Class: Byebug::Skipper::StepsCommand::HackyProcessor

Inherits:
SimpleDelegator
  • Object
show all
Defined in:
lib/byebug/skipper/steps_command.rb

Overview

We need to hijack the #at_line method of the processor, to prevent it from running the REPL when we want it to skip that frame. Sneakily replaces the processor with this wrapped/delegated version, and then unwraps/undelegates when no longer necessary.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.hack_into(context) ⇒ Object 



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# File 'lib/byebug/skipper/steps_command.rb', line 27

def self.hack_into(context)
  hack = new(context.send(:processor))
  context.instance_variable_set(:@processor, hack)
  hack.skip_this_frame!
end

Instance Method Details

#at_line ⇒ Object 



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# File 'lib/byebug/skipper/steps_command.rb', line 42

def at_line
  if Byebug::Skipper.skip?(context.location)
    skip_this_frame! # don't stop, keep running
  else
    unhack!
    super # will stop and show REPL
  end
end

#skip_this_frame! ⇒ Object 



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# File 'lib/byebug/skipper/steps_command.rb', line 37

def skip_this_frame!
  context.step_into(1, context.frame.pos)
  proceed!
end

#unhack! ⇒ Object 



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# File 'lib/byebug/skipper/steps_command.rb', line 33

def unhack!
  context.instance_variable_set(:@processor, __getobj__)
end