util: Add properties_print_helper

Author: jepler

shared-bindings/util.c

@@ -37,5 +37,17 @@ void raise_deinited_error(void) {
     mp_raise_ValueError(translate("Object has been deinitialized and can no longer be used. Create a new object."));
 }
 
+void properties_print_helper(const mp_print_t *print, mp_obj_t self_in, const mp_arg_t *properties, size_t n_properties) {
+    const mp_obj_type_t *type = mp_obj_get_type(self_in);
+    mp_printf(print, "%q(", type->name);
+    for (size_t i = 0; i < n_properties; i++) {
+        if (i > 0) {
+            mp_print_str(print, ", ");
+        }
+        mp_printf(print, "%q=", properties[i].qst);
+        mp_obj_print_helper(print, mp_load_attr(self_in, properties[i].qst), PRINT_REPR);
+    }
+    mp_print_str(print, ")");
+}
 
 #endif // MICROPY_INCLUDED_SHARED_BINDINGS_UTIL_H

shared-bindings/util.h

@@ -27,7 +27,11 @@
 #ifndef MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_UTIL_H
 #define MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_UTIL_H
 
+#include "py/mpprint.h"
+#include "py/runtime.h"
+
 void raise_deinited_error(void);
+void properties_print_helper(const mp_print_t *print, mp_obj_t self_in, const mp_arg_t *properties, size_t n_properties);
 
 
 #endif // MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_UTIL_H