Class: ShEx::Algebra::Or

Inherits:
Operator show all
Includes:
Satisfiable
Defined in:
lib/shex/algebra/or.rb

Constant Summary collapse

NAME = 
:or

Constants inherited from Operator

ShEx::Algebra::Operator::ARITY

Instance Attribute Summary

Attributes inherited from Operator

#operands, #options, #schema

Instance Method Summary collapse

Methods included from Satisfiable

#not_satisfies?, #satisfiable?, #triple_expressions

Methods inherited from Operator

#closed?, #each_descendant, #eql?, #first_ancestor, #inspect, #not_matched, #not_satisfied, #operand, #parent, #parent=, #satisfiable?, #semact?, #semantic_actions, #status, #structure_error, #to_sxp, #to_sxp_bin, #triple_expression?, #validate!

Constructor Details

#initialize(*args, **options) ⇒ Or

Returns a new instance of Or.



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# File 'lib/shex/algebra/or.rb', line 7

def initialize(*args, **options)
  case
  when args.length <= 1
    raise ArgumentError, "wrong number of arguments (given #{args.length}, expected 1..)"
  end
  super
end

Instance Method Details

#satisfies?(n) ⇒ Boolean

S is a ShapeOr and there is some shape expression se2 in shapeExprs such that satisfies(n, se2, G, m).

Parameters:

  • n (RDF::Resource)

Returns:

  • (Boolean) —

    ‘true` if satisfied, `false` if it does not apply

Raises:



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# File 'lib/shex/algebra/or.rb', line 20

def satisfies?(n)
  any_not_satisfied = false
  operands.select {|o| o.is_a?(Satisfiable)}.any? do |op|
    begin
      op.satisfies?(n)
      status "satisfied #{n}"
      return true
    rescue ShEx::NotSatisfied => e
      log_recover("or: ignore error: #{e.message}", depth: options.fetch(:depth, 0))
      any_not_satisfied = e
      false
    end
  end

  not_satisfied "Expected some expression to be satisfied"
end