Module: PryNav

Defined in:

lib/pry-nav.rb,
lib/pry-nav/tracer.rb,
lib/pry-nav/version.rb,
lib/pry-nav/commands.rb

Defined Under Namespace

Classes: Tracer

Constant Summary

TRACE_IGNORE_FILES =

Dir[File.join(File.dirname(__FILE__), '**', '*.rb')]

VERSION =

'0.0.3'

Commands =

Pry::CommandSet.new do
  command 'step', 'Step execution into the next line or method.' do |steps|
    check_local_context
    breakout_navigation :step, steps
  end

  command 'next', 'Execute the next line within the same stack frame.' do |lines|
    check_local_context
    breakout_navigation :next, lines
  end

  command 'continue', 'Continue program execution and end the Pry session.' do
    run 'exit-all'
  end

  alias_command 'n', 'next'
  alias_command 's', 'step'
  alias_command 'c', 'continue'

  helpers do
    def breakout_navigation(action, times)
      _pry_.binding_stack.clear     # Clear the binding stack.
      throw :breakout_nav, {        # Break out of the REPL loop and
        action: action,             #   signal the tracer.
        times:  times
      }
    end

    # Checks that a command is executed in a local file context. Extracted
    # from https://github.com/pry/pry/blob/master/lib/pry/default_commands/context.rb
    def check_local_context
      file = target.eval('__FILE__')
      if file != Pry.eval_path && (file =~ /(\(.*\))|<.*>/ || file == '' || file == '-e')
        raise Pry::CommandError, 'Cannot find local context. Did you use `binding.pry`?'
      end
    end
  end
end