diff options
Diffstat (limited to 'sv.h')
| -rw-r--r-- | sv.h | 171 |
1 files changed, 100 insertions, 71 deletions
@@ -1,49 +1,33 @@ -/* $RCSfile: sv.h,v $$Revision: 4.1 $$Date: 92/08/07 18:26:57 $ +/* sv.h * - * Copyright (c) 1991, Larry Wall + * Copyright (c) 1991-1994, Larry Wall * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. * - * $Log: sv.h,v $ - * Revision 4.1 92/08/07 18:26:57 lwall - * - * Revision 4.0.1.4 92/06/08 15:41:45 lwall - * patch20: fixed confusion between a *var's real name and its effective name - * patch20: removed implicit int declarations on functions - * - * Revision 4.0.1.3 91/11/05 18:41:47 lwall - * patch11: random cleanup - * patch11: solitary subroutine references no longer trigger typo warnings - * - * Revision 4.0.1.2 91/06/07 11:58:33 lwall - * patch4: new copyright notice - * - * Revision 4.0.1.1 91/04/12 09:16:12 lwall - * patch1: you may now use "die" and "caller" in a signal handler - * - * Revision 4.0 91/03/20 01:40:04 lwall - * 4.0 baseline. - * */ +#ifdef sv_flags +#undef sv_flags /* Convex has this in <signal.h> for sigvec() */ +#endif + typedef enum { - SVt_NULL, - SVt_IV, - SVt_NV, - SVt_RV, - SVt_PV, - SVt_PVIV, - SVt_PVNV, - SVt_PVMG, - SVt_PVBM, - SVt_PVLV, - SVt_PVAV, - SVt_PVHV, - SVt_PVCV, - SVt_PVGV, - SVt_PVFM, - SVt_PVIO + SVt_NULL, /* 0 */ + SVt_IV, /* 1 */ + SVt_NV, /* 2 */ + SVt_RV, /* 3 */ + SVt_PV, /* 4 */ + SVt_PVIV, /* 5 */ + SVt_PVNV, /* 6 */ + SVt_PVMG, /* 7 */ + SVt_PVBM, /* 8 */ + SVt_PVLV, /* 9 */ + SVt_PVAV, /* 10 */ + SVt_PVHV, /* 11 */ + SVt_PVCV, /* 12 */ + SVt_PVGV, /* 13 */ + SVt_PVFM, /* 14 */ + SVt_PVIO /* 15 */ } svtype; /* Using C's structural equivalence to help emulate C++ inheritance here... */ @@ -115,16 +99,26 @@ struct io { #define SVf_NOK 0x00020000 /* has valid public numeric value */ #define SVf_POK 0x00040000 /* has valid public pointer value */ #define SVf_ROK 0x00080000 /* has a valid reference pointer */ -#define SVf_OK 0x00100000 /* has defined value */ + +#define SVf_FAKE 0x00100000 /* glob is just a copy */ #define SVf_OOK 0x00200000 /* has valid offset value */ #define SVf_BREAK 0x00400000 /* refcnt is artificially low */ #define SVf_READONLY 0x00800000 /* may not be modified */ +#define SVf_THINKFIRST (SVf_READONLY|SVf_ROK) + #define SVp_IOK 0x01000000 /* has valid non-public integer value */ #define SVp_NOK 0x02000000 /* has valid non-public numeric value */ #define SVp_POK 0x04000000 /* has valid non-public pointer value */ #define SVp_SCREAM 0x08000000 /* has been studied? */ +#define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \ + SVp_IOK|SVp_NOK|SVp_POK) + +#ifdef OVERLOAD +#define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */ +#endif /* OVERLOAD */ + #define PRIVSHIFT 8 /* Some private flags. */ @@ -137,6 +131,11 @@ struct io { #define SVpgv_MULTI 0x80000000 +#ifdef OVERLOAD +#define SVpgv_AM 0x40000000 +/* #define SVpgv_badAM 0x20000000 */ +#endif /* OVERLOAD */ + struct xrv { SV * xrv_rv; /* pointer to another SV */ }; @@ -151,14 +150,14 @@ struct xpviv { char * xpv_pv; /* pointer to malloced string */ STRLEN xpv_cur; /* length of xpv_pv as a C string */ STRLEN xpv_len; /* allocated size */ - I32 xiv_iv; /* integer value or pv offset */ + IV xiv_iv; /* integer value or pv offset */ }; struct xpvnv { char * xpv_pv; /* pointer to malloced string */ STRLEN xpv_cur; /* length of xpv_pv as a C string */ STRLEN xpv_len; /* allocated size */ - I32 xiv_iv; /* integer value or pv offset */ + IV xiv_iv; /* integer value or pv offset */ double xnv_nv; /* numeric value, if any */ }; @@ -166,7 +165,7 @@ struct xpvmg { char * xpv_pv; /* pointer to malloced string */ STRLEN xpv_cur; /* length of xpv_pv as a C string */ STRLEN xpv_len; /* allocated size */ - I32 xiv_iv; /* integer value or pv offset */ + IV xiv_iv; /* integer value or pv