Mercurial > projects > ldc
view lphobos/typeinfo2/ti_Ag.d @ 1404:11b122f92136
Now that templates instantiations are no longer emitted for all modules that
even blink at them they seem to break due to being linkonce (if compiled with
any optimization level > 0), so let's give them weak linkage instead.
The difference is that unreferenced linkonce symbols can be deleted, while
weak symbols need to be preserved.
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Thu, 21 May 2009 15:23:28 +0200 |
parents | 362825278842 |
children |
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module typeinfo2.ti_Ag; private int string_cmp(char[] s1, char[] s2) { auto len = s1.length; if (s2.length < len) len = s2.length; int result = memcmp(s1.ptr, s2.ptr, len); if (result == 0) result = cast(int)(cast(ptrdiff_t)s1.length - cast(ptrdiff_t)s2.length); return result; } extern(C) int memcmp(void*,void*,size_t); // byte[] class TypeInfo_Ag : TypeInfo { char[] toString() { return "byte[]"; } hash_t getHash(void *p) { byte[] s = *cast(byte[]*)p; size_t len = s.length; byte *str = s.ptr; hash_t hash = 0; while (1) { switch (len) { case 0: return hash; case 1: hash *= 9; hash += *cast(ubyte *)str; return hash; case 2: hash *= 9; hash += *cast(ushort *)str; return hash; case 3: hash *= 9; hash += (*cast(ushort *)str << 8) + (cast(ubyte *)str)[2]; return hash; default: hash *= 9; hash += *cast(uint *)str; str += 4; len -= 4; break; } } return hash; } int equals(void *p1, void *p2) { byte[] s1 = *cast(byte[]*)p1; byte[] s2 = *cast(byte[]*)p2; return s1.length == s2.length && memcmp(cast(byte *)s1, cast(byte *)s2, s1.length) == 0; } int compare(void *p1, void *p2) { byte[] s1 = *cast(byte[]*)p1; byte[] s2 = *cast(byte[]*)p2; size_t len = s1.length; if (s2.length < len) len = s2.length; for (size_t u = 0; u < len; u++) { int result = s1[u] - s2[u]; if (result) return result; } return cast(int)s1.length - cast(int)s2.length; } size_t tsize() { return (byte[]).sizeof; } uint flags() { return 1; } TypeInfo next() { return typeid(byte); } } // ubyte[] class TypeInfo_Ah : TypeInfo_Ag { char[] toString() { return "ubyte[]"; } int compare(void *p1, void *p2) { char[] s1 = *cast(char[]*)p1; char[] s2 = *cast(char[]*)p2; return string_cmp(s1, s2); } TypeInfo next() { return typeid(ubyte); } } // void[] class TypeInfo_Av : TypeInfo_Ah { char[] toString() { return "void[]"; } TypeInfo next() { return typeid(void); } } // bool[] class TypeInfo_Ab : TypeInfo_Ah { char[] toString() { return "bool[]"; } TypeInfo next() { return typeid(bool); } } // char[] class TypeInfo_Aa : TypeInfo_Ag { char[] toString() { return "char[]"; } hash_t getHash(void *p) { char[] s = *cast(char[]*)p; hash_t hash = 0; version (all) { foreach (char c; s) hash = hash * 11 + c; } else { size_t len = s.length; char *str = s; while (1) { switch (len) { case 0: return hash; case 1: hash *= 9; hash += *cast(ubyte *)str; return hash; case 2: hash *= 9; hash += *cast(ushort *)str; return hash; case 3: hash *= 9; hash += (*cast(ushort *)str << 8) + (cast(ubyte *)str)[2]; return hash; default: hash *= 9; hash += *cast(uint *)str; str += 4; len -= 4; break; } } } return hash; } TypeInfo next() { return typeid(char); } }