Bring preserve.rkt up to spec
This commit is contained in:
Tony Garnock-Jones
parent
780bc6fec2
commit
240cee9d52
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@ -1,17 +1,31 @@
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#lang racket/base
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;; Preserve, as in Fruit Preserve, as in a remarkably weak pun on pickling/dehydration etc
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(provide encode
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(provide (struct-out stream-of)
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(struct-out record)
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short-form-labels
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encode
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decode
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wire-value)
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(require racket/bytes)
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(require racket/dict)
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(require racket/generator)
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(require racket/match)
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(require racket/set)
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(require bitsyntax)
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(require syndicate/support/struct)
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(require imperative-syndicate/assertions)
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(require imperative-syndicate/pattern)
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(struct stream-of (kind generator) #:transparent)
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(struct record (label fields) #:transparent)
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(define short-form-labels
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(make-parameter (vector 'discard 'capture 'observe)))
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(define version 1)
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(define (encode v)
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@ -32,32 +46,6 @@
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[(_ #t input ks kf) (decode-wire-length input ks kf)]
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[(_ #f v) (encode-wire-length v)]))
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;; MM NN LLLL
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;;
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;; 00 00 0000 discard
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;; 00 01 0001 capture
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;; 00 10 0001 observe
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;; 00 11 nnnn any other struct
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;;
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;; 01 00 nnnn list
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;; 01 01 nnnn vector
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;;
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;; 10 00 nnnn signed integer, bigendian
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;; 10 01 nnnn string
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;; 10 10 nnnn bytes
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;; 10 11 nnnn symbol
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;;
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;; 11 00 0000 #f
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;; 11 00 0001 #t
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;; 11 00 0010 (32 bits) single
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;; 11 00 0011 (64 bits) double
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;;
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;; When nnnn = 1111, following bytes are real length
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;;
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;; The following bytes are a chain of big-endian, high-bit-continuation-bit chunks
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;;---------------------------------------------------------------------------
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(define (encode-wire-length v)
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(when (negative? v) (error 'encode-wire-length "Cannot encode negative wire-length ~v" v))
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(if (< v #b1111)
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@ -76,40 +64,75 @@
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((length fields) :: (wire-length))
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((apply bit-string-append (map encode-value fields)) :: binary)))
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(define (encode-binary-like minor bs)
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(bit-string (#b10 :: bits 2)
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(define (encode-binary-like major minor bs)
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(bit-string (major :: bits 2)
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(minor :: bits 2)
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((bytes-length bs) :: (wire-length))
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(bs :: binary)))
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(define (encode-start-byte major minor)
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(bit-string (#b0010 :: bits 4) (major :: bits 2) (minor :: bits 2)))
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(define (encode-end-byte major minor)
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(bit-string (#b0011 :: bits 4) (major :: bits 2) (minor :: bits 2)))
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(define (encode-stream major minor chunk-ok? generator)
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(bit-string-append (encode-start-byte major minor)
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(let loop ()
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(match (generator)
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[(? void?) #""]
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[(? chunk-ok? v) (bit-string-append (encode-value v) (loop))]
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[bad (error 'encode-stream "Cannot encode chunk: ~v" bad)]))
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(encode-end-byte major minor)))
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(define (dict-keys-and-values d)
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(reverse (for/fold [(acc '())] [((k v) (in-dict d))] (cons k (cons v acc)))))
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(define (short-form-for-label key)
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(let ((labels (short-form-labels)))
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(let loop ((i 0))
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(cond [(= i 3) #f]
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[(equal? (vector-ref labels i) key) i]
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[else (loop (+ i 1))]))))
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(define (encode-record key fields)
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(define short (short-form-for-label key))
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(if short
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(encode-array-like 2 short fields)
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(encode-array-like 2 3 (cons key fields))))
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(define (encode-value v)
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(match v
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[(discard) (encode-array-like 0 0 '())]
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[(capture s) (encode-array-like 0 1 (list s))]
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[(observe s) (encode-array-like 0 2 (list s))]
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[(? non-object-struct?)
