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macrotize tuple impls

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This commit is contained in:
Erick Tryzelaar 2014-05-19 17:53:24 -07:00
parent 2158f91589
commit a41c64f735
1 changed files with 27 additions and 34 deletions
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61
de.rs
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@ -272,45 +272,38 @@ impl<
////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////
impl< macro_rules! peel(($name:ident, $($other:ident,)*) => (deserialize_tuple!($($other,)*)))
E,
D: Deserializer<E>,
T0: Deserializable<E, D>
> Deserializable<E, D> for (T0,) {
#[inline]
fn deserialize_token(d: &mut D, token: Token) -> Result<(T0,), E> {
try!(d.expect_collection_start(token));
let x0 = try!(Deserializable::deserialize(d)); macro_rules! deserialize_tuple (
() => ();
( $($name:ident,)+ ) => (
impl<
E,
D: Deserializer<E>,
$($name:Deserializable<E, D>),*> Deserializable<E, D> for ($($name,)*) {
#[inline]
#[allow(uppercase_variables)]
fn deserialize_token(d: &mut D, token: Token) -> Result<($($name,)*), E> {
try!(d.expect_collection_start(token));
let token = try!(d.expect_token()); let result = ($(
try!(d.expect_collection_end(token)); {
let $name = try!(Deserializable::deserialize(d));
$name
}
,)*);
Ok((x0,)) let token = try!(d.expect_token());
} try!(d.expect_collection_end(token));
}
////////////////////////////////////////////////////////////////////////////// Ok(result)
}
}
peel!($($name,)*)
)
)
impl< deserialize_tuple! { T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, }
E,
D: Deserializer<E>,
T0: Deserializable<E, D>,
T1: Deserializable<E, D>
> Deserializable<E, D> for (T0, T1) {
#[inline]
fn deserialize_token(d: &mut D, token: Token) -> Result<(T0, T1), E> {
try!(d.expect_collection_start(token));
let x0 = try!(Deserializable::deserialize(d));
let x1 = try!(Deserializable::deserialize(d));
let token = try!(d.expect_token());
try!(d.expect_collection_end(token));
Ok((x0, x1))
}
}
////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////