offset */ double xnv_nv; /* numeric value, if any */ MAGIC* xmg_magic; /* linked list of magicalness */ HV* xmg_stash; /* class package */ @@ -176,7 +175,7 @@ struct xpvlv { char * xpv_pv; /* pointer to malloced string */ STRLEN xpv_cur; /* length of xpv_pv as a C string */ STRLEN xpv_len; /* allocated size */ - I32 xiv_iv; /* integer value or pv offset */ + IV xiv_iv; /* integer value or pv offset */ double xnv_nv; /* numeric value, if any */ MAGIC* xmg_magic; /* linked list of magicalness */ HV* xmg_stash; /* class package */ @@ -191,7 +190,7 @@ struct xpvgv { char * xpv_pv; /* pointer to malloced string */ STRLEN xpv_cur; /* length of xpv_pv as a C string */ STRLEN xpv_len; /* allocated size */ - I32 xiv_iv; /* integer value or pv offset */ + IV xiv_iv; /* integer value or pv offset */ double xnv_nv; /* numeric value, if any */ MAGIC* xmg_magic; /* linked list of magicalness */ HV* xmg_stash; /* class package */ @@ -206,7 +205,7 @@ struct xpvbm { char * xpv_pv; /* pointer to malloced string */ STRLEN xpv_cur; /* length of xpv_pv as a C string */ STRLEN xpv_len; /* allocated size */ - I32 xiv_iv; /* integer value or pv offset */ + IV xiv_iv; /* integer value or pv offset */ double xnv_nv; /* numeric value, if any */ MAGIC* xmg_magic; /* linked list of magicalness */ HV* xmg_stash; /* class package */ @@ -220,7 +219,7 @@ struct xpvfm { char * xpv_pv; /* pointer to malloced string */ STRLEN xpv_cur; /* length of xpv_pv as a C string */ STRLEN xpv_len; /* allocated size */ - I32 xiv_iv; /* integer value or pv offset */ + IV xiv_iv; /* integer value or pv offset */ double xnv_nv; /* numeric value, if any */ MAGIC* xmg_magic; /* linked list of magicalness */ HV* xmg_stash; /* class package */ @@ -228,12 +227,12 @@ struct xpvfm { HV * xcv_stash; OP * xcv_start; OP * xcv_root; - I32 (*xcv_usersub)(); - I32 xcv_userindex; + void (*xcv_xsub)_((CV*)); + ANY xcv_xsubany; + GV * xcv_gv; GV * xcv_filegv; long xcv_depth; /* >= 2 indicates recursive call */ AV * xcv_padlist; - bool xcv_deleted; I32 xfm_lines; }; @@ -241,7 +240,7 @@ struct xpvio { char * xpv_pv; /* pointer to malloced string */ STRLEN xpv_cur; /* length of xpv_pv as a C string */ STRLEN xpv_len; /* allocated size */ - I32 xiv_iv; /* integer value or pv offset */ + IV xiv_iv; /* integer value or pv offset */ double xnv_nv; /* numeric value, if any */ MAGIC* xmg_magic; /* linked list of magicalness */ HV* xmg_stash; /* class package */ @@ -271,13 +270,17 @@ struct xpvio { /* The following macros define implementation-independent predicates on SVs. */ #define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK)) +#define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \ + SVp_IOK|SVp_NOK)) #define SvOK(sv) (SvFLAGS(sv) & SVf_OK) -#define SvOK_on(sv) (SvFLAGS(sv) |= SVf_OK) -#define SvOK_off(sv) (SvFLAGS(sv) &= \ - ~(SVf_IOK|SVf_NOK|SVf_POK|SVf_OK| \ - SVp_IOK|SVp_NOK|SVp_POK|SVf_ROK),\ - SvOOK_off(sv)) + +#ifdef OVERLOAD +#define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \ + SvOOK_off(sv)) +#else +#define SvOK_off(sv) (SvFLAGS(sv) &= ~SVf_OK, SvOOK_off(sv)) +#endif /* OVERLOAD */ #define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) #define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK) @@ -289,30 +292,39 @@ struct xpvio { #define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK) #define SvIOK_on(sv) (SvOOK_off(sv), \ - SvFLAGS(sv) |= (SVf_IOK|SVp_IOK|SVf_OK)) + SvFLAGS(sv) |= (SVf_IOK|SVp_IOK)) #define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK)) #define SvIOK_only(sv) (SvOK_off(sv), \ - SvFLAGS(sv) |= (SVf_IOK|SVp_IOK|SVf_OK)) + SvFLAGS(sv) |= (SVf_IOK|SVp_IOK)) #define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK) -#define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK|SVf_OK)) +#define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK)) #define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK)) #define