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naive: updates l2 parser to use a bitwise cursor

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This commit is contained in:
Joe Bryan 2021-09-01 23:28:30 -04:00
parent 87acc0bf8d
commit 17b97de8f8
1 changed files with 59 additions and 58 deletions
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113
pkg/arvo/lib/naive.hoon
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@ -203,37 +203,39 @@
=| =roll
~> %slog.[2 %parsing]
~< %slog.[2 %parsed]
=| pos=@ud
=/ las (met 0 batch)
|- ^+ roll
?~ batch
?: (gte pos las)
(flop roll)
=/ parse-result (parse-raw-tx batch)
=/ parse-result (parse-raw-tx pos batch)
:: Parsing failed, abort batch
::
?~ parse-result
(debug %parse-failed ~)
=^ =raw-tx batch u.parse-result
=^ =raw-tx pos u.parse-result
$(roll [raw-tx roll])
::
++ parse-raw-tx
|= batch=@
^- (unit [raw-tx rest=@])
=/ batch [len=0 rest=batch]
|= [pos=@ud batch=@]
^- (unit [raw-tx pos=@ud])
|^
=^ sig batch (take 3 65)
=. len.batch 0
=/ orig-batch rest.batch
=/ res=(unit [=tx batch=_batch]) parse-tx
?~ res
~
:- ~ :_ rest.batch.u.res
=/ len-bytes
?> =(0 (mod len.batch.u.res 8))
(div len.batch.u.res 8)
[sig [len-bytes (end [0 len.batch.u.res] orig-batch)] tx.u.res]
=^ sig pos (take 3 65)
=/ res=(unit [=tx pos=@ud]) parse-tx
?~ res ~
=/ [len=@ rem=@]
:: XX (dvr (sub pos.u.res pos) 8)
=/ dif (sub pos.u.res pos)
[(div dif 8) (mod dif 8)]
?. =(0 rem)
:: XX parse fail, produce ~ ?
!!
:- ~ :_ pos.u.res
[sig [len (cut 0 [pos pos.u.res] batch)] tx.u.res]
::
++ parse-tx
^- (unit [tx _batch])
=^ from-proxy=@ batch (take 0 3)
^- (unit [tx pos=@ud])
=^ from-proxy=@ pos (take 0 3)
?. ?=(?(%0 %1 %2 %3 %4) from-proxy) (debug %bad-proxy ~)
=/ =proxy
?- from-proxy
@ -243,66 +245,65 @@
%3 %vote
%4 %transfer
==
=^ pad batch (take 0 5)
=^ from-ship=ship batch (take 3 4)
=^ pad pos (take 0 5)
=^ from-ship=ship pos (take 3 4)
=- ?~ res
~
`[[[from-ship proxy] skim-tx.u.res] batch.u.res]
^- res=(unit [=skim-tx =_batch])
=^ op batch (take 0 7)
`[[[from-ship proxy] skim-tx.u.res] pos.u.res]
^- res=(unit [=skim-tx pos=@ud])
=^ op pos (take 0 7)
?+ op ~>(%slog.[0 %strange-opcode] ~)
%0
=^ reset=@ batch (take 0)
=^ =address batch (take 3 20)
`[[%transfer-point address =(0 reset)] batch]
=^ reset=@ pos (take 0)
=^ =address pos (take 3 20)
`[[%transfer-point address =(0 reset)] pos]
::
%1
=^ pad=@ batch (take 0)
=^ =ship batch (take 3 4)
=^ =address batch (take 3 20)
`[[%spawn ship address] batch]
=^ pad=@ pos (take 0)
=^ =ship pos (take 3 4)
=^ =address pos (take 3 20)
`[[%spawn ship address] pos]
::
%2
=^ breach=@ batch (take 0)
=^ encrypt=@ batch (take 3 32)
=^ auth=@ batch (take 3 32)
=^ crypto-suite=@ batch (take 3 4)
`[[%configure-keys encrypt auth crypto-suite =(0 breach)] batch]
=^ breach=@ pos (take 0)
=^ encrypt=@ pos (take 3 32)
=^ auth=@ pos (take 3 32)
=^ crypto-suite=@ pos (take 3 4)
`[[%configure-keys encrypt auth crypto-suite =(0 breach)] pos]
::
%3 =^(res batch take-ship `[[%escape res] batch])
%4 =^(res batch take-ship `[[%cancel-escape res] batch])
%5 =^(res batch take-ship `[[%adopt res] batch])
%6 =^(res batch take-ship `[[%reject res] batch])
%7 =^(res batch take-ship `[[%detach res] batch])
%8 =^(res batch take-address `[[%set-management-proxy res] batch])
%9 =^(res batch take-address `[[%set-spawn-proxy res] batch])
%10 =^(res batch take-address `[[%set-transfer-proxy res] batch])
%3 =^(res pos take-ship `[[%escape res] pos])
%4 =^(res pos take-ship `[[%cancel-escape res] pos])
%5 =^(res pos take-ship `[[%adopt res] pos])
%6 =^(res pos take-ship `[[%reject res] pos])
%7 =^(res pos take-ship `[[%detach res] pos])
%8 =^(res pos take-address `[[%set-management-proxy res] pos])
%9 =^(res pos take-address `[[%set-spawn-proxy res] pos])
%10 =^(res pos take-address `[[%set-transfer-proxy res] pos])
==
::
:: Take a bite
::
++ take
|= =bite
^- [@ _batch]
:- (end bite +.batch)
:- %+ add -.batch
^- [@ @ud]
=/ =step
?@ bite (bex bite)
(mul step.bite (bex bloq.bite))
(rsh bite +.batch)
[(cut 0 [pos step] batch) (add pos step)]
:: Encode ship and address
::
++ take-address
^- [address _batch]
=^ pad=@ batch (take 0)
=^ =address batch (take 3 20)
[address batch]
^- [address @ud]
=^ pad=@ pos (take 0)
=^ =address pos (take 3 20)
[address pos]
:: Encode escape-related txs
::
++ take-ship
^- [ship _batch]
=^ pad=@ batch (take 0)
=^ other=ship batch (take 3 4)
[other batch]
^- [ship @ud]
=^ pad=@ pos (take 0)
=^ other=ship pos (take 3 4)
[other pos]
--
::
++ proxy-from-point