Dirty Go: eliminating vertical space

Having written a lot of Go I sometimes find myself exasperated by functions like this:

because of all the repetition and vertical space. Working on something the other day I realized I could (ab-)use Go's switch like this:

with a small change to the functions being called. Instead of having doFirst (etc.) return an error, have it take a pointer to an error and return a boolean indicating success. That's so much more compact, but feels a little dirty.

PS You can play about with that here.

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