Class: Hinge::Resolver::Node

Inherits:
Object
  • Object
show all
Defined in:
lib/hinge/resolver.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, container) ⇒ Node

Returns a new instance of Node.



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# File 'lib/hinge/resolver.rb', line 56

def initialize(name, container)
  @name = name
  @method_name = "build_#{@name}"
  @method =
    begin
      container.method(@method_name)
    rescue NameError
      nil
    end

  if @method
    @dependency_names = []
    @positional_args_count = 0
    @keyword_arg_names = []

    @method.parameters.each do |kind, argument_name|
      argument_name = argument_name.to_sym
      @dependency_names << argument_name
      case kind
      when :req
        @positional_args_count += 1
      when :keyreq
        @keyword_arg_names << argument_name
      end
    end
  end
end

Instance Attribute Details

#dependency_names ⇒ Object (readonly)

Returns the value of attribute dependency_names.



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# File 'lib/hinge/resolver.rb', line 83

def dependency_names
  @dependency_names
end

#method ⇒ Object (readonly)

Returns the value of attribute method.



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# File 'lib/hinge/resolver.rb', line 83

def method
  @method
end

#method_name ⇒ Object (readonly)

Returns the value of attribute method_name.



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# File 'lib/hinge/resolver.rb', line 83

def method_name
  @method_name
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/hinge/resolver.rb', line 83

def name
  @name
end

Instance Method Details

#invoke(ordered_values) ⇒ Object 



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# File 'lib/hinge/resolver.rb', line 85

def invoke(ordered_values)
  splat = ordered_values.take(@positional_args_count)
  splat << Hash[
    @keyword_arg_names.zip(ordered_values.drop(@positional_args_count))
  ] if @keyword_arg_names.any?
  @method.call(*splat)
end