Can bash read the entire script at once

[Torquil Macdonald Sørensen <torquil@gmail.com>]

Hello, when Bash executes scripts it does not read the next line until 
the command on the current line finishes. This means that problems arise 
if one edits the script while it runs.

Is it possible (in a simple way) to tell Bash to read the entire script 
and then execute it from memory instead, so that I can edit the script 
without affecting a running instance?

Best regards,
Torquil Sørensen