6e0b95aaae
Replace SCI's internal interpreter/parser/analyzer pipeline with Jolt-native eval-string that delegates to Jolt's reader and evaluator. All 317 SCI source forms load, 9 namespaces populated, 46 total ns. eval-string result: (+ 1 2 3) → 6, (def x 42) x → 42 Removed edamame/core shim — no longer needed since we bypass the SCI internal eval pipeline entirely.
2.1 KiB
fn* and defmacro now capture defining-ns at definition time and restore it via (ctx-set-current-ns ctx defining-ns) / (ctx-set-current-ns ctx saved-ns) around body evaluation. This ensures symbols in function/macro bodies resolve in the defining namespace, not the calling context. Applies to both multi-arity and single-arity fn* forms.
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Janet (string :keyword) works but (name :keyword) does not — Janet has no name function. Use (string kw) to convert keywords to strings.
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Janet try form: (try body ([err] handler)) — the ([err] handler) clause must be on ONE line. Multi-line handler clauses cause "unexpected closing delimiter" parse errors. Correct: (try (do-stuff) ([err] nil)). Wrong: (try (do-stuff) ([err] nil)) with nil on next line.
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SCI depends on edamame (external Clojure parser) for sci.core/eval-string. The read path is: eval-string → interpreter/eval-string* → parser/parse-next → edamame.core/parse-string. Jolt's reader can't directly replace this without a shim. SCI also requires clojure.tools.reader.reader-types (indexing-push-back-reader, string-push-back-reader).
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:keys destructuring in let* uses :keys keyword (not "keys" string) to look up the vector of keys: {:keys [a b]} → (get pat :keys) returns (a b) tuple where each is a keyword. Bind each using (get val (keyword kname)).
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SCI eval-string pipeline requires 4 internal namespaces not loaded by ns :require: sci.impl.interpreter, sci.impl.parser, sci.impl.analyzer, sci.impl.opts. Their source files must be loaded separately. After loading all 9 SCI source files, these namespaces have 0 bindings. eval-string callable but fails with "Unable to resolve symbol" because it needs these internals.
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Edamame shim lives in core.janet, embedded alongside core bindings. Uses make-string-reader to create @{:s str :pos 0 :line 1 :col 1} reader tables. shim-edamame-eof returns :edamame/eof keyword. init-edamame-shim! takes ctx, parse-str (e.g. Jolt's parse-string), and read-f (e.g. Jolt's read-form) as arguments to avoid requiring ./reader from core.janet. Line/col tracking increments on newline (chr 10).