serde/test_suite/tests/test_gen.rs
David Tolnay d64a97ba1e
Ignore confusable_idents warning in test
error: found both `σ` and `o` as identifiers, which look alike
       --> test_suite/tests/test_gen.rs:734:13
        |
    292 |         σ: f64,
        |         - other identifier used here
    ...
    734 |             o: T,
        |             ^ this identifier can be confused with `σ`
        |
    note: the lint level is defined here
       --> test_suite/tests/test_gen.rs:5:9
        |
    5   | #![deny(warnings)]
        |         ^^^^^^^^
        = note: `#[deny(confusable_idents)]` implied by `#[deny(warnings)]`
2024-08-07 18:19:51 -07:00

934 lines
23 KiB
Rust
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

// These just test that serde_derive is able to produce code that compiles
// successfully when there are a variety of generics and non-(de)serializable
// types involved.
#![deny(warnings)]
#![allow(
confusable_idents,
unknown_lints,
mixed_script_confusables,
clippy::derive_partial_eq_without_eq,
clippy::extra_unused_type_parameters,
clippy::items_after_statements,
clippy::missing_errors_doc,
clippy::missing_panics_doc,
clippy::must_use_candidate,
// Clippy bug: https://github.com/rust-lang/rust-clippy/issues/7422
clippy::nonstandard_macro_braces,
clippy::ptr_arg,
clippy::too_many_lines,
clippy::trivially_copy_pass_by_ref,
clippy::type_repetition_in_bounds
)]
#![deny(clippy::collection_is_never_read)]
use serde::de::{Deserialize, DeserializeOwned, Deserializer};
use serde::ser::{Serialize, Serializer};
use serde_derive::{Deserialize, Serialize};
use std::borrow::Cow;
use std::marker::PhantomData;
use std::option::Option as StdOption;
use std::result::Result as StdResult;
// Try to trip up the generated code if it fails to use fully qualified paths.
#[allow(dead_code)]
struct Result;
#[allow(dead_code)]
struct Ok;
#[allow(dead_code)]
struct Err;
#[allow(dead_code)]
struct Option;
#[allow(dead_code)]
struct Some;
#[allow(dead_code)]
struct None;
//////////////////////////////////////////////////////////////////////////
#[test]
fn test_gen() {
#[derive(Serialize, Deserialize)]
struct With<T> {
t: T,
#[serde(serialize_with = "ser_x", deserialize_with = "de_x")]
x: X,
}
assert::<With<i32>>();
#[derive(Serialize, Deserialize)]
struct WithTogether<T> {
t: T,
#[serde(with = "both_x")]
x: X,
}
assert::<WithTogether<i32>>();
#[derive(Serialize, Deserialize)]
struct WithRef<'a, T: 'a> {
#[serde(skip_deserializing)]
t: StdOption<&'a T>,
#[serde(serialize_with = "ser_x", deserialize_with = "de_x")]
x: X,
}
assert::<WithRef<i32>>();
#[derive(Serialize, Deserialize)]
struct PhantomX {
x: PhantomData<X>,
}
assert::<PhantomX>();
#[derive(Serialize, Deserialize)]
struct PhantomT<T> {
t: PhantomData<T>,
}
assert::<PhantomT<X>>();
#[derive(Serialize, Deserialize)]
struct NoBounds<T> {
t: T,
option: StdOption<T>,
boxed: Box<T>,
option_boxed: StdOption<Box<T>>,
}
assert::<NoBounds<i32>>();
#[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,
},
}
assert::<EnumWith<i32>>();
#[derive(Serialize)]
struct MultipleRef<'a, 'b, 'c, T>
where
T: 'c,
'c: 'b,
'b: 'a,
{
t: T,
rrrt: &'a &'b &'c T,
}
assert_ser::<MultipleRef<i32>>();
#[derive(Serialize, Deserialize)]
struct Newtype(#[serde(serialize_with = "ser_x", deserialize_with = "de_x")] X);
assert::<Newtype>();
#[derive(Serialize, Deserialize)]
struct Tuple<T>(
T,
#[serde(serialize_with = "ser_x", deserialize_with = "de_x")] X,
);
assert::<Tuple<i32>>();
#[derive(Serialize, Deserialize)]
enum TreeNode<D> {
Split {
left: Box<TreeNode<D>>,
right: Box<TreeNode<D>>,
},
Leaf {
data: D,
},
}
assert::<TreeNode<i32>>();
#[derive(Serialize, Deserialize)]
struct ListNode<D> {
data: D,
next: Box<ListNode<D>>,
}
assert::<ListNode<i32>>();
#[derive(Serialize, Deserialize)]
struct RecursiveA {
b: Box<RecursiveB>,
}
assert::<RecursiveA>();
#[derive(Serialize, Deserialize)]
enum RecursiveB {
A(RecursiveA),
}
assert::<RecursiveB>();
#[derive(Serialize, Deserialize)]
