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-rw-r--r--src/class.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/class.c b/src/class.c
index 84c6964e2..a7d77924f 100644
--- a/src/class.c
+++ b/src/class.c
@@ -1833,6 +1833,18 @@ mrb_mod_remove_const(mrb_state *mrb, mrb_value mod)
return val;
}
+mrb_value
+mrb_mod_const_missing(mrb_state *mrb, mrb_value mod)
+{
+ mrb_sym sym;
+
+ mrb_get_args(mrb, "n", &sym);
+ mrb_name_error(mrb, sym, "uninitialized constant %S",
+ mrb_sym2str(mrb, sym));
+ /* not reached */
+ return mrb_nil_value();
+}
+
static mrb_value
mrb_mod_s_constants(mrb_state *mrb, mrb_value mod)
{
@@ -1926,6 +1938,7 @@ mrb_init_class(mrb_state *mrb)
mrb_define_method(mrb, mod, "const_set", mrb_mod_const_set, MRB_ARGS_REQ(2)); /* 15.2.2.4.23 */
mrb_define_method(mrb, mod, "constants", mrb_mod_constants, MRB_ARGS_NONE()); /* 15.2.2.4.24 */
mrb_define_method(mrb, mod, "remove_const", mrb_mod_remove_const, MRB_ARGS_REQ(1)); /* 15.2.2.4.40 */
+ mrb_define_method(mrb, mod, "const_missing", mrb_mod_const_missing, MRB_ARGS_REQ(1));
mrb_define_method(mrb, mod, "define_method", mod_define_method, MRB_ARGS_REQ(1));
mrb_define_method(mrb, mod, "class_variables", mrb_mod_class_variables, MRB_ARGS_NONE()); /* 15.2.2.4.19 */
mrb_define_method(mrb, mod, "===", mrb_mod_eqq, MRB_ARGS_REQ(1));