rt.compiler.gdc.typeinfo.ti

1 
2 module rt.compiler.gdc.typeinfo.ti_Aint;
3 
4 private import tango.stdc.string : memcmp;
5 private import rt.compiler.util.hash;
6 
7 // int[]
8 
9 class TypeInfo_Ai : TypeInfo_Array
10 {
11     override char[] toString() { return "int[]"; }
12 
13     override hash_t getHash(in void* p)
14     {   int[] s = *cast(int[]*)p;
15         auto len = s.length;
16         auto str = s.ptr;
17         return rt_hash_str(str,len*int.sizeof,0);
18     }
19 
20     override equals_t equals(in void* p1, in void* p2)
21     {
22         int[] s1 = *cast(int[]*)p1;
23         int[] s2 = *cast(int[]*)p2;
24 
25         return s1.length == s2.length &&
26                memcmp(cast(void *)s1, cast(void *)s2, s1.length * int.sizeof) == 0;
27     }
28 
29     override int compare(in void* p1, in void* p2)
30     {
31         int[] s1 = *cast(int[]*)p1;
32         int[] s2 = *cast(int[]*)p2;
33         size_t len = s1.length;
34 
35         if (s2.length < len)
36             len = s2.length;
37         for (size_t u = 0; u < len; u++)
38         {
39             int result = s1[u] - s2[u];
40             if (result)
41                 return result;
42         }
43         if (s1.length < s2.length)
44             return -1;
45         else if (s1.length > s2.length)
46             return 1;
47         return 0;
48     }
49 
50     override size_t talign()
51     {
52         return (int[]).alignof;
53     }
54 
55     override size_t tsize()
56     {
57         return (int[]).sizeof;
58     }
59 
60     override uint flags()
61     {
62         return 1;
63     }
64 
65     override TypeInfo next()
66     {
67         return typeid(int);
68     }
69 
70     version (X86_64) override int argTypes(out TypeInfo arg1, out TypeInfo arg2)
71     {
72         return 0;
73     }
74 }
75 
76 unittest
77 {
78     int[][] a = [[5,3,8,7], [2,5,3,8,7]];
79     a.sort;
80     assert(a == [[2,5,3,8,7], [5,3,8,7]]);
81 
82     a = [[5,3,8,7], [5,3,8]];
83     a.sort;
84     assert(a == [[5,3,8], [5,3,8,7]]);
85 }
86 
87 // uint[]
88 
89 class TypeInfo_Ak : TypeInfo_Ai
90 {
91     override char[] toString() { return "uint[]"; }
92 
93     override int compare(in void* p1, in void* p2)
94     {
95         uint[] s1 = *cast(uint[]*)p1;
96         uint[] s2 = *cast(uint[]*)p2;
97         size_t len = s1.length;
98 
99         if (s2.length < len)
100             len = s2.length;
101         for (size_t u = 0; u < len; u++)
102         {
103             int result = s1[u] - s2[u];
104             if (result)
105                 return result;
106         }
107         if (s1.length < s2.length)
108             return -1;
109         else if (s1.length > s2.length)
110             return 1;
111         return 0;
112     }
113 
114     override TypeInfo next()
115     {
116         return typeid(uint);
117     }
118 }
119 
120 // dchar[]
121 
122 class TypeInfo_Aw : TypeInfo_Ak
123 {
124     override char[] toString() { return "dchar[]"; }
125 
126     override TypeInfo next()
127     {
128         return typeid(dchar);
129     }
130 }