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(define key (prefab-struct-key v))
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(when (not key) (error 'encode-value "Cannot encode non-prefab struct ~v" v))
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(define fields (cdr (vector->list (struct->vector v))))
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(encode-array-like 0 3 (cons key fields))]
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[#f (bytes #b00000000)]
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[#t (bytes #b00000001)]
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[(? single-flonum?) (bit-string #b00000010 (v :: float bits 32))]
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[(? double-flonum?) (bit-string #b00000011 (v :: float bits 64))]
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[(? integer? x) #:when (<= -3 x 12) (bit-string (#b0001 :: bits 4) (x :: bits 4))]
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[(stream-of 'string p) (encode-stream 1 1 bytes? p)]
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[(stream-of 'byte-string p) (encode-stream 1 2 bytes? p)]
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[(stream-of 'symbol p) (encode-stream 1 3 bytes? p)]
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[(stream-of 'sequence p) (encode-stream 3 0 (lambda (x) #t) p)]
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[(stream-of 'set p) (encode-stream 3 1 (lambda (x) #t) p)]
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[(stream-of 'dictionary p) (encode-stream 3 2 (lambda (x) #t) p)]
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[(? list?) (encode-array-like 1 0 v)]
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[(? vector?) (encode-array-like 1 1 (vector->list v))]
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[(? single-flonum?) (bit-string #b11000010 (v :: float bits 32))]
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[(? double-flonum?) (bit-string #b11000011 (v :: float bits 64))]
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[0 (bytes #b10000000)]
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;; [0 (bytes #b10000000)]
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[(? integer?)
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(define raw-bit-count (+ (integer-length v) 1)) ;; at least one sign bit
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(define byte-count (quotient (+ raw-bit-count 7) 8))
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(bit-string (#b1000 :: bits 4) (byte-count :: (wire-length)) (v :: integer bytes byte-count))]
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[(? string?) (encode-binary-like 1 (string->bytes/utf-8 v))]
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[(? bytes?) (encode-binary-like 2 v)]
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[(? symbol?) (encode-binary-like 3 (string->bytes/utf-8 (symbol->string v)))]
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(bit-string (#b0100 :: bits 4) (byte-count :: (wire-length)) (v :: integer bytes byte-count))]
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[(? string?) (encode-binary-like 1 1 (string->bytes/utf-8 v))]
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[(? bytes?) (encode-binary-like 1 2 v)]
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[(? symbol?) (encode-binary-like 1 3 (string->bytes/utf-8 (symbol->string v)))]
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[#f (bytes #b11000000)]
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[#t (bytes #b11000001)]
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[(record label fields) (encode-record label fields)]
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[(? non-object-struct?)
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(define key (prefab-struct-key v))
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(when (not key) (error 'encode-value "Cannot encode non-prefab struct ~v" v))
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(encode-record key (cdr (vector->list (struct->vector v))))]
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[(? list?) (encode-array-like 3 0 v)]
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[(? set?) (encode-array-like 3 1 (set->list v))]
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[(? dict?) (encode-array-like 3 2 (dict-keys-and-values v))]
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[_ (error 'encode-value "Cannot encode value ~v" v)]))
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@ -144,52 +167,88 @@
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(decode-values (- n 1) (cons v acc-rev) rest ks kf))
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(else (kf)))))
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(define (decode-binary minor bs rest ks kf)
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(match minor
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[0 (if (positive? (bit-string-length bs))
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(ks (bit-string->signed-integer bs #t) rest)
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(ks 0 rest))]
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[2 (ks bs rest)]
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[(or 1 3)
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((with-handlers [(exn:fail:contract? (lambda (e) kf))]
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(define s (bytes->string/utf-8 bs))
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(lambda () (ks (if (= minor 3) (string->symbol s) s) rest))))]))
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(define (decode-record minor fields rest ks kf)
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(define (build key fs)
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(ks (with-handlers [(exn:fail:contract? (lambda (e) (record key fs)))]
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(apply make-prefab-struct key fs))
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rest))
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(match* (minor fields)
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[(3 (list* key fs)) (build key fs)]
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[(3 '()) (kf)]
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[(n fs) (build (vector-ref (short-form-labels) n) fs)]))
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(define (decode-collection minor vs rest ks kf)
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(match minor
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[0 (ks vs rest)]
