348 lines
8.8 KiB
Rust
348 lines
8.8 KiB
Rust
// These just test that serde_codegen is able to produce code that compiles
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// successfully when there are a variety of generics and non-(de)serializable
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// types involved.
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#![cfg_attr(feature = "unstable", feature(non_ascii_idents))]
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// Clippy false positive
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// https://github.com/Manishearth/rust-clippy/issues/292
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#![cfg_attr(feature = "cargo-clippy", allow(needless_lifetimes))]
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#[macro_use]
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extern crate serde_derive;
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extern crate serde;
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use self::serde::ser::{Serialize, Serializer};
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use self::serde::de::{DeserializeOwned, Deserializer};
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use std::borrow::Cow;
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use std::marker::PhantomData;
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use std::result::Result as StdResult;
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// Try to trip up the generated code if it fails to use fully qualified paths.
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#[allow(dead_code)]
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struct Result;
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#[allow(dead_code)]
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struct Ok;
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#[allow(dead_code)]
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struct Err;
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//////////////////////////////////////////////////////////////////////////
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#[test]
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fn test_gen() {
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#[derive(Serialize, Deserialize)]
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struct With<T> {
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t: T,
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#[serde(serialize_with="ser_x", deserialize_with="de_x")]
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x: X,
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}
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assert::<With<i32>>();
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#[derive(Serialize, Deserialize)]
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struct WithTogether<T> {
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t: T,
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#[serde(with="both_x")]
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x: X,
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}
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assert::<WithTogether<i32>>();
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#[derive(Serialize, Deserialize)]
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struct WithRef<'a, T: 'a> {
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#[serde(skip_deserializing)]
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t: Option<&'a T>,
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#[serde(serialize_with="ser_x", deserialize_with="de_x")]
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x: X,
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}
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assert::<WithRef<i32>>();
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#[derive(Serialize, Deserialize)]
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struct PhantomX {
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x: PhantomData<X>,
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}
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assert::<PhantomX>();
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#[derive(Serialize, Deserialize)]
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struct PhantomT<T> {
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t: PhantomData<T>,
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}
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assert::<PhantomT<X>>();
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#[derive(Serialize, Deserialize)]
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struct NoBounds<T> {
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t: T,
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option: Option<T>,
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boxed: Box<T>,
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option_boxed: Option<Box<T>>,
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}
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assert::<NoBounds<i32>>();
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#[derive(Serialize, Deserialize)]
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enum EnumWith<T> {
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Unit,
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Newtype(
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#[serde(serialize_with="ser_x", deserialize_with="de_x")]
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X),
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Tuple(
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T,
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#[serde(serialize_with="ser_x", deserialize_with="de_x")]
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X),
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Struct {
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t: T,
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#[serde(serialize_with="ser_x", deserialize_with="de_x")]
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x: X },
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}
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assert::<EnumWith<i32>>();
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#[derive(Serialize)]
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struct MultipleRef<'a, 'b, 'c, T> where T: 'c, 'c: 'b, 'b: 'a {
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t: T,
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rrrt: &'a &'b &'c T,
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}
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assert_ser::<MultipleRef<i32>>();
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#[derive(Serialize, Deserialize)]
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struct Newtype(
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#[serde(serialize_with="ser_x", deserialize_with="de_x")]
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X
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);
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assert::<Newtype>();
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#[derive(Serialize, Deserialize)]
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struct Tuple<T>(
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T,
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#[serde(serialize_with="ser_x", deserialize_with="de_x")]
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X,
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);
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assert::<Tuple<i32>>();
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#[derive(Serialize, Deserialize)]
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enum TreeNode<D> {
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Split {
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left: Box<TreeNode<D>>,
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right: Box<TreeNode<D>>,
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},
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Leaf {
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data: D,
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},
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}
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assert::<TreeNode<i32>>();
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#[derive(Serialize, Deserialize)]
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struct ListNode<D> {
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data: D,
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next: Box<ListNode<D>>,
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}
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assert::<ListNode<i32>>();
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#[derive(Serialize, Deserialize)]
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struct RecursiveA {
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b: Box<RecursiveB>,
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}
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assert::<RecursiveA>();
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#[derive(Serialize, Deserialize)]
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enum RecursiveB {
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A(RecursiveA),
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}
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assert::<RecursiveB>();
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#[derive(Serialize, Deserialize)]
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struct RecursiveGenericA<T> {
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t: T,
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b: Box<RecursiveGenericB<T>>,
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}
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assert::<RecursiveGenericA<i32>>();
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#[derive(Serialize, Deserialize)]
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enum RecursiveGenericB<T> {
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T(T),
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A(RecursiveGenericA<T>),
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}
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assert::<RecursiveGenericB<i32>>();
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#[derive(Serialize)]
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struct OptionStatic<'a> {
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a: Option<&'a str>,
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b: Option<&'static str>,
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}
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assert_ser::<OptionStatic>();
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#[derive(Serialize, Deserialize)]
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#[serde(bound="D: SerializeWith + DeserializeWith")]
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struct WithTraits1<D, E> {
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#[serde(serialize_with="SerializeWith::serialize_with",