struct RecursiveGenericA<T> {
t: T,
b: Box<RecursiveGenericB<T>>,
}
assert::<RecursiveGenericA<i32>>();
#[derive(Serialize, Deserialize)]
enum RecursiveGenericB<T> {
T(T),
A(RecursiveGenericA<T>),
}
assert::<RecursiveGenericB<i32>>();
#[derive(Serialize)]
struct OptionStatic<'a> {
a: StdOption<&'a str>,
b: StdOption<&'static str>,
}
assert_ser::<OptionStatic>();
#[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,
}
assert::<WithTraits1<X, X>>();
#[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,
}
assert::<WithTraits2<X, X>>();
#[derive(Serialize, Deserialize)]
#[serde(bound = "D: SerializeWith + DeserializeWith")]
enum VariantWithTraits1<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),
}
assert::<VariantWithTraits1<X, X>>();
#[derive(Serialize, Deserialize)]
#[serde(bound(serialize = "D: SerializeWith", deserialize = "D: DeserializeWith"))]
enum VariantWithTraits2<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),
}
assert::<VariantWithTraits2<X, X>>();
type PhantomDataAlias<T> = PhantomData<T>;
#[derive(Serialize, Deserialize)]
#[serde(bound = "")]
struct PhantomDataWrapper<T> {
#[serde(default)]
field: PhantomDataAlias<T>,
}
assert::<PhantomDataWrapper<X>>();
#[derive(Serialize, Deserialize)]
struct CowStr<'a>(Cow<'a, str>);
assert::<CowStr>();
#[derive(Serialize, Deserialize)]
#[serde(bound(deserialize = "T::Owned: DeserializeOwned"))]
struct CowT<'a, T: ?Sized + 'a + ToOwned>(Cow<'a, T>);
assert::<CowT<str>>();
#[derive(Serialize, Deserialize)]
struct EmptyStruct {}
assert::<EmptyStruct>();
#[derive(Serialize, Deserialize)]
enum EmptyEnumVariant {
EmptyStruct {},
}
assert::<EmptyEnumVariant>();
#[derive(Serialize, Deserialize)]
pub struct NonAsciiIdents {
σ: f64,
}
#[derive(Serialize, Deserialize)]
pub struct EmptyBraced {}
#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct EmptyBracedDenyUnknown {}
#[derive(Serialize, Deserialize)]
pub struct BracedSkipAll {
#[serde(skip_deserializing)]
f: u8,
}
#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct BracedSkipAllDenyUnknown {
#[serde(skip_deserializing)]
f: u8,
}
#[derive(Serialize, Deserialize)]
pub struct EmptyTuple();
#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct EmptyTupleDenyUnknown();
#[derive(Serialize, Deserialize)]
pub struct TupleSkipAll(#[serde(skip_deserializing)] u8);
#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct TupleSkipAllDenyUnknown(#[serde(skip_deserializing)] u8);
#[derive(Serialize, Deserialize)]
pub enum EmptyEnum {}
#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub enum EmptyEnumDenyUnknown {}
#[derive(Serialize, Deserialize)]
pub enum EnumSkipAll {
#[serde(skip_deserializing)]
#[allow(dead_code)]
Variant,
}
#[derive(Serialize, Deserialize)]
pub enum EmptyVariants {
Braced {},
Tuple(),
BracedSkip {
#[serde(skip_deserializing)]
f: u8,
},
TupleSkip(#[serde(skip_deserializing)] u8),
}
#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub enum EmptyVariantsDenyUnknown {
Braced {},
Tuple(),
BracedSkip {
#[serde(skip_deserializing)]
f: u8,
},
TupleSkip(#[serde(skip_deserializing)] u8),
}
#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct UnitDenyUnknown;
#[derive(Serialize, Deserialize)]
pub struct EmptyArray {
empty: [X; 0],
}
pub enum Or<A, B> {
A(A),
B(B),
}
#[derive(Serialize, Deserialize)]
#[serde(untagged, remote = "Or")]
pub enum OrDef<A, B> {
A(A),
B(B),
}
struct Str<'a>(&'a str);
#[derive(Serialize, Deserialize)]
#[serde(remote = "Str")]
struct StrDef<'a>(&'a str);
#[derive(Serialize, Deserialize)]
pub struct Remote<'a> {
#[serde(with = "OrDef")]
or: Or<u8, bool>,
#[serde(borrow, with = "StrDef")]
s: Str<'a>,
}
#[derive(Serialize, Deserialize)]
pub enum BorrowVariant<'a> {
#[serde(borrow, with = "StrDef")]
S(Str<'a>),
}
mod vis {
use serde_derive::{Deserialize, Serialize};
pub struct S;
#[derive(Serialize, Deserialize)]
#[serde(remote = "S")]
pub struct SDef;
}
// This would not work if SDef::serialize / deserialize are private.
