Module: Predicate::Opaque

Includes:

Expr

Defined in:

lib/predicate/nodes/opaque.rb

Constant Summary

Constants included from Expr

Expr::OP_NEGATIONS

Instance Method Summary

• #evaluate(tuple) ⇒ Object
• #free_variables ⇒ Object
• #priority ⇒ Object

Methods included from Expr

#!, #&, #and_split, #attr_split, #bind, #constant_variables, #constants, #contradiction?, #dyadic_priority, #identifier?, #literal?, #opaque?, #qualify, #rename, #sexpr, #tautology?, #to_hash, #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

Raises:

• (NotImplementedError)

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

def evaluate(tuple)
  raise NotImplementedError, "Opaque#evaluate is not defined"
end

#free_variables ⇒ Object

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

def free_variables
  @free_variables ||= []
end

#priority ⇒ Object

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

def priority
  100
end