libsyntax-keyword-try-perl/hax/perl-additions.c.inc

264 lines
7.3 KiB
C

/* vi: set ft=c : */
#ifndef av_count
# define av_count(av) (AvFILL(av) + 1)
#endif
#if HAVE_PERL_VERSION(5, 22, 0)
# define PadnameIsNULL(pn) (!(pn))
#else
# define PadnameIsNULL(pn) (!(pn) || (pn) == &PL_sv_undef)
#endif
#ifndef hv_deletes
# define hv_deletes(hv, skey, flags) hv_delete((hv), ("" skey ""), (sizeof(skey) - 1), flags)
#endif
#if HAVE_PERL_VERSION(5, 22, 0)
# define PadnameOUTER_off(pn) (PadnameFLAGS(pn) &= ~PADNAMEt_OUTER)
#else
/* PadnameOUTER is really the SvFAKE flag */
# define PadnameOUTER_off(pn) SvFAKE_off(pn)
#endif
#define save_strndup(s, l) S_save_strndup(aTHX_ s, l)
static char *S_save_strndup(pTHX_ char *s, STRLEN l)
{
/* savepvn doesn't put anything on the save stack, despite its name */
char *ret = savepvn(s, l);
SAVEFREEPV(ret);
return ret;
}
#define sv_setrv(s, r) S_sv_setrv(aTHX_ s, r)
static void S_sv_setrv(pTHX_ SV *sv, SV *rv)
{
sv_setiv(sv, (IV)rv);
#if !HAVE_PERL_VERSION(5, 24, 0)
SvIOK_off(sv);
#endif
SvROK_on(sv);
}
static char *PL_savetype_name[] PERL_UNUSED_DECL = {
/* These have been present since 5.16 */
[SAVEt_ADELETE] = "ADELETE",
[SAVEt_AELEM] = "AELEM",
[SAVEt_ALLOC] = "ALLOC",
[SAVEt_APTR] = "APTR",
[SAVEt_AV] = "AV",
[SAVEt_BOOL] = "BOOL",
[SAVEt_CLEARSV] = "CLEARSV",
[SAVEt_COMPILE_WARNINGS] = "COMPILE_WARNINGS",
[SAVEt_COMPPAD] = "COMPPAD",
[SAVEt_DELETE] = "DELETE",
[SAVEt_DESTRUCTOR] = "DESTRUCTOR",
[SAVEt_DESTRUCTOR_X] = "DESTRUCTOR_X",
[SAVEt_FREECOPHH] = "FREECOPHH",
[SAVEt_FREEOP] = "FREEOP",
[SAVEt_FREEPV] = "FREEPV",
[SAVEt_FREESV] = "FREESV",
[SAVEt_GENERIC_PVREF] = "GENERIC_PVREF",
[SAVEt_GENERIC_SVREF] = "GENERIC_SVREF",
[SAVEt_GP] = "GP",
[SAVEt_GVSV] = "GVSV",
[SAVEt_HELEM] = "HELEM",
[SAVEt_HINTS] = "HINTS",
[SAVEt_HPTR] = "HPTR",
[SAVEt_HV] = "HV",
[SAVEt_I16] = "I16",
[SAVEt_I32] = "I32",
[SAVEt_I32_SMALL] = "I32_SMALL",
[SAVEt_I8] = "I8",
[SAVEt_INT] = "INT",
[SAVEt_INT_SMALL] = "INT_SMALL",
[SAVEt_ITEM] = "ITEM",
[SAVEt_IV] = "IV",
[SAVEt_LONG] = "LONG",
[SAVEt_MORTALIZESV] = "MORTALIZESV",
[SAVEt_NSTAB] = "NSTAB",
[SAVEt_OP] = "OP",
[SAVEt_PADSV_AND_MORTALIZE] = "PADSV_AND_MORTALIZE",
[SAVEt_PARSER] = "PARSER",
[SAVEt_PPTR] = "PPTR",
[SAVEt_REGCONTEXT] = "REGCONTEXT",
[SAVEt_SAVESWITCHSTACK] = "SAVESWITCHSTACK",
[SAVEt_SET_SVFLAGS] = "SET_SVFLAGS",
[SAVEt_SHARED_PVREF] = "SHARED_PVREF",
[SAVEt_SPTR] = "SPTR",
[SAVEt_STACK_POS] = "STACK_POS",
[SAVEt_SVREF] = "SVREF",
[SAVEt_SV] = "SV",
[SAVEt_VPTR] = "VPTR",
#if HAVE_PERL_VERSION(5,18,0)
[SAVEt_CLEARPADRANGE] = "CLEARPADRANGE",
[SAVEt_GVSLOT] = "GVSLOT",
#endif
#if HAVE_PERL_VERSION(5,20,0)
[SAVEt_READONLY_OFF] = "READONLY_OFF",
[SAVEt_STRLEN] = "STRLEN",
#endif
#if HAVE_PERL_VERSION(5,22,0)
[SAVEt_FREEPADNAME] = "FREEPADNAME",
#endif
#if HAVE_PERL_VERSION(5,24,0)
[SAVEt_TMPSFLOOR] = "TMPSFLOOR",
#endif
#if HAVE_PERL_VERSION(5,34,0)
[SAVEt_STRLEN_SMALL] = "STRLEN_SMALL",
[SAVEt_HINTS_HH] = "HINTS_HH",
#endif
};
#define dKWARG(count) \
U32 kwargi = count; \
U32 kwarg; \
SV *kwval; \
/* TODO: complain about odd number of args */
#define KWARG_NEXT(args) \
S_kwarg_next(aTHX_ args, &kwargi, items, ax, &kwarg, &kwval)
