add picrin/proc.h

include/picrin/proc.h

@@ -0,0 +1,14 @@
+#ifndef PROC_H__
+#define PROC_H__
+
+struct pic_proc {
+  PIC_OBJECT_HEADER
+  union {
+    pic_value (*cfunc)(pic_state *);
+    struct pic_irep *irep;
+  } u;
+};
+
+#define pic_proc_ptr(o) ((struct pic_proc *)o.u.data)
+
+#endif

include/picrin/value.h

@@ -45,17 +45,11 @@ struct pic_symbol {
   char *name;
 };
 
-struct pic_proc {
+struct pic_proc;
-  PIC_OBJECT_HEADER
-  union {
-    struct pic_irep *irep;
-  } u;
-};
 
 #define pic_object_ptr(o) ((struct pic_object *)o.u.data)
 #define pic_pair_ptr(o) ((struct pic_pair *)o.u.data)
 #define pic_symbol_ptr(o) ((struct pic_symbol *)o.u.data)
-#define pic_proc_ptr(o) ((struct pic_proc *)o.u.data)
 
 enum pic_tt pic_type(pic_value);
 

src/gc.c

@@ -3,6 +3,7 @@
 #include "picrin.h"
 #include "picrin/gc.h"
 #include "picrin/irep.h"
+#include "picrin/proc.h"
 
 #if GC_DEBUG
 # include <stdio.h>

src/write.c

@@ -2,6 +2,7 @@
 #include <stdlib.h>
 
 #include "picrin.h"
+#include "picrin/proc.h"
 
 void
 pic_debug(pic_state *pic, pic_value obj)