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Allow VariantVisitor::visit_newtype to default to calling visit_tuple

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This commit is contained in:
Erick Tryzelaar 2015-07-30 20:36:15 -07:00
parent 2c58a9c11d
commit 94f3dd25d8
1 changed files with 5 additions and 2 deletions
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7
serde/src/de/mod.rs
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@ -596,11 +596,14 @@ pub trait VariantVisitor {
Err(Error::syntax_error()) Err(Error::syntax_error())
} }
/// `visit_newtype` is called when deserializing a variant with a single value. /// `visit_newtype` is called when deserializing a variant with a single value. By default this
/// uses the `visit_tuple` method to deserialize the value.
#[inline]
fn visit_newtype<T>(&mut self) -> Result<T, Self::Error> fn visit_newtype<T>(&mut self) -> Result<T, Self::Error>
where T: Deserialize, where T: Deserialize,
{ {
Err(Error::syntax_error()) let (value,) = try!(self.visit_tuple(1, impls::TupleVisitor1::new()));
Ok(value)
} }
/// `visit_tuple` is called when deserializing a tuple-like variant. /// `visit_tuple` is called when deserializing a tuple-like variant.