cardano_serialization_lib/serialization/plutus/
ex_units.rs

1use crate::*;
2
3impl cbor_event::se::Serialize for ExUnits {
4    fn serialize<'se, W: Write>(
5        &self,
6        serializer: &'se mut Serializer<W>,
7    ) -> cbor_event::Result<&'se mut Serializer<W>> {
8        serializer.write_array(cbor_event::Len::Len(2))?;
9        self.mem.serialize(serializer)?;
10        self.steps.serialize(serializer)?;
11        Ok(serializer)
12    }
13}
14
15impl Deserialize for ExUnits {
16    fn deserialize<R: BufRead + Seek>(raw: &mut Deserializer<R>) -> Result<Self, DeserializeError> {
17        (|| -> Result<_, DeserializeError> {
18            let len = raw.array()?;
19            let mut read_len = CBORReadLen::new(len);
20            read_len.read_elems(2)?;
21            let mem = (|| -> Result<_, DeserializeError> { Ok(BigNum::deserialize(raw)?) })()
22                .map_err(|e| e.annotate("mem"))?;
23            let steps = (|| -> Result<_, DeserializeError> { Ok(BigNum::deserialize(raw)?) })()
24                .map_err(|e| e.annotate("steps"))?;
25            match len {
26                cbor_event::Len::Len(_) => (),
27                cbor_event::Len::Indefinite => match raw.special()? {
28                    CBORSpecial::Break => (),
29                    _ => return Err(DeserializeFailure::EndingBreakMissing.into()),
30                },
31            }
32            Ok(ExUnits { mem, steps })
33        })()
34            .map_err(|e| e.annotate("ExUnits"))
35    }
36}