John Merlino wrote in post #1075500:
> Rails code:
>
> Accessors.send :define_method, :"default_#{name}", &block
>
> Accessors.module_eval <<-METHOD, __FILE__, __LINE__ + 1
> def #{name}
> @details.fetch(:#{name}, [])
> end
>
> def #{name}=(value)
> value = value.present? ? Array(value) : default_#{name}
> _set_detail(:#{name}, value) if value != @details[:#{name}]
> end
>
> remove_possible_method :initialize_details
> def initialize_details(details)
> #{initialize.join("\n")}
> end
> METHOD
> end
>
> My question is why not include
> default_#{name} as part of the evaluated string in module_eval, rather
> than invoking send() directly above that using define_method?
>
The variation of module_eval() used in the example takes a String as an
argument. So "default_#{name}" could certainly be inserted in the
String argument because it is a String, but what about the other
argument: &block?
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