Commit | Line | Data |
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a0d0e21e | 1 | /* hv.h |
79072805 | 2 | * |
a0d0e21e | 3 | * Copyright (c) 1991-1994, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
79072805 LW |
8 | */ |
9 | ||
79072805 LW |
10 | typedef struct he HE; |
11 | ||
12 | struct he { | |
13 | HE *hent_next; | |
14 | char *hent_key; | |
15 | SV *hent_val; | |
93a17b20 | 16 | U32 hent_hash; |
79072805 LW |
17 | I32 hent_klen; |
18 | }; | |
19 | ||
20 | struct xpvhv { | |
463ee0b2 LW |
21 | char * xhv_array; /* pointer to malloced string */ |
22 | STRLEN xhv_fill; /* how full xhv_array currently is */ | |
23 | STRLEN xhv_max; /* subscript of last element of xhv_array */ | |
a0d0e21e | 24 | I32 xhv_keys; /* how many elements in the array */ |
79072805 LW |
25 | double xnv_nv; /* numeric value, if any */ |
26 | MAGIC* xmg_magic; /* magic for scalar array */ | |
27 | HV* xmg_stash; /* class package */ | |
28 | ||
79072805 LW |
29 | I32 xhv_riter; /* current root of iterator */ |
30 | HE *xhv_eiter; /* current entry of iterator */ | |
31 | PMOP *xhv_pmroot; /* list of pm's for this package */ | |
32 | char *xhv_name; /* name, if a symbol table */ | |
79072805 LW |
33 | }; |
34 | ||
bf6bd887 | 35 | #define PERL_HASH(hash,str,len) \ |
36 | STMT_START { \ | |
37 | register char *s_PeRlHaSh = str; \ | |
38 | register I32 i_PeRlHaSh = len; \ | |
39 | register U32 hash_PeRlHaSh = 0; \ | |
40 | while (i_PeRlHaSh--) \ | |
41 | hash_PeRlHaSh = hash_PeRlHaSh * 33 + *s_PeRlHaSh++; \ | |
42 | (hash) = hash_PeRlHaSh; \ | |
43 | } STMT_END | |
44 | ||
45 | ||
46 | /* these hash entry flags ride on hent_klen */ | |
47 | ||
48 | #define HEf_LAZYDEL -1 /* entry must be deleted during next iter step */ | |
49 | #define HEf_SVKEY -2 /* hent_key is a SV* (only for magic/tied HVs) */ | |
50 | ||
51 | ||
79072805 | 52 | #define Nullhv Null(HV*) |
463ee0b2 | 53 | #define HvARRAY(hv) ((HE**)((XPVHV*) SvANY(hv))->xhv_array) |
79072805 | 54 | #define HvFILL(hv) ((XPVHV*) SvANY(hv))->xhv_fill |
463ee0b2 LW |
55 | #define HvMAX(hv) ((XPVHV*) SvANY(hv))->xhv_max |
56 | #define HvKEYS(hv) ((XPVHV*) SvANY(hv))->xhv_keys | |
79072805 LW |
57 | #define HvRITER(hv) ((XPVHV*) SvANY(hv))->xhv_riter |
58 | #define HvEITER(hv) ((XPVHV*) SvANY(hv))->xhv_eiter | |
59 | #define HvPMROOT(hv) ((XPVHV*) SvANY(hv))->xhv_pmroot | |
60 | #define HvNAME(hv) ((XPVHV*) SvANY(hv))->xhv_name | |
a0d0e21e | 61 | |
bf6bd887 | 62 | #define HvSHAREKEYS(hv) (SvFLAGS(hv) & SVphv_SHAREKEYS) |
63 | #define HvSHAREKEYS_on(hv) (SvFLAGS(hv) |= SVphv_SHAREKEYS) | |
64 | #define HvSHAREKEYS_off(hv) (SvFLAGS(hv) &= ~SVphv_SHAREKEYS) | |
65 | ||
a0d0e21e LW |
66 | #ifdef OVERLOAD |
67 | ||
68 | /* Maybe amagical: */ | |
69 | /* #define HV_AMAGICmb(hv) (SvFLAGS(hv) & (SVpgv_badAM | SVpgv_AM)) */ | |
70 | ||
71 | #define HV_AMAGIC(hv) (SvFLAGS(hv) & SVpgv_AM) | |
72 | #define HV_AMAGIC_on(hv) (SvFLAGS(hv) |= SVpgv_AM) | |
73 | #define HV_AMAGIC_off(hv) (SvFLAGS(hv) &= ~SVpgv_AM) | |
74 | ||
75 | /* | |
76 | #define HV_AMAGICbad(hv) (SvFLAGS(hv) & SVpgv_badAM) | |
77 | #define HV_badAMAGIC_on(hv) (SvFLAGS(hv) |= SVpgv_badAM) | |
78 | #define HV_badAMAGIC_off(hv) (SvFLAGS(hv) &= ~SVpgv_badAM) | |
79 | */ | |
80 | ||
81 | #endif /* OVERLOAD */ | |
bf6bd887 | 82 | |
83 | #define Nullhe Null(HE*) | |
84 | #define HeNEXT(he) (he)->hent_next | |
85 | #define HeKEY(he) (he)->hent_key | |
86 | #define HeKLEN(he) (he)->hent_klen | |
87 | #define HeVAL(he) (he)->hent_val | |
88 | #define HeHASH(he) (he)->hent_hash | |
89 | #define HePV(he) ((he)->hent_klen == HEf_SVKEY) ? \ | |
90 | SvPV((SV*)((he)->hent_key),na) : \ | |
91 | (he)->hent_key)) | |
92 | #define HeSVKEY(he) (((he)->hent_key && \ | |
93 | (he)->hent_klen == HEf_SVKEY) ? \ | |
94 | (SV*)((he)->hent_key) : Nullsv) | |
95 | ||
96 | #define HeSVKEY_force(he) ((he)->hent_key ? \ | |
97 | (((he)->hent_klen == HEf_SVKEY) ? \ | |
98 | (SV*)((he)->hent_key) : \ | |
99 | sv_2mortal(newSVpv((he)->hent_key, \ | |
100 | (he)->hent_klen))) : \ | |
101 | &sv_undef) |