Class: Command::CommandSetup

Inherits:
SetVisitor show all
Defined in:
lib/command-set/structural.rb

Direct Known Subclasses

AnchoredCommandSetup

Instance Attribute Summary collapse

Attributes inherited from SetVisitor

#command_path, #subject_context

Instance Method Summary collapse

Methods inherited from SetVisitor

#command_out_of_terms, #extra_terms, #set_out_of_terms

Constructor Details

#initialize(terms = [], hash = {}) ⇒ CommandSetup

Returns a new instance of CommandSetup.



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# File 'lib/command-set/structural.rb', line 74

def initialize(terms = [], hash = {})
  super()
  @command_class = nil 
  @subject = subject 
  @arg_hash = hash
  @terms = terms.dup
  @task_id = nil
  @set_nesting = []
end

Instance Attribute Details

#arg_hash ⇒ Object

Returns the value of attribute arg_hash.



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# File 'lib/command-set/structural.rb', line 84

def arg_hash
  @arg_hash
end

#command_class ⇒ Object

Returns the value of attribute command_class.



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# File 'lib/command-set/structural.rb', line 84

def command_class
  @command_class
end

#set_nesting ⇒ Object

Returns the value of attribute set_nesting.



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# File 'lib/command-set/structural.rb', line 84

def set_nesting
  @set_nesting
end

#subject ⇒ Object

Returns the value of attribute subject.



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# File 'lib/command-set/structural.rb', line 84

def subject
  @subject
end

#task_id ⇒ Object

Returns the value of attribute task_id.



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# File 'lib/command-set/structural.rb', line 84

def task_id
  @task_id
end

#terms ⇒ Object

Returns the value of attribute terms.



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# File 'lib/command-set/structural.rb', line 84

def terms
  @terms
end

Instance Method Details

#arrive_at(terms, node) ⇒ Object 



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# File 'lib/command-set/structural.rb', line 87

def arrive_at(terms, node)
  @command_class = node
  subject = @subject.get_image(node.subject_requirements, @subject_context)
  return node.consume_terms(terms, subject, @arg_hash)
end

#class_resolution(command_set) ⇒ Object 



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# File 'lib/command-set/structural.rb', line 106

def class_resolution(command_set)
  @command_class = command_set.find_command(@terms.dup)
end

#command_instance(command_set, subject) ⇒ Object 



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# File 'lib/command-set/structural.rb', line 116

def command_instance(command_set, subject)
  @subject ||= subject
  resolve_command_class(command_set)
  command = self.command_class.new(self, task_id)
  command.consume_hash(self.arg_hash)
  return command
end

#leave_from(via, terms, node) ⇒ Object 



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# File 'lib/command-set/structural.rb', line 93

def leave_from(via, terms, node)
  if CommandSet === node
    @set_nesting << node
  end
  super
end

#resolve_command_class(command_set) ⇒ Object 



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# File 'lib/command-set/structural.rb', line 110

def resolve_command_class(command_set)
  return if Class === @command_class && Command > @command_class
  class_resolution(command_set)
  #@args_hash = @arg_hash.merge(@args_hash)
end

#term_without_hop(terms, node) ⇒ Object 



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# File 'lib/command-set/structural.rb', line 100

def term_without_hop(terms, node)
  if CommandSet === node
    raise CommandException, "#{@command_path.join(" ")}: No such command: #{terms.first}"
  end
end