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[1 (ks (list->set vs) rest)]
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[2 (if (even? (length vs))
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(ks (apply hash vs) rest)
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(kf))]
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[_ (kf)]))
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(define (decode-stream major minor chunk-ok? join-chunks decode rest ks kf)
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(let loop ((acc-rev '()) (rest rest))
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(bit-string-case rest
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([ (= #b0011 :: bits 4) (emajor :: bits 2) (eminor :: bits 2) (rest :: binary) ]
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(if (and (= major emajor) (= minor eminor))
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(decode minor (join-chunks (reverse acc-rev)) rest ks kf)
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(kf)))
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(else
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(decode-value rest
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(lambda (chunk rest)
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(if (chunk-ok? chunk)
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(loop (cons chunk acc-rev) rest)
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(kf)))
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kf)))))
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(define (decode-value bs ks kf)
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(bit-string-case bs
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([ (= #b00 :: bits 2) (minor :: bits 2) (field-count :: (wire-length)) (rest :: binary) ]
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(decode-values field-count '() rest
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(lambda (vs bs)
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(match* (minor vs)
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[(0 '()) (ks (discard) bs)]
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[(1 (list s)) (ks (capture s) bs)]
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[(2 (list s)) (ks (observe s) bs)]
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[(3 (list* key fs)) (ks (apply make-prefab-struct key fs) bs)]
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[(_ _) (kf)]))
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kf))
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([ (= #b01 :: bits 2) (minor :: bits 2) (count :: (wire-length)) (rest :: binary) ]
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(decode-values count '() rest
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(lambda (vs bs)
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(match minor
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[0 (ks vs bs)]
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[1 (ks (list->vector vs) bs)]
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[_ (kf)]))
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kf))
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([ (= #b10000000 :: bits 8) (rest :: binary) ]
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(ks 0 rest)) ;; because a signed 0-bit integer == -1 !
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([ (= #b1000 :: bits 4) (byte-count :: (wire-length))
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(v :: integer signed bytes byte-count)
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(rest :: binary) ]
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(ks v rest))
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([ (= #b10 :: bits 2) (minor :: bits 2) (byte-count :: (wire-length))
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([ (= #b00000000 :: bits 8) (rest :: binary) ] (ks #f rest))
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([ (= #b00000001 :: bits 8) (rest :: binary) ] (ks #t rest))
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([ (= #b00000010 :: bits 8) (v :: float bits 32) (rest :: binary) ] (ks (real->single-flonum v) rest))
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([ (= #b00000011 :: bits 8) (v :: float bits 64) (rest :: binary) ] (ks v rest))
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([ (= #b0001 :: bits 4) (x :: bits 4) (rest :: binary) ] (ks (if (> x 12) (- x 16) x) rest))
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([ (= #b001001 :: bits 6) (minor :: bits 2) (rest :: binary) ]
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(decode-stream 1 minor bytes? bytes-append* decode-binary rest ks kf))
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([ (= #b001010 :: bits 6) (minor :: bits 2) (rest :: binary) ]
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(decode-stream 2 minor (lambda (x) #t) values decode-record rest ks kf))
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([ (= #b001011 :: bits 6) (minor :: bits 2) (rest :: binary) ]
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(decode-stream 3 minor (lambda (x) #t) values decode-collection rest ks kf))
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([ (= #b01 :: bits 2) (minor :: bits 2) (byte-count :: (wire-length))
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(bits :: binary bytes byte-count)
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(rest :: binary) ]
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(define bs (bit-string->bytes bits))
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(match minor
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[2 (ks bs rest)]
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[(or 1 3)
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((with-handlers [(exn:fail:contract? (lambda (e) kf))]
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(define s (bytes->string/utf-8 bs))
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(lambda () (ks (if (= minor 3) (string->symbol s) s) rest))))]))
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([ (= #b11000000 :: bits 8) (rest :: binary) ] (ks #f rest))
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([ (= #b11000001 :: bits 8) (rest :: binary) ] (ks #t rest))
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([ (= #b11000010 :: bits 8) (v :: float bits 32) (rest :: binary) ] (ks v rest))
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([ (= #b11000011 :: bits 8) (v :: float bits 64) (rest :: binary) ] (ks v rest))
