ext/Devel/PPPort/parts/inc/misc

################################################################################
##
##  $Revision: 30 $
##  $Author: mhx $
##  $Date: 2006/01/14 18:08:03 +0100 $
##
################################################################################
##
##  Version 3.x, Copyright (C) 2004-2006, Marcus Holland-Moritz.
##  Version 2.x, Copyright (C) 2001, Paul Marquess.
##  Version 1.x, Copyright (C) 1999, Kenneth Albanowski.
##
##  This program is free software; you can redistribute it and/or
##  modify it under the same terms as Perl itself.
##
################################################################################

=provides

__UNDEFINED__
PERL_UNUSED_DECL
PERL_GCC_BRACE_GROUPS_FORBIDDEN
NVTYPE
INT2PTR
PTRV
NUM2PTR
PTR2IV
PTR2UV
PTR2NV
PTR2ul
START_EXTERN_C
END_EXTERN_C
EXTERN_C
STMT_START
STMT_END
XSRETURN
/PL_\w+/

=implementation

#if { VERSION <= 5.004_05 }
/* Replace: 1 */
#  define PL_DBsingle               DBsingle
#  define PL_DBsub                  DBsub
#  define PL_Sv                     Sv
#  define PL_compiling              compiling
#  define PL_copline                copline
#  define PL_curcop                 curcop
#  define PL_curstash               curstash
#  define PL_debstash               debstash
#  define PL_defgv                  defgv
#  define PL_diehook                diehook
#  define PL_dirty                  dirty
#  define PL_dowarn                 dowarn
#  define PL_errgv                  errgv
#  define PL_hexdigit               hexdigit
#  define PL_hints                  hints
#  define PL_na	                    na
#  define PL_no_modify              no_modify
#  define PL_perl_destruct_level    perl_destruct_level
#  define PL_perldb                 perldb
#  define PL_ppaddr                 ppaddr
#  define PL_rsfp_filters           rsfp_filters
#  define PL_rsfp                   rsfp
#  define PL_stack_base             stack_base
#  define PL_stack_sp               stack_sp
#  define PL_stdingv                stdingv
#  define PL_sv_arenaroot           sv_arenaroot
#  define PL_sv_no                  sv_no
#  define PL_sv_undef               sv_undef
#  define PL_sv_yes                 sv_yes
#  define PL_tainted                tainted
#  define PL_tainting               tainting
/* Replace: 0 */
#endif

#ifndef PERL_UNUSED_DECL
#  ifdef HASATTRIBUTE
#    if (defined(__GNUC__) && defined(__cplusplus)) || defined(__INTEL_COMPILER)
#      define PERL_UNUSED_DECL
#    else
#      define PERL_UNUSED_DECL __attribute__((unused))
#    endif
#  else
#    define PERL_UNUSED_DECL
#  endif
#endif

__UNDEFINED__  NOOP          (void)0
__UNDEFINED__  dNOOP         extern int Perl___notused PERL_UNUSED_DECL

#ifndef NVTYPE
#  if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
#    define NVTYPE long double
#  else
#    define NVTYPE double
#  endif
typedef NVTYPE NV;
#endif

#ifndef INT2PTR

#  if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
#    define PTRV                  UV
#    define INT2PTR(any,d)        (any)(d)
#  else
#    if PTRSIZE == LONGSIZE
#      define PTRV                unsigned long
#    else
#      define PTRV                unsigned
#    endif
#    define INT2PTR(any,d)        (any)(PTRV)(d)
#  endif

#  define NUM2PTR(any,d)  (any)(PTRV)(d)
#  define PTR2IV(p)       INT2PTR(IV,p)
#  define PTR2UV(p)       INT2PTR(UV,p)
#  define PTR2NV(p)       NUM2PTR(NV,p)

#  if PTRSIZE == LONGSIZE
#    define PTR2ul(p)     (unsigned long)(p)
#  else
#    define PTR2ul(p)     INT2PTR(unsigned long,p)
#  endif

#endif /* !INT2PTR */

#undef START_EXTERN_C
#undef END_EXTERN_C
#undef EXTERN_C
#ifdef __cplusplus
#  define START_EXTERN_C extern "C" {
#  define END_EXTERN_C }
#  define EXTERN_C extern "C"
#else
#  define START_EXTERN_C
#  define END_EXTERN_C
#  define EXTERN_C extern
#endif

#ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
#  if defined(__STRICT_ANSI__) && defined(PERL_GCC_PEDANTIC)
#    define PERL_GCC_BRACE_GROUPS_FORBIDDEN
#  endif
#endif

