commit 0bc15941c2d9f9b0e05fdf0e96f1a7b843912be6
author Paul Sokolovsky <pfalcon@users.sourceforge.net> Sat May 10 21:05:45 2014 +0300
committer Paul Sokolovsky <pfalcon@users.sourceforge.net> Sat May 10 21:26:07 2014 +0300
tree a214c1ff4a4b6b8fe48d3e11ff5ce38c5a6d92d2
parent 7067d69bccba41e2bf6c0ddad80cee603a81352a

py: Make mp_obj_print() handle null object w/o segfault if debug build.

Happens regularly when used for debugging.

py/obj.c

diff --git a/py/obj.c b/py/obj.c
index 8c6c3e7..6494a84 100644
--- a/py/obj.c
+++ b/py/obj.c
@@ -59,6 +59,12 @@
 }
 
 void mp_obj_print_helper(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in, mp_print_kind_t kind) {
+#if !NDEBUG
+    if (o_in == NULL) {
+        print(env, "(nil)");
+        return;
+    }
+#endif
     mp_obj_type_t *type = mp_obj_get_type(o_in);
     if (type->print != NULL) {
         type->print(print, env, o_in, kind);