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Contents
# encoding: utf-8
module EvalHelper
# create attr_accessor + initialize code, for eval
#
# ==== Examples
#
# single case
#
# class EvalHelperAttrAccessorInitTest
# include EvalHelper
#
# def hoge(args)
# attr_accessor_init_code(args)
# end
# end
#
# EvalHelperAttrAccessorInitTest.new.hoge('atr1')
#
# result
#
# attr_accessor :atr1
#
# def initialize(atr1)
# @atr1 = atr1
# end
#
# multi case
#
# class EvalHelperAttrAccessorInitTest
# include EvalHelper
#
# def hoge(args)
# attr_accessor_init_code(args)
# end
# end
#
# EvalHelperAttrAccessorInitTest.new.hoge(['atr1', 'atr2'])
#
# result
#
# attr_accessor :atr1, :atr2
#
# def initialize(atr1, atr2)
# @atr1 = atr1
# @atr2 = atr2
# end
#
def attr_accessor_init_code(attribute)
return '' unless [String, Array].include? attribute.class
atrs = []
if attribute.is_a? String
atrs << attribute
elsif attribute.is_a? Array
atrs = attribute
end
accessors = atrs.reduce([]) { |ret, v|ret << ":#{v}" }.join(', ')
init_variables = atrs.reduce([]) { |ret, v|ret << "#{v}" }.join(', ')
set_variables = atrs.reduce([]) { |ret, v|ret << " @#{v} = #{v}" }.join("\n")
ret_code = <<-EOS
attr_accessor #{accessors}
def initialize(#{init_variables})
#{set_variables}
end
EOS
end
end
Version data entries
84 entries across 84 versions & 1 rubygems