Module: Hecks::Runtime::DependencyPlanning::ExpressionReads

Defined in:
lib/hecks/runtime/dependency_planning.rb

Class Method Summary collapse

Class Method Details

.collect(node, bound_names) ⇒ Object 



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# File 'lib/hecks/runtime/dependency_planning.rb', line 44

def collect(node, bound_names)
  case node
  when Bluebook::Expression::Resolver::Lookup
    root = node.path.to_s.split(".", 2).first
    bound_names.include?(root) ? [] : [node.path.to_s]
  when Bluebook::Expression::Resolver::BlockPredicate
    collect(node.receiver, bound_names) +
      collect(node.predicate, bound_names | [node.param.to_s])
  when Struct
    node.each_pair.flat_map { |_name, value| collect(value, bound_names) }
  when Array
    node.flat_map { |value| collect(value, bound_names) }
  else
    []
  end
end

.paths(canonical) ⇒ Object

Read the same parsed canonical-expression nodes the evaluator uses. A generic Struct walk keeps this additive when the expression grammar gains a composed node; only Lookup nodes carry domain dependencies.



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# File 'lib/hecks/runtime/dependency_planning.rb', line 40

def paths(canonical)
  collect(Bluebook::Expression::Evaluator.parse(canonical), Set.new)
end