37 lines
973 B
Ruby
37 lines
973 B
Ruby
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# A message is what is sent when you invoke a method. Args and stuff are packed up in to a Message
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# and the Message is sent to the receiver.
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# Part of the housekeeping (see attributes) makes messages a double linked list (next_message and
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# caller) , and maybe surprisingly this means that we can create all messages at runtime
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# and link them up and never have to touch that list again.
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# All the args and receiver data changes, but the list of messages stays constant.
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module Parfait
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class Message < Object
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attr_reader :locals , :receiver , :return_value , :name
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attr_accessor :next_message
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def initialize next_m
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@next_message = next_m
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@locals = NamedList.new()
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@arguments = NamedList.new()
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super()
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end
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def set_receiver(rec)
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@receiver = rec
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end
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def set_caller(caller)
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@caller = caller
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end
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def get_type_for(name)
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index = @type.get_index(name)
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get_at(index)
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end
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end
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end
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