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# File 'lib/flagist.rb', line 36
def flagist
flagist = @flagist ||= {}
if block_given?
yield ::Flagist::Definer.new(self,flagist)
self.class.class_eval do
flagist.each do |method,info|
{value: "", name: "_name", label: "_label"}.each do |prop,suffix|
define_method :"#{method}#{suffix}" do |args|
if args.respond_to?(:map)
args_is_array = true
wrapped_args = args
else
wrapped_args = [args]
end
result = wrapped_args.map{|arg|
value, flag = flagist[method][:flags].find{|value,flag|
value == arg ||
flag[:name] == arg ||
(arg.respond_to?(:to_sym) && flag[:name] == arg.to_sym) ||
flag[:label] == arg
}
unless flag
::Flagist::UnknownFlagError.raise_by method, "value", arg
end
flag[prop]
}
if args_is_array
result
else
result.first
end
end
end
%i(name label).each do |prop|
define_method :"#{method}_#{prop}s" do
flagist[method][:flags].each.map{|value,flag| [value,flag[prop]]}.to_h
end
define_method :"#{method}_#{prop}s_inverse" do
flagist[method][:flags].each.map{|value,flag| [flag[prop],value]}.to_h
end
end
end
end
instance_methods = Module.new
instance_methods.class_eval do
flagist.each do |method,info|
{value: "", name: "_name", label: "_label"}.each do |prop,suffix|
define_method :"#{method}#{suffix}" do |*all_args|
if all_args.size > 1
raise ::ArgumentError, "wrong number of arguments (given #{all_args.size}, expected 0..1)"
end
if all_args.size > 0
args = all_args.first
else
if prop == :value
return super()
end
args = __send__ method
if info[:type] == :array
if args.respond_to?(:split)
args = args.split(",")
end
end
end
self.class.__send__(:"#{method}#{suffix}", args).freeze
end
end
%i(name label).each do |prop|
["","_inverse"].each do |suffix|
define_method :"#{method}_#{prop}s#{suffix}" do
self.class.__send__ :"#{method}_#{prop}s#{suffix}"
end
end
define_method :"#{method}_#{prop}=" do |new_values|
if info[:type] != :array
new_values = [new_values]
end
result = new_values.map{|new_value|
value, flag = flagist[method][:flags].find{|value,flag| flag[prop] == new_value}
unless flag
::Flagist::UnknownFlagError.raise_by method, prop, new_value
end
value
}
if info[:type] == :array
result = result.join(",")
else
result = result.first
end
__send__ :"#{method}=", result
end
end
end
end
self.__send__ :prepend, instance_methods
end
flagist
end
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