module ScoutApm::Utils::KlassHelper

Public Class Methods

defined?(*names) click to toggle source

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

# File lib/scout_apm/utils/klass_helper.rb, line 7
def self.defined?(*names)
  lookup(*names) != :missing_class
end
lookup(*names) click to toggle source

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

# 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