Class: HDL::Dependency

Inherits:
Object
  • Object
show all
Defined in:
lib/hdl/dependency.rb

Class Method Summary collapse

Class Method Details

.all ⇒ Object 



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# File 'lib/hdl/dependency.rb', line 11

def all
  set
end

.create(dependee, dependent) ⇒ Object

dependee depends on dependent



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# File 'lib/hdl/dependency.rb', line 6

def create(dependee, dependent)
  check_for_cycles!(dependee, dependent)
  set << { dependee => dependent }
end

.dependees_for(dependent) ⇒ Object

What depends on the dependent?



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# File 'lib/hdl/dependency.rb', line 36

def dependees_for(dependent)
  recursive_ancestors_for(dependent, :dependent, :keys)
end

.dependents_for(dependee) ⇒ Object

What does the dependee depend on?



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# File 'lib/hdl/dependency.rb', line 31

def dependents_for(dependee)
  recursive_ancestors_for(dependee, :dependee, :values)
end

.where(filter = {}) ⇒ Object 



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# File 'lib/hdl/dependency.rb', line 15

def where(filter = {})
  scope = all

  if (f = filter[:dependee])
    scope = scope.select { |h| h.keys.first == f }
  end

  if (f = filter[:dependent])
    scope = scope.select { |h| h.values.first == f }
  end


  scope
end