Class: DepsGrapher::DSL

Inherits:
Object
  • Object
show all
Defined in:
lib/deps_grapher/dsl.rb

Instance Method Summary collapse

Constructor Details

#initialize(obj) ⇒ DSL

Returns a new instance of DSL.



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# File 'lib/deps_grapher/dsl.rb', line 5

def initialize(obj)
  @obj = obj
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(symbol, *args, &block) ⇒ Object (private) 



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# File 'lib/deps_grapher/dsl.rb', line 19

def method_missing(symbol, *args, &block)
  ["#{symbol}=", symbol].each do |method_name|
    next unless @obj.respond_to?(method_name)

    parameters = @obj.method(method_name).parameters

    return @obj.send(method_name) if parameters.empty?

    if parameters.size == 1
      parameter = parameters.first
      case parameter[0]
      when :req, :opt
        return @obj.send(method_name, args.first.freeze)
      when :block
        return @obj.send(method_name, &block)
      else
        raise ArgumentError, "unsupported parameter type: #{parameter[0]}"
      end
    end

    next unless parameters.size == 2

    arg_type_1st, arg_type_2nd = parameters.flat_map(&:first)
    return @obj.send(method_name, args.first.freeze, &block) if %i[req opt].include?(arg_type_1st) && arg_type_2nd == :block

    raise ArgumentError, "unsupported parameter types: #{arg_type_1st}, #{arg_type_2nd}"
  end

  super
end

Instance Method Details

#respond_to_missing?(symbol, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deps_grapher/dsl.rb', line 9

def respond_to_missing?(symbol, include_private = false)
  ["#{symbol}=", symbol].each do |method_name|
    return true if @obj.respond_to?(method_name)
  end

  super
end