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[bencode/de] Implement options

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This commit is contained in:
Fabian 2024-08-06 22:44:25 +02:00
parent f90876a324
commit 876fbe15dc
1 changed files with 14 additions and 2 deletions
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16
src/bencode/de.rs
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@ -226,11 +226,11 @@ impl <'de, 'a> de::Deserializer<'de> for &'a mut Deserializer<'de> {
visitor.visit_byte_buf(Vec::from(self.parse_byte_string()?))
}
fn deserialize_option<V>(self, _: V) -> Result<V::Value>
fn deserialize_option<V>(self, visitor: V) -> Result<V::Value>
where
V: Visitor<'de>
{
Err(Error::WontImplement)
visitor.visit_some(self)
}
fn deserialize_unit<V>(self, _: V) -> Result<V::Value>
@ -503,5 +503,17 @@ mod test {
("foo".to_string(), [0x1, 0x2, 0x3]),
("bar".to_string(), [0x19, 0x31, 0x17]),
]));
#[derive(Deserialize, Debug)]
struct C {
l: Vec<i64>,
o: Option<i64>,
}
let de: C = from_str("d1:lli23ei17eee").unwrap();
assert_eq!(de.l, vec![23, 17]);
assert_eq!(de.o, None);
let de: C = from_str("d1:lli23ei17ee1:oi42ee").unwrap();
assert_eq!(de.l, vec![23, 17]);
assert_eq!(de.o, Some(42));
}
}