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-rw-r--r--src/kernel.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/kernel.c b/src/kernel.c
index 69a7311e0..ae9617686 100644
--- a/src/kernel.c
+++ b/src/kernel.c
@@ -325,7 +325,7 @@ mrb_obj_clone(mrb_state *mrb, mrb_value self)
mrb_value clone;
if (mrb_immediate_p(self)) {
- mrb_raisef(mrb, E_TYPE_ERROR, "can't clone %v", self);
+ return self;
}
if (mrb_sclass_p(self)) {
mrb_raise(mrb, E_TYPE_ERROR, "can't clone singleton class");
@@ -366,7 +366,7 @@ mrb_obj_dup(mrb_state *mrb, mrb_value obj)
mrb_value dup;
if (mrb_immediate_p(obj)) {
- mrb_raisef(mrb, E_TYPE_ERROR, "can't dup %v", obj);
+ return obj;
}
if (mrb_sclass_p(obj)) {
mrb_raise(mrb, E_TYPE_ERROR, "can't dup singleton class");
@@ -384,7 +384,7 @@ mrb_obj_extend(mrb_state *mrb, mrb_int argc, mrb_value *argv, mrb_value obj)
mrb_int i;
if (argc == 0) {
- mrb_raise(mrb, E_ARGUMENT_ERROR, "wrong number of arguments (at least 1)");
+ mrb_argnum_error(mrb, argc, 1, -1);
}
for (i = 0; i < argc; i++) {
mrb_check_type(mrb, argv[i], MRB_TT_MODULE);