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deserialize_with="DeserializeWith::deserialize_with")]
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d: D,
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#[serde(serialize_with="SerializeWith::serialize_with",
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deserialize_with="DeserializeWith::deserialize_with",
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bound="E: SerializeWith + DeserializeWith")]
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e: E,
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}
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assert::<WithTraits1<X, X>>();
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#[derive(Serialize, Deserialize)]
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#[serde(bound(serialize="D: SerializeWith",
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deserialize="D: DeserializeWith"))]
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struct WithTraits2<D, E> {
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#[serde(serialize_with="SerializeWith::serialize_with",
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deserialize_with="DeserializeWith::deserialize_with")]
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d: D,
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#[serde(serialize_with="SerializeWith::serialize_with",
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bound(serialize="E: SerializeWith"))]
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#[serde(deserialize_with="DeserializeWith::deserialize_with",
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bound(deserialize="E: DeserializeWith"))]
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e: E,
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}
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assert::<WithTraits2<X, X>>();
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#[derive(Serialize, Deserialize)]
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struct CowStr<'a>(Cow<'a, str>);
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assert::<CowStr>();
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#[derive(Serialize, Deserialize)]
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#[serde(bound(deserialize = "T::Owned: DeserializeOwned"))]
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struct CowT<'a, T: ?Sized + 'a + ToOwned>(Cow<'a, T>);
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assert::<CowT<str>>();
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#[derive(Serialize, Deserialize)]
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struct EmptyStruct {}
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assert::<EmptyStruct>();
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#[derive(Serialize, Deserialize)]
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enum EmptyEnumVariant {
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EmptyStruct {},
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}
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assert::<EmptyEnumVariant>();
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#[cfg(feature = "unstable")]
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#[derive(Serialize, Deserialize)]
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struct NonAsciiIdents {
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σ: f64
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}
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#[derive(Serialize, Deserialize)]
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struct EmptyBraced {}
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#[derive(Serialize, Deserialize)]
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#[serde(deny_unknown_fields)]
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struct EmptyBracedDenyUnknown {}
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#[derive(Serialize, Deserialize)]
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struct BracedSkipAll {
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#[serde(skip_deserializing)]
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f: u8,
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}
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#[derive(Serialize, Deserialize)]
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#[serde(deny_unknown_fields)]
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struct BracedSkipAllDenyUnknown {
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#[serde(skip_deserializing)]
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f: u8,
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}
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#[cfg(feature = "unstable")]
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#[derive(Serialize, Deserialize)]
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struct EmptyTuple();
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#[cfg(feature = "unstable")]
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#[derive(Serialize, Deserialize)]
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#[serde(deny_unknown_fields)]
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struct EmptyTupleDenyUnknown();
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#[derive(Serialize, Deserialize)]
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struct TupleSkipAll(#[serde(skip_deserializing)] u8);
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#[derive(Serialize, Deserialize)]
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#[serde(deny_unknown_fields)]
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struct TupleSkipAllDenyUnknown(#[serde(skip_deserializing)] u8);
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#[derive(Serialize, Deserialize)]
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enum EmptyEnum {}
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#[derive(Serialize, Deserialize)]
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#[serde(deny_unknown_fields)]
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enum EmptyEnumDenyUnknown {}
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#[derive(Serialize, Deserialize)]
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enum EnumSkipAll {
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#[serde(skip_deserializing)]
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#[allow(dead_code)]
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Variant,
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}
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#[cfg(feature = "unstable")]
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#[derive(Serialize, Deserialize)]
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enum EmptyVariants {
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Braced {},
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Tuple(),
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BracedSkip {
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#[serde(skip_deserializing)]
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f: u8,
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},
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TupleSkip(#[serde(skip_deserializing)] u8),
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}
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#[cfg(feature = "unstable")]
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#[derive(Serialize, Deserialize)]
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#[serde(deny_unknown_fields)]
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enum EmptyVariantsDenyUnknown {
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Braced {},
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Tuple(),
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BracedSkip {
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#[serde(skip_deserializing)]
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f: u8,
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},
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TupleSkip(#[serde(skip_deserializing)] u8),
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}
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#[derive(Serialize, Deserialize)]
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#[serde(deny_unknown_fields)]
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struct UnitDenyUnknown;
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#[derive(Serialize, Deserialize)]
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struct EmptyArray {
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empty: [X; 0],
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}
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}
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//////////////////////////////////////////////////////////////////////////
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fn assert<T: Serialize + DeserializeOwned>() {}
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fn assert_ser<T: Serialize>() {}
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trait SerializeWith {
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fn serialize_with<S: Serializer>(_: &Self, _: S) -> StdResult<S::Ok, S::Error>;
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}
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trait DeserializeWith: Sized {
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fn deserialize_with<'de, D: Deserializer<'de>>(_: D) -> StdResult<Self, D::Error>;
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}
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// Implements neither Serialize nor Deserialize
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pub struct X;
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pub fn ser_x<S: Serializer>(_: &X, _: S) -> StdResult<S::Ok, S::Error> {
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unimplemented!()
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}
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pub fn de_x<'de, D: Deserializer<'de>>(_: D) -> StdResult<X, D::Error> {
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unimplemented!()
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}
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mod both_x {
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pub use super::{ser_x as serialize, de_x as deserialize};
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}
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impl SerializeWith for X {
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fn serialize_with<S: Serializer>(_: &Self, _: S) -> StdResult<S::Ok, S::Error> {
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unimplemented!()
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}
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}
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impl DeserializeWith for X {
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fn deserialize_with<'de, D: Deserializer<'de>>(_: D) -> StdResult<Self, D::Error> {
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unimplemented!()
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}
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}
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