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(decode-binary minor (bit-string->bytes bits) rest ks kf))
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([ (= #b10 :: bits 2) (minor :: bits 2) (field-count :: (wire-length)) (rest :: binary) ]
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(decode-values field-count '() rest
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(lambda (fields rest) (decode-record minor fields rest ks kf))
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kf))
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([ (= #b11 :: bits 2) (minor :: bits 2) (count :: (wire-length)) (rest :: binary) ]
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(decode-values count '() rest
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(lambda (vs rest) (decode-collection minor vs rest ks kf))
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kf))
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(else (kf))))
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;;---------------------------------------------------------------------------
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(module+ test
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(require rackunit)
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(require (for-syntax racket syntax/srcloc))
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(check-equal? (bit-string->bytes (encode-varint 0)) (bytes 0))
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(check-equal? (bit-string->bytes (encode-varint 1)) (bytes 1))
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@ -240,109 +299,126 @@
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(struct speak (who what) #:prefab)
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(check-equal? (encode (capture (discard))) (bytes version 17 0))
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(check-equal? (encode (observe (speak (discard) (capture (discard)))))
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(bytes version 33 51 181 115 112 101 97 107 0 17 0))
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(check-equal? (encode '(1 2 3 4)) (bytes version 68 129 1 129 2 129 3 129 4))
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(check-equal? (encode '#(-2 -1 0 1)) (bytes version 84 129 254 129 255 128 129 1))
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(check-equal? (encode '("hello" there #"world" () #() #t #f))
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(bit-string->bytes
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(bit-string 1
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71
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#b10010101 (#"hello" :: binary)
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#b10110101 (#"there" :: binary)
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#b10100101 (#"world" :: binary)
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64
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80
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#b11000001
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#b11000000)))
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(check-equal? (encode -257) (bytes version 130 254 255))
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(check-equal? (encode -256) (bytes version 130 255 0))
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(check-equal? (encode -255) (bytes version 130 255 1))
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(check-equal? (encode -254) (bytes version 130 255 2))
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(check-equal? (encode -129) (bytes version 130 255 127))
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(check-equal? (encode -128) (bytes version 129 128))
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(check-equal? (encode -127) (bytes version 129 129))
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(check-equal? (encode -2) (bytes version 129 254))
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(check-equal? (encode -1) (bytes version 129 255))
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(check-equal? (encode 0) (bytes version 128))
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(check-equal? (encode 1) (bytes version 129 1))
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(check-equal? (encode 127) (bytes version 129 127))
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(check-equal? (encode 128) (bytes version 130 0 128))
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(check-equal? (encode 255) (bytes version 130 0 255))
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(check-equal? (encode 256) (bytes version 130 1 0))
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(check-equal? (encode 32767) (bytes version 130 127 255))
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(check-equal? (encode 32768) (bytes version 131 0 128 0))
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(check-equal? (encode 65535) (bytes version 131 0 255 255))
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(check-equal? (encode 65536) (bytes version 131 1 0 0))
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(check-equal? (encode 131072) (bytes version 131 2 0 0))
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(check-equal? (encode 1.0f0) (bytes version #b11000010 #b00111111 #b10000000 0 0))
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(check-equal? (encode 1.0) (bytes version #b11000011 #b00111111 #b11110000 0 0 0 0 0 0))
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(define (expected . pieces)
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(bit-string->bytes
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(apply bit-string-append
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(map (match-lambda
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[(? byte? b) (bytes b)]
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[(? bytes? bs) bs]
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[(? string? s) (string->bytes/utf-8 s)])
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pieces))))
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(define (d bs) (decode bs void))
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(check-equal? (d (bytes version 17 0)) (capture (discard)))
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(check-equal? (d (bytes (+ version 1) 17 0)) (void))
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(define-syntax (check-both-directions stx)
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(syntax-case stx ()
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((_ v (b ...))