#[derive(Serialize, Deserialize)]
pub struct RemoteVisibility {
#[serde(with = "vis::SDef")]
s: vis::S,
}
#[derive(Serialize, Deserialize)]
#[serde(remote = "Self")]
pub struct RemoteSelf;
#[derive(Serialize, Deserialize)]
enum ExternallyTaggedVariantWith {
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
#[allow(dead_code)]
Newtype(X),
#[serde(serialize_with = "serialize_some_other_variant")]
#[serde(deserialize_with = "deserialize_some_other_variant")]
#[allow(dead_code)]
Tuple(String, u8),
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
#[allow(dead_code)]
Struct1 { x: X },
#[serde(serialize_with = "serialize_some_other_variant")]
#[serde(deserialize_with = "deserialize_some_other_variant")]
#[allow(dead_code)]
Struct { f1: String, f2: u8 },
#[serde(serialize_with = "serialize_some_unit_variant")]
#[serde(deserialize_with = "deserialize_some_unit_variant")]
#[allow(dead_code)]
Unit,
}
assert_ser::<ExternallyTaggedVariantWith>();
#[derive(Serialize, Deserialize)]
#[serde(tag = "t")]
enum InternallyTaggedVariantWith {
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
#[allow(dead_code)]
Newtype(X),
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
#[allow(dead_code)]
Struct1 { x: X },
#[serde(serialize_with = "serialize_some_other_variant")]
#[serde(deserialize_with = "deserialize_some_other_variant")]
#[allow(dead_code)]
Struct { f1: String, f2: u8 },
#[serde(serialize_with = "serialize_some_unit_variant")]
#[serde(deserialize_with = "deserialize_some_unit_variant")]
#[allow(dead_code)]
Unit,
}
assert_ser::<InternallyTaggedVariantWith>();
#[derive(Serialize, Deserialize)]
#[serde(tag = "t", content = "c")]
enum AdjacentlyTaggedVariantWith {
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
#[allow(dead_code)]
Newtype(X),
#[serde(serialize_with = "serialize_some_other_variant")]
#[serde(deserialize_with = "deserialize_some_other_variant")]
#[allow(dead_code)]
Tuple(String, u8),
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
#[allow(dead_code)]
Struct1 { x: X },
#[serde(serialize_with = "serialize_some_other_variant")]
#[serde(deserialize_with = "deserialize_some_other_variant")]
#[allow(dead_code)]
Struct { f1: String, f2: u8 },
#[serde(serialize_with = "serialize_some_unit_variant")]
#[serde(deserialize_with = "deserialize_some_unit_variant")]
#[allow(dead_code)]
Unit,
}
assert_ser::<AdjacentlyTaggedVariantWith>();
#[derive(Serialize, Deserialize)]
#[serde(untagged)]
enum UntaggedVariantWith {
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
#[allow(dead_code)]
Newtype(X),
#[serde(serialize_with = "serialize_some_other_variant")]
#[serde(deserialize_with = "deserialize_some_other_variant")]
#[allow(dead_code)]
Tuple(String, u8),
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
#[allow(dead_code)]
Struct1 { x: X },
#[serde(serialize_with = "serialize_some_other_variant")]
#[serde(deserialize_with = "deserialize_some_other_variant")]
#[allow(dead_code)]
Struct { f1: String, f2: u8 },
#[serde(serialize_with = "serialize_some_unit_variant")]
#[serde(deserialize_with = "deserialize_some_unit_variant")]
#[allow(dead_code)]
Unit,
}
assert_ser::<UntaggedVariantWith>();
#[derive(Serialize, Deserialize)]
struct FlattenWith {
#[serde(flatten, serialize_with = "ser_x", deserialize_with = "de_x")]
x: X,
}
assert::<FlattenWith>();
#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct FlattenDenyUnknown<T> {
