Module: PryExceptionExplorer::CoreExtensions

Included in:
Object
Defined in:
lib/pry-exception_explorer/core_ext.rb

Instance Method Summary collapse

Instance Method Details

#raise(*args) ⇒ Object

We monkey-patch the raise method so we can intercept exceptions



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# File 'lib/pry-exception_explorer/core_ext.rb', line 64

def raise(*args)
  exception, string, array = args

  if exception.is_a?(String)
    string = exception
    exception = RuntimeError
  end

  if exception.is_a?(Exception) || (exception.is_a?(Class) && exception < Exception)
    if PryExceptionExplorer.enabled?
      ex = string ? exception.exception(string) : exception.exception
    else
      return super(*args)
    end
  elsif exception.nil?
    if $!
      if PryExceptionExplorer.enabled?
        ex = $!.exception
      else
        return super($!)
      end
    else
      if PryExceptionExplorer.enabled?
        ex = RuntimeError.exception
      else
        return super(RuntimeError)
      end
    end
  else
    if PryExceptionExplorer.enabled?
      ex = RuntimeError.exception
    else
      return super(*args)
    end
  end

  ex.set_backtrace(array ? array : caller)

  intercept_object = PryExceptionExplorer.intercept_object

  if PryExceptionExplorer.should_intercept_exception?(binding.of_caller(1), ex)

    ex.exception_call_stack = binding.callers.tap { |v| v.shift(1 + intercept_object.skip_num) }
    PryExceptionExplorer.amend_exception_call_stack!(ex)

    ex.should_intercept  = true

    if PryExceptionExplorer.inline?
      retval = PryExceptionExplorer.enter_exception(ex, :inline => true)
    end
  end

  if retval != PryExceptionExplorer::CONTINUE_INLINE_EXCEPTION
    callcc do |cc|
      ex.continuation = cc
      super(ex)
    end
  end
end