X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/0ffb5b03d3cde2b28eda4897b664c02ce9f0e9dd..23cfd2fcc891e2298c078e093010af5bdb902cc6:/mg_vtable.h

diff --git a/mg_vtable.h b/mg_vtable.h
index 6353353..8846262 100644
--- a/mg_vtable.h
+++ b/mg_vtable.h
@@ -6,6 +6,129 @@
  * Any changes made here will be lost!
  */
 
+/* These constants should be used in preference to raw characters
+ * when using magic. Note that some perl guts still assume
+ * certain character properties of these constants, namely that
+ * isUPPER() and toLOWER() may do useful mappings.
+ */
+
+#define PERL_MAGIC_sv             '\0' /* Special scalar variable */
+#define PERL_MAGIC_arylen         '#' /* Array length ($#ary) */
+#define PERL_MAGIC_rhash          '%' /* extra data for restricted hashes */
+#define PERL_MAGIC_pos            '.' /* pos() lvalue */
+#define PERL_MAGIC_symtab         ':' /* extra data for symbol tables */
+#define PERL_MAGIC_backref        '<' /* for weak ref data */
+#define PERL_MAGIC_arylen_p       '@' /* to move arylen out of XPVAV */
+#define PERL_MAGIC_overload       'A' /* %OVERLOAD hash */
+#define PERL_MAGIC_overload_elem  'a' /* %OVERLOAD hash element */
+#define PERL_MAGIC_bm             'B' /* Boyer-Moore (fast string search) */
+#define PERL_MAGIC_overload_table 'c' /* Holds overload table (AMT) on stash */
+#define PERL_MAGIC_regdata        'D' /* Regex match position data
+                                         (@+ and @- vars) */
+#define PERL_MAGIC_regdatum       'd' /* Regex match position data element */
+#define PERL_MAGIC_env            'E' /* %ENV hash */
+#define PERL_MAGIC_envelem        'e' /* %ENV hash element */
+#define PERL_MAGIC_fm             'f' /* Formline ('compiled' format) */
+#define PERL_MAGIC_regex_global   'g' /* m//g target / study()ed string */
+#define PERL_MAGIC_hints          'H' /* %^H hash */
+#define PERL_MAGIC_hintselem      'h' /* %^H hash element */
+#define PERL_MAGIC_isa            'I' /* @ISA array */
+#define PERL_MAGIC_isaelem        'i' /* @ISA array element */
+#define PERL_MAGIC_nkeys          'k' /* scalar(keys()) lvalue */
+#define PERL_MAGIC_dbfile         'L' /* Debugger %_<filename */
+#define PERL_MAGIC_dbline         'l' /* Debugger %_<filename element */
+#define PERL_MAGIC_shared         'N' /* Shared between threads */
+#define PERL_MAGIC_shared_scalar  'n' /* Shared between threads */
+#define PERL_MAGIC_collxfrm       'o' /* Locale transformation */
+#define PERL_MAGIC_tied           'P' /* Tied array or hash */
+#define PERL_MAGIC_tiedelem       'p' /* Tied array or hash element */
+#define PERL_MAGIC_tiedscalar     'q' /* Tied scalar or handle */
+#define PERL_MAGIC_qr             'r' /* precompiled qr// regex */
+#define PERL_MAGIC_sig            'S' /* %SIG hash */
+#define PERL_MAGIC_sigelem        's' /* %SIG hash element */
+#define PERL_MAGIC_taint          't' /* Taintedness */
+#define PERL_MAGIC_uvar           'U' /* Available for use by extensions */
+#define PERL_MAGIC_uvar_elem      'u' /* Reserved for use by extensions */
+#define PERL_MAGIC_vstring        'V' /* SV was vstring literal */
+#define PERL_MAGIC_vec            'v' /* vec() lvalue */
+#define PERL_MAGIC_utf8           'w' /* Cached UTF-8 information */
+#define PERL_MAGIC_substr         'x' /* substr() lvalue */
+#define PERL_MAGIC_defelem        'y' /* Shadow "foreach" iterator variable /
+                                         smart parameter vivification */
+#define PERL_MAGIC_checkcall      ']' /* inlining/mutation of call to this CV */
+#define PERL_MAGIC_ext            '~' /* Available for use by extensions */
+
+enum {		/* pass one of these to get_vtbl */
+    want_vtbl_amagic,
