Class: StringAsteriskOperator

Inherits:
Object
  • Object
show all
Defined in:
lib/cauldron/operator/string_asterisk_operator.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(indexes) ⇒ StringAsteriskOperator

Although it should probably be

0

[ [‘a’] ]

1

[ [‘b’, ‘c’], [‘g’, ‘d’] ]

Or the order it was added might be more useful - e.g. last variable, second last variable or first variable

  • variable at depth(1) - stepUp(1).first



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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 25

def initialize(indexes)
  @indexes = indexes
  @constant = 2
  #@constant, @indexes = constant, indexes
end

Class Method Details

.find_constants(problems) ⇒ Object 



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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 86

def self.find_constants(problems)
  return [] unless problems.all? { |x| x.response.kind_of?(String) }
  problems.collect {|x| x.response.scan(x.arguments.first).count }.reject {|x| x == 0}
end

.history_goals(context_history, target) ⇒ Object

end



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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 81

def self.history_goals(context_history,target)
  variables = context_history.first.keys
  context_history.each {|x| x[variables.first] }.zip(target)
end

.instances(histories, composite, examples, insert_points) ⇒ Object 



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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 31

def self.instances(histories, composite, examples, insert_points)

  # TEMP
  unless examples.class == ExampleSet
    raise StandardError.new('Examples should be an example')
  end

  # Print out each insertable statements
  scope = examples.scope

  # self.init([0]).to_ruby(scope)
  # - this will print out "var0.chop"

  # Get the variables available at each point
  results = []

  insert_points.each do |point|

    # Find the variables at a particular point
    # TODO Change to test
    contexts = histories.contexts_at(point)
    composites = context_instances(contexts)

    composites.each do |x|
      if contexts.all? do |context|
        x.context_realizable?(context)
      end
        results << extend_actualized_composite(x, composite, examples, point)
      end
    end

  end
  
  results
end

.uses_block? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 101

def self.uses_block?
  false
end

.uses_constants? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 97

def self.uses_constants?
  true
end

.viable?(arguments, output) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 91

def self.viable?(arguments,output)
  return false unless output.kind_of?(String)
  return false unless arguments.first.kind_of?(String)
  true
end

Instance Method Details

#branch? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 105

def branch?
  false
end

#build(operators, scope) ⇒ Object

TODO Get rid of the defined names



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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 127

def build(operators, scope)
  to_sexp(operators, scope)
end

#successful?(problem) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 109

def successful?(problem)
  return true if problem[:arguments].first*@constant == problem[:response]    
  false
end

#to_ruby(scope, operators) ⇒ Object 



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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 114

def to_ruby(scope, operators)
  Sorcerer.source self.to_sexp([], scope)
end

#to_sexp(scope, children) ⇒ Object

def to_sexp(operators, scope)

[:binary, [:vcall, [:@ident, scope[@indexes[0]] ]], :*, [:@int, @constant]]

end



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# File 'lib/cauldron/operator/string_asterisk_operator.rb', line 121

def to_sexp(scope, children)
  first_variable = 'var'+@indexes[0].to_s
  Ripper::SexpBuilder.new(%Q{#{first_variable} * #{@constant}}).parse
end