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Contents
module Intercom
module Lib
class DynamicAccessorsOnMethodMissing
attr_reader :method_sym, :method_string, :arguments, :object, :klass
def initialize(method_sym, *arguments, object)
@method_sym = method_sym
@method_string = method_sym.to_s
@arguments = arguments
@klass = object.class
@object = object
end
def define_accessors_or_call(&block)
return yield if not_an_accessor?
if setter?
Lib::DynamicAccessors.define_accessors(attribute_name, *arguments, object)
object.send(method_sym, *arguments)
else # getter
if trying_to_access_private_variable?
yield
else
raise Intercom::AttributeNotSetError, attribute_not_set_error_message
end
end
end
private
def not_an_accessor?
(method_string.end_with? '?') || (method_string.end_with? '!') || arguments.length > 1
end
def setter?
method_string.end_with? '='
end
def attribute_name
method_string.gsub(/=$/, '')
end
def trying_to_access_private_variable?
object.instance_variable_defined?("@#{method_string}")
end
def attribute_not_set_error_message
"'#{method_string}' called on #{klass} but it has not been set an " +
"attribute or does not exist as a method"
end
end
end
end
Version data entries
32 entries across 32 versions & 2 rubygems