Use Py_VISIT in all tp_traverse methods, instead of traversing manually or

using a custom, nearly-identical macro. This probably changes how some of
these functions are compiled, which may result in fractionally slower (or
faster) execution. Considering the nature of traversal, visiting much of the
address space in unpredictable patterns, I'd argue the code readability and
maintainability is well worth it ;P

1 files changed, 17 insertions, 34 deletions

diff --git a/Modules/cPickle.c b/Modules/cPickle.c
index 1d99fcb..18df599 100644
--- a/Modules/cPickle.c
+++ b/Modules/cPickle.c
@@ -2909,22 +2909,14 @@ Pickler_dealloc(Picklerobject *self)
 static int
 Pickler_traverse(Picklerobject *self, visitproc visit, void *arg)
 {
-	int err;
-#define VISIT(SLOT) \
-	if (SLOT) { \
-		err = visit((PyObject *)(SLOT), arg); \
-		if (err) \
-			return err; \
-	}
-	VISIT(self->write);
-	VISIT(self->memo);
-	VISIT(self->fast_memo);
-	VISIT(self->arg);
-	VISIT(self->file);
-	VISIT(self->pers_func);
-	VISIT(self->inst_pers_func);
-	VISIT(self->dispatch_table);
-#undef VISIT
+	Py_VISIT(self->write);
+	Py_VISIT(self->memo);
+	Py_VISIT(self->fast_memo);
+	Py_VISIT(self->arg);
+	Py_VISIT(self->file);
+	Py_VISIT(self->pers_func);
+	Py_VISIT(self->inst_pers_func);
+	Py_VISIT(self->dispatch_table);
 	return 0;
 }
 
@@ -5258,24 +5250,15 @@ Unpickler_dealloc(Unpicklerobject *self)
 static int
 Unpickler_traverse(Unpicklerobject *self, visitproc visit, void *arg)
 {
-	int err;
-
-#define VISIT(SLOT) \
-	if (SLOT) { \
-		err = visit((PyObject *)(SLOT), arg); \
-		if (err) \
-			return err; \
-	}
-	VISIT(self->readline);
-	VISIT(self->read);
-	VISIT(self->file);
-	VISIT(self->memo);
-	VISIT(self->stack);
-	VISIT(self->pers_func);
-	VISIT(self->arg);
-	VISIT(self->last_string);
-	VISIT(self->find_class);
-#undef VISIT
+	Py_VISIT(self->readline);
+	Py_VISIT(self->read);
+	Py_VISIT(self->file);
+	Py_VISIT(self->memo);
+	Py_VISIT(self->stack);
+	Py_VISIT(self->pers_func);
+	Py_VISIT(self->arg);
+	Py_VISIT(self->last_string);
+	Py_VISIT(self->find_class);
 	return 0;
 }