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py/objtype: mp_obj_class_lookup: Improve debug logging. 

Now traces more explicitly thru the lookup process.
This commit is contained in:
Paul Sokolovsky 2017-08-31 00:44:51 +03:00
parent 35be9e805f
commit 4556bd2acd
1 changed files with 6 additions and 2 deletions
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8
py/objtype.c
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@ -113,13 +113,15 @@ STATIC void mp_obj_class_lookup(struct class_lookup_data *lookup, const mp_obj_
assert(lookup->dest[0] == MP_OBJ_NULL);
assert(lookup->dest[1] == MP_OBJ_NULL);
for (;;) {
DEBUG_printf("mp_obj_class_lookup: Looking up %s in %s\n", qstr_str(lookup->attr), qstr_str(type->name));
// Optimize special method lookup for native types
// This avoids extra method_name => slot lookup. On the other hand,
// this should not be applied to class types, as will result in extra
// lookup either.
if (lookup->meth_offset != 0 && mp_obj_is_native_type(type)) {
if (*(void**)((char*)type + lookup->meth_offset) != NULL) {
DEBUG_printf("mp_obj_class_lookup: matched special meth slot for %s\n", qstr_str(lookup->attr));
DEBUG_printf("mp_obj_class_lookup: Matched special meth slot (off=%d) for %s\n",
lookup->meth_offset, qstr_str(lookup->attr));
lookup->dest[0] = MP_OBJ_SENTINEL;
return;
}
@ -150,7 +152,8 @@ STATIC void mp_obj_class_lookup(struct class_lookup_data *lookup, const mp_obj_
#if DEBUG_PRINT
printf("mp_obj_class_lookup: Returning: ");
mp_obj_print(lookup->dest[0], PRINT_REPR); printf(" ");
mp_obj_print(lookup->dest[1], PRINT_REPR); printf("\n");
// Don't try to repr() lookup->dest[1], as we can be called recursively
printf("<%s @%p>\n", mp_obj_get_type_str(lookup->dest[1]), lookup->dest[1]);
#endif
return;
}
@ -169,6 +172,7 @@ STATIC void mp_obj_class_lookup(struct class_lookup_data *lookup, const mp_obj_
// attribute not found, keep searching base classes
if (type->parent == NULL) {
DEBUG_printf("mp_obj_class_lookup: No more parents\n");
return;
} else if (((mp_obj_base_t*)type->parent)->type == &mp_type_tuple) {
const mp_obj_tuple_t *parent_tuple = type->parent;