Merge pull request #28 from alecmocatta/fix-nightly

Fix on latest nightly

Author: alecmocatta

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde_traitobject"
-version = "0.2.5"
+version = "0.2.6"
 license = "MIT OR Apache-2.0"
 authors = ["Alec Mocatta <[email protected]>"]
 categories = ["development-tools","encoding","rust-patterns","network-programming"]
@@ -12,7 +12,7 @@ This library enables the serialization and deserialization of trait objects such
 """
 repository = "https://github.com/alecmocatta/serde_traitobject"
 homepage = "https://github.com/alecmocatta/serde_traitobject"
-documentation = "https://docs.rs/serde_traitobject/0.2.5"
+documentation = "https://docs.rs/serde_traitobject/0.2.6"
 readme = "README.md"
 edition = "2018"
 

README.md

@@ -4,15 +4,15 @@
 [![MIT / Apache 2.0 licensed](https://img.shields.io/crates/l/serde_traitobject.svg?maxAge=2592000)](#License)
 [![Build Status](https://dev.azure.com/alecmocatta/serde_traitobject/_apis/build/status/tests?branchName=master)](https://dev.azure.com/alecmocatta/serde_traitobject/_build?definitionId=9)
 
-[📖 Docs](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/) | [💬 Chat](https://constellation.zulipchat.com/#narrow/stream/213236-subprojects)
+[📖 Docs](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/) | [💬 Chat](https://constellation.zulipchat.com/#narrow/stream/213236-subprojects)
 
 **Serializable and deserializable trait objects.**
 
 This library enables the serialization and deserialization of trait objects so they can be sent between other processes running the same binary.
 
 For example, if you have multiple forks of a process, or the same binary running on each of a cluster of machines, this library lets you send trait objects between them.
 
