Module: ScoutApm::Utils::KlassHelper

Defined in:
lib/scout_apm/utils/klass_helper.rb

Class Method Summary collapse

Class Method Details

.defined?(*names) ⇒ Boolean

KlassHelper.defined?(“ActiveRecord”, “Base”) #=> true / false KlassHelper.defined?(“ActiveRecord::Base”) #=> true / false

Returns:

  • (Boolean) 


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# File 'lib/scout_apm/utils/klass_helper.rb', line 7

def self.defined?(*names)
  lookup(*names) != :missing_class
end

.lookup(*names) ⇒ Object

KlassHelper.lookup(“ActiveRecord::Base”) => ActiveRecord::Base KlassHelper.lookup(“ActiveRecord::SomethingThatDoesNotExist”) => :missing_class



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# File 'lib/scout_apm/utils/klass_helper.rb', line 13

def self.lookup(*names)
  if names.length == 1
    names = names[0].split("::")
  end

  obj = Object

  names.each do |name|
    begin
      obj = obj.const_get(name)
    rescue NameError
      return :missing_class
    end
  end

  obj
end