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|
(.module:
[library
[lux (#- and or nat int rev list type)
[abstract
[monoid (#+ Monoid)]
[monad (#+ Monad do)]
[equivalence (#+ Equivalence)]]
[control
[pipe (#+ case>)]
["." function]
["." try (#+ Try)]
["<>" parser ("#\." monad)
["/" binary (#+ Offset Size Parser)]]]
[data
["." product]
["." binary (#+ Binary)]
[text
["%" format (#+ format)]
[encoding
["." utf8]]]
[collection
["." list]
["." row (#+ Row) ("#\." functor)]
["." set (#+ Set)]]]
[math
[number
["." i64]
["n" nat]
["." frac]]]]])
(def: mask
(-> Size (I64 Any))
(|>> (n.* i64.bits_per_byte) i64.mask))
(type: .public Mutation
(-> [Offset Binary] [Offset Binary]))
(type: .public Specification
[Size Mutation])
(def: .public no_op
Specification
[0 function.identity])
(def: .public (instance [size mutation])
(-> Specification Binary)
(|> size binary.empty [0] mutation product.right))
(implementation: .public monoid
(Monoid Specification)
(def: identity
..no_op)
(def: (composite [sizeL mutL] [sizeR mutR])
[(n.+ sizeL sizeR)
(|>> mutL mutR)]))
(type: .public (Writer a)
(-> a Specification))
(def: .public (result writer value)
(All (_ a) (-> (Writer a) a Binary))
(..instance (writer value)))
(template [<name> <size> <write>]
[(def: .public <name>
(Writer (I64 Any))
(function (_ value)
[<size>
(function (_ [offset binary])
[(n.+ <size> offset)
(|> binary
(<write> offset value)
try.trusted)])]))]
[bits/8 /.size/8 binary.write/8!]
[bits/16 /.size/16 binary.write/16!]
[bits/32 /.size/32 binary.write/32!]
[bits/64 /.size/64 binary.write/64!]
)
(def: .public (or left right)
(All (_ l r) (-> (Writer l) (Writer r) (Writer (Or l r))))
(function (_ altV)
(case altV
(^template [<number> <tag> <writer>]
[(<tag> caseV)
(let [[caseS caseT] (<writer> caseV)]
[(.++ caseS)
(function (_ [offset binary])
(|> binary
(binary.write/8! offset <number>)
try.trusted
[(.++ offset)]
caseT))])])
([0 #.Left left]
[1 #.Right right])
)))
(def: .public (and pre post)
(All (_ a b) (-> (Writer a) (Writer b) (Writer [a b])))
(function (_ [preV postV])
(\ ..monoid composite (pre preV) (post postV))))
(def: .public (rec body)
(All (_ a) (-> (-> (Writer a) (Writer a)) (Writer a)))
(function (recur value)
(body recur value)))
(def: .public any
(Writer Any)
(function.constant ..no_op))
(def: .public bit
(Writer Bit)
(|>> (case> #0 0 #1 1) ..bits/8))
(template [<name> <type>]
[(def: .public <name> (Writer <type>) ..bits/64)]
[nat Nat]
[int Int]
[rev Rev]
)
(def: .public frac
(Writer Frac)
(|>> frac.bits ..bits/64))
(def: .public (segment size)
(-> Nat (Writer Binary))
(function (_ value)
[size
(function (_ [offset binary])
[(n.+ size offset)
(try.trusted
(binary.copy (n.min size (binary.size value))
0
value
offset
binary))])]))
(template [<name> <bits> <size> <write>]
[(def: .public <name>
(Writer Binary)
(let [mask (..mask <size>)]
(function (_ value)
(let [size (|> value binary.size (i64.and mask))
size' (n.+ <size> size)]
[size'
(function (_ [offset binary])
[(n.+ size' offset)
(try.trusted
(do try.monad
[_ (<write> offset size binary)]
(binary.copy size 0 value (n.+ <size> offset) binary)))])]))))]
[binary/8 ..bits/8 /.size/8 binary.write/8!]