+    want_vtbl_amagicelem,
+    want_vtbl_arylen,
+    want_vtbl_arylen_p,
+    want_vtbl_backref,
+    want_vtbl_collxfrm,
+    want_vtbl_dbline,
+    want_vtbl_defelem,
+    want_vtbl_env,
+    want_vtbl_envelem,
+    want_vtbl_hints,
+    want_vtbl_hintselem,
+    want_vtbl_isa,
+    want_vtbl_isaelem,
+    want_vtbl_mglob,
+    want_vtbl_nkeys,
+    want_vtbl_ovrld,
+    want_vtbl_pack,
+    want_vtbl_packelem,
+    want_vtbl_pos,
+    want_vtbl_regdata,
+    want_vtbl_regdatum,
+    want_vtbl_regexp,
+    want_vtbl_sigelem,
+    want_vtbl_substr,
+    want_vtbl_sv,
+    want_vtbl_taint,
+    want_vtbl_utf8,
+    want_vtbl_uvar,
+    want_vtbl_vec,
+    magic_vtable_max
+};
+
+#ifdef DOINIT
+EXTCONST char *PL_magic_vtable_names[magic_vtable_max] = {
+    "amagic",
+    "amagicelem",
+    "arylen",
+    "arylen_p",
+    "backref",
+    "collxfrm",
+    "dbline",
+    "defelem",
+    "env",
+    "envelem",
+    "hints",
+    "hintselem",
+    "isa",
+    "isaelem",
+    "mglob",
+    "nkeys",
+    "ovrld",
+    "pack",
+    "packelem",
+    "pos",
+    "regdata",
+    "regdatum",
+    "regexp",
+    "sigelem",
+    "substr",
+    "sv",
+    "taint",
+    "utf8",
+    "uvar",
+    "vec"
+};
+#else
+EXTCONST char *PL_magic_vtable_names[magic_vtable_max];
+#endif
+
 /* These all need to be 0, not NULL, as NULL can be (void*)0, which is a
  * pointer to data, whereas we're assigning pointers to functions, which are
  * not the same beast. ANSI doesn't allow the assignment from one to the other.
@@ -24,232 +147,84 @@
 */
 
 #ifdef DOINIT
-EXT_MGVTBL PL_vtbl_sv
-  = { Perl_magic_get, Perl_magic_set, Perl_magic_len, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_sv;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_env
-  = { 0, Perl_magic_set_all_env, 0, Perl_magic_clear_all_env, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_env;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_envelem
-  = { 0, Perl_magic_setenv, 0, Perl_magic_clearenv, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_envelem;
-#endif
-
-#ifndef PERL_MICRO
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_sigelem
-  = { Perl_magic_getsig, Perl_magic_setsig, 0, Perl_magic_clearsig, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_sigelem;
-#endif
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_pack
-  = { 0, 0, Perl_magic_sizepack, Perl_magic_wipepack, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_pack;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_packelem
-  = { Perl_magic_getpack, Perl_magic_setpack, 0, Perl_magic_clearpack, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_packelem;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_dbline
-  = { 0, Perl_magic_setdbline, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_dbline;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_isa
-  = { 0, Perl_magic_setisa, 0, Perl_magic_clearisa, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_isa;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_isaelem
-  = { 0, Perl_magic_setisa, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_isaelem;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_arylen
-  = { (int (*)(pTHX_ SV *, MAGIC *))Perl_magic_getarylen, Perl_magic_setarylen, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_arylen;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_arylen_p
-  = { 0, 0, 0, 0, Perl_magic_freearylen_p, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_arylen_p;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_mglob
-  = { 0, Perl_magic_setmglob, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_mglob;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_nkeys
