Class: Linguistics::Latin::Verb::LatinVerb::Mutators::Deponent::TenseBlockMutator

Inherits:
Object
  • Object
show all
Defined in:
lib/latinverb/tense_method_applicator/mutators/deponent/tense_block_mutator.rb

Instance Method Summary collapse

Constructor Details

#initialize(verb, proxyVerb) ⇒ TenseBlockMutator

Returns a new instance of TenseBlockMutator.



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# File 'lib/latinverb/tense_method_applicator/mutators/deponent/tense_block_mutator.rb', line 8

def initialize(verb, proxyVerb)
  @verb = verb
  @proxyVerb = proxyVerb

  mutate!
end

Instance Method Details

#mutate! ⇒ Object

Swaps this verb’s active_ vectors and replaces them with @proxyVerb’s passive_ vectors. This is pretty darned sneaky. See Also deponent_swap



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# File 'lib/latinverb/tense_method_applicator/mutators/deponent/tense_block_mutator.rb', line 22

def mutate!
  # First, get the methods that were defined in the proxy as passive

  storage = {}

  @proxyVerb.methods.grep(/\Apassive.+tense\z/).each do |pass|
    # Find the active correlate
    active_corr = pass.to_s.sub( /^passive(.*)/, "active\\1" )

    #  Keep @proxyVerb in the binding scope
    pV = @proxyVerb

    # In verb, find the passive and save its resultant object into a
    # hash for future use.
    @verb.instance_eval do
      storage[active_corr.to_sym] = pV.send(pass)
    end
  end

  # Take the stored hashes and define instance methods on verb such
  # that we intercept the mixed-in methods ( C-c-c-combo breaker! ).
  storage.each_pair do |k,v|
    @verb.singleton_class.class_eval do
      define_method k, Proc.new { return v }
    end
  end
end