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-rw-r--r--class.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/class.c b/class.c
index c1903f9076..b8e47df8f2 100644
--- a/class.c
+++ b/class.c
@@ -790,6 +790,7 @@ move_refined_method(st_data_t key, st_data_t value, st_data_t data)
void
rb_prepend_module(VALUE klass, VALUE module)
{
+ void rb_vm_check_redefinition_by_prepend(VALUE klass);
VALUE origin;
int changed = 0;
@@ -816,7 +817,10 @@ rb_prepend_module(VALUE klass, VALUE module)
changed = include_modules_at(klass, klass, module);
if (changed < 0)
rb_raise(rb_eArgError, "cyclic prepend detected");
- if (changed) rb_clear_cache();
+ if (changed) {
+ rb_clear_cache();
+ rb_vm_check_redefinition_by_prepend(klass);
+ }
}
/*