-  = { Perl_magic_getnkeys, Perl_magic_setnkeys, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_nkeys;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_taint
-  = { Perl_magic_gettaint, Perl_magic_settaint, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_taint;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_substr
-  = { Perl_magic_getsubstr, Perl_magic_setsubstr, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_substr;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_vec
-  = { Perl_magic_getvec, Perl_magic_setvec, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_vec;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_pos
-  = { Perl_magic_getpos, Perl_magic_setpos, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_pos;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_bm
-  = { 0, Perl_magic_setregexp, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_bm;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_fm
-  = { 0, Perl_magic_setregexp, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_fm;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_uvar
-  = { Perl_magic_getuvar, Perl_magic_setuvar, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_uvar;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_defelem
-  = { Perl_magic_getdefelem, Perl_magic_setdefelem, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_defelem;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_regexp
-  = { 0, Perl_magic_setregexp, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_regexp;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_regdata
-  = { 0, 0, Perl_magic_regdata_cnt, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_regdata;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_regdatum
-  = { Perl_magic_regdatum_get, Perl_magic_regdatum_set, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_regdatum;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_amagic
-  = { 0, Perl_magic_setamagic, 0, 0, Perl_magic_setamagic, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_amagic;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_amagicelem
-  = { 0, Perl_magic_setamagic, 0, 0, Perl_magic_setamagic, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_amagicelem;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_backref
-  = { 0, 0, 0, 0, Perl_magic_killbackrefs, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_backref;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_ovrld
-  = { 0, 0, 0, 0, Perl_magic_freeovrld, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_ovrld;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_utf8
-  = { 0, Perl_magic_setutf8, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_utf8;
-#endif
-
+EXT_MGVTBL PL_magic_vtables[magic_vtable_max] = {
+  { 0, Perl_magic_setamagic, 0, 0, Perl_magic_setamagic, 0, 0, 0 },
+  { 0, Perl_magic_setamagic, 0, 0, Perl_magic_setamagic, 0, 0, 0 },
+  { (int (*)(pTHX_ SV *, MAGIC *))Perl_magic_getarylen, Perl_magic_setarylen, 0, 0, 0, 0, 0, 0 },
+  { 0, 0, 0, 0, Perl_magic_freearylen_p, 0, 0, 0 },
+  { 0, 0, 0, 0, Perl_magic_killbackrefs, 0, 0, 0 },
 #ifdef USE_LOCALE_COLLATE
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_collxfrm
-  = { 0, Perl_magic_setcollxfrm, 0, 0, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_collxfrm;
-#endif
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_hintselem
-  = { 0, Perl_magic_sethint, 0, Perl_magic_clearhint, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_hintselem;
-#endif
-
-#ifdef DOINIT
-EXT_MGVTBL PL_vtbl_hints
-  = { 0, 0, 0, Perl_magic_clearhints, 0, 0, 0, 0 };
-#else
-EXT_MGVTBL PL_vtbl_hints;
-#endif
-
