Module: Predicate::QualifiedIdentifier

Includes:: Expr

Defined in:: lib/predicate/nodes/qualified_identifier.rb

Constant Summary

Constants included from Expr

Expr::OP_NEGATIONS

Instance Method Summary collapse

Methods included from Expr

#!, #&, #and_split, #attr_split, #bind, #constant_variables, #constants, #contradiction?, #dyadic_priority, #identifier?, #literal?, #opaque?, #qualify, #rename, #sexpr, #tautology?, #to_s, #to_sequel, #unqualify, #|

Methods included from Factory

#and, #between, #comp, #contradiction, #from_hash, #identifier, #in, #intersect, #literal, #match, #native, #not, #opaque, #or, #placeholder, #qualified_identifier, #tautology

Instance Method Details

#evaluate(tuple) ⇒ `Object`



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# File 'lib/predicate/nodes/qualified_identifier.rb', line 21

def evaluate(tuple)
  tuple[name]
end

#free_variables ⇒ `Object`



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# File 'lib/predicate/nodes/qualified_identifier.rb', line 17

def free_variables
  @free_variables ||= [ :"#{qualifier}.#{name}" ]
end

#name ⇒ `Object`



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# File 'lib/predicate/nodes/qualified_identifier.rb', line 13

def name
  self[2]
end

#priority ⇒ `Object`



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# File 'lib/predicate/nodes/qualified_identifier.rb', line 5

def priority
  100
end

#qualifier ⇒ `Object`



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# File 'lib/predicate/nodes/qualified_identifier.rb', line 9

def qualifier
  self[1]
end