SvNOK_only(sv) (SvOK_off(sv), \ - SvFLAGS(sv) |= (SVf_NOK|SVp_NOK|SVf_OK)) + SvFLAGS(sv) |= (SVf_NOK|SVp_NOK)) #define SvPOK(sv) (SvFLAGS(sv) & SVf_POK) -#define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK|SVf_OK)) +#define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK)) #define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK)) #define SvPOK_only(sv) (SvOK_off(sv), \ - SvFLAGS(sv) |= (SVf_POK|SVp_POK|SVf_OK)) + SvFLAGS(sv) |= (SVf_POK|SVp_POK)) #define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK) #define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK) #define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv)) +#define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE) +#define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE) +#define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE) + #define SvROK(sv) (SvFLAGS(sv) & SVf_ROK) -#define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK|SVf_OK) +#define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK) + +#ifdef OVERLOAD +#define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC)) +#else #define SvROK_off(sv) (SvFLAGS(sv) &= ~SVf_ROK) +#endif /* OVERLOAD */ #define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG)) #define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG)) @@ -330,7 +342,20 @@ struct xpvio { #define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG) #define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG) -#define SvTHINKFIRST(sv) (SvFLAGS(sv) & (SVf_ROK|SVf_READONLY)) +#ifdef OVERLOAD +#define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC) +#define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC) +#define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC) + +/* +#define Gv_AMG(stash) \ + (HV_AMAGICmb(stash) && \ + ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash))) +*/ +#define Gv_AMG(stash) (amagic_generation && Gv_AMupdate(stash)) +#endif /* OVERLOAD */ + +#define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST) #define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY) @@ -441,19 +466,21 @@ struct xpvio { #define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type #define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags -#define SvTAINT(sv) if (tainting && tainted) sv_magic(sv, 0, 't', 0, 0) +#define SvTAINT(sv) if (tainting && tainted) sv_magic(sv, Nullsv, 't', Nullch, 0) #ifdef CRIPPLED_CC -I32 SvIV(); -double SvNV(); +IV SvIV _((SV* sv)); +double SvNV _((SV* sv)); +#define SvPV_force(sv, lp) sv_pvn_force(sv, &lp) #define SvPV(sv, lp) sv_pvn(sv, &lp) -char *sv_pvn(); -I32 SvTRUE(); +char *sv_pvn _((SV *, STRLEN *)); +I32 SvTRUE _((SV *)); #define SvIVx(sv) SvIV(sv) #define SvNVx(sv) SvNV(sv) #define SvPVx(sv, lp) sv_pvn(sv, &lp) +#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp) #define SvTRUEx(sv) SvTRUE(sv) #else /* !CRIPPLED_CC */ @@ -464,6 +491,8 @@ I32 SvTRUE(); #define SvPV(sv, lp) (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp)) +#define SvPV_force(sv, lp) ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp)) + #define SvTRUE(sv) ( \ !sv \ ? 0 \ @@ -499,11 +528,11 @@ I32 SvTRUE(); #define isGV(sv) (SvTYPE(sv) == SVt_PVGV) #ifndef DOSISH -# define SvGROW(sv,len) if (SvLEN(sv) < (len)) sv_grow(sv,len) +# define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv)) # define Sv_Grow sv_grow #else /* extra parentheses intentionally NOT placed around "len"! */ -# define SvGROW(sv,len) if (SvLEN(sv) < (unsigned long)len) \ - sv_grow(sv,(unsigned long)len) +# define SvGROW(sv,len) ((SvLEN(sv) < (unsigned long)len) \ + ? sv_grow(sv,(unsigned long)len) : SvPVX(sv)) # define Sv_Grow(sv,len) sv_grow(sv,(unsigned long)(len)) #endif /* DOSISH */ |