-Any trait can be made (de)serializable when made into a trait object by adding this crate's [Serialize](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/trait.Serialize.html) and [Deserialize](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/trait.Deserialize.html) traits as supertraits:
+Any trait can be made (de)serializable when made into a trait object by adding this crate's [Serialize](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/trait.Serialize.html) and [Deserialize](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/trait.Deserialize.html) traits as supertraits:
 
 ```rust
 trait MyTrait: serde_traitobject::Serialize + serde_traitobject::Deserialize {
@@ -31,12 +31,12 @@ struct Message {
 And that's it! The two traits are automatically implemented for all `T: serde::Serialize` and all `T: serde::de::DeserializeOwned`, so as long as all implementors of your trait are themselves serializable then you're good to go.
 
 There are two ways to (de)serialize your trait object:
- * Apply the `#[serde(with = "serde_traitobject")]` [field attribute](https://serde.rs/attributes.html), which instructs serde to use this crate's [serialize](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/fn.serialize.html) and [deserialize](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/fn.deserialize.html) functions;
- * The [Box](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/struct.Box.html), [Rc](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/struct.Rc.html) and [Arc](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/struct.Arc.html) structs, which are simple wrappers around their stdlib counterparts that automatically handle (de)serialization without needing the above annotation;
+ * Apply the `#[serde(with = "serde_traitobject")]` [field attribute](https://serde.rs/attributes.html), which instructs serde to use this crate's [serialize](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/fn.serialize.html) and [deserialize](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/fn.deserialize.html) functions;
+ * The [Box](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/struct.Box.html), [Rc](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/struct.Rc.html) and [Arc](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/struct.Arc.html) structs, which are simple wrappers around their stdlib counterparts that automatically handle (de)serialization without needing the above annotation;
 
 Additionally, there are several convenience traits implemented that extend their stdlib counterparts:
 
- * [Any](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/trait.Any.html), [Debug](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/trait.Debug.html), [Display](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/trait.Display.html), [Error](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/trait.Error.html), [Fn](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/trait.Fn.html), [FnMut](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/trait.FnMut.html), [FnOnce](https://docs.rs/serde_traitobject/0.2.5/serde_traitobject/trait.FnOnce.html)
+ * [Any](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/trait.Any.html), [Debug](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/trait.Debug.html), [Display](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/trait.Display.html), [Error](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/trait.Error.html), [Fn](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/trait.Fn.html), [FnMut](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/trait.FnMut.html), [FnOnce](https://docs.rs/serde_traitobject/0.2.6/serde_traitobject/trait.FnOnce.html)
 
 These are automatically implemented on all implementors of their stdlib counterparts that also implement `serde::Serialize` and `serde::de::DeserializeOwned`.
 

azure-pipelines.yml

@@ -14,7 +14,7 @@ jobs:
     endpoint: alecmocatta
     default:
       rust_toolchain: nightly
-      rust_lint_toolchain: nightly-2020-06-10
+      rust_lint_toolchain: nightly-2020-06-25
       rust_flags: ''
       rust_features: ''
       rust_target_check: ''

src/convenience.rs

@@ -704,16 +704,6 @@ impl<'a, Args, Output> AsRef<Self> for dyn FnOnce<Args, Output = Output> + Send
 		self
 	}
 }
-impl<'a, A, Output> AsRef<Self> for dyn for<'r> FnOnce<(&'r A,), Output = Output> + 'a {
-	fn as_ref(&self) -> &Self {
-		self
-	}
-}
-impl<'a, A, Output> AsRef<Self> for dyn for<'r> FnOnce<(&'r A,), Output = Output> + Send + 'a {
-	fn as_ref(&self) -> &Self {
-		self
-	}
-}
 
 impl<Args: 'static, Output: 'static> serde::ser::Serialize for dyn FnOnce<Args, Output = Output> {
 	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
@@ -754,50 +744,6 @@ impl<'de, Args: 'static, Output: 'static> serde::de::Deserialize<'de>
