Create a new Run Script Phase
in your target's Build Phase
TAGS="TODO:|FIXME:"
echo "searching ${SRCROOT} for ${TAGS}"
find "${SRCROOT}" \( -name "*.swift" \) -print0 | xargs -0 egrep --with-filename --line-number --only-matching "($TAGS).*\$" | perl -p -e "s/($TAGS)/ warning: \$1/"
If your code needs commenting, it isn’t clear enough, but TODO: and FIXME: is the exception.
Happy codeing.