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annotate src/luan/LuaTable.java @ 46:a443637829c1

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remove LuaNumber git-svn-id: https://luan-java.googlecode.com/svn/trunk@47 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 27 Dec 2012 01:48:36 +0000
parents 57054fa43189
children 659c7139e903
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan;
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2
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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.HashMap;
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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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13 public class LuaTable {
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14 private Map<Object,Object> map = null;
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15 private List<Object> list = null;
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16 private LuaTable metatable = null;
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18 public LuaTable() {}
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20 public LuaTable(List<Object> list) {
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21 this.list = list;
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22 }
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24 @Override public String toString() {
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25 return "table: " + Integer.toHexString(hashCode());
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26 }
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28 public Object get(Object key) {
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29 if( list != null ) {
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30 Integer iT = Lua.asInteger(key);
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31 if( iT != null ) {
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32 int i = iT - 1;
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33 if( i>=0 && i<list.size() )
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34 return list.get(i);
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35 }
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36 }
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37 if( map==null )
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38 return null;
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39 return map.get(key);
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40 }
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41
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42 public Object put(Object key,Object val) {
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43 Integer iT = Lua.asInteger(key);
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44 if( iT != null ) {
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45 int i = iT - 1;
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46 if( list == null && i == 0 )
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47 list = new ArrayList<Object>();
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48 if( list != null ) {
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49 if( i == list.size() ) {
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50 if( val != null ) {
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51 list.add(val);
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52 if( map != null ) {
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53 while(true) {
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54 Object v = map.remove(Double.valueOf(list.size()+1));
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55 if( v == null )
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56 break;
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57 list.add(v);
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58 }
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59 }
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60 }
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61 return null;
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62 } else if( i>=0 && i<list.size() ) {
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63 Object old = list.get(i);
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64 list.set(i,val);
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65 if( val == null && i == list.size()-1 ) {
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66 while( i>=0 && list.get(i)==null ) {
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67 list.remove(i--);
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68 }
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69 }
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70 return old;
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71 }
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72 }
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73 }
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74 if( map==null ) {
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75 map = new HashMap<Object,Object>();
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76 }
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77 if( key instanceof Number && !(key instanceof Double) ) {
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78 Number n = (Number)key;
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79 key = Double.valueOf(n.doubleValue());
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80 }
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81 if( val == null ) {
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82 return map.remove(key);
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83 } else {
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84 return map.put(key,val);
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85 }
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86 }
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87
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88 public void insert(int pos,Object value) {
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89 if( list == null )
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90 list = new ArrayList<Object>();
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91 list.add(pos-1,value);
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92 }
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94 public Object remove(int pos) {
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95 if( list == null )
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96 list = new ArrayList<Object>();
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97 return list.remove(pos-1);
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98 }
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99
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100 public void sort(Comparator<Object> cmp) {
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101 if( list != null )
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102 Collections.sort(list,cmp);
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103 }
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104
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105 public int length() {
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106 return list==null ? 0 : list.size();
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107 }
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108
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109 public Iterator<Map.Entry<Object,Object>> iterator() {
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110 if( list == null ) {
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111 if( map == null )
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112 return Collections.<Map.Entry<Object,Object>>emptyList().iterator();
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113 return map.entrySet().iterator();
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114 }
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115 if( map == null )
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116 return listIterator();
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117 return new Iterator<Map.Entry<Object,Object>>() {
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118 Iterator<Map.Entry<Object,Object>> iter = listIterator();
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119 boolean isList = true;
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120 public boolean hasNext() {
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121 boolean b = iter.hasNext();
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122 if( !b && isList ) {
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123 iter = map.entrySet().iterator();
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124 isList = false;
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125 b = iter.hasNext();
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126 }
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127 return b;
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128 }
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129 public Map.Entry<Object,Object> next() {
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130 return iter.next();
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131 }
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132 public void remove() {
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133 throw new UnsupportedOperationException();
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134 }
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135 };
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136 }
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137
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138 public Iterator<Map.Entry<Object,Object>> listIterator() {
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139 if( list == null )
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140 return Collections.<Map.Entry<Object,Object>>emptyList().iterator();
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141 final ListIterator iter = list.listIterator();
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142 return new Iterator<Map.Entry<Object,Object>>() {
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143 public boolean hasNext() {
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144 return iter.hasNext();
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145 }
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146 public Map.Entry<Object,Object> next() {
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a443637829c1 remove LuaNumber
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147 Double key = Double.valueOf(iter.nextIndex()+1);
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148 return new MapEntry(key,iter.next());
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149 }
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150 public void remove() {
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151 throw new UnsupportedOperationException();
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152 }
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153 };
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154 }
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155
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156 public Object[] listToArray() {
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157 return list==null ? new Object[0] : list.toArray();
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158 }
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159
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160 public LuaTable subList(int from,int to) {
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161 if( list == null )
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162 list = new ArrayList<Object>();
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163 return new LuaTable(new ArrayList<Object>(list.subList(from-1,to-1)));
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164 }
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165
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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166 public LuaTable getMetatable() {
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167 return metatable;
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168 }
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169
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170 public void setMetatable(LuaTable metatable) {
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171 this.metatable = metatable;
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172 }
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173
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174 private static final class MapEntry implements Map.Entry<Object,Object> {
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175 private final Object key;
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176 private final Object value;
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177
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178 MapEntry(Object key,Object value) {
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179 this.key = key;
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180 this.value = value;
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181 }
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182
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183 @Override public Object getKey() {
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184 return key;
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185 }
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186
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187 @Override public Object getValue() {
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188 return value;
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189 }
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190
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191 @Override public Object setValue(Object value) {
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192 throw new UnsupportedOperationException();
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193 }
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194 }
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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195 }