Swift: REPL added

[BuggusMageevers]

Added initial REPL. Needs a little work yet before merge: adds multiple EOF's currently. However, the token's produced are otherwise correct and the REPL can be exited with "quit".

[BuggusMageevers]

@MatsMoll - started an REPL.

[Spongman]

you might want to consider rebasing this PR onto upstream/master to avoid rewriting all that history...

[BuggusMageevers]

You know what, that sounds like a great idea. I'm not really sure how I got my local repo so out of sync though. @Spongman, I'm not great with git. I should be able to just do a rebase and place my changes as the most recent commit?

[Spongman]

yeah, you should be able to do something like:

git stash                      # save any changes in your working dir
git fetch --all                # sync with the server
git checkout master            # switch to local master branch
git reset --hard origin/master # sync with your github repo
git rebase upstream/master     # rebase your changes onto the upstream branch
git push -f                    # force-push to your github repo
git stash pop                  # restore your working dir changes

I use these defaults, ymmv:

git config --global rerere.enabled true
git config --global pull.rebase merges
git config --global rebase.autoStash true
git config --global rebase.autosquash true

[BuggusMageevers]

Thank you, I'll give that a try.

[BuggusMageevers]

Ended up deleting my local, cloning from Prime's repo, applying my changes, committing, and pushing this to my fork. I had not done all that much so it seemed easiest. Should have fixed the history problem.

[MatsMoll]

Nicely done @BuggusMageevers 🚀