+  { 0, Perl_magic_setcollxfrm, 0, 0, 0, 0, 0, 0 },
+#else
+  { 0, 0, 0, 0, 0, 0, 0, 0 },
+#endif
+  { 0, Perl_magic_setdbline, 0, 0, 0, 0, 0, 0 },
+  { Perl_magic_getdefelem, Perl_magic_setdefelem, 0, 0, 0, 0, 0, 0 },
+  { 0, Perl_magic_set_all_env, 0, Perl_magic_clear_all_env, 0, 0, 0, 0 },
+  { 0, Perl_magic_setenv, 0, Perl_magic_clearenv, 0, 0, 0, 0 },
+  { 0, 0, 0, Perl_magic_clearhints, 0, 0, 0, 0 },
+  { 0, Perl_magic_sethint, 0, Perl_magic_clearhint, 0, 0, 0, 0 },
+  { 0, Perl_magic_setisa, 0, Perl_magic_clearisa, 0, 0, 0, 0 },
+  { 0, Perl_magic_setisa, 0, 0, 0, 0, 0, 0 },
+  { 0, Perl_magic_setmglob, 0, 0, 0, 0, 0, 0 },
+  { Perl_magic_getnkeys, Perl_magic_setnkeys, 0, 0, 0, 0, 0, 0 },
+  { 0, 0, 0, 0, Perl_magic_freeovrld, 0, 0, 0 },
+  { 0, 0, Perl_magic_sizepack, Perl_magic_wipepack, 0, 0, 0, 0 },
+  { Perl_magic_getpack, Perl_magic_setpack, 0, Perl_magic_clearpack, 0, 0, 0, 0 },
+  { Perl_magic_getpos, Perl_magic_setpos, 0, 0, 0, 0, 0, 0 },
+  { 0, 0, Perl_magic_regdata_cnt, 0, 0, 0, 0, 0 },
+  { Perl_magic_regdatum_get, Perl_magic_regdatum_set, 0, 0, 0, 0, 0, 0 },
+  { 0, Perl_magic_setregexp, 0, 0, 0, 0, 0, 0 },
+#ifndef PERL_MICRO
+  { Perl_magic_getsig, Perl_magic_setsig, 0, Perl_magic_clearsig, 0, 0, 0, 0 },
+#else
+  { 0, 0, 0, 0, 0, 0, 0, 0 },
+#endif
+  { Perl_magic_getsubstr, Perl_magic_setsubstr, 0, 0, 0, 0, 0, 0 },
+  { Perl_magic_get, Perl_magic_set, Perl_magic_len, 0, 0, 0, 0, 0 },
+  { Perl_magic_gettaint, Perl_magic_settaint, 0, 0, 0, 0, 0, 0 },
+  { 0, Perl_magic_setutf8, 0, 0, 0, 0, 0, 0 },
+  { Perl_magic_getuvar, Perl_magic_setuvar, 0, 0, 0, 0, 0, 0 },
+  { Perl_magic_getvec, Perl_magic_setvec, 0, 0, 0, 0, 0, 0 }
+};
+#else
+EXT_MGVTBL PL_magic_vtables[magic_vtable_max];
+#endif
+
+#define want_vtbl_bm want_vtbl_regexp
+#define want_vtbl_fm want_vtbl_regexp
+
+#define PL_vtbl_amagic PL_magic_vtables[want_vtbl_amagic]
+#define PL_vtbl_amagicelem PL_magic_vtables[want_vtbl_amagicelem]
+#define PL_vtbl_arylen PL_magic_vtables[want_vtbl_arylen]
+#define PL_vtbl_arylen_p PL_magic_vtables[want_vtbl_arylen_p]
+#define PL_vtbl_backref PL_magic_vtables[want_vtbl_backref]
+#define PL_vtbl_bm PL_magic_vtables[want_vtbl_bm]
+#define PL_vtbl_collxfrm PL_magic_vtables[want_vtbl_collxfrm]
+#define PL_vtbl_dbline PL_magic_vtables[want_vtbl_dbline]
+#define PL_vtbl_defelem PL_magic_vtables[want_vtbl_defelem]
+#define PL_vtbl_env PL_magic_vtables[want_vtbl_env]
+#define PL_vtbl_envelem PL_magic_vtables[want_vtbl_envelem]
+#define PL_vtbl_fm PL_magic_vtables[want_vtbl_fm]
+#define PL_vtbl_hints PL_magic_vtables[want_vtbl_hints]
+#define PL_vtbl_hintselem PL_magic_vtables[want_vtbl_hintselem]
+#define PL_vtbl_isa PL_magic_vtables[want_vtbl_isa]
+#define PL_vtbl_isaelem PL_magic_vtables[want_vtbl_isaelem]
+#define PL_vtbl_mglob PL_magic_vtables[want_vtbl_mglob]
+#define PL_vtbl_nkeys PL_magic_vtables[want_vtbl_nkeys]
+#define PL_vtbl_ovrld PL_magic_vtables[want_vtbl_ovrld]
+#define PL_vtbl_pack PL_magic_vtables[want_vtbl_pack]
+#define PL_vtbl_packelem PL_magic_vtables[want_vtbl_packelem]
+#define PL_vtbl_pos PL_magic_vtables[want_vtbl_pos]
+#define PL_vtbl_regdata PL_magic_vtables[want_vtbl_regdata]
+#define PL_vtbl_regdatum PL_magic_vtables[want_vtbl_regdatum]
+#define PL_vtbl_regexp PL_magic_vtables[want_vtbl_regexp]
+#define PL_vtbl_sigelem PL_magic_vtables[want_vtbl_sigelem]
+#define PL_vtbl_substr PL_magic_vtables[want_vtbl_substr]
+#define PL_vtbl_sv PL_magic_vtables[want_vtbl_sv]
+#define PL_vtbl_taint PL_magic_vtables[want_vtbl_taint]
+#define PL_vtbl_utf8 PL_magic_vtables[want_vtbl_utf8]
+#define PL_vtbl_uvar PL_magic_vtables[want_vtbl_uvar]
+#define PL_vtbl_vec PL_magic_vtables[want_vtbl_vec]
 
 /* ex: set ro: */