 			.map(|x| x.0)
 	}
 }
-impl<A: 'static, Output: 'static> serde::ser::Serialize
-	for dyn for<'r> FnOnce<(&'r A,), Output = Output>
-{
-	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-	where
-		S: serde::Serializer,
-	{
-		serialize(self, serializer)
-	}
-}
-impl<'de, A: 'static, Output: 'static> serde::de::Deserialize<'de>
-	for boxed::Box<dyn for<'r> FnOnce<(&'r A,), Output = Output> + 'static>
-{
-	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-	where
-		D: serde::Deserializer<'de>,
-	{
-		<Box<dyn for<'r> FnOnce<(&'r A,), Output = Output> + 'static>>::deserialize(deserializer)
-			.map(|x| x.0)
-	}
-}
-impl<A: 'static, Output: 'static> serde::ser::Serialize
-	for dyn for<'r> FnOnce<(&'r A,), Output = Output> + Send
-{
-	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-	where
-		S: serde::Serializer,
-	{
-		serialize(self, serializer)
-	}
-}
-impl<'de, A: 'static, Output: 'static> serde::de::Deserialize<'de>
-	for boxed::Box<dyn for<'r> FnOnce<(&'r A,), Output = Output> + Send + 'static>
-{
-	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-	where
-		D: serde::Deserializer<'de>,
-	{
-		<Box<dyn for<'r> FnOnce<(&'r A,), Output = Output> + Send + 'static>>::deserialize(
-			deserializer,
-		)
-		.map(|x| x.0)
-	}
-}
 
 /// A convenience trait implemented on all (de)serializable implementors of [`std::ops::FnMut`].
 ///

src/lib.rs

@@ -99,7 +99,7 @@
 //!
 //! This crate currently requires Rust nightly.
 
-#![doc(html_root_url = "https://docs.rs/serde_traitobject/0.2.5")]
+#![doc(html_root_url = "https://docs.rs/serde_traitobject/0.2.6")]
 #![feature(
 	arbitrary_self_types,
 	coerce_unsized,
@@ -119,10 +119,11 @@
 	unused_results,
 	clippy::pedantic
 )] // from https://github.com/rust-unofficial/patterns/blob/master/anti_patterns/deny-warnings.md
-#![allow(clippy::must_use_candidate, clippy::missing_errors_doc)]
-// At some point this, and the HRTB Fn* impls, will be invalid
-// See https://github.com/rust-lang/rust/issues/56105
-#![allow(coherence_leak_check)]
+#![allow(
+	clippy::must_use_candidate,
+	clippy::missing_errors_doc,
+	incomplete_features
+)]
 
 mod convenience;
 

tests/test.rs

@@ -10,43 +10,44 @@
 	unused_results,
 	clippy::pedantic
 )] // from https://github.com/rust-unofficial/patterns/blob/master/anti_patterns/deny-warnings.md
-#![allow(clippy::unseparated_literal_suffix)]
+#![allow(clippy::unseparated_literal_suffix, dead_code)]
 
 use serde_closure::Fn;
 use serde_derive::{Deserialize, Serialize};
+use serde_traitobject as st;
 use serde_traitobject::{Deserialize, Serialize};
 use std::{any, env, process, rc};
 use wasm_bindgen_test::wasm_bindgen_test;
 
 #[derive(Serialize, Deserialize)]
 struct Abc {
-	#[serde(with = "serde_traitobject")]
+	#[serde(with = "st")]
 	a: rc::Rc<dyn HelloSerialize>,
-	b: serde_traitobject::Rc<dyn HelloSerialize>,
-	#[serde(with = "serde_traitobject")]
+	b: st::Rc<dyn HelloSerialize>,
+	#[serde(with = "st")]
 	c: Box<dyn HelloSerialize>,
-	d: serde_traitobject::Box<dyn HelloSerialize>,
-	#[serde(with = "serde_traitobject")]
-	e: Box<dyn serde_traitobject::Any>,
-	f: serde_traitobject::Box<dyn serde_traitobject::Any>,
-	g: serde_traitobject::Box<dyn serde_traitobject::Fn(usize) -> String>,
-	h: serde_traitobject::Box<dyn serde_traitobject::Any>,
-	i: serde_traitobject::Box<dyn serde_traitobject::Any>,
-	j: serde_traitobject::Box<String>,
-	#[serde(with = "serde_traitobject")]
+	d: st::Box<dyn HelloSerialize>,
+	#[serde(with = "st")]
+	e: Box<dyn st::Any>,
+	f: st::Box<dyn st::Any>,
+	g: st::Box<dyn st::Fn(usize) -> String>,
+	h: st::Box<dyn st::Any>,
+	i: st::Box<dyn st::Any>,
+	j: st::Box<String>,
+	#[serde(with = "st")]
 	k: Box<String>,
-	l: serde_traitobject::Box<str>,
-	#[serde(with = "serde_traitobject")]
+	l: st::Box<str>,
+	#[serde(with = "st")]
 	m: Box<str>,
-	n: serde_traitobject::Box<[u16]>,
-	#[serde(with = "serde_traitobject")]
+	n: st::Box<[u16]>,
+	#[serde(with = "st")]
 	o: Box<[u16]>,
 }
 
 #[derive(Serialize)]
 struct Def<'a> {
-	a: &'a (dyn serde_traitobject::FnOnce<(), Output = ()> + 'static),
-	c: &'a mut (dyn serde_traitobject::FnOnce<(), Output = ()> + 'static),
+	a: &'a (dyn st::FnOnce<(), Output = ()> + 'static),
+	c: &'a mut (dyn st::FnOnce<(), Output = ()> + 'static),
 }
 
 trait Hello {
@@ -76,7 +77,7 @@ impl Hello for u8 {
 
 #[derive(Serialize)]
 struct Ghi<'a> {
-	#[serde(with = "serde_traitobject")]
+	#[serde(with = "st")]
 	e: &'a (dyn Hello2Serialize + 'static),
 }
 trait Hello2 {}
@@ -88,6 +89,17 @@ impl<'a> AsRef<dyn Hello2Serialize + 'a> for dyn Hello2Serialize {
 	}
 }
 
+type Request = st::Box<dyn for<'a> st::FnOnce<(&'a String,), Output = ()> + Send>;
+
+fn _assert() {
+	fn assert_serializable<T>()
+	where
+		T: serde::Serialize + for<'de> serde::Deserialize<'de>,
+	{
+	}
+	assert_serializable::<Request>();
+}
+
 #[wasm_bindgen_test]
