switch to source editor on error

Dependencies

• [2] DMS3N5YD undo an ancient hack; be an idiomatic LÖVE app
• [3] CUFW4EJL reorganize app.lua and its comments
• [4] 3QNOKBFM beginnings of a test harness
• [5] DJSIRUMD a more radical attempt at ignoring nil y's
• [6] AGJXIDOF hardcode some assumptions about how this app uses love
• [*] AVTNUQYR basic test-enabled framework

Change contents

• edit in app.lua at line 5
  [3.69]

  [3.69]
  + -- * recover from errors (by switching to the source editor)
• replacement in app.lua at line 28
  [4.440]→[4.440:481](∅→∅)
  − love.handlers[name](a,b,c,d,e,f)
  [4.440]

  [4.481]
  + xpcall(function() love.handlers[name](a,b,c,d,e,f) end, handle_error)
• replacement in app.lua at line 33
  [2.59]→[2.59:78](∅→∅)
  − App.update(dt)
  [2.59]

  [2.78]
  + xpcall(function() App.update(dt) end, handle_error)
• replacement in app.lua at line 37
  [4.273]→[4.273:288](∅→∅)
  − App.draw()
  [4.273]

  [4.288]
  + xpcall(App.draw, handle_error)
• edit in app.lua at line 44
  [8.2551]

  [3.305]
  + function handle_error(err)

  + Error_message = debug.traceback('Error: ' .. tostring(err), --[[stack frame]]2):gsub('\n[^\n]+$', '')

  + print(Error_message)

  + if Current_app == 'run' then

  + Settings.current_app = 'source'

  + love.filesystem.write('config', json.encode(Settings))

  + load_file_from_source_or_save_directory('main.lua')

  + App.undo_initialize()

  + App.run_tests_and_initialize()

  + else

  + love.event.quit()

  + end

  + end

  +