#[serde(flatten)]
t: T,
}
#[derive(Serialize, Deserialize)]
pub struct StaticStrStruct<'a> {
a: &'a str,
b: &'static str,
}
#[derive(Serialize, Deserialize)]
pub struct StaticStrTupleStruct<'a>(&'a str, &'static str);
#[derive(Serialize, Deserialize)]
pub struct StaticStrNewtypeStruct(&'static str);
#[derive(Serialize, Deserialize)]
pub enum StaticStrEnum<'a> {
Struct { a: &'a str, b: &'static str },
Tuple(&'a str, &'static str),
Newtype(&'static str),
}
#[derive(Serialize, Deserialize)]
struct SkippedStaticStr {
#[serde(skip_deserializing)]
skipped: &'static str,
other: isize,
}
assert::<SkippedStaticStr>();
macro_rules! T {
() => {
()
};
}
#[derive(Serialize, Deserialize)]
struct TypeMacro<T> {
mac: T!(),
marker: PhantomData<T>,
}
assert::<TypeMacro<X>>();
#[derive(Serialize)]
struct BigArray {
#[serde(serialize_with = "<[_]>::serialize")]
array: [u8; 256],
}
assert_ser::<BigArray>();
trait AssocSerde {
type Assoc;
}
struct NoSerdeImpl;
impl AssocSerde for NoSerdeImpl {
type Assoc = u32;
}
#[derive(Serialize, Deserialize)]
struct AssocDerive<T: AssocSerde> {
assoc: T::Assoc,
}
assert::<AssocDerive<NoSerdeImpl>>();
#[derive(Serialize, Deserialize)]
struct AssocDeriveMulti<S, T: AssocSerde> {
s: S,
assoc: T::Assoc,
}
assert::<AssocDeriveMulti<i32, NoSerdeImpl>>();
#[derive(Serialize)]
#[serde(tag = "t", content = "c")]
enum EmptyAdjacentlyTagged {
#[allow(dead_code)]
Struct {},
#[allow(dead_code)]
Tuple(),
}
assert_ser::<EmptyAdjacentlyTagged>();
mod restricted {
mod inner {
use serde_derive::{Deserialize, Serialize};
#[derive(Serialize, Deserialize)]
#[allow(dead_code)]
struct Restricted {
pub(super) a: usize,
pub(in super::inner) b: usize,
}
}
}
#[derive(Deserialize)]
#[serde(tag = "t", content = "c")]
pub enum AdjacentlyTaggedVoid {}
#[derive(Serialize, Deserialize)]
enum SkippedVariant<T> {
#[serde(skip)]
#[allow(dead_code)]
T(T),
Unit,
}
assert::<SkippedVariant<X>>();
#[derive(Deserialize)]
pub struct ImplicitlyBorrowedOption<'a> {
option: std::option::Option<&'a str>,
}
#[derive(Serialize, Deserialize)]
#[serde(untagged)]
pub enum UntaggedNewtypeVariantWith {
Newtype(
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
X,
),
}
#[derive(Serialize, Deserialize)]
#[serde(transparent)]
pub struct TransparentWith {
#[serde(serialize_with = "ser_x")]
#[serde(deserialize_with = "de_x")]
x: X,
}
#[derive(Deserialize)]
#[serde(untagged)]
pub enum UntaggedWithBorrow<'a> {
Single(
#[serde(borrow)]
#[allow(dead_code)]
RelObject<'a>,
),
Many(
#[serde(borrow)]
#[allow(dead_code)]
Vec<RelObject<'a>>,
),
}
#[derive(Deserialize)]
pub struct RelObject<'a> {
ty: &'a str,
id: String,
}
#[derive(Serialize, Deserialize)]
pub struct FlattenSkipSerializing<T> {
#[serde(flatten, skip_serializing)]
#[allow(dead_code)]
flat: T,
}
#[derive(Serialize, Deserialize)]
pub struct FlattenSkipSerializingIf<T> {
#[serde(flatten, skip_serializing_if = "StdOption::is_none")]
flat: StdOption<T>,
}
#[derive(Serialize, Deserialize)]
pub struct FlattenSkipDeserializing<T> {
#[serde(flatten, skip_deserializing)]
flat: T,
}
#[derive(Serialize, Deserialize)]
#[serde(untagged)]
pub enum Inner<T> {
Builder {
s: T,
#[serde(flatten)]
o: T,
},
Default {
s: T,
},
}
// https://github.com/serde-rs/serde/issues/1804
#[derive(Serialize, Deserialize)]
pub enum Message {
#[serde(skip)]
#[allow(dead_code)]
String(String),
#[serde(other)]
Unknown,
}
#[derive(Serialize)]