 #[allow(clippy::too_many_lines)]
 fn main() {
@@ -122,17 +134,14 @@ fn main() {
 		);
 		assert_eq!(g(22), "hey 123!");
 		assert_eq!(
-			***Box::<dyn any::Any>::downcast::<serde_traitobject::Box<usize>>(h.into_any())
-				.unwrap(),
+			***Box::<dyn any::Any>::downcast::<st::Box<usize>>(h.into_any()).unwrap(),
 			987_654_321
 		);
 		assert_eq!(
 			*Box::<dyn any::Any>::downcast::<usize>(
-				Box::<dyn any::Any>::downcast::<serde_traitobject::Box<dyn serde_traitobject::Any>>(
-					i.into_any()
-				)
-				.unwrap()
-				.into_any()
+				Box::<dyn any::Any>::downcast::<st::Box<dyn st::Any>>(i.into_any())
+					.unwrap()
+					.into_any()
 			)
 			.unwrap(),
 			987_654_321
@@ -151,28 +160,24 @@ fn main() {
 		let a: Box<dyn any::Any> = *a;
 		let _: Box<usize> = Box::<dyn any::Any>::downcast(a).unwrap();
 
-		let a: serde_traitobject::Box<dyn serde_traitobject::Any> =
-			serde_traitobject::Box::new(serde_traitobject::Box::new(1usize)
-				as serde_traitobject::Box<dyn serde_traitobject::Any>);
+		let a: st::Box<dyn st::Any> = st::Box::new(st::Box::new(1usize) as st::Box<dyn st::Any>);
 		let a: Box<dyn any::Any> = a.into_any();
-		let a: Box<serde_traitobject::Box<dyn serde_traitobject::Any>> =
-			Box::<dyn any::Any>::downcast(a).unwrap();
-		let a: serde_traitobject::Box<dyn serde_traitobject::Any> = *a;
+		let a: Box<st::Box<dyn st::Any>> = Box::<dyn any::Any>::downcast(a).unwrap();
+		let a: st::Box<dyn st::Any> = *a;
 		let a: Box<dyn any::Any> = a.into_any();
 		let _: Box<usize> = Box::<dyn any::Any>::downcast(a).unwrap();
 
 		let original = Abc {
 			a: rc::Rc::new(123u16),
-			b: serde_traitobject::Rc::new(456u16),
+			b: st::Rc::new(456u16),
 			c: Box::new(789u32),
-			d: serde_traitobject::Box::new(101u8),
+			d: st::Box::new(101u8),
 			e: Box::new(78u8),
-			f: serde_traitobject::Box::new(78u8),
-			g: serde_traitobject::Box::new(Fn!(|a: usize| format!("hey {}!", a + 101))),
-			h: serde_traitobject::Box::new(serde_traitobject::Box::new(987_654_321usize)),
-			i: serde_traitobject::Box::new(serde_traitobject::Box::new(987_654_321usize)
-				as serde_traitobject::Box<dyn serde_traitobject::Any>),
-			j: serde_traitobject::Box::new(String::from("abc")),
+			f: st::Box::new(78u8),
+			g: st::Box::new(Fn!(|a: usize| format!("hey {}!", a + 101))),
+			h: st::Box::new(st::Box::new(987_654_321usize)),
+			i: st::Box::new(st::Box::new(987_654_321usize) as st::Box<dyn st::Any>),
+			j: st::Box::new(String::from("abc")),
 			k: Box::new(String::from("def")),
 			l: Into::<Box<str>>::into(String::from("ghi")).into(),
 			m: String::from("jkl").into(),
@@ -185,39 +190,27 @@ fn main() {
 		let a2 = bincode::deserialize(&a2).unwrap();
 		test(a1);
 		test(a2);
-		let a1 = serde_json::to_string(
-			&(serde_traitobject::Box::new(78u8)
-				as serde_traitobject::Box<dyn serde_traitobject::Debug>),
-		)
-		.unwrap();
-		let a1r: Result<serde_traitobject::Box<dyn serde_traitobject::Debug>, _> =
-			serde_json::from_str(&a1);
+		let a1 = serde_json::to_string(&(st::Box::new(78u8) as st::Box<dyn st::Debug>)).unwrap();
+		let a1r: Result<st::Box<dyn st::Debug>, _> = serde_json::from_str(&a1);
 		assert!(a1r.is_ok());
-		let a1r: Result<serde_traitobject::Box<dyn serde_traitobject::Any>, _> =
-			serde_json::from_str(&a1);
+		let a1r: Result<st::Box<dyn st::Any>, _> = serde_json::from_str(&a1);
 		assert!(a1r.is_err());
-		let a1 = bincode::serialize(
-			&(serde_traitobject::Box::new(78u8)
-				as serde_traitobject::Box<dyn serde_traitobject::Debug>),
-		)
-		.unwrap();
-		let a1: Result<serde_traitobject::Box<dyn serde_traitobject::Any>, _> =
-			bincode::deserialize(&a1);
+		let a1 = bincode::serialize(&(st::Box::new(78u8) as st::Box<dyn st::Debug>)).unwrap();
+		let a1: Result<st::Box<dyn st::Any>, _> = bincode::deserialize(&a1);
 		assert!(a1.is_err());
 	}
 
 	let original = Abc {
 		a: rc::Rc::new(123u16),
-		b: serde_traitobject::Rc::new(456u16),
+		b: st::Rc::new(456u16),
 		c: Box::new(789u32),
-		d: serde_traitobject::Box::new(101u8),
+		d: st::Box::new(101u8),
 		e: Box::new(78u8),
-		f: serde_traitobject::Box::new(78u8),
-		g: serde_traitobject::Box::new(Fn!(|a: usize| format!("hey {}!", a + 101))),
-		h: serde_traitobject::Box::new(serde_traitobject::Box::new(987_654_321usize)),
-		i: serde_traitobject::Box::new(serde_traitobject::Box::new(987_654_321usize)
-			as serde_traitobject::Box<dyn serde_traitobject::Any>),
-		j: serde_traitobject::Box::new(String::from("abc")),
+		f: st::Box::new(78u8),
+		g: st::Box::new(Fn!(|a: usize| format!("hey {}!", a + 101))),
+		h: st::Box::new(st::Box::new(987_654_321usize)),
+		i: st::Box::new(st::Box::new(987_654_321usize) as st::Box<dyn st::Any>),
+		j: st::Box::new(String::from("abc")),
 		k: Box::new(String::from("def")),
 		l: Into::<Box<str>>::into(String::from("ghi")).into(),
 		m: String::from("jkl").into(),