Module: Loader::AutoLoad::Support

Defined in:
lib/loader/autoload.rb

Class Method Summary collapse

Class Method Details

.generate_levels(klass, name) ⇒ Object 



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# File 'lib/loader/autoload.rb', line 25

def generate_levels(klass, name)
  levels = klass.to_s.split('::').reduce([]) { |m, c|
    m << [(last_obj = m.last), c].compact.join('::');m
  }.map { |str| [str, name].join('::') }
  levels.unshift(name.to_s)
  return levels
end

.pwd ⇒ Object 



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# File 'lib/loader/autoload.rb', line 7

def pwd
  if !!ENV['BUNDLE_GEMFILE']
    ENV['BUNDLE_GEMFILE'].split(File::Separator)[0..-2].join(File::Separator)
  else
    Dir.pwd
  end
end

.try_fetch_constant(caller_class, name) ⇒ Object 



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# File 'lib/loader/autoload.rb', line 33

def try_fetch_constant(caller_class, name)
  levels = Support.generate_levels(caller_class, name).map { |str| Regexp.escape(str) }
  ObjectSpace.each_object(Module) { |obj|
    if !!(obj.to_s =~ /^(#{levels.join('|')})$/)
      return obj
    end
  };nil
end

.try_load_by(caller_class, name) ⇒ Object 



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# File 'lib/loader/autoload.rb', line 15

def try_load_by(caller_class,name)
  levels = generate_levels(caller_class, name)
  ['lib',nil].each do |folder|
    levels.map{|str| File.join(*[pwd,folder,"#{underscore(str)}.rb"].compact)
    }.sort{|a,b| b.length <=> a.length }.each do |path|
      return if File.exist?(path) && require(path)
    end
  end
end

.underscore(camel_cased_word) ⇒ Object

Based on ActiveSupport, removed inflections. github.com/rails/rails/blob/v4.1.0.rc1/activesupport/lib/active_support/inflector/methods.rb



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# File 'lib/loader/autoload.rb', line 44

def underscore(camel_cased_word)
  word = camel_cased_word.to_s.gsub('::', '/')
  word.gsub!(/([A-Z\d]+)([A-Z][a-z])/,'\1_\2')
  word.gsub!(/([a-z\d])([A-Z])/,'\1_\2')
  word.tr!("-", "_")
  word.downcase!
  word
end