51 lines
1.6 KiB
Ruby
51 lines
1.6 KiB
Ruby
require_relative "object"
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module Virtual
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# Instruction is an abstract for all the code of the object-machine.
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# Derived classes make up the actual functionality of the machine.
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# All functions on the machine are captured as instances of instructions
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#
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# It is actually the point of the virtual machine layer to express oo functionality in the set of
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# instructions, thus defining a minimal set of instructions needed to implement oo.
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class Instruction < Virtual::Object
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# simple thought: don't recurse for Blocks, just check their names
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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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if( left.is_a? Block)
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return false unless left.name == right.name
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else
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return false unless left == right
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end
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end
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return true
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end
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end
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end
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require_relative "instructions/branch"
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require_relative "instructions/halt"
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require_relative "instructions/instance_get"
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require_relative "instructions/message_send"
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require_relative "instructions/method_call"
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require_relative "instructions/method_enter"
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require_relative "instructions/method_return"
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require_relative "instructions/new_frame"
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require_relative "instructions/new_message"
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require_relative "instructions/set"
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