48e2ef5910
Rephrase comments that pointed at deleted Janet files (emit.janet, the seed
sources, 'the Janet back end punts ...') to present-tense descriptions of the
Chez behavior. Comment/docstring-only; the self-host fixpoint is unchanged
(comments don't affect the compiled seed).
Delete five files that were Janet-host shims with no Chez path: clojure.java.io
(provided natively by host/chez/io.ss), and jolt.{nrepl,png,interop,shell}
(the janet.* bridge, os/shell, janet.net — none exist on Chez).
jolt-cf1q.6
91 lines
4.5 KiB
Scheme
91 lines
4.5 KiB
Scheme
;; natives-parity.ss (jolt-cf1q.7) — native Chez shims for clojure.core fns that
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;; had no Chez shim, so they resolved to nil ("not a fn"). Pure-Chez, JVM-matching.
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;;
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;; Loaded after host-table.ss (htable-sorted?), transients.ss (jolt-transient?),
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;; values.ss (jolt-hash), seq.ss (jolt-seq/seq->list/list->cseq/jolt-invoke).
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;; --- hash family (24-bit masked so int? holds) ------
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(define (np-h24 x) (bitwise-and (jolt-hash x) #xffffff))
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(define (np-hash x) (np-h24 x))
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(define (np-hash-combine a b)
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(bitwise-and (bitwise-xor (np-h24 a) (+ (np-h24 b) #x9e3779)) #xffffff))
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(define (np-hash-ordered-coll coll)
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(let loop ((xs (seq->list (jolt-seq coll))) (h 1))
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(if (null? xs) h (loop (cdr xs) (bitwise-and (+ (* 31 h) (np-h24 (car xs))) #xffffff)))))
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(define (np-hash-unordered-coll coll)
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(let loop ((xs (seq->list (jolt-seq coll))) (h 0))
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(if (null? xs) h (loop (cdr xs) (bitwise-and (+ h (np-h24 (car xs))) #xffffff)))))
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;; --- transient? ---------------------------------------------------------------
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(define (np-transient? x) (jolt-transient? x))
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;; --- rseq: vectors + sorted colls only (Clojure), reverse of the ascending seq.
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(define (np-rseq coll)
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(if (or (pvec? coll) (htable-sorted? coll))
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(list->cseq (reverse (seq->list (jolt-seq coll))))
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(jolt-throw (jolt-ex-info "rseq requires a vector or sorted collection" (jolt-hash-map)))))
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;; --- cat transducer: each item of the input
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;; is itself a collection, concatenated into the downstream reducing fn.
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(define (np-cat rf)
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(lambda a
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(cond
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((null? a) (jolt-invoke rf))
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((null? (cdr a)) (jolt-invoke rf (car a)))
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(else
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(let loop ((xs (seq->list (jolt-seq (cadr a)))) (acc (car a)))
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(if (null? xs) acc (loop (cdr xs) (jolt-invoke rf acc (car xs)))))))))
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;; --- reader feature set (for #?() conditionals) — mutable list of name strings,
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;; default jolt + default. __reader-features returns the strings; -set! replaces.
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(define np-reader-features (list "jolt" "default"))
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(define (np-reader-features-get) (list->cseq np-reader-features))
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(define (np-reader-features-set! names)
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(set! np-reader-features
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(map (lambda (n) (cond ((keyword-t? n) (keyword-t-name n)) ((string? n) n) (else (jolt-pr-str n))))
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(seq->list (jolt-seq names))))
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jolt-nil)
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;; --- reader-conditional / re-matcher: tagged maps (reader-conditional? + the
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;; matcher consumers are overlay tagged-value predicates that read :jolt/type).
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(define np-kw-type (keyword "jolt" "type"))
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(define np-kw-rc (keyword "jolt" "reader-conditional"))
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(define np-kw-form (keyword #f "form"))
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(define np-kw-spl (keyword #f "splicing?"))
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(define np-kw-mat (keyword "jolt" "matcher"))
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(define np-kw-re (keyword #f "re"))
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(define np-kw-s (keyword #f "s"))
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(define np-kw-pos (keyword #f "pos"))
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(define (np-reader-conditional form splicing?)
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(jolt-hash-map np-kw-type np-kw-rc np-kw-form form np-kw-spl splicing?))
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(define (np-re-matcher re s)
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(jolt-hash-map np-kw-type np-kw-mat np-kw-re re np-kw-s s np-kw-pos 0.0))
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;; (delay? / make-delay / force live in concurrency.ss with the real delay type.)
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;; --- macroexpand-1 / macroexpand: expand a (quoted) call form via the runtime
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;; macro table (host-contract hc-macro?/hc-expand-1; forward-referenced, resolved
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;; at call time after the spine loads). macroexpand loops until the head is no
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;; longer a macro (subforms are not expanded, matching Clojure).
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(define (np-macroexpand-1 form)
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(if (and (cseq? form) (cseq-list? form) (symbol-t? (seq-first form)))
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(let ((ctx (make-analyze-ctx (chez-current-ns))))
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(if (hc-macro? ctx (seq-first form)) (hc-expand-1 ctx form) form))
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form))
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(define (np-macroexpand form)
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(let loop ((cur form))
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(let ((nxt (np-macroexpand-1 cur))) (if (eq? cur nxt) cur (loop nxt)))))
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(def-var! "clojure.core" "hash" np-hash)
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(def-var! "clojure.core" "hash-combine" np-hash-combine)
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(def-var! "clojure.core" "hash-ordered-coll" np-hash-ordered-coll)
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(def-var! "clojure.core" "hash-unordered-coll" np-hash-unordered-coll)
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(def-var! "clojure.core" "transient?" np-transient?)
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(def-var! "clojure.core" "rseq" np-rseq)
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(def-var! "clojure.core" "cat" np-cat)
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(def-var! "clojure.core" "__reader-features" np-reader-features-get)
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(def-var! "clojure.core" "__reader-features-set!" np-reader-features-set!)
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(def-var! "clojure.core" "reader-conditional" np-reader-conditional)
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(def-var! "clojure.core" "re-matcher" np-re-matcher)
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(def-var! "clojure.core" "macroexpand-1" np-macroexpand-1)
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(def-var! "clojure.core" "macroexpand" np-macroexpand)
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