pg: Statement preparing + inspection; less wonky object handling?

c/common.c

@@ -1,3 +1,14 @@
+/* Because I don't know how to use sv_setref_pv() correctly. */
+
+static SV *fupg_selfobj_(pTHX_ SV **self, void *obj, const char *klass) {
+    *self = newSViv(PTR2IV(obj));
+    return sv_bless(sv_2mortal(newRV_noinc(*self)), gv_stashpv(klass, GV_ADD));
+}
+/* Write a blessed SV to obj->self and returns a mortal ref to it */
+#define fupg_selfobj(obj, klass) fupg_selfobj_(aTHX_ &((obj)->self), obj, klass)
+
+
+
 /* Custom string builder, should be slightly faster than using Sv* macros directly. */
 
 typedef struct {