serde/testing/tests/test_gen.rs
2016-07-17 21:10:05 -07:00

136 lines
3.4 KiB
Rust

// These just test that serde_codegen is able to produce code that compiles
// successfully when there are a variety of generics and non-(de)serializable
// types involved.
extern crate serde;
use self::serde::ser::{Serialize, Serializer};
use self::serde::de::{Deserialize, Deserializer};
//////////////////////////////////////////////////////////////////////////
#[derive(Serialize, Deserialize)]
struct With<T> {
t: T,
#[serde(serialize_with="ser_x", deserialize_with="de_x")]
x: X,
}
#[derive(Serialize, Deserialize)]
struct WithRef<'a, T: 'a> {
#[serde(skip_deserializing)]
t: Option<&'a T>,
#[serde(serialize_with="ser_x", deserialize_with="de_x")]
x: X,
}
#[derive(Serialize, Deserialize)]
struct Bounds<T: Serialize + Deserialize> {
t: T,
option: Option<T>,
boxed: Box<T>,
option_boxed: Option<Box<T>>,
}
#[derive(Serialize, Deserialize)]
struct NoBounds<T> {
t: T,
option: Option<T>,
boxed: Box<T>,
option_boxed: Option<Box<T>>,
}
#[derive(Serialize, Deserialize)]
enum EnumWith<T> {
Unit,
Newtype(
#[serde(serialize_with="ser_x", deserialize_with="de_x")]
X),
Tuple(
T,
#[serde(serialize_with="ser_x", deserialize_with="de_x")]
X),
Struct {
t: T,
#[serde(serialize_with="ser_x", deserialize_with="de_x")]
x: X },
}
#[derive(Serialize)]
#[allow(dead_code)]
struct MultipleRef<'a, 'b, 'c, T> where T: 'c, 'c: 'b, 'b: 'a {
t: T,
rrrt: &'a &'b &'c T,
}
#[derive(Serialize, Deserialize)]
struct Newtype(
#[serde(serialize_with="ser_x", deserialize_with="de_x")]
X
);
#[derive(Serialize, Deserialize)]
struct Tuple<T>(
T,
#[serde(serialize_with="ser_x", deserialize_with="de_x")]
X,
);
#[derive(Serialize, Deserialize)]
enum TreeNode<D> {
Split {
left: Box<TreeNode<D>>,
right: Box<TreeNode<D>>,
},
Leaf {
data: D,
},
}
#[derive(Serialize, Deserialize)]
struct ListNode<D> {
data: D,
next: Box<ListNode<D>>,
}
#[derive(Serialize, Deserialize)]
#[serde(bound="D: SerializeWith + DeserializeWith")]
struct WithTraits1<D, E> {
#[serde(serialize_with="SerializeWith::serialize_with",
deserialize_with="DeserializeWith::deserialize_with")]
d: D,
#[serde(serialize_with="SerializeWith::serialize_with",
deserialize_with="DeserializeWith::deserialize_with",
bound="E: SerializeWith + DeserializeWith")]
e: E,
}
#[derive(Serialize, Deserialize)]
#[serde(bound(serialize="D: SerializeWith",
deserialize="D: DeserializeWith"))]
struct WithTraits2<D, E> {
#[serde(serialize_with="SerializeWith::serialize_with",
deserialize_with="DeserializeWith::deserialize_with")]
d: D,
#[serde(serialize_with="SerializeWith::serialize_with",
bound(serialize="E: SerializeWith"))]
#[serde(deserialize_with="DeserializeWith::deserialize_with",
bound(deserialize="E: DeserializeWith"))]
e: E,
}
//////////////////////////////////////////////////////////////////////////
trait SerializeWith {
fn serialize_with<S: Serializer>(_: &Self, _: &mut S) -> Result<(), S::Error>;
}
trait DeserializeWith: Sized {
fn deserialize_with<D: Deserializer>(_: &mut D) -> Result<Self, D::Error>;
}
// Implements neither Serialize nor Deserialize
struct X;
fn ser_x<S: Serializer>(_: &X, _: &mut S) -> Result<(), S::Error> { panic!() }
fn de_x<D: Deserializer>(_: &mut D) -> Result<X, D::Error> { panic!() }