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#'(let ((val v)) (check-both-directions v v (b ...))))
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((_ forward back (b ...))
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#`(let ((loc #,(source-location->string #'forward)))
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(check-equal? (d (encode forward)) back loc)
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(check-equal? (d (encode back)) back loc)
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(check-equal? (d (expected version b ...)) back loc)
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(check-equal? (encode forward) (expected version b ...) loc)
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))))
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(check-both-directions (capture (discard)) (#x91 #x80))
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(check-both-directions (observe (speak (discard) (capture (discard))))
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(#xA1 #xB3 #x75 "speak" #x80 #x91 #x80))
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(check-both-directions '(1 2 3 4) (#xC4 #x11 #x12 #x13 #x14))
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(check-both-directions (stream-of 'sequence (sequence->generator '(1 2 3 4)))
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'(1 2 3 4)
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(#x2C #x11 #x12 #x13 #x14 #x3C))
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(check-both-directions '(-2 -1 0 1) (#xC4 #x1E #x1F #x10 #x11))
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(check-both-directions "hello" (#x55 "hello"))
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(check-both-directions (stream-of 'string (sequence->generator '(#"he" #"llo")))
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"hello"
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(#x25 #x62 "he" #x63 "llo" #x35))
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(check-both-directions (stream-of 'string (sequence->generator '(#"he" #"ll" #"" #"" #"o")))
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"hello"
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(#x25 #x62 "he" #x62 "ll" #x60 #x60 #x61 "o" #x35))
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(check-both-directions (stream-of 'byte-string (sequence->generator '(#"he" #"ll" #"" #"" #"o")))
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#"hello"
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(#x26 #x62 "he" #x62 "ll" #x60 #x60 #x61 "o" #x36))
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(check-both-directions (stream-of 'symbol (sequence->generator '(#"he" #"ll" #"" #"" #"o")))
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'hello
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(#x27 #x62 "he" #x62 "ll" #x60 #x60 #x61 "o" #x37))
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(check-both-directions `("hello" there #"world" () ,(set) #t #f)
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(#xC7 #x55 "hello" #x75 "there" #x65 "world" #xC0 #xD0 #x01 #x00))
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(check-both-directions -257 (#x42 #xFE #xFF))
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(check-both-directions -256 (#x42 #xFF #x00))