#[repr(packed)]
#[allow(dead_code)]
struct Packed {
x: u8,
y: u16,
}
macro_rules! deriving {
($field:ty) => {
#[derive(Deserialize)]
pub struct MacroRules<'a> {
field: $field,
}
};
}
deriving!(&'a str);
macro_rules! mac {
($($tt:tt)*) => {
$($tt)*
};
}
#[derive(Deserialize)]
pub struct BorrowLifetimeInsideMacro<'a> {
#[serde(borrow = "'a")]
pub f: mac!(Cow<'a, str>),
}
#[derive(Serialize)]
pub struct Struct {
#[serde(serialize_with = "vec_first_element")]
pub vec: Vec<Self>,
}
#[derive(Deserialize)]
#[serde(bound(deserialize = "[&'de str; N]: Copy"))]
pub struct GenericUnitStruct<const N: usize>;
}
//////////////////////////////////////////////////////////////////////////
fn assert<T: Serialize + DeserializeOwned>() {}
fn assert_ser<T: Serialize>() {}
trait SerializeWith {
fn serialize_with<S: Serializer>(_: &Self, _: S) -> StdResult<S::Ok, S::Error>;
}
trait DeserializeWith: Sized {
fn deserialize_with<'de, D: Deserializer<'de>>(_: D) -> StdResult<Self, D::Error>;
}
// Implements neither Serialize nor Deserialize
pub struct X;
pub fn ser_x<S: Serializer>(_: &X, _: S) -> StdResult<S::Ok, S::Error> {
unimplemented!()
}
pub fn de_x<'de, D: Deserializer<'de>>(_: D) -> StdResult<X, D::Error> {
unimplemented!()
}
mod both_x {
pub use super::{de_x as deserialize, ser_x as serialize};
}
impl SerializeWith for X {
fn serialize_with<S: Serializer>(_: &Self, _: S) -> StdResult<S::Ok, S::Error> {
unimplemented!()
}
}
impl DeserializeWith for X {
fn deserialize_with<'de, D: Deserializer<'de>>(_: D) -> StdResult<Self, D::Error> {
unimplemented!()
}
}
pub fn serialize_some_unit_variant<S>(_: S) -> StdResult<S::Ok, S::Error>
where
S: Serializer,
{
unimplemented!()
}
pub fn deserialize_some_unit_variant<'de, D>(_: D) -> StdResult<(), D::Error>
where
D: Deserializer<'de>,
{
unimplemented!()
}
pub fn serialize_some_other_variant<S>(_: &str, _: &u8, _: S) -> StdResult<S::Ok, S::Error>
where
S: Serializer,
{
unimplemented!()
}
pub fn deserialize_some_other_variant<'de, D>(_: D) -> StdResult<(String, u8), D::Error>
where
D: Deserializer<'de>,
{
unimplemented!()
}
pub fn is_zero(n: &u8) -> bool {
*n == 0
}
fn vec_first_element<T, S>(vec: &[T], serializer: S) -> StdResult<S::Ok, S::Error>
where
T: Serialize,
S: Serializer,
{
vec.first().serialize(serializer)
}
//////////////////////////////////////////////////////////////////////////
#[derive(Debug, PartialEq, Deserialize)]
#[serde(tag = "tag")]
pub enum InternallyTagged {
#[serde(deserialize_with = "deserialize_generic")]
Unit,
#[serde(deserialize_with = "deserialize_generic")]
Newtype(i32),
#[serde(deserialize_with = "deserialize_generic")]
Struct { f1: String, f2: u8 },
}
fn deserialize_generic<'de, T, D>(deserializer: D) -> StdResult<T, D::Error>
where
T: Deserialize<'de>,
D: Deserializer<'de>,
{
T::deserialize(deserializer)
}
//////////////////////////////////////////////////////////////////////////
#[repr(packed)]
pub struct RemotePacked {
pub a: u16,
pub b: u32,
}
#[derive(Serialize)]
#[repr(packed)]
#[serde(remote = "RemotePacked")]
pub struct RemotePackedDef {
a: u16,
b: u32,
}
impl Drop for RemotePackedDef {
fn drop(&mut self) {}
}
#[repr(packed)]
pub struct RemotePackedNonCopy {
pub a: u16,
pub b: String,
}
#[derive(Deserialize)]
#[repr(packed)]
#[serde(remote = "RemotePackedNonCopy")]
pub struct RemotePackedNonCopyDef {
a: u16,
b: String,
}
impl Drop for RemotePackedNonCopyDef {
fn drop(&mut self) {}
}