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require 'set'
require 'concurrent/array'
require 'dry/configurable/settings/argument_parser'
require 'dry/configurable/setting'
require 'dry/configurable/config'
module Dry
module Configurable
# A collection of settings. This is not part of the public API.
#
# @private
class Settings
Parser = ArgumentParser.new.freeze
class DSL
def self.call(&block)
new.instance_exec do
instance_exec(&block)
@settings
end
end
def initialize
@settings = Settings.new
end
def setting(*args, &block)
@settings.add(*args, &block)
end
end
# Capture nested config definition
#
# @return [Dry::Configurable::Setting]
def self.capture(&block)
DSL.(&block)
end
attr_reader :settings
attr_reader :config_class
attr_reader :index
private :index
def initialize(settings = ::Concurrent::Array.new)
@settings = settings
@config_class = Config[self]
@index = settings.map { |s| [s.name, s] }.to_h
yield(self) if block_given?
end
def add(key, value = Undefined, options = Undefined, &block)
extended = singleton_class < Configurable
raise_already_defined_config(key) if extended && configured?
*args, opts = Parser.(value, options, block)
Setting.new(key, *args, { **opts, reserved: reserved?(key) }).tap do |s|
settings.delete_if { |e| e.name.eql?(s.name) }
settings << s
index[s.name] = s
@names = nil
end
end
def each
settings.each { |s| yield(s) }
end
def names
@names ||= index.keys.to_set
end
def [](name)
index[name]
end
def empty?
settings.empty?
end
def name?(name)
index.key?(name)
end
def dup
Settings.new(settings.dup)
end
def freeze
settings.freeze
super
end
def create_config
config_class.new
end
def config_defined?
config_class.config_defined?
end
def reserved?(name)
reserved_names.include?(name)
end
def reserved_names
@reserved_names ||= [
config_class.instance_methods(false),
config_class.superclass.instance_methods(false),
%i(class public_send)
].reduce(:+)
end
end
end
end
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