[binary/16 ..bits/16 /.size/16 binary.write/16!]
[binary/32 ..bits/32 /.size/32 binary.write/32!]
[binary/64 ..bits/64 /.size/64 binary.write/64!]
)
(template [<name> <binary>]
[(def: .public <name>
(Writer Text)
(|>> (\ utf8.codec encoded) <binary>))]
[utf8/8 ..binary/8]
[utf8/16 ..binary/16]
[utf8/32 ..binary/32]
[utf8/64 ..binary/64]
)
(def: .public text ..utf8/64)
(template [<name> <size> <write>]
[(def: .public (<name> valueW)
(All (_ v) (-> (Writer v) (Writer (Row v))))
(function (_ value)
(let [original_count (row.size value)
capped_count (i64.and (..mask <size>)
original_count)
value (if (n.= original_count capped_count)
value
(|> value row.list (list.first capped_count) row.of_list))
(^open "specification\.") ..monoid
[size mutation] (|> value
(row\each valueW)
(\ row.mix mix
(function (_ post pre)
(specification\composite pre post))
specification\identity))]
[(n.+ <size> size)
(function (_ [offset binary])
(try.trusted
(do try.monad
[_ (<write> offset capped_count binary)]
(in (mutation [(n.+ <size> offset) binary])))))])))]
[row/8 /.size/8 binary.write/8!]
[row/16 /.size/16 binary.write/16!]
[row/32 /.size/32 binary.write/32!]
[row/64 /.size/64 binary.write/64!]
)
(def: .public maybe
(All (_ a) (-> (Writer a) (Writer (Maybe a))))
(..or ..any))
(def: .public (list value)
(All (_ a) (-> (Writer a) (Writer (List a))))
(..rec
(|>> (..and value)
(..or ..any))))
(def: .public (set value)
(All (_ a) (-> (Writer a) (Writer (Set a))))
(|>> set.list (..list value)))
(def: .public name
(Writer Name)
(..and ..text ..text))
(def: .public type
(Writer Type)
(..rec
(function (_ recur)
(let [pair (..and recur recur)
indexed ..nat
quantified (..and (..list recur) recur)]
(function (_ altV)
(case altV
(^template [<number> <tag> <writer>]
[(<tag> caseV)
(let [[caseS caseT] (<writer> caseV)]
[(.++ caseS)
(function (_ [offset binary])
(|> binary
(binary.write/8! offset <number>)
try.trusted
[(.++ offset)]
caseT))])])
([0 #.Primitive (..and ..text (..list recur))]
[1 #.Sum pair]
[2 #.Product pair]
[3 #.Function pair]
[4 #.Parameter indexed]
[5 #.Var indexed]
[6 #.Ex indexed]
[7 #.UnivQ quantified]
[8 #.ExQ quantified]
[9 #.Apply pair]
[10 #.Named (..and ..name recur)])
))))))
(def: .public location
(Writer Location)
($_ ..and ..text ..nat ..nat))
(def: .public code
(Writer Code)
(..rec
(function (_ recur)
(let [sequence (..list recur)]
(..and ..location
(function (_ altV)
(case altV
(^template [<number> <tag> <writer>]
[(<tag> caseV)
(let [[caseS caseT] (<writer> caseV)]
[(.++ caseS)
(function (_ [offset binary])
(|> binary
(binary.write/8! offset <number>)
try.trusted
[(.++ offset)]
caseT))])])
([0 #.Bit ..bit]
[1 #.Nat ..nat]
[2 #.Int ..int]
[3 #.Rev ..rev]
[4 #.Frac ..frac]
[5 #.Text ..text]
[6 #.Identifier ..name]
[7 #.Tag ..name]
[8 #.Form sequence]
[9 #.Tuple sequence]
[10 #.Record (..list (..and recur recur))])
)))))))
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