Given getSingletonClass + makeMetaClass on RubyObject and
ClassVarNodeVisitor in EvaluateVisitor, we've got a problem with the
objects attaced to singleton classes. getSingletonClass gets called on
normal objects, right? So then if the singleton class has a class
variable accessed somewhere later, it will blow up since we expect the
attached object for a singleton class to be another RubyModule in
ClassVarNodeVisitor. Seems there needs to be another case for when the
attached object is just a plain old object, yeah? Or am I wrong on the
cause of the issue below?
The following bit of code blows all to hell as a result. I found this
while investigating the cvar failures in C ruby's test_eval.
class A
Const = :A
@ivar = :Ac
@@cvar = :A
def initialize
@ivar = :Ai
end
end
class B
Const = :B
@ivar = :Bc
@@cvar = :B
def initialize
@ivar = :Bi
end
def test_i_i_b() A.new.instance_eval { p [Const, @ivar, @@cvar] } end
def test_i_i_s() A.new.instance_eval " p [Const, @ivar, @@cvar] " end
def test_c_i_b() A.instance_eval { p [Const, @ivar, @@cvar] } end
def test_c_i_s() A.instance_eval " p [Const, @ivar, @@cvar] " end
def test_c_c_b() A.class_eval { p [Const, @ivar, @@cvar] } end
def test_c_c_s() A.class_eval " p [Const, @ivar, @@cvar] " end
end
B.new.test_i_i_b
B.new.test_i_i_s
B.new.test_c_i_b
B.new.test_c_i_s
B.new.test_c_c_b
B.new.test_c_c_s
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