Class: IRB::Kit::Handlers::Descender

Inherits:
Abstract
  • Object
show all
Defined in:
lib/irb/kit/handlers/descender.rb

Overview

Handles finding the descendants of a class.

Instance Method Summary collapse

Constructor Details

#initialize(collector: ObjectSpace) ⇒ Descender

Returns a new instance of Descender.



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# File 'lib/irb/kit/handlers/descender.rb', line 8

def initialize(collector: ObjectSpace, **)
  @collector = collector
  super(**)
end

Instance Method Details

#call(name) ⇒ Object 



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# File 'lib/irb/kit/handlers/descender.rb', line 13

def call name
  collect(name).then { |all| all.empty? ? "No descendants found." : all.join("\n") }
               .then { |result| io.puts result }
rescue NameError
  io.puts "ERROR: #{name.inspect} doesn't exist."
end