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annotate base/src/java/lang/wrappers.d @ 84:fcf926c91ca4

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Added base classes
author Frank Benoit <benoit@tionex.de>
date Sat, 18 Apr 2009 09:25:29 +0200
parents 2e09b0e6857a
children 536e43f63c81
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1 module java.lang.wrappers;
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2
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3 import java.lang.String;
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4
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5 abstract class ArrayWrapper{
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6 }
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7 abstract class ValueWrapper{
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8 }
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9
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10 class ArrayWrapperT(T) : ArrayWrapper {
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11 public T[] array;
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12 public this( T[] data ){
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13 array = data;
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14 }
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15 version(D_Version2){
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16 static if( is(T == char )){
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17 public this( String data ){
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18 array = data.dup;
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19 }
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20 }
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21 }
23
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22 public override equals_t opEquals( Object o ){
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23 if( auto other = cast(ArrayWrapperT!(T))o){
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24 return array == other.array;
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25 }
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26 return false;
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27 }
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28 public override hash_t toHash(){
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29 return (typeid(T[])).getHash(&array);
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30 }
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31 static if( is( T == char )){
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32 public override String toString(){
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33 return cast(String)array;
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34 }
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35 }
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36 }
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37
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38 class ValueWrapperT(T) : ValueWrapper {
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39 public T value;
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40 public this( T data ){
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41 value = data;
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42 }
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43 static if( is(T==class) || is(T==interface)){
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44 public equals_t opEquals( Object other ){
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45 if( auto o = cast(ValueWrapperT!(T))other ){
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46 return value == o.value;
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47 }
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48 if( auto o = cast(T)other ){
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49 if( value is o ){
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50 return true;
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51 }
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52 if( value is null || o is null ){
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53 return false;
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54 }
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55 return value == o;
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56 }
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57 return false;
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58 }
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59 }
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60 else{
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61 public equals_t opEquals( Object other ){
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62 if( auto o = cast(ValueWrapperT!(T))other ){
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63 return value == o.value;
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64 }
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65 return false;
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66 }
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67 public equals_t opEquals( T other ){
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68 return value == other;
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69 }
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70 }
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71 public override hash_t toHash(){
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72 return (typeid(T)).getHash(&value);
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73 }
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74 }
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75
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76 alias ArrayWrapperT!(byte) ArrayWrapperByte;
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77 alias ArrayWrapperT!(int) ArrayWrapperInt;
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78 alias ArrayWrapperT!(Object) ArrayWrapperObject;
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79 alias ArrayWrapperT!(char) ArrayWrapperString;
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80 alias ArrayWrapperT!(String) ArrayWrapperString2;
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81
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82 Object[] StringArrayToObjectArray( String[] strs ){
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83 Object[] res = new Object[strs.length];
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84 foreach( idx, str; strs ){
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85 res[idx] = new ArrayWrapperString(cast(char[])str);
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86 }
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87 return res;
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88 }
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89
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90 String stringcast( Object o ){
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91 if( auto str = cast(ArrayWrapperString) o ){
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92 return cast(String)str.array;
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93 }
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94 return null;
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95 }
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96 String[] stringcast( Object[] objs ){
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97 String[] res = new String[](objs.length);
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98 foreach( idx, obj; objs ){
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99 res[idx] = stringcast(obj);
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100 }
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101 return res;
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102 }
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103 ArrayWrapperString stringcast( String str ){
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104 return new ArrayWrapperString( cast(char[])str );
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105 }
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106 ArrayWrapperString[] stringcast( String[] strs ){
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107 ArrayWrapperString[] res = new ArrayWrapperString[ strs.length ];
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108 foreach( idx, str; strs ){
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109 res[idx] = stringcast(str);
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110 }
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111 return res;
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112 }
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113
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114 String[] stringArrayFromObject( Object obj ){
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115 if( auto wrapper = cast(ArrayWrapperString2)obj ){
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116 return wrapper.array;
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117 }
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118 if( auto wrapper = cast(ArrayWrapperObject)obj ){
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119 String[] res = new String[ wrapper.array.length ];
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120 foreach( idx, o; wrapper.array ){
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121 if( auto swrapper = cast(ArrayWrapperString) o ){
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122 res[idx] = cast(String)swrapper.array;
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123 }
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124 }
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125 return res;
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126 }
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127 assert( obj is null ); // if not null, it was the wrong type
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128 return null;
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129 }
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130
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131 T[] arrayFromObject(T)( Object obj ){
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132 if( auto wrapper = cast(ArrayWrapperObject)obj ){
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133 T[] res = new T[ wrapper.array.length ];
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134 foreach( idx, o; wrapper.array ){
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135 res[idx] = cast(T)o;
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136 }
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137 return res;
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138 }
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139 assert( obj is null ); // if not null, it was the wrong type
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140 return null;
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141 }
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