Class: ActiveSupport::Dependencies::WatchStack

Inherits:
Array show all
Defined in:
lib/active_support/dependencies.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Array

#as_json, #encode_json, #extract_options!, #fifth, #forty_two, #fourth, #from, #in_groups, #in_groups_of, #sample, #second, #split, #third, #to, #to_formatted_s, #to_param, #to_query, #to_sentence, #to_xml, #uniq_by, #uniq_by!, wrap

Constructor Details

#initialize ⇒ WatchStack

Returns a new instance of WatchStack.



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# File 'lib/active_support/dependencies.rb', line 67

def initialize
  @mutex = Mutex.new
end

Class Method Details

.locked(*methods) ⇒ Object 



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# File 'lib/active_support/dependencies.rb', line 71

def self.locked(*methods)
  methods.each { |m| class_eval "def #{m}(*) lock { super } end", __FILE__, __LINE__ }
end

Instance Method Details

#add_modules(modules) ⇒ Object

Add a set of modules to the watch stack, remembering the initial constants



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# File 'lib/active_support/dependencies.rb', line 98

def add_modules(modules)
  list = modules.map do |desc|
    name = Dependencies.to_constant_name(desc)
    consts = Dependencies.qualified_const_defined?(name) ?
      Inflector.constantize(name).local_constant_names : []
    [name, consts]
  end
  concat(list)
  list
end

#get(key) ⇒ Object 



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# File 'lib/active_support/dependencies.rb', line 75

def get(key)
  (val = assoc(key)) ? val[1] : []
end

#lock ⇒ Object 



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# File 'lib/active_support/dependencies.rb', line 109

def lock
  @mutex.synchronize { yield self }
end

#new_constants_for(frames) ⇒ Object 



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# File 'lib/active_support/dependencies.rb', line 81

def new_constants_for(frames)
  constants = []
  frames.each do |mod_name, prior_constants|
    mod = Inflector.constantize(mod_name) if Dependencies.qualified_const_defined?(mod_name)
    next unless mod.is_a?(Module)

    new_constants = mod.local_constant_names - prior_constants
    get(mod_name).concat(new_constants)

    new_constants.each do |suffix|
      constants << ([mod_name, suffix] - ["Object"]).join("::")
    end
  end
  constants
end