Re: [Vala] Delegate on struct

Nicolas HENRY Wed, 07 Jul 2010 17:06:10 -0700

Line 113 :

        t.my_struct_func = (_tmp0_ = __lambda0__my_delegate_func,
((t.my_struct_func_target_destroy_notify == NULL) ? NULL :
(t.my_struct_func_target_destroy_notify (t.my_struct_func_target),
NULL), t.my_struct_func = NULL, t.my_struct_func_target = NULL,
t.my_struct_func_target_destroy_notify = NULL), t.my_struct_func_target
= block1_data_ref (_data1_), t.my_struct_func_target_destroy_notify =
block1_data_unref, _tmp0_);


test.c :

/* test.c generated by valac, the Vala compiler
 * generated from test.vala, do not modify */


#include <glib.h>
#include <glib-object.h>
#include <stdlib.h>
#include <string.h>


#define TYPE_MY_STRUCT (my_struct_get_type ())
typedef struct _MyStruct MyStruct;
#define _g_free0(var) (var = (g_free (var), NULL))
typedef struct _Block1Data Block1Data;

typedef void (*myDelegateFunc) (void* user_data);
struct _MyStruct {
        myDelegateFunc my_struct_func;
        gpointer my_struct_func_target;
        GDestroyNotify my_struct_func_target_destroy_notify;
};

struct _Block1Data {
        int _ref_count_;
        char* a;
};



GType my_struct_get_type (void);
MyStruct* my_struct_dup (const MyStruct* self);
void my_struct_free (MyStruct* self);
void my_struct_copy (const MyStruct* self, MyStruct* dest);
void my_struct_destroy (MyStruct* self);
static void _lambda0_ (Block1Data* _data1_);
static void __lambda0__my_delegate_func (gpointer self);
static Block1Data* block1_data_ref (Block1Data* _data1_);
static void block1_data_unref (Block1Data* _data1_);
void _vala_main (void);



void my_struct_copy (const MyStruct* self, MyStruct* dest) {
        dest->my_struct_func = self->my_struct_func;
}


void my_struct_destroy (MyStruct* self) {
        ((*self).my_struct_func_target_destroy_notify == NULL) ? NULL :
((*self).my_struct_func_target_destroy_notify
((*self).my_struct_func_target), NULL);
        self->my_struct_func = NULL;
        (*self).my_struct_func_target = NULL;
        (*self).my_struct_func_target_destroy_notify = NULL;
}


MyStruct* my_struct_dup (const MyStruct* self) {
        MyStruct* dup;
        dup = g_new0 (MyStruct, 1);
        my_struct_copy (self, dup);
        return dup;
}


void my_struct_free (MyStruct* self) {
        my_struct_destroy (self);
        g_free (self);
}


GType my_struct_get_type (void) {
        static volatile gsize my_struct_type_id__volatile = 0;
        if (g_once_init_enter (&my_struct_type_id__volatile)) {
                GType my_struct_type_id;
                my_struct_type_id = g_boxed_type_register_static ("MyStruct",
(GBoxedCopyFunc) my_struct_dup, (GBoxedFreeFunc) my_struct_free);
                g_once_init_leave (&my_struct_type_id__volatile, 
my_struct_type_id);
        }
        return my_struct_type_id__volatile;
}


static void _lambda0_ (Block1Data* _data1_) {
        g_print ("%s", _data1_->a);
}


static void __lambda0__my_delegate_func (gpointer self) {
        _lambda0_ (self);
}


static Block1Data* block1_data_ref (Block1Data* _data1_) {
        ++_data1_->_ref_count_;
        return _data1_;
}


static void block1_data_unref (Block1Data* _data1_) {
        if ((--_data1_->_ref_count_) == 0) {
                _g_free0 (_data1_->a);
                g_slice_free (Block1Data, _data1_);
        }
}


void _vala_main (void) {
        Block1Data* _data1_;
        MyStruct t = {0};
        myDelegateFunc _tmp0_;
        _data1_ = g_slice_new0 (Block1Data);
        _data1_->_ref_count_ = 1;
        _data1_->a = g_strdup ("test");
        memset (&t, 0, sizeof (MyStruct));
        t.my_struct_func = (_tmp0_ = __lambda0__my_delegate_func,
((t.my_struct_func_target_destroy_notify == NULL) ? NULL :
(t.my_struct_func_target_destroy_notify (t.my_struct_func_target),
NULL), t.my_struct_func = NULL, t.my_struct_func_target = NULL,
t.my_struct_func_target_destroy_notify = NULL), t.my_struct_func_target
= block1_data_ref (_data1_), t.my_struct_func_target_destroy_notify =
block1_data_unref, _tmp0_);
        t.my_struct_func (t.my_struct_func_target);
        my_struct_destroy (&t);
        block1_data_unref (_data1_);
}


int main (int argc, char ** argv) {
        g_type_init ();
        _vala_main ();
        return 0;
}





Le jeudi 08 juillet 2010 à 00:29 +0100, Harry Van Haaren a écrit :
> Hey Nicolas,
> 
> Any chance you'd compile with   valac --save-temps  <your files etc
> here>?
> And then maybe post line 113 from your test.c file so we can see
> what's really going on there?
> 
> Cheers, -Harry
> 
> On Thu, Jul 8, 2010 at 12:14 AM, Nicolas HENRY <ice...@gmail.com>
> wrote:
>         Hello,
>         
>         I don't understand why this code produce a warning (vala
>         0.9.2) :
>         
>         public delegate void myDelegateFunc();
>         
>         struct MyStruct {
>                public myDelegateFunc my_struct_func;
>         }
>         
>         void main(){
>                string a = "test";
>                var t = MyStruct();
>                t.my_struct_func = () => {
>                        print(a);
>                };
>                t.my_struct_func();
>         }
>         
>         .../test.vala.c: In function ‘_vala_main’:
>         .../test.vala.c:113: warning: assignment from incompatible
>         pointer type
>         
>         Thanks.
>         
>         
>         _______________________________________________
>         vala-list mailing list
>         vala-list@gnome.org
>         http://mail.gnome.org/mailman/listinfo/vala-list
> 

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Re: [Vala] Delegate on struct

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