#undef STMT_START
#undef STMT_END
#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
#  define STMT_START	(void)(	/* gcc supports ``({ STATEMENTS; })'' */
#  define STMT_END	)
#else
#  if defined(VOIDFLAGS) && (VOIDFLAGS) && (defined(sun) || defined(__sun__)) && !defined(__GNUC__)
#    define STMT_START	if (1)
#    define STMT_END	else (void)0
#  else
#    define STMT_START	do
#    define STMT_END	while (0)
#  endif
#endif

__UNDEFINED__  boolSV(b)    ((b) ? &PL_sv_yes : &PL_sv_no)

/* DEFSV appears first in 5.004_56 */
__UNDEFINED__  DEFSV	    GvSV(PL_defgv)
__UNDEFINED__  SAVE_DEFSV   SAVESPTR(GvSV(PL_defgv))

/* Older perls (<=5.003) lack AvFILLp */
__UNDEFINED__  AvFILLp      AvFILL

__UNDEFINED__  ERRSV        get_sv("@",FALSE)

__UNDEFINED__  newSVpvn(data,len)  ((data)                                              \
                                    ? ((len) ? newSVpv((data), (len)) : newSVpv("", 0)) \
                                    : newSV(0))

/* Hint: gv_stashpvn
 * This function's backport doesn't support the length parameter, but
 * rather ignores it. Portability can only be ensured if the length
 * parameter is used for speed reasons, but the length can always be
 * correctly computed from the string argument.
 */

__UNDEFINED__  gv_stashpvn(str,len,create)  gv_stashpv(str,create)

/* Replace: 1 */
__UNDEFINED__  get_cv          perl_get_cv
__UNDEFINED__  get_sv          perl_get_sv
__UNDEFINED__  get_av          perl_get_av
__UNDEFINED__  get_hv          perl_get_hv
/* Replace: 0 */

__UNDEFINED__  dUNDERBAR       dNOOP
__UNDEFINED__  UNDERBAR        DEFSV

__UNDEFINED__  dAX             I32 ax = MARK - PL_stack_base + 1
__UNDEFINED__  dITEMS          I32 items = SP - MARK

__UNDEFINED__  dXSTARG         SV * targ = sv_newmortal()

__UNDEFINED__  dAXMARK         I32 ax = POPMARK; \
                               register SV ** const mark = PL_stack_base + ax++


__UNDEFINED__  XSprePUSH       (sp = PL_stack_base + ax - 1)

#if { VERSION < 5.005 }
#  undef XSRETURN
#  define XSRETURN(off)                                   \
      STMT_START {                                        \
          PL_stack_sp = PL_stack_base + ax + ((off) - 1); \
          return;                                         \
      } STMT_END
#endif

=xsmisc

XS(XS_Devel__PPPort_dXSTARG);  /* prototype */
XS(XS_Devel__PPPort_dXSTARG)
{
  dXSARGS;
  dXSTARG;
  IV iv;
  SP -= items;
  iv = SvIV(ST(0)) + 1;
  PUSHi(iv);
  XSRETURN(1);
}

XS(XS_Devel__PPPort_dAXMARK);  /* prototype */
XS(XS_Devel__PPPort_dAXMARK)
{
  dSP;
  dAXMARK;
  dITEMS;
  IV iv;
  SP -= items;
  iv = SvIV(ST(0)) - 1;
  PUSHs(sv_2mortal(newSViv(iv)));
  XSRETURN(1);
}

=xsboot

newXS("Devel::PPPort::dXSTARG", XS_Devel__PPPort_dXSTARG, file);
newXS("Devel::PPPort::dAXMARK", XS_Devel__PPPort_dAXMARK, file);

=xsubs

int
gv_stashpvn(name, create)
	char *name
	I32 create
	CODE:
		RETVAL = gv_stashpvn(name, strlen(name), create) != NULL;
	OUTPUT:
		RETVAL

int
get_sv(name, create)
	char *name
	I32 create
	CODE:
		RETVAL = get_sv(name, create) != NULL;
	OUTPUT:
		RETVAL

int
get_av(name, create)
	char *name
	I32 create
	CODE:
		RETVAL = get_av(name, create) != NULL;
	OUTPUT:
		RETVAL

int
get_hv(name, create)
	char *name
	I32 create
	CODE:
		RETVAL = get_hv(name, create) != NULL;
	OUTPUT:
		RETVAL

int
get_cv(name, create)
	char *name
	I32 create
	CODE:
		RETVAL = get_cv(name, create) != NULL;
	OUTPUT:
		RETVAL

void
newSVpvn()
	PPCODE:
		XPUSHs(newSVpvn("test", 4));
		XPUSHs(newSVpvn("test", 2));
		XPUSHs(newSVpvn("test", 0));
		XPUSHs(newSVpvn(NULL, 2));
		XPUSHs(newSVpvn(NULL, 0));
		XSRETURN(5);

void
xsreturn(two)
	int two
	PPCODE:
		XPUSHs(newSVpvn("test1", 5));
		if (two)
		  XPUSHs(newSVpvn("test2", 5));
		if (two)
		  XSRETURN(2);
		else
		  XSRETURN(1);

