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comparison base/src/java/lang/wrappers.d @ 27:1bf55a6eb092

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Renamed java tree to base
author Frank Benoit <benoit@tionex.de>
date Sat, 21 Mar 2009 11:33:57 +0100
parents java/src/java/lang/wrappers.d@aaa0a4e20edf
children 2e09b0e6857a
comparison
equal deleted inserted replaced
26:f589fc20a5f9 27:1bf55a6eb092
1 module java.lang.wrappers;
2
3 import java.lang.String;
4
5 abstract class ArrayWrapper{
6 }
7 abstract class ValueWrapper{
8 }
9
10 class ArrayWrapperT(T) : ArrayWrapper {
11 public T[] array;
12 public this( T[] data ){
13 array = data;
14 }
15 public override equals_t opEquals( Object o ){
16 if( auto other = cast(ArrayWrapperT!(T))o){
17 return array == other.array;
18 }
19 return false;
20 }
21 public override hash_t toHash(){
22 return (typeid(T[])).getHash(&array);
23 }
24 static if( is( T == char )){
25 public override String toString(){
26 return cast(String)array;
27 }
28 }
29 }
30
31 class ValueWrapperT(T) : ValueWrapper {
32 public T value;
33 public this( T data ){
34 value = data;
35 }
36 static if( is(T==class) || is(T==interface)){
37 public equals_t opEquals( Object other ){
38 if( auto o = cast(ValueWrapperT!(T))other ){
39 return value == o.value;
40 }
41 if( auto o = cast(T)other ){
42 if( value is o ){
43 return true;
44 }
45 if( value is null || o is null ){
46 return false;
47 }
48 return value == o;
49 }
50 return false;
51 }
52 }
53 else{
54 public equals_t opEquals( Object other ){
55 if( auto o = cast(ValueWrapperT!(T))other ){
56 return value == o.value;
57 }
58 return false;
59 }
60 public equals_t opEquals( T other ){
61 return value == other;
62 }
63 }
64 public override hash_t toHash(){
65 return (typeid(T)).getHash(&value);
66 }
67 }
68
69 alias ArrayWrapperT!(byte) ArrayWrapperByte;
70 alias ArrayWrapperT!(int) ArrayWrapperInt;
71 alias ArrayWrapperT!(Object) ArrayWrapperObject;
72 alias ArrayWrapperT!(char) ArrayWrapperString;
73 alias ArrayWrapperT!(String) ArrayWrapperString2;
74
75 Object[] StringArrayToObjectArray( String[] strs ){
76 Object[] res = new Object[strs.length];
77 foreach( idx, str; strs ){
78 res[idx] = new ArrayWrapperString(cast(char[])str);
79 }
80 return res;
81 }
82
83 String stringcast( Object o ){
84 if( auto str = cast(ArrayWrapperString) o ){
85 return cast(String)str.array;
86 }
87 return null;
88 }
89 String[] stringcast( Object[] objs ){
90 String[] res = new String[](objs.length);
91 foreach( idx, obj; objs ){
92 res[idx] = stringcast(obj);
93 }
94 return res;
95 }
96 ArrayWrapperString stringcast( String str ){
97 return new ArrayWrapperString( cast(char[])str );
98 }
99 ArrayWrapperString[] stringcast( String[] strs ){
100 ArrayWrapperString[] res = new ArrayWrapperString[ strs.length ];
101 foreach( idx, str; strs ){
102 res[idx] = stringcast(str);
103 }
104 return res;
105 }
106
107 String[] stringArrayFromObject( Object obj ){
108 if( auto wrapper = cast(ArrayWrapperString2)obj ){
109 return wrapper.array;
110 }
111 if( auto wrapper = cast(ArrayWrapperObject)obj ){
112 String[] res = new String[ wrapper.array.length ];
113 foreach( idx, o; wrapper.array ){
114 if( auto swrapper = cast(ArrayWrapperString) o ){
115 res[idx] = cast(String)swrapper.array;
116 }
117 }
118 return res;
119 }
120 assert( obj is null ); // if not null, it was the wrong type
121 return null;
122 }
123
124 T[] arrayFromObject(T)( Object obj ){
125 if( auto wrapper = cast(ArrayWrapperObject)obj ){
126 T[] res = new T[ wrapper.array.length ];
127 foreach( idx, o; wrapper.array ){
128 res[idx] = cast(T)o;
129 }
130 return res;
131 }
132 assert( obj is null ); // if not null, it was the wrong type
133 return null;
134 }
135