46 lines
1.1 KiB
Rust
46 lines
1.1 KiB
Rust
#![allow(
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clippy::extra_unused_type_parameters,
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clippy::type_repetition_in_bounds
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)]
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#[test]
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fn test_gen_custom_serde() {
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#[derive(serde_derive::Serialize, serde_derive::Deserialize)]
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#[serde(crate = "fake_serde")]
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struct Foo;
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// Would be overlapping if serde::Serialize were implemented
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impl AssertNotSerdeSerialize for Foo {}
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// Would be overlapping if serde::Deserialize were implemented
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impl<'a> AssertNotSerdeDeserialize<'a> for Foo {}
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fake_serde::assert::<Foo>();
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}
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mod fake_serde {
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pub use serde::*;
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pub fn assert<T>()
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where
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T: Serialize,
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T: for<'a> Deserialize<'a>,
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{
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}
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pub trait Serialize {
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fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>;
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}
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pub trait Deserialize<'a>: Sized {
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fn deserialize<D: Deserializer<'a>>(deserializer: D) -> Result<Self, D::Error>;
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}
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}
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trait AssertNotSerdeSerialize {}
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impl<T: serde::Serialize> AssertNotSerdeSerialize for T {}
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trait AssertNotSerdeDeserialize<'a> {}
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impl<'a, T: serde::Deserialize<'a>> AssertNotSerdeDeserialize<'a> for T {}
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