Module: Traitor::ConflictCheck

Defined in:
lib/traitor/conflict_check.rb

Defined Under Namespace

Classes: TraitConflict

Class Method Summary collapse

Class Method Details

.check(host_class) ⇒ Object

Raises:



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# File 'lib/traitor/conflict_check.rb', line 6

def check(host_class)
  conflicts = []
  traits = host_class.traits
  traits.each do |t|
    traits.reject { |other| other == t }.each do |other|
      t.trait_methods.each do |m|
        conflicts << m if other.implements?(m)
      end
    end
  end
  conflicts.delete_if do |c|
    host_class.instance_methods(false).include?(c)
  end
  return false if conflicts.empty?

  output = "Conflicting methods: #{conflicts.uniq.map {|c| "##{c}"}.join(', ')}"
  raise TraitConflict, output
end