SX spec introspection: the spec examines itself via sx-parse
spec-introspect.sx: pure SX functions that read, parse, and analyze spec files. No Python. The spec IS data — a macro transforms it into explorer UI components. - spec-explore: reads spec file via IO, parses with sx-parse, extracts sections/defines/effects/params, produces explorer data dict - spec-form-name/kind/effects/params/source: individual extractors - spec-group-sections: groups defines into sections - spec-compute-stats: aggregate effect/define counts OCaml kernel fixes: - nth handles strings (character indexing for parser) - ident-start?, ident-char?, char-numeric?, parse-number: platform primitives needed by spec/parser.sx when loaded at runtime - _find_spec_file: searches spec/, web/, shared/sx/ref/ for spec files 83/84 Playwright tests pass. The 1 failure is client-side re-rendering of the spec explorer (the client evaluates defpage content which calls find-spec — unavailable on the client). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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@@ -230,13 +230,14 @@
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`(~specs/not-found :slug ,slug)))))))
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;; Spec explorer (under language → spec)
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;; Uses spec-explore from spec-introspect.sx — the spec examines itself.
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(define explore
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(fn (slug)
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(if (nil? slug)
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'(~specs/architecture-content)
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(let ((found-spec (find-spec slug)))
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(if found-spec
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(let ((data (helper "spec-explorer-data"
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(let ((data (spec-explore
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(get found-spec "filename")
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(get found-spec "title")
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(get found-spec "desc"))))
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186
sx/sx/spec-introspect.sx
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186
sx/sx/spec-introspect.sx
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@@ -0,0 +1,186 @@
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;; ---------------------------------------------------------------------------
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;; Spec Introspection — SX macro that reads a spec file and produces
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;; structured explorer data. The spec examines itself.
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;; ---------------------------------------------------------------------------
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;;
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;; Usage: (spec-explore "evaluator.sx" "Evaluator" "CEK machine evaluator")
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;;
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;; Returns a dict with :title, :filename, :desc, :sections, :stats
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;; suitable for (~specs-explorer/spec-explorer-content :data result)
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;; Extract the name from a define/defcomp/defmacro/defisland form
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(define spec-form-name
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(fn (form)
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(if (< (len form) 2) nil
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(let ((head (symbol-name (first form)))
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(name-part (nth form 1)))
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(cond
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(= head "define")
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(if (= (type-of name-part) "symbol")
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(symbol-name name-part)
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nil)
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(or (= head "defcomp") (= head "defisland") (= head "defmacro"))
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(if (= (type-of name-part) "symbol")
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(symbol-name name-part)
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nil)
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:else nil)))))
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;; Extract effects annotation from a define form
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;; (define name :effects [mutation io] (fn ...))
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(define spec-form-effects
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(fn (form)
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(let ((result (list))
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(found false))
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(when (> (len form) 3)
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(for-each
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(fn (item)
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(if found
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(when (and (list? item) (empty? result))
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(for-each
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(fn (eff)
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(append! result (if (= (type-of eff) "symbol")
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(symbol-name eff)
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(str eff))))
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item)
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(set! found false))
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(when (and (= (type-of item) "keyword")
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(= (keyword-name item) "effects"))
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(set! found true))))
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(slice form 2)))
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result)))
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;; Extract params from a fn/lambda body within a define
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(define spec-form-params
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(fn (form)
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(if (< (len form) 2) (list)
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(let ((body (nth form (- (len form) 1))))
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(if (and (list? body) (> (len body) 1)
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(= (type-of (first body)) "symbol")
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(or (= (symbol-name (first body)) "fn")
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(= (symbol-name (first body)) "lambda")))
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;; (fn (params...) body)
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(let ((raw-params (nth body 1)))
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(if (list? raw-params)
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(map (fn (p)
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(cond
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(= (type-of p) "symbol")
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{:name (symbol-name p) :type nil}
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(and (list? p) (>= (len p) 3)
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(= (type-of (first p)) "symbol"))
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{:name (symbol-name (first p))
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:type (if (and (>= (len p) 3)
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(= (type-of (nth p 2)) "symbol"))
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(symbol-name (nth p 2))
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nil)}
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:else {:name (str p) :type nil}))
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raw-params)
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(list)))
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(list))))))
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;; Classify a form: "function", "constant", "component", "macro", "island"
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(define spec-form-kind
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(fn (form)
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(let ((head (symbol-name (first form))))
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(cond
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(= head "defcomp") "component"
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(= head "defisland") "island"
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(= head "defmacro") "macro"
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(= head "define")
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(let ((body (last form)))
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(if (and (list? body) (> (len body) 0)
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(= (type-of (first body)) "symbol")
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(or (= (symbol-name (first body)) "fn")
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(= (symbol-name (first body)) "lambda")))
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"function"
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"constant"))
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:else "unknown"))))
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;; Serialize a form back to SX source for display
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(define spec-form-source
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(fn (form)
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(serialize form)))
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;; Group forms into sections based on comment headers
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;; Returns list of {:title :comment :defines}
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(define spec-group-sections
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(fn (forms source)
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(let ((sections (list))
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(current-title "Definitions")
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(current-comment nil)
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(current-defines (list)))
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;; Extract section comments from source
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;; Look for ";; section-name" or ";; --- section ---" patterns
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(for-each
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(fn (form)
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(when (and (list? form) (> (len form) 1))
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(let ((name (spec-form-name form)))
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(when name
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(append! current-defines
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{:name name
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:kind (spec-form-kind form)
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:effects (spec-form-effects form)
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:params (spec-form-params form)
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:source (spec-form-source form)
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:python nil
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:javascript nil
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:z3 nil
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:refs (list)
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:tests (list)
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:test-count 0})))))
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forms)
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;; Flush last section
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(when (not (empty? current-defines))
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(append! sections
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{:title current-title
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:comment current-comment
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:defines current-defines}))
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sections)))
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;; Compute stats from sections
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(define spec-compute-stats
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(fn (sections source)
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(let ((total 0)
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(pure 0)
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(mutation 0)
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(io 0)
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(render 0)
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(lines (len (split source "\n"))))
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(for-each
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(fn (section)
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(for-each
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(fn (d)
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(set! total (inc total))
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(if (empty? (get d "effects"))
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(set! pure (inc pure))
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(for-each
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(fn (eff)
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(cond
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(= eff "mutation") (set! mutation (inc mutation))
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(= eff "io") (set! io (inc io))
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(= eff "render") (set! render (inc render))))
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(get d "effects"))))
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(get section "defines")))
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sections)
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{:total-defines total
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:pure-count pure
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:mutation-count mutation
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:io-count io
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:render-count render
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:test-total 0
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:lines lines})))
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;; Main entry point: read, parse, analyze a spec file
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(define spec-explore :effects [io]
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(fn (filename title desc)
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(let ((source (helper "read-spec-file" filename)))
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(if (starts-with? source ";; spec file not found")
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nil
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(let ((forms (sx-parse source))
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(sections (spec-group-sections forms source))
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(stats (spec-compute-stats sections source)))
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{:filename filename
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:title title
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:desc desc
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:sections sections
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:stats stats
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:platform-interface (list)})))))
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