Class: IRuby::PryBackend

Inherits:
Object
  • Object
show all
Defined in:
lib/iruby/backend.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ PryBackend

Returns a new instance of PryBackend.



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# File 'lib/iruby/backend.rb', line 17

def initialize
  require 'pry'
  # Monkey patching the Pry bond completer
  ::Pry::BondCompleter.module_eval do
    def self.call(input, options)
      Pry.current[:pry] = options[:pry]
      Bond.agent.call(input, input)
    end
  end
  Pry.pager = false # Don't use the pager
  Pry.print = proc {|output, value|} # No result printing
  Pry.exception_handler = proc {|output, exception, _| }
  @pry = Pry.new(output: $stdout, target: TOPLEVEL_BINDING)
  raise 'Falling back to plain backend since your version of Pry is too old (The Pry instance doesn\'t support #eval).' unless @pry.respond_to?(:eval)
end

Instance Method Details

#complete(line, text) ⇒ Object 



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# File 'lib/iruby/backend.rb', line 40

def complete(line, text)
  @pry.complete(line)
end

#eval(code) ⇒ Object 



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# File 'lib/iruby/backend.rb', line 33

def eval(code)
  @pry.last_result = nil
  @pry.eval(code)
  raise @pry.last_exception if @pry.last_result_is_exception?
  @pry.last_result
end