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Detach the jet codec #335

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Merged
apoelstra merged 1 commit into from
Apr 17, 2026
+8 −2
Merged

Detach the jet codec #335

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10 changes: 8 additions & 2 deletions Haskell-Generate/GenRustJets.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -212,7 +212,7 @@ rustJetCJetPtr mod = vsep $

rustJetEncode :: Module -> Doc a
rustJetEncode mod =
"fn encode<W: Write>(&self, w: &mut BitWriter<W>) -> std::io::Result<usize>" <+>
"fn encode(&self, w: &mut BitWriter<&mut dyn Write>) -> std::io::Result<usize>" <+>
nestBraces ("let (n, len) = match self" <+>
nestBraces (vsep (foldMapWithPath item (moduleCodes mod))) <> semi <-> line <> "w.write_bits_be(n, len)")
where
Expand All @@ -223,7 +223,7 @@ rustJetEncode mod =

rustJetDecode :: Module -> Doc a
rustJetDecode mod =
"fn decode<I: Iterator<Item = u8>>(bits: &mut BitIter<I>) -> Result<Self, decode::Error>" <+>
"fn decode<I: Iterator<Item = u8>>(bits: &mut BitIter<I>) -> Result<Self, decode::Error> where Self: Sized" <+>
nestBraces ("decode_bits!(bits," <+> braces (docTree (moduleCodes mod)) <> ")")
where
docTree Dead = mempty
Expand Down Expand Up @@ -251,6 +251,11 @@ rustJetCost mod = vsep $
where
modname = rustModuleName mod

rustJetParse :: Doc a
rustJetParse =
"fn parse(s: &str) -> Result<Self, crate::Error> where Self: Sized" <+>
nestBraces "str::FromStr::from_str(s)"

rustJetImpl :: Module -> Doc a
rustJetImpl mod = vsep $
[ nest 4 (vsep $ punctuate line
Expand All @@ -261,6 +266,7 @@ rustJetImpl mod = vsep $
, rustJetEncode mod
, rustJetDecode mod
, rustJetCost mod
, rustJetParse
])
, "}"
]
Expand Down
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