X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/d908838680ec40ea0e85f59ee66f5f56a225f9b4..94814ff57ebcea3e481c1e790e0fbce3453704ae:/cv.h diff --git a/cv.h b/cv.h index e6f5cba..7c06727 100644 --- a/cv.h +++ b/cv.h @@ -8,7 +8,7 @@ * */ -/* This structure must the beginning of XPVFM in sv.h */ +/* This structure must match the beginning of XPVFM in sv.h */ struct xpvcv { _XPV_HEAD; @@ -26,8 +26,16 @@ Null CV pointer. =head1 CV Manipulation Functions +This section documents functions to manipulate CVs which are code-values, +or subroutines. For more information, see L. + =for apidoc Am|HV*|CvSTASH|CV* cv -Returns the stash of the CV. +Returns the stash of the CV. A stash is the symbol table hash, containing +the package-scoped variables in the package where the subroutine was defined. +For more information, see L. + +This also has a special use with XS AUTOLOAD subs. +See L. =cut */ @@ -36,7 +44,8 @@ Returns the stash of the CV. # define Nullcv Null(CV*) #endif -#define CvSTASH(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_stash +#define CvSTASH(sv) (0+((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_stash) +#define CvSTASH_set(cv,st) Perl_cvstash_set(aTHX_ cv, st) #define CvSTART(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_start_u.xcv_start #define CvROOT(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_root_u.xcv_root #define CvXSUB(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_root_u.xcv_xsub @@ -45,24 +54,36 @@ Returns the stash of the CV. #define CvGV_set(cv,gv) Perl_cvgv_set(aTHX_ cv, gv) #define CvFILE(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_file #ifdef USE_ITHREADS -# define CvFILE_set_from_cop(sv, cop) (CvFILE(sv) = savepv(CopFILE(cop))) +# define CvFILE_set_from_cop(sv, cop) \ + (CvFILE(sv) = savepv(CopFILE(cop)), CvDYNFILE_on(sv)) #else -# define CvFILE_set_from_cop(sv, cop) (CvFILE(sv) = CopFILE(cop)) +# define CvFILE_set_from_cop(sv, cop) \ + (CvFILE(sv) = CopFILE(cop), CvDYNFILE_off(sv)) #endif #define CvFILEGV(sv) (gv_fetchfile(CvFILE(sv))) -#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) -# define CvDEPTH(sv) (*({const CV *const _cvdepth = (const CV *)sv; \ - assert(SvTYPE(_cvdepth) == SVt_PVCV); \ - &((XPVCV*)SvANY(_cvdepth))->xcv_depth; \ - })) -#else -# define CvDEPTH(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_depth -#endif +#define CvDEPTH(sv) (*S_CvDEPTHp((const CV *)sv)) #define CvPADLIST(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_padlist #define CvOUTSIDE(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_outside #define CvFLAGS(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_flags #define CvOUTSIDE_SEQ(sv) ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_outside_seq +/* These two are sometimes called on non-CVs */ +#define CvPROTO(sv) \ + ( \ + SvPOK(sv) \ + ? SvTYPE(sv) == SVt_PVCV && CvAUTOLOAD(sv) \ + ? SvEND(sv)+1 : SvPVX_const(sv) \ + : NULL \ + ) +#define CvPROTOLEN(sv) \ + ( \ + SvPOK(sv) \ + ? SvTYPE(sv) == SVt_PVCV && CvAUTOLOAD(sv) \ + ? SvLEN(sv)-SvCUR(sv)-2 \ + : SvCUR(sv) \ + : 0 \ + ) + #define CVf_METHOD 0x0001 /* CV is explicitly marked as a method */ #define CVf_LVALUE 0x0002 /* CV return value can be used as lvalue */ #define CVf_CONST 0x0004 /* inlinable sub */ @@ -77,6 +98,12 @@ Returns the stash of the CV. #define CVf_NODEBUG 0x0200 /* no DB::sub indirection for this CV (esp. useful for special XSUBs) */ #define CVf_CVGV_RC 0x0400 /* CvGV is reference counted */ +#ifdef PERL_CORE +# define CVf_SLABBED 0x0800 /* Holds refcount on op slab */ +#endif +#define CVf_DYNFILE 0x1000 /* The filename isn't static */ +#define CVf_AUTOLOAD 0x2000 /* SvPVX contains AUTOLOADed sub name */ +#define CVf_HASEVAL 0x4000 /* contains string eval */ /* This symbol for optimised communication between toke.c and op.c: */ #define CVf_BUILTIN_ATTRS (CVf_METHOD|CVf_LVALUE) @@ -93,6 +120,7 @@ Returns the stash of the CV. #define CvANON_on(cv) (CvFLAGS(cv) |= CVf_ANON) #define CvANON_off(cv) (CvFLAGS(cv) &= ~CVf_ANON) +/* CvEVAL or CvSPECIAL */ #define CvUNIQUE(cv) (CvFLAGS(cv) & CVf_UNIQUE) #define CvUNIQUE_on(cv) (CvFLAGS(cv) |= CVf_UNIQUE) #define CvUNIQUE_off(cv) (CvFLAGS(cv) &= ~CVf_UNIQUE) @@ -109,6 +137,7 @@ Returns the stash of the CV. #define CvLVALUE_on(cv) (CvFLAGS(cv) |= CVf_LVALUE) #define CvLVALUE_off(cv) (CvFLAGS(cv) &= ~CVf_LVALUE) +/* eval or PL_main_cv */ #define CvEVAL(cv) (CvUNIQUE(cv) && !SvFAKE(cv)) #define CvEVAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_off(cv)) #define CvEVAL_off(cv) CvUNIQUE_off(cv) @@ -134,6 +163,24 @@ Returns the stash of the CV. #define CvCVGV_RC_on(cv) (CvFLAGS(cv) |= CVf_CVGV_RC) #define CvCVGV_RC_off(cv) (CvFLAGS(cv) &= ~CVf_CVGV_RC) +#ifdef PERL_CORE +# define CvSLABBED(cv) (CvFLAGS(cv) & CVf_SLABBED) +# define CvSLABBED_on(cv) (CvFLAGS(cv) |= CVf_SLABBED) +# define CvSLABBED_off(cv) (CvFLAGS(cv) &= ~CVf_SLABBED) +#endif + +#define CvDYNFILE(cv) (CvFLAGS(cv) & CVf_DYNFILE) +#define CvDYNFILE_on(cv) (CvFLAGS(cv) |= CVf_DYNFILE) +#define CvDYNFILE_off(cv) (CvFLAGS(cv) &= ~CVf_DYNFILE) + +#define CvAUTOLOAD(cv) (CvFLAGS(cv) & CVf_AUTOLOAD) +#define CvAUTOLOAD_on(cv) (CvFLAGS(cv) |= CVf_AUTOLOAD) +#define CvAUTOLOAD_off(cv) (CvFLAGS(cv) &= ~CVf_AUTOLOAD) + +#define CvHASEVAL(cv) (CvFLAGS(cv) & CVf_HASEVAL) +#define CvHASEVAL_on(cv) (CvFLAGS(cv) |= CVf_HASEVAL) +#define CvHASEVAL_off(cv) (CvFLAGS(cv) &= ~CVf_HASEVAL) + /* Flags for newXS_flags */ #define XS_DYNAMIC_FILENAME 0x01 /* The filename isn't static */ @@ -198,8 +245,8 @@ typedef OP *(*Perl_call_checker)(pTHX_ OP *, GV *, SV *); * Local variables: * c-indentation-style: bsd * c-basic-offset: 4 - * indent-tabs-mode: t + * indent-tabs-mode: nil * End: * - * ex: set ts=8 sts=4 sw=4 noet: + * ex: set ts=8 sts=4 sw=4 et: */