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(check-both-directions -255 (#x42 #xFF #x01))
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(check-both-directions -254 (#x42 #xFF #x02))
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(check-both-directions -129 (#x42 #xFF #x7F))
|
||||
(check-both-directions -128 (#x41 #x80))
|
||||
(check-both-directions -127 (#x41 #x81))
|
||||
(check-both-directions -4 (#x41 #xFC))
|
||||
(check-both-directions -3 (#x1D))
|
||||
(check-both-directions -2 (#x1E))
|
||||
(check-both-directions -1 (#x1F))
|
||||
(check-both-directions 0 (#x10))
|
||||
(check-both-directions 1 (#x11))
|
||||
(check-both-directions 12 (#x1C))
|
||||
(check-both-directions 13 (#x41 #x0D))
|
||||
(check-both-directions 127 (#x41 #x7F))
|
||||
(check-both-directions 128 (#x42 #x00 #x80))
|
||||
(check-both-directions 255 (#x42 #x00 #xFF))
|
||||
(check-both-directions 256 (#x42 #x01 #x00))
|
||||
(check-both-directions 32767 (#x42 #x7F #xFF))
|
||||
(check-both-directions 32768 (#x43 #x00 #x80 #x00))
|
||||
(check-both-directions 65535 (#x43 #x00 #xFF #xFF))
|
||||
(check-both-directions 65536 (#x43 #x01 #x00 #x00))
|
||||
(check-both-directions 131072 (#x43 #x02 #x00 #x00))
|
||||
|
||||
(check-both-directions 1.0f0 (#b00000010 #b00111111 #b10000000 0 0))
|
||||
(check-both-directions 1.0 (#b00000011 #b00111111 #b11110000 0 0 0 0 0 0))
|
||||
(check-both-directions -1.202e300 (#x03 #xFE #x3C #xB7 #xB7 #x59 #xBF #x04 #x26))
|
||||
|
||||
(check-equal? (d (bytes (+ version 1) #x91 #x80)) (void))
|
||||
(check-equal? (d (expected version #x25 #x51 "a" #x35)) (void)) ;; Bad chunk type: must be bytes
|
||||
(check-equal? (d (expected version #x25 #x71 "a" #x35)) (void)) ;; Bad chunk type: must be bytes
|
||||
(check-equal? (d (expected version #x26 #x51 "a" #x36)) (void)) ;; Bad chunk type: must be bytes
|
||||
(check-equal? (d (expected version #x26 #x71 "a" #x36)) (void)) ;; Bad chunk type: must be bytes
|
||||
(check-equal? (d (expected version #x27 #x51 "a" #x37)) (void)) ;; Bad chunk type: must be bytes
|
||||
(check-equal? (d (expected version #x27 #x71 "a" #x37)) (void)) ;; Bad chunk type: must be bytes
|
||||
(check-equal? (d (expected version #x25 #x61 "a" #x35)) "a")
|
||||
(check-equal? (d (expected version #x26 #x61 "a" #x36)) #"a")
|
||||
(check-equal? (d (expected version #x27 #x61 "a" #x37)) 'a)
|
||||
|
||||
(check-equal? (d (bytes version 68 129 1 129 2 129 3 129 4)) '(1 2 3 4))
|
||||
(check-equal? (d (bytes version 84 129 254 129 255 128 129 1)) '#(-2 -1 0 1))
|
||||
(check-equal? (d (bit-string->bytes
|
||||
(bit-string 1
|
||||
71
|
||||
#b10010101 (#"hello" :: binary)
|
||||
#b10110101 (#"there" :: binary)
|
||||
#b10100101 (#"world" :: binary)
|
||||
64
|
||||
80
|
||||
#b11000001
|
||||
#b11000000)))
|
||||
'("hello" there #"world" () #() #t #f))
|
||||
(check-equal? (d (bytes version 33 51 181 115 112 101 97 107 0 17 0))
|
||||
(observe (speak (discard) (capture (discard)))))
|
||||
(check-equal? (d (bytes version 130 254 255)) -257)
|
||||
(check-equal? (d (bytes version 130 255 0)) -256)
|
||||
(check-equal? (d (bytes version 130 255 1)) -255)
|
||||
(check-equal? (d (bytes version 130 255 2)) -254)
|
||||
(check-equal? (d (bytes version 130 255 127)) -129)
|
||||
(check-equal? (d (bytes version 129 128)) -128)
|
||||
(check-equal? (d (bytes version 129 129)) -127)
|
||||
(check-equal? (d (bytes version 129 254)) -2)
