61 lines
1.6 KiB
Plaintext
61 lines
1.6 KiB
Plaintext
# an integrated Ludus interpreter
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(try (os/cd "janet") ([_] nil)) # for REPL
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(import /scanner :as s)
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(import /parser :as p)
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(import /validate :as v)
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(import /interpreter :as i)
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(import /errors :as e)
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(import /base :as b)
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(import /load-prelude :as prelude)
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(import spork/json :as j)
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(comment
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The API from the old Clojure Ludus interpreter returns an object with four fields:
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* `console`: an array of lines to be printed to the console
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* `result`: a string representation of the result of running the script
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* `draw`: an array of arrays that represent p5 calls, e.g. `["line", 0, 0, 100, 100]`
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* `errors`: an array of errors, which are just strings
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This new scene will have to return a JSON POJSO:
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{:console "..." :result "..." :draw [...] :errors [...]}
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)
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(defn run [source]
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(def ctx @{:^parent prelude/ctx})
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(def errors @[])
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(def draw @[])
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(var result @"")
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(def console @"")
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(def out @{:errors errors :draw draw :result result :console console})
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(def scanned (s/scan source))
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(when (any? (scanned :errors))
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(break (do
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(each err (scanned :errors)
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(e/scan-error err)))))
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(def parsed (p/parse scanned))
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(when (any? (parsed :errors))
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(break (each err (parsed :errors)
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(e/parse-error err))))
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(def validated (v/valid parsed ctx))
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(when (any? (validated :errors))
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(break (each err (validated :errors)
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(e/validation-error err))))
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(setdyn :out console)
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(print "starting ludus run")
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(try
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(set result (b/show (i/interpret (parsed :ast) ctx)))
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([err] (setdyn :out stdout) (e/runtime-error err)))
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(setdyn :out stdout)
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(set (out :result) result)
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result)
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(do
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(def source `
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`)
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(-> source run)
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)
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