This page provides some tips how to debug Impala/Thorin.

• change log level during debugging

    call thorin::Log::set_min_level(0)
  

• Note that you can output thorin code during debugging:

    call scope.thorin()
    call scope.write_thorin("my_file_scope.thorin")
  
    call world.thorin()
    call world.write_thorin("my_file_world.thorin")
  

• You can also add the following to your ~/.gdbinit file:

    define tos
      call $arg0->to_string()
    end
    document tos
      Call to_string on an object.
    end
    define wrthorin
      call $arg0.thorin()
      call $arg0.write_thorin($arg1)
    end
    document wrthorin
      Write thorin representation to the file given as argument.
    end