comment on

Part of the attraction of Ken's rewrite is that it seems to lend itself more readily to typemapping(as regards the OUTPUT section of the typemap)

That's only marginally true. Using Ken's rewrite, the typemap OUTPUT consists of one line of code. Sticking with the original version of Soldier::new(), five lines of OUTPUT code are required.

For anyone who wants to <readmore>, below my sig is a version of the script that I originally posted, modified to use either of the typemaps (which are also presented below).

I still haven't found an answer to either question 1) or 2) in my op.

Cheers,
Rob

The script:

use Devel::Peek;

my $obj1 = Soldier->new('Benjamin', 'Private', 11111);
my $obj2 = Soldier->new('Sanders', 'Colonel', 22222);
my $obj3 = Soldier->new('Matt', 'Sergeant', 33333);
    
for my $obj ($obj1, $obj2, $obj3) {
    print ($obj->get_serial, ") ", 
           $obj->get_name, " is a ", 
           $obj->get_rank, "\n");
} 

Dump($obj1);
print "\n";
 
package Soldier;

use Inline C => Config =>
    TYPEMAPS => './typemap',
    BUILD_NOISY => 1;
    
use Inline C => <<'END';
    
typedef struct {
  char* name;
  char* rank;
  long  serial;
  } Soldier;
 

   
Soldier * new(char* class, char* name, char* rank, long serial) {
    Soldier* soldier;
    New(42, soldier, 1, Soldier);

    soldier->name = savepv(name);
    soldier->rank = savepv(rank);
    soldier->serial = serial;

    return soldier;
}
 
   
char* get_name(Soldier * obj) {
      return obj->name;
}
    
char* get_rank(Soldier * obj) {
      return obj->rank;
}
    
long get_serial(Soldier * obj) {
     return obj->serial;
}

void DESTROY(Soldier* obj) {
     Safefree(obj->name);
     Safefree(obj->rank);
     Safefree(obj);
}

END
[download]

The typemap that preserves the READONLY flag:

Soldier *    SOLDIER

INPUT
SOLDIER
        $var = INT2PTR($type, SvIV(SvRV($arg)))

OUTPUT
SOLDIER
        $arg     = newSViv(0);
        SV * obj = newSVrv($arg, \"Soldier\");

        sv_setiv(obj, (IV)$var);
        SvREADONLY_on(obj);
        $arg;
[download]

The typemap that dispenses with the READONLY flag:

Soldier *    SOLDIER

INPUT
SOLDIER
        $var = INT2PTR($type, SvIV(SvRV($arg)))

OUTPUT
SOLDIER
    sv_setref_pv($arg, \"Soldier\", (void*)$var);
[download]

In reply to Re: Inline::C-Cookbook's "Object Oriented Inline" by syphilis
in thread Inline::C-Cookbook's "Object Oriented Inline" by syphilis

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