Object> next() { |
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319 return iter.next(); |
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320 } |
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321 public void remove() { |
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322 throw new UnsupportedOperationException(); |
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323 } |
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324 }; |
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325 } |
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326 |
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327 private Iterator<Map.Entry<Object,Object>> listIterator() { |
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328 if( list == null ) |
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329 return Collections.<Map.Entry<Object,Object>>emptyList().iterator(); |
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330 final ListIterator iter = list.listIterator(); |
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331 return new Iterator<Map.Entry<Object,Object>>() { |
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332 public boolean hasNext() { |
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333 return iter.hasNext(); |
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334 } |
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335 public Map.Entry<Object,Object> next() { |
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336 Double key = Double.valueOf(iter.nextIndex()+1); |
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337 return new AbstractMap.SimpleEntry<Object,Object>(key,iter.next()); |
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338 } |
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339 public void remove() { |
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340 throw new UnsupportedOperationException(); |
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341 } |
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342 }; |
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343 } |
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344 |
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345 @Override public LuanTable subList(int from,int to) { |
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346 LuanTableImpl tbl = shallowClone(); |
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347 tbl.list = new ArrayList<Object>(list().subList(from-1,to-1)); |
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348 return tbl; |
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349 } |
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350 |
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351 @Override public LuanTable getMetatable() { |
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352 return metatable; |
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353 } |
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354 |
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355 @Override public void setMetatable(LuanTable metatable) { |
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356 this.metatable = metatable; |
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357 } |
300
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358 |
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359 @Override public boolean hasJava() { |
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360 return hasJava; |
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361 } |
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362 |
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363 @Override public void setJava() { |
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364 hasJava = true; |
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365 } |
1
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366 } |