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|
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
/* Changes in 5.7 series mean that now IOK is only set if scalar is
precisely integer but in 5.6 and earlier we need to do a more
complex test */
#if PERL_VERSION <= 6
#define DD_is_integer(sv) (SvIOK(sv) && (SvIsUV(val) ? SvUV(sv) == SvNV(sv) : SvIV(sv) == SvNV(sv)))
#else
#define DD_is_integer(sv) SvIOK(sv)
#endif
static int
is_string0( SV *sv )
{
return SvFLAGS(sv) & (SVf_OK & ~SVf_ROK);
}
static int
is_string( SV *sv )
{
STRLEN len = 0;
if( is_string0(sv) )
{
const char *pv = SvPV(sv, len);
}
return len;
}
static int
is_array( SV *sv )
{
return SvROK(sv) && ( SVt_PVAV == SvTYPE(SvRV(sv) ) );
}
static int
is_hash( SV *sv )
{
return SvROK(sv) && ( SVt_PVHV == SvTYPE(SvRV(sv) ) );
}
static int
is_like( SV *sv, const char *like )
{
int likely = 0;
if( sv_isobject( sv ) )
{
dSP;
int count;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSVsv( sv ) ) );
XPUSHs( sv_2mortal( newSVpv( like, strlen(like) ) ) );
PUTBACK;
if( ( count = call_pv("overload::Method", G_SCALAR) ) )
{
I32 ax;
SPAGAIN;
SP -= count;
ax = (SP - PL_stack_base) + 1;
if( SvTRUE(ST(0)) )
++likely;
}
PUTBACK;
FREETMPS;
LEAVE;
}
return likely;
}
MODULE = Params::Util PACKAGE = Params::Util
void
_STRING(sv)
SV *sv
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(sv) )
mg_get(sv);
if( is_string( sv ) )
{
ST(0) = sv;
XSRETURN(1);
}
XSRETURN_UNDEF;
}
void
_NUMBER(sv)
SV *sv;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(sv) )
mg_get(sv);
if( ( SvIOK(sv) ) || ( SvNOK(sv) ) || ( is_string( sv ) && looks_like_number( sv ) ) )
{
ST(0) = sv;
XSRETURN(1);
}
XSRETURN_UNDEF;
}
void
_SCALAR0(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( SvROK(ref) )
{
if( ( SvTYPE(SvRV(ref)) <= SVt_PVBM ) && !sv_isobject(ref) )
{
ST(0) = ref;
XSRETURN(1);
}
}
XSRETURN_UNDEF;
}
void
_SCALAR(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( SvROK(ref) )
{
svtype tp = SvTYPE(SvRV(ref));
if( ( SvTYPE(SvRV(ref)) <= SVt_PVBM ) && (!sv_isobject(ref)) && is_string( SvRV(ref) ) )
{
ST(0) = ref;
XSRETURN(1);
}
}
XSRETURN_UNDEF;
}
void
_REGEX(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( SvROK(ref) )
{
svtype tp = SvTYPE(SvRV(ref));
#if PERL_VERSION >= 11
if( ( SVt_REGEXP == tp ) )
#else
if( ( SVt_PVMG == tp ) && sv_isobject(ref)
&& ( 0 == strncmp( "Regexp", sv_reftype(SvRV(ref),TRUE),
strlen("Regexp") ) ) )
#endif
{
ST(0) = ref;
XSRETURN(1);
}
}
XSRETURN_UNDEF;
}
void
_ARRAY0(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( is_array(ref) )
{
ST(0) = ref;
XSRETURN(1);
}
XSRETURN_UNDEF;
}
void
_ARRAY(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( is_array(ref) && ( av_len((AV *)(SvRV(ref))) >= 0 ) )
{
ST(0) = ref;
XSRETURN(1);
}
XSRETURN_UNDEF;
}
void
_ARRAYLIKE(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( SvROK(ref) )
{
if( is_array(ref) || is_like( ref, "@{}" ) )
{
ST(0) = ref;
XSRETURN(1);
}
}
XSRETURN_UNDEF;
}
void
_HASH0(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( is_hash(ref) )
{
ST(0) = ref;
XSRETURN(1);
}
XSRETURN_UNDEF;
}
void
_HASH(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( is_hash(ref) && ( HvKEYS(SvRV(ref)) >= 1 ) )
{
ST(0) = ref;
XSRETURN(1);
}
XSRETURN_UNDEF;
}
void
_HASHLIKE(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( SvROK(ref) )
{
if( is_hash(ref) || is_like( ref, "%{}" ) )
{
ST(0) = ref;
XSRETURN(1);
}
}
XSRETURN_UNDEF;
}
void
_CODE(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( SvROK(ref) )
{
if( SVt_PVCV == SvTYPE(SvRV(ref)) )
{
ST(0) = ref;
XSRETURN(1);
}
}
XSRETURN_UNDEF;
}
void
_CODELIKE(ref)
SV *ref;
PROTOTYPE: $
CODE:
{
if( SvMAGICAL(ref) )
mg_get(ref);
if( SvROK(ref) )
{
if( ( SVt_PVCV == SvTYPE(SvRV(ref)) ) || ( is_like(ref, "&{}" ) ) )
{
ST(0) = ref;
XSRETURN(1);
}
}
XSRETURN_UNDEF;
}
void
_INSTANCE(ref,type)
SV *ref;
char *type;
PROTOTYPE: $$
CODE:
{
STRLEN len;
if( SvMAGICAL(ref) )
mg_get(ref);
if( SvROK(ref) && type && ( ( len = strlen(type) ) > 0 ) )
{
if( sv_isobject(ref) )
{
I32 isa_type = 0;
int count;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSVsv( ref ) ) );
XPUSHs( sv_2mortal( newSVpv( type, len ) ) );
PUTBACK;
if( ( count = call_method("isa", G_SCALAR) ) )
{
I32 oldax = ax;
SPAGAIN;
SP -= count;
ax = (SP - PL_stack_base) + 1;
isa_type = SvTRUE(ST(0));
ax = oldax;
}
PUTBACK;
FREETMPS;
LEAVE;
if( isa_type )
{
ST(0) = ref;
XSRETURN(1);
}
}
}
XSRETURN_UNDEF;
}
|
