Class: Code::Parser::Operation

Inherits:
Language
  • Object
show all
Defined in:
lib/code/parser/operation.rb

Instance Method Summary collapse

Methods inherited from Language

<<, >>, absent, aka, #any, ignore, #inspect, maybe, parse, #parse, repeat, #str, then, #to_s, |

Instance Method Details

#operator ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/code/parser/operation.rb', line 16

def operator
  raise NotImplementedError
end

#root ⇒ Object 



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# File 'lib/code/parser/operation.rb', line 20

def root
  (
    statement.aka(:first) <<
      (
        whitespace? << operator.aka(:operator) << whitespace? <<
          statement.aka(:statement)
      ).repeat(1).aka(:others).maybe
  )
    .aka(:operation)
    .then do |output|
      output[:operation][:others] ? output : output[:operation][:first]
    end
end

#statement ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/code/parser/operation.rb', line 4

def statement
  raise NotImplementedError
end

#whitespace ⇒ Object 



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# File 'lib/code/parser/operation.rb', line 8

def whitespace
  ::Code::Parser::Whitespace
end

#whitespace? ⇒ Boolean

Returns:



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# File 'lib/code/parser/operation.rb', line 12

def whitespace?
  whitespace.maybe
end