|
||||
(check-equal? (d (bytes version 129 255)) -1)
|
||||
(check-equal? (d (bytes version 128)) 0)
|
||||
(check-equal? (d (bytes version 129 1)) 1)
|
||||
(check-equal? (d (bytes version 129 127)) 127)
|
||||
(check-equal? (d (bytes version 130 0 128)) 128)
|
||||
(check-equal? (d (bytes version 130 0 255)) 255)
|
||||
(check-equal? (d (bytes version 130 1 0)) 256)
|
||||
(check-equal? (d (bytes version 130 127 255)) 32767)
|
||||
(check-equal? (d (bytes version 131 0 128 0)) 32768)
|
||||
(check-equal? (d (bytes version 131 0 255 255)) 65535)
|
||||
(check-equal? (d (bytes version 131 1 0 0)) 65536)
|
||||
(check-equal? (d (bytes version 131 2 0 0)) 131072)
|
||||
(check-equal? (d (bytes version #b11000010 #b00111111 #b10000000 0 0)) 1.0)
|
||||
(check-equal? (d (bytes version #b11000011 #b00111111 #b11110000 0 0 0 0 0 0)) 1.0)
|
||||
|
||||
(struct date (year month day) #:prefab)
|
||||
(struct thing (id) #:prefab)
|
||||
(struct person thing (name date-of-birth) #:prefab)
|
||||
(struct titled person (title) #:prefab)
|
||||
|
||||
(check-equal? (encode (titled 101 "Blackwell" (date 1821 2 3) "Dr"))
|
||||
(bytes version
|
||||
#x35 ;; struct, generic, 4+1
|
||||
#x45 ;; list, 5
|
||||
#xb6 #x74 #x69 #x74 #x6c #x65 #x64 ;; symbol, "titled"
|
||||
#xb6 #x70 #x65 #x72 #x73 #x6f #x6e ;; symbol, "person"
|
||||
#x81 #x02 ;; integer, "2"
|
||||
#xb5 #x74 #x68 #x69 #x6e #x67 ;; symbol, "thing"
|
||||
#x81 #x01 ;; integer, "1"
|
||||
#x81 #x65 ;; integer, "101"
|
||||
#x99 #x42 #x6c #x61 #x63 #x6b #x77 #x65 #x6c #x6c ;; string, "Blackwell"
|
||||
#x34 ;; struct, generic, 3+1
|
||||
#xb4 #x64 #x61 #x74 #x65 ;; symbol, "date"
|
||||
#x82 #x07 #x1d ;; integer, "1821"
|
||||
#x81 #x02 ;; integer, "2"
|
||||
#x81 #x03 ;; integer, "3"
|
||||
#x92 #x44 #x72 ;; string, "Dr"
|
||||
))
|
||||
(check-both-directions
|
||||
(titled 101 "Blackwell" (date 1821 2 3) "Dr")
|
||||
(#xB5 ;; Record, generic, 4+1
|
||||
#xC5 ;; Sequence, 5
|
||||
#x76 #x74 #x69 #x74 #x6C #x65 #x64 ;; Symbol, "titled"
|
||||
#x76 #x70 #x65 #x72 #x73 #x6F #x6E ;; Symbol, "person"
|
||||
#x12 ;; SignedInteger, "2"
|
||||
#x75 #x74 #x68 #x69 #x6E #x67 ;; Symbol, "thing"
|
||||
#x11 ;; SignedInteger, "1"
|
||||
#x41 #x65 ;; SignedInteger, "101"
|
||||
#x59 #x42 #x6C #x61 #x63 #x6B #x77 #x65 #x6C #x6C ;; String, "Blackwell"
|
||||
#xB4 ;; Record, generic, 3+1
|
||||
#x74 #x64 #x61 #x74 #x65 ;; Symbol, "date"
|
||||
#x42 #x07 #x1D ;; SignedInteger, "1821"
|
||||
#x12 ;; SignedInteger, "2"
|
||||
#x13 ;; SignedInteger, "3"
|
||||
#x52 #x44 #x72 ;; String, "Dr"
|
||||
))
|
||||
|
||||
(check-both-directions (record 'discard '()) (discard) (#x80))
|
||||
(check-both-directions (record 'discard '(surprise)) '#s(discard surprise) (#x81 #x78 "surprise"))
|
||||
(check-both-directions (record 'capture '(x)) (capture 'x) (#x91 #x71 "x"))
|
||||
(check-both-directions (record 'observe '(x)) (observe 'x) (#xA1 #x71 "x"))
|
||||
(check-both-directions (record 'observe '(x y)) '#s(observe x y) (#xA2 #x71 "x" #x71 "y"))
|
||||
(check-both-directions (record 'other '(x y))
|
||||
'#s(other x y)
|
||||
(#xB3 #x75 "other" #x71 "x" #x71 "y"))
|
||||
(check-both-directions (record "aString" '(3 4)) (#xB3 #x57 "aString" #x13 #x14))
|
||||
(check-both-directions (record (discard) '(3 4)) (#xB3 #x80 #x13 #x14))
|
||||
)
|
||||
|
|
|
|||
Loading…
Reference in New Issue