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#lang restructure/racket
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(require "stream.rkt" "utils.rkt")
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(provide (all-defined-out))
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#|
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approximates
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https://github.com/mbutterick/restructure/blob/master/src/Reserved.coffee
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|#
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(define-subclass Streamcoder (Reserved type [count 1])
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(define/augment (decode stream parent)
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(send stream pos (+ (· stream pos) (size #f parent)))
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(void))
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(define/override (size [val #f] [parent #f])
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(* (send type size) (resolve-length count #f parent)))
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(define/augment (encode stream val [parent #f])
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(send stream fill 0 (size val parent))))
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