# "perlobject.map"  Dean Roehrich, version 19960302
#
# TYPEMAPs
#
# HV *		-> unblessed Perl HV object.
# AV *		-> unblessed Perl AV object.
#
# INPUT/OUTPUT maps
#
# O_*		-> opaque blessed objects
# T_*		-> opaque blessed or unblessed objects
#
# O_OBJECT	-> link an opaque C or C++ object to a blessed Perl object.
# T_OBJECT	-> link an opaque C or C++ object to an unblessed Perl object.
# O_HvRV	-> a blessed Perl HV object.
# T_HvRV	-> an unblessed Perl HV object.
# O_AvRV	-> a blessed Perl AV object.
# T_AvRV	-> an unblessed Perl AV object.

# T_STRING	-> C++ std::string
# O_OBJECT_INHERIT -> inheritance-safe O_OBJECT

TYPEMAP

HV *		T_HvRV
AV *		T_AvRV
string		T_STRING
float		T_NV

######################################################################
OUTPUT

# The Perl object is blessed into 'CLASS', which should be a
# char* having the name of the package for the blessing.
O_OBJECT
	sv_setref_pv( $arg, CLASS, (void*)$var );

T_OBJECT
	sv_setref_pv( $arg, Nullch, (void*)$var );

# Cannot use sv_setref_pv() because that will destroy
# the HV-ness of the object.  Remember that newRV() will increment
# the refcount.
O_HvRV
	$arg = sv_bless( newRV((SV*)$var), gv_stashpv(CLASS,1) );

T_HvRV
	$arg = newRV((SV*)$var);

# Cannot use sv_setref_pv() because that will destroy
# the AV-ness of the object.  Remember that newRV() will increment
# the refcount.
O_AvRV
	$arg = sv_bless( newRV((SV*)$var), gv_stashpv(CLASS,1) );

T_AvRV
	$arg = newRV((SV*)$var);

T_STRING
	$arg = newSVpv($var.c_str(), $var.size());

O_OBJECT_INHERIT
	$arg = sv_bless( newRV_noinc((SV*) PackInheritanceHV($var, newHV())), gv_stashpv(CLASS,1) );

######################################################################
INPUT

O_OBJECT
	if( sv_isobject($arg) && (SvTYPE(SvRV($arg)) == SVt_PVMG) )
		$var = ($type)SvIV((SV*)SvRV( $arg ));
	else{
		warn( \"${Package}::$func_name() -- $var is not a blessed SV reference\" );
		XSRETURN_UNDEF;
	}

T_OBJECT
	if( SvROK($arg) )
		$var = ($type)SvIV((SV*)SvRV( $arg ));
	else{
		warn( \"${Package}::$func_name() -- $var is not an SV reference\" );
		XSRETURN_UNDEF;
	}

O_HvRV
	if( sv_isobject($arg) && (SvTYPE(SvRV($arg)) == SVt_PVHV) )
		$var = (HV*)SvRV( $arg );
	else {
		warn( \"${Package}::$func_name() -- $var is not a blessed HV reference\" );
		XSRETURN_UNDEF;
	}

T_HvRV
	if( SvROK($arg) && (SvTYPE(SvRV($arg)) == SVt_PVHV) )
		$var = (HV*)SvRV( $arg );
	else {
		warn( \"${Package}::$func_name() -- $var is not an HV reference\" );
		XSRETURN_UNDEF;
	}

O_AvRV
	if( sv_isobject($arg) && (SvTYPE(SvRV($arg)) == SVt_PVAV) )
		$var = (AV*)SvRV( $arg );
	else {
		warn( \"${Package}::$func_name() -- $var is not a blessed AV reference\" );
		XSRETURN_UNDEF;
	}

T_AvRV
	if( SvROK($arg) && (SvTYPE(SvRV($arg)) == SVt_PVAV) )
		$var = (AV*)SvRV( $arg );
	else {
		warn( \"${Package}::$func_name() -- $var is not an AV reference\" );
		XSRETURN_UNDEF;
	}

T_STRING
	{
		STRLEN len;
		const char *str = SvPV($arg, len);
		$var = std::string(str, len);
	}

O_OBJECT_INHERIT
	if( sv_isobject($arg) && (SvTYPE(SvRV($arg)) == SVt_PVHV) ) {
		SV** object_inherit_fetched_sv = hv_fetch((HV*) SvRV($arg),
			\"$type\", sizeof(\"$type\") - 1, 0);
		if(!object_inherit_fetched_sv) {
			warn( \"Can't find pointer of type $type\"
				\" in blessed HV $var\" );
			XSRETURN_UNDEF;
		}
		$var = ($type)SvIV(*object_inherit_fetched_sv);
	}
	else{
		warn( \"${Package}::$func_name() -- $var is not\"
			 \" a blessed HV reference\" );
		XSRETURN_UNDEF;
	}