eval-string in a jpm binary

[evanfarrar]

Can anyone explain to me why eval-string gives me an error error: unknown symbol hello-world when running this jpm built executable?

(def hello-world "heyheyhey")
(defn main [&] (print (eval-string "hello-world")))

(declare-project :name "janettest")
(declare-executable :name "janettest" :entry "init.janet")

I can get it to work in a REPL, but not in a jpm executable. At first I thought the unused symbols were dropped out by tree-shaking, but I do see "heyheyhey" in the generated c code; I've tried a few other ways to ensure the symbol is available at runtime (such as defining it in the main function or explicitly referencing it) but no such luck. I don't know that I need it work, but I'm curious to understand it. Metaprogramming and compilation to compact native binaries are chocolate and peanut butter, I can't imagine not trying to use two great things together in the future.

[sogaiu]

Does this help?

(def hello-world "heyheyhey")

(def ce (curenv))

(defn main [&]
  (print (eval-string "hello-world" ce)))

I think the above was inspired by the coverage of compilation in this chapter of @ianthehenry's book. At least, that's what my subconscious seems to be saying (^^;

Perhaps there is a better way though.

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Note that eval-string got an extra argument recently, so the above may not work in earlier setups.