diff options
Diffstat (limited to 'enumerator.c')
-rw-r--r-- | enumerator.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/enumerator.c b/enumerator.c index 62dbf57070..71f473a854 100644 --- a/enumerator.c +++ b/enumerator.c @@ -1663,6 +1663,12 @@ lazy_zip(int argc, VALUE *argv, VALUE obj) for (i = 0; i < argc; i++) { v = rb_check_array_type(argv[i]); if (NIL_P(v)) { + for (; i < argc; i++) { + if (!rb_respond_to(argv[i], id_each)) { + rb_raise(rb_eTypeError, "wrong argument type %s (must respond to :each)", + rb_obj_classname(argv[i])); + } + } ary = rb_ary_new4(argc, argv); func = lazy_zip_func; break; |