static bool S_kwarg_next(pTHX_ const char *args[], U32 *kwargi, U32 argc, U32 ax, U32 *kwarg, SV **kwval)
{
if(*kwargi >= argc)
return FALSE;
SV *argname = ST(*kwargi); (*kwargi)++;
if(!SvOK(argname))
croak("Expected string for next argument name, got undef");
*kwarg = 0;
while(args[*kwarg]) {
if(strEQ(SvPV_nolen(argname), args[*kwarg])) {
*kwval = ST(*kwargi); (*kwargi)++;
return TRUE;
}
(*kwarg)++;
}
croak("Unrecognised argument name '%" SVf "'", SVfARG(argname));
}
#define import_pragma(pragma, arg) S_import_pragma(aTHX_ pragma, arg)
static void S_import_pragma(pTHX_ const char *pragma, const char *arg)
{
dSP;
bool unimport = FALSE;
if(pragma[0] == '-') {
unimport = TRUE;
pragma++;
}
SAVETMPS;
EXTEND(SP, 2);
PUSHMARK(SP);
mPUSHp(pragma, strlen(pragma));
if(arg)
mPUSHp(arg, strlen(arg));
PUTBACK;
call_method(unimport ? "unimport" : "import", G_VOID);
FREETMPS;
}
#define ensure_module_version(module, version) S_ensure_module_version(aTHX_ module, version)
static void S_ensure_module_version(pTHX_ SV *module, SV *version)
{
dSP;
ENTER;
PUSHMARK(SP);
PUSHs(module);
PUSHs(version);
PUTBACK;
call_method("VERSION", G_VOID);
LEAVE;
}
#if HAVE_PERL_VERSION(5, 16, 0)
/* TODO: perl 5.14 lacks HvNAMEUTF8, gv_fetchmeth_pvn() */
# define fetch_superclass_method_pv(stash, pv, len, level) S_fetch_superclass_method_pv(aTHX_ stash, pv, len, level)
static CV *S_fetch_superclass_method_pv(pTHX_ HV *stash, const char *pv, STRLEN len, U32 level)
{
# if HAVE_PERL_VERSION(5, 18, 0)
GV *gv = gv_fetchmeth_pvn(stash, pv, len, level, GV_SUPER);
# else
SV *superclassname = newSVpvf("%*s::SUPER", HvNAMELEN_get(stash), HvNAME_get(stash));
if(HvNAMEUTF8(stash))
SvUTF8_on(superclassname);
SAVEFREESV(superclassname);
HV *superstash = gv_stashsv(superclassname, GV_ADD);
GV *gv = gv_fetchmeth_pvn(superstash, pv, len, level, 0);
# endif
if(!gv)
return NULL;
return GvCV(gv);
}
#endif /* HAVE_PERL_VERSION(5, 16, 0) */
#define get_class_isa(stash) S_get_class_isa(aTHX_ stash)
static AV *S_get_class_isa(pTHX_ HV *stash)
{
GV **gvp = (GV **)hv_fetchs(stash, "ISA", 0);
if(!gvp || !GvAV(*gvp))
croak("Expected %s to have a @ISA list", HvNAME(stash));
return GvAV(*gvp);
}
#define find_cop_for_lvintro(padix, o, copp) S_find_cop_for_lvintro(aTHX_ padix, o, copp)
static COP *S_find_cop_for_lvintro(pTHX_ PADOFFSET padix, OP *o, COP **copp)
{
for( ; o; o = OpSIBLING(o)) {
if(OP_CLASS(o) == OA_COP) {
*copp = (COP *)o;
}
else if(o->op_type == OP_PADSV && o->op_targ == padix && o->op_private & OPpLVAL_INTRO) {
return *copp;
}
else if(o->op_flags & OPf_KIDS) {
COP *ret = find_cop_for_lvintro(padix, cUNOPx(o)->op_first, copp);
if(ret)
return ret;
}
}
return NULL;
}
#define lex_consume_unichar(c) MY_lex_consume_unichar(aTHX_ c)
static bool MY_lex_consume_unichar(pTHX_ U32 c)
{
if(lex_peek_unichar(0) != c)
return FALSE;
lex_read_unichar(0);
return TRUE;
}
#if HAVE_PERL_VERSION(5, 16, 0)
/* TODO: perl 5.14 lacks HvNAMEUTF8, HvNAMELEN, sv_derived_from_pvn */
# define sv_derived_from_hv(sv, hv) MY_sv_derived_from_hv(aTHX_ sv, hv)
static bool MY_sv_derived_from_hv(pTHX_ SV *sv, HV *hv)
{
char *hvname = HvNAME(hv);
if(!hvname)
return FALSE;
return sv_derived_from_pvn(sv, hvname, HvNAMELEN(hv), HvNAMEUTF8(hv) ? SVf_UTF8 : 0);
}
#endif /* HAVE_PERL_VERSION(5, 16, 0) */