36 lines
995 B
Ruby
36 lines
995 B
Ruby
module Virtual
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# the virtual machine is implemented in values (a c++ version of oo).
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# Values have types which are represented as classes, instances of Type to be precise
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# Values must really be Constants or Variables, ie have a storage space
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class Walue
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def type
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raise "abstract called for #{self.class}"
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end
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def == other
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return false unless other.class == self.class
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Sof::Util.attributes(self).each do |a|
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begin
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left = send(a)
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rescue NoMethodError
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next # not using instance variables that are not defined as attr_readers for equality
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end
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begin
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right = other.send(a)
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rescue NoMethodError
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return false
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end
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return false unless left.class == right.class
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return false unless left == right
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end
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return true
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end
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private #can't instantiate, must be constant or variable
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def initialize
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end
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end
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end
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require_relative "slot" |