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[perl5.git] / cv.h
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a0d0e21e 1/* cv.h
79072805 2 *
4eb8286e 3 * Copyright (c) 1991-1999, Larry Wall
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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 *
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8 */
9
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10/* This structure much match XPVCV in B/C.pm and the beginning of XPVFM
11 * in sv.h */
44a8e56a 12
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13struct xpvcv {
14 char * xpv_pv; /* pointer to malloced string */
15 STRLEN xpv_cur; /* length of xp_pv as a C string */
16 STRLEN xpv_len; /* allocated size */
a0d0e21e 17 IV xof_off; /* integer value */
65202027 18 NV xnv_nv; /* numeric value, if any */
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19 MAGIC* xmg_magic; /* magic for scalar array */
20 HV* xmg_stash; /* class package */
21
22 HV * xcv_stash;
23 OP * xcv_start;
24 OP * xcv_root;
0cb96387 25 void (*xcv_xsub) (pTHXo_ CV*);
a0d0e21e 26 ANY xcv_xsubany;
8990e307 27 GV * xcv_gv;
57843af0 28 char * xcv_file;
b195d487 29 long xcv_depth; /* >= 2 indicates recursive call */
79072805 30 AV * xcv_padlist;
748a9306 31 CV * xcv_outside;
11343788 32#ifdef USE_THREADS
12ca11f6 33 perl_mutex *xcv_mutexp;
52e1cb5e 34 struct perl_thread *xcv_owner; /* current owner thread */
11343788 35#endif /* USE_THREADS */
77a005ab 36 cv_flags_t xcv_flags;
79072805 37};
748a9306 38
79072805 39#define Nullcv Null(CV*)
a5f75d66 40
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41#define CvSTASH(sv) ((XPVCV*)SvANY(sv))->xcv_stash
42#define CvSTART(sv) ((XPVCV*)SvANY(sv))->xcv_start
43#define CvROOT(sv) ((XPVCV*)SvANY(sv))->xcv_root
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44#define CvXSUB(sv) ((XPVCV*)SvANY(sv))->xcv_xsub
45#define CvXSUBANY(sv) ((XPVCV*)SvANY(sv))->xcv_xsubany
8990e307 46#define CvGV(sv) ((XPVCV*)SvANY(sv))->xcv_gv
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47#define CvFILE(sv) ((XPVCV*)SvANY(sv))->xcv_file
48#define CvFILEGV(sv) (gv_fetchfile(CvFILE(sv))
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49#define CvDEPTH(sv) ((XPVCV*)SvANY(sv))->xcv_depth
50#define CvPADLIST(sv) ((XPVCV*)SvANY(sv))->xcv_padlist
748a9306 51#define CvOUTSIDE(sv) ((XPVCV*)SvANY(sv))->xcv_outside
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52#ifdef USE_THREADS
53#define CvMUTEXP(sv) ((XPVCV*)SvANY(sv))->xcv_mutexp
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54#define CvOWNER(sv) ((XPVCV*)SvANY(sv))->xcv_owner
55#endif /* USE_THREADS */
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56#define CvFLAGS(sv) ((XPVCV*)SvANY(sv))->xcv_flags
57
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58#define CVf_CLONE 0x0001 /* anon CV uses external lexicals */
59#define CVf_CLONED 0x0002 /* a clone of one of those */
60#define CVf_ANON 0x0004 /* CvGV() can't be trusted */
61#define CVf_OLDSTYLE 0x0008
62#define CVf_UNIQUE 0x0010 /* can't be cloned */
63#define CVf_NODEBUG 0x0020 /* no DB::sub indirection for this CV
8ebc5c01 64 (esp. useful for special XSUBs) */
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65#define CVf_METHOD 0x0040 /* CV is explicitly marked as a method */
66#define CVf_LOCKED 0x0080 /* CV locks itself or first arg on entry */
cd06dffe 67#define CVf_LVALUE 0x0100 /* CV return value can be used as lvalue */
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68
69#define CvCLONE(cv) (CvFLAGS(cv) & CVf_CLONE)
70#define CvCLONE_on(cv) (CvFLAGS(cv) |= CVf_CLONE)
71#define CvCLONE_off(cv) (CvFLAGS(cv) &= ~CVf_CLONE)
72
73#define CvCLONED(cv) (CvFLAGS(cv) & CVf_CLONED)
74#define CvCLONED_on(cv) (CvFLAGS(cv) |= CVf_CLONED)
75#define CvCLONED_off(cv) (CvFLAGS(cv) &= ~CVf_CLONED)
76
77#define CvANON(cv) (CvFLAGS(cv) & CVf_ANON)
78#define CvANON_on(cv) (CvFLAGS(cv) |= CVf_ANON)
79#define CvANON_off(cv) (CvFLAGS(cv) &= ~CVf_ANON)
79072805 80
67caa1fe 81#ifdef PERL_XSUB_OLDSTYLE
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82#define CvOLDSTYLE(cv) (CvFLAGS(cv) & CVf_OLDSTYLE)
83#define CvOLDSTYLE_on(cv) (CvFLAGS(cv) |= CVf_OLDSTYLE)
84#define CvOLDSTYLE_off(cv) (CvFLAGS(cv) &= ~CVf_OLDSTYLE)
67caa1fe 85#endif
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86
87#define CvUNIQUE(cv) (CvFLAGS(cv) & CVf_UNIQUE)
88#define CvUNIQUE_on(cv) (CvFLAGS(cv) |= CVf_UNIQUE)
89#define CvUNIQUE_off(cv) (CvFLAGS(cv) &= ~CVf_UNIQUE)
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90
91#define CvNODEBUG(cv) (CvFLAGS(cv) & CVf_NODEBUG)
92#define CvNODEBUG_on(cv) (CvFLAGS(cv) |= CVf_NODEBUG)
93#define CvNODEBUG_off(cv) (CvFLAGS(cv) &= ~CVf_NODEBUG)
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94
95#define CvMETHOD(cv) (CvFLAGS(cv) & CVf_METHOD)
96#define CvMETHOD_on(cv) (CvFLAGS(cv) |= CVf_METHOD)
97#define CvMETHOD_off(cv) (CvFLAGS(cv) &= ~CVf_METHOD)
98
99#define CvLOCKED(cv) (CvFLAGS(cv) & CVf_LOCKED)
100#define CvLOCKED_on(cv) (CvFLAGS(cv) |= CVf_LOCKED)
101#define CvLOCKED_off(cv) (CvFLAGS(cv) &= ~CVf_LOCKED)
1aff0e91 102
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103#define CvLVALUE(cv) (CvFLAGS(cv) & CVf_LVALUE)
104#define CvLVALUE_on(cv) (CvFLAGS(cv) |= CVf_LVALUE)
105#define CvLVALUE_off(cv) (CvFLAGS(cv) &= ~CVf_LVALUE)
106
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107#define CvEVAL(cv) (CvUNIQUE(cv) && !SvFAKE(cv))
108#define CvEVAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_off(cv))
109#define CvEVAL_off(cv) CvUNIQUE_off(cv)
110
111/* BEGIN|INIT|END */
112#define CvSPECIAL(cv) (CvUNIQUE(cv) && SvFAKE(cv))
113#define CvSPECIAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_on(cv))
114#define CvSPECIAL_off(cv) (CvUNIQUE_off(cv),SvFAKE_off(cv))