function
boot.janet on line 2705, column 1
(dofile path &keys {:read read :parser parser :source src :evaluator
evaluator :expander expander :env env :exit exit})
Evaluate a file and return the resulting environment. :env,
:expander, :evaluator, :read, and :parser are passed through to the
underlying run-context call. If exit is true, any top level errors
will trigger a call to (os/exit 1) after printing the error.