Module: Alf::Algebra::Classification

Defined in:
lib/alf-algebra/alf/algebra/support/classification.rb

Instance Method Summary collapse

Instance Method Details

#binary? ⇒ Boolean

Returns true if this operator is a binary operator, false otherwise.

Returns:

  • (Boolean) —

    true if this operator is a binary operator, false otherwise



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# File 'lib/alf-algebra/alf/algebra/support/classification.rb', line 31

def binary?
  arity == 2
end

#experimental? ⇒ Boolean

Returns true if this is an experimental operator, false otherwise.

Returns:

  • (Boolean) —

    true if this is an experimental operator, false otherwise



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# File 'lib/alf-algebra/alf/algebra/support/classification.rb', line 11

def experimental?
  ancestors.include?(Experimental)
end

#non_relational? ⇒ Boolean

Returns true if this is a non relational operator, false otherwise.

Returns:

  • (Boolean) —

    true if this is a non relational operator, false otherwise



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# File 'lib/alf-algebra/alf/algebra/support/classification.rb', line 16

def non_relational?
  ancestors.include?(NonRelational)
end

#nullary? ⇒ Boolean

Returns true if this operator is a zero-ary operator, false otherwise.

Returns:

  • (Boolean) —

    true if this operator is a zero-ary operator, false otherwise



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# File 'lib/alf-algebra/alf/algebra/support/classification.rb', line 21

def nullary?
  arity == 0
end

#relational? ⇒ Boolean

Returns true if this is a relational operator, false otherwise.

Returns:

  • (Boolean) —

    true if this is a relational operator, false otherwise



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# File 'lib/alf-algebra/alf/algebra/support/classification.rb', line 6

def relational?
  ancestors.include?(Relational)
end

#unary? ⇒ Boolean

Returns true if this operator is an unary operator, false otherwise.

Returns:

  • (Boolean) —

    true if this operator is an unary operator, false otherwise



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# File 'lib/alf-algebra/alf/algebra/support/classification.rb', line 26

def unary?
  arity == 1
end