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annotate druntime/src/compiler/ldc/typeinfo/ti_AC.d @ 759:d3eb054172f9

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Added copy of druntime from DMD 2.020 modified for LDC.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Tue, 11 Nov 2008 01:52:37 +0100
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d3eb054172f9 Added copy of druntime from DMD 2.020 modified for LDC.
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1 module rt.typeinfo.ti_AC;
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2
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3 // Object[]
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4
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5 class TypeInfo_AC : TypeInfo
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6 {
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7 override hash_t getHash(in void* p)
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8 { Object[] s = *cast(Object[]*)p;
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9 hash_t hash = 0;
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10
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11 foreach (Object o; s)
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12 {
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13 if (o)
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14 hash += o.toHash();
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15 }
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16 return hash;
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17 }
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18
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19 override equals_t equals(in void* p1, in void* p2)
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20 {
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21 Object[] s1 = *cast(Object[]*)p1;
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22 Object[] s2 = *cast(Object[]*)p2;
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23
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24 if (s1.length == s2.length)
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25 {
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26 for (size_t u = 0; u < s1.length; u++)
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27 { Object o1 = s1[u];
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28 Object o2 = s2[u];
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29
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30 // Do not pass null's to Object.opEquals()
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31 if (o1 is o2 ||
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32 (!(o1 is null) && !(o2 is null) && o1.opEquals(o2)))
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33 continue;
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34 return false;
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35 }
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36 return true;
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37 }
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38 return false;
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39 }
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40
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41 override int compare(in void* p1, in void* p2)
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42 {
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43 Object[] s1 = *cast(Object[]*)p1;
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44 Object[] s2 = *cast(Object[]*)p2;
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45 ptrdiff_t c;
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46
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47 c = cast(ptrdiff_t)s1.length - cast(ptrdiff_t)s2.length;
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48 if (c == 0)
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49 {
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50 for (size_t u = 0; u < s1.length; u++)
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51 { Object o1 = s1[u];
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52 Object o2 = s2[u];
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53
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54 if (o1 is o2)
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55 continue;
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56
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57 // Regard null references as always being "less than"
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58 if (o1)
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59 {
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60 if (!o2)
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61 { c = 1;
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62 break;
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63 }
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64 c = o1.opCmp(o2);
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65 if (c)
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66 break;
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67 }
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68 else
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69 { c = -1;
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70 break;
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71 }
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72 }
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73 }
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74 if (c < 0)
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75 c = -1;
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76 else if (c > 0)
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77 c = 1;
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78 return c;
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79 }
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80
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81 override size_t tsize()
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82 {
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83 return (Object[]).sizeof;
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84 }
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85
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86 override uint flags()
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87 {
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88 return 1;
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89 }
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90
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91 override TypeInfo next()
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92 {
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93 return typeid(Object);
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94 }
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95 }