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[Bug #17780] Fix Method#super_method for module alias

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Method#super_method crashes for aliased module methods because they are
not defined on a class. This bug was introduced in
c60aaed185 as part of bug #17130.
This commit is contained in:
Peter Zhu 2021-04-07 18:25:16 +00:00 • committed by Peter Zhu
parent 587e680008
commit d8a13e5049
Notes: git 2021-04-08 04:17:32 +09:00
2 changed files with 14 additions and 1 deletions
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2
proc.c
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@ -3227,7 +3227,7 @@ method_super_method(VALUE method)
TypedData_Get_Struct(method, struct METHOD, &method_data_type, data); TypedData_Get_Struct(method, struct METHOD, &method_data_type, data);
iclass = data->iclass; iclass = data->iclass;
if (!iclass) return Qnil; if (!iclass) return Qnil;
if (data->me->def->type == VM_METHOD_TYPE_ALIAS) { if (data->me->def->type == VM_METHOD_TYPE_ALIAS && data->me->defined_class) {
super_class = RCLASS_SUPER(rb_find_defined_class_by_owner(data->me->defined_class, super_class = RCLASS_SUPER(rb_find_defined_class_by_owner(data->me->defined_class,
data->me->def->body.alias.original_me->owner)); data->me->def->body.alias.original_me->owner));
mid = data->me->def->body.alias.original_me->def->original_id; mid = data->me->def->body.alias.original_me->def->original_id;

13
test/ruby/test_method.rb
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@ -1168,6 +1168,19 @@ class TestMethod < Test::Unit::TestCase
assert_nil(m.super_method) assert_nil(m.super_method)
end end
# Bug 17780
def test_super_method_module_alias
m = Module.new do
def foo
end
alias :f :foo
end
method = m.instance_method(:f)
super_method = method.super_method
assert_nil(super_method)
end
def rest_parameter(*rest) def rest_parameter(*rest)
rest rest
end end