SV *
PL_sv_undef()
	CODE:
		RETVAL = newSVsv(&PL_sv_undef);
	OUTPUT:
		RETVAL

SV *
PL_sv_yes()
	CODE:
		RETVAL = newSVsv(&PL_sv_yes);
	OUTPUT:
		RETVAL

SV *
PL_sv_no()
	CODE:
		RETVAL = newSVsv(&PL_sv_no);
	OUTPUT:
		RETVAL

int
PL_na(string)
	char *string
	CODE:
		PL_na = strlen(string);
		RETVAL = PL_na;
	OUTPUT:
		RETVAL

SV*
boolSV(value)
	int value
	CODE:
		RETVAL = newSVsv(boolSV(value));
	OUTPUT:
		RETVAL

SV*
DEFSV()
	CODE:
		RETVAL = newSVsv(DEFSV);
	OUTPUT:
		RETVAL

int
ERRSV()
	CODE:
		RETVAL = SvTRUE(ERRSV);
	OUTPUT:
		RETVAL

SV*
UNDERBAR()
	CODE:
		{
		  dUNDERBAR;
		  RETVAL = newSVsv(UNDERBAR);
		}
	OUTPUT:
		RETVAL

void
prepush()
	CODE:
		{
		  dXSTARG;
		  XSprePUSH;
		  PUSHi(42);
		  XSRETURN(1);
		}

=tests plan => 38

use vars qw($my_sv @my_av %my_hv);

my @s = &Devel::PPPort::newSVpvn();
ok(@s == 5);
ok($s[0], "test");
ok($s[1], "te");
ok($s[2], "");
ok(!defined($s[3]));
ok(!defined($s[4]));

ok(!defined(&Devel::PPPort::PL_sv_undef()));
ok(&Devel::PPPort::PL_sv_yes());
ok(!&Devel::PPPort::PL_sv_no());
ok(&Devel::PPPort::PL_na("abcd"), 4);

ok(&Devel::PPPort::boolSV(1));
ok(!&Devel::PPPort::boolSV(0));

$_ = "Fred";
ok(&Devel::PPPort::DEFSV(), "Fred");
ok(&Devel::PPPort::UNDERBAR(), "Fred");

if ($] >= 5.009002) {
  eval q{
    my $_ = "Tony";
    ok(&Devel::PPPort::DEFSV(), "Fred");
    ok(&Devel::PPPort::UNDERBAR(), "Tony");
  };
}
else {
  ok(1);
  ok(1);
}

eval { 1 };
ok(!&Devel::PPPort::ERRSV());
eval { cannot_call_this_one() };
ok(&Devel::PPPort::ERRSV());

ok(&Devel::PPPort::gv_stashpvn('Devel::PPPort', 0));
ok(!&Devel::PPPort::gv_stashpvn('does::not::exist', 0));
ok(&Devel::PPPort::gv_stashpvn('does::not::exist', 1));

$my_sv = 1;
ok(&Devel::PPPort::get_sv('my_sv', 0));
ok(!&Devel::PPPort::get_sv('not_my_sv', 0));
ok(&Devel::PPPort::get_sv('not_my_sv', 1));

@my_av = (1);
ok(&Devel::PPPort::get_av('my_av', 0));
ok(!&Devel::PPPort::get_av('not_my_av', 0));
ok(&Devel::PPPort::get_av('not_my_av', 1));

%my_hv = (a=>1);
ok(&Devel::PPPort::get_hv('my_hv', 0));
ok(!&Devel::PPPort::get_hv('not_my_hv', 0));
ok(&Devel::PPPort::get_hv('not_my_hv', 1));

sub my_cv { 1 };
ok(&Devel::PPPort::get_cv('my_cv', 0));
ok(!&Devel::PPPort::get_cv('not_my_cv', 0));
ok(&Devel::PPPort::get_cv('not_my_cv', 1));

ok(Devel::PPPort::dXSTARG(42), 43);
ok(Devel::PPPort::dAXMARK(4711), 4710);

ok(Devel::PPPort::prepush(), 42);

ok(join(':', Devel::PPPort::xsreturn(0)), 'test1');
ok(join(':', Devel::PPPort::xsreturn(1)), 'test1:test2');
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