Class: ActiveRecord::AttributeMethods::AttributeMethodCache

Inherits:
Object
  • Object
show all
Defined in:
activerecord/lib/active_record/attribute_methods.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ AttributeMethodCache

Returns a new instance of AttributeMethodCache.



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# File 'activerecord/lib/active_record/attribute_methods.rb', line 35

def initialize
  @module = Module.new
  @method_cache = ThreadSafe::Cache.new
end

Instance Method Details

#[](name) ⇒ Object 



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# File 'activerecord/lib/active_record/attribute_methods.rb', line 40

def [](name)
  @method_cache.compute_if_absent(name) do
    safe_name = name.unpack('h*').first
    temp_method = "__temp__#{safe_name}"
    ActiveRecord::AttributeMethods::AttrNames.set_name_cache safe_name, name
    @module.module_eval method_body(temp_method, safe_name), __FILE__, __LINE__
    @module.instance_method temp_method
  end
end