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/* vi: set ft=c : */
#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
#ifndef gv_fetchmeth_pvs
# define gv_fetchmeth_pvs(stash, name, level, flags) gv_fetchmeth_pvn((stash), ("" name ""), (sizeof(name) - 1), level, 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 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;
}
#define av_push_from_av_inc(dst, src) S_av_push_from_av(aTHX_ dst, src, TRUE)
#define av_push_from_av_noinc(dst, src) S_av_push_from_av(aTHX_ dst, src, FALSE)
static void S_av_push_from_av(pTHX_ AV *dst, AV *src, bool refcnt_inc)
{
SSize_t count = av_count(src);
SSize_t i;
av_extend(dst, av_count(dst) + count - 1);
SV **vals = AvARRAY(src);
for(i = 0; i < count; i++) {
SV *sv = vals[i];
av_push(dst, refcnt_inc ? SvREFCNT_inc(sv) : sv);
}
}
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