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27 Commits

Author SHA1 Message Date
David Tolnay 0be7f36d51 Release 1.0.90 2019-04-03 09:41:38 -07:00
David Tolnay 4c6cb6e359 Match on serde_path to handle Some(path) and None
I find this a bit easier to follow than map + unwrap_or_else.
2019-04-03 09:40:25 -07:00
David Tolnay 82bde8d166 Format with rustfmt 2019-03-27 2019-04-03 09:40:12 -07:00
David Tolnay 465392b618 Merge pull request #1499 from sgrif/sg-custom-serde-path
Allow `#[serde(crate = "...")]` to override `extern crate serde`
2019-04-03 09:32:07 -07:00
David Tolnay f3c6b9f05a Simplify signature of Container::serde_path 2019-04-03 09:18:45 -07:00
David Tolnay 2f1945eaf2 Refer directly to serde_path in Deserialize impl
This makes it not a breaking change if we later want to eliminate
the `use #serde_path as _serde;` line.
2019-04-03 09:16:21 -07:00
Sean Griffin b4d8a55b2a Change serde_path to crate
Also changed the generated code to have at least one thing refer to the
path directly, rather than via `use` -- This shows that the impl *can*
work without `use`, but doesn't actually do all the work to remove the
`use` lines unless we decide we need this feature to work on the 2015
edition
2019-03-28 11:42:50 -06:00
Sean Griffin 0e6ce8fa50 Fix for Rust 1.15 2019-03-20 14:31:49 -06:00
Sean Griffin a295c38ba3 Allow #[serde(serde_path = "...")] to override extern crate serde
This is intended to be used by other crates which provide their own proc
macros and use serde internally. Today there's no consistent way to put
`#[derive(Deserialize)]` on a struct that consistently works, since
crates may be using either `features = ["derive"]` or relying on
`serde_derive` separately.

Even if we assume that everyone is using `features = ["derive"]`,
without this commit, any crate which generates
`#[derive(serde::Deserialize)]` forces its consumers to put `serde` in
their `Cargo.toml`, even if they aren't otherwise using serde for
anything.

Examples of crates which suffer from this in the real world are
tower-web and swirl.

With this feature, it's expected that these crates would have `pub
extern crate serde;` in some accessible path, and add
`#[serde(serde_path = "that_crate::wherever::serde")]` anywhere they
place serde's derives. Those crates would also have to derive
`that_crate::whatever::serde::Deserialize`, or `use` the macros
explicitly beforehand.

The test for this is a little funky, as it's testing this in a way that
is not the intended use case, or even one we want to support. It has its
own module which re-exports all of serde, but defines its own
`Serialize` and `Deserialize` traits. We then test that we generated
impls for those traits, instead of serde's. The only other way to test
this would be to create a new test crate which does not depend on serde,
but instead depends on `serde_derive` and a third crate which publicly
re-exports serde. This feels like way too much overhead for a single
test case, hence the funky test given.

I didn't see anywhere in this repo to document this attribute, so I
assume the docs will have to be done as a separate PR to a separate
repo.

Fixes #1487
2019-03-18 15:20:19 -06:00
David Tolnay 295730ba1e Clippy cyclomatic complexity lint has been renamed 2019-03-09 16:36:51 -08:00
David Tolnay ac0d8f61c5 Use non-preview name of Clippy rustup component 2019-03-01 23:11:06 -08:00
David Tolnay b811588fa0 Release 1.0.89 2019-02-28 17:09:10 -08:00
David Tolnay 5fcdf0ff2b Sort version-conditional imports at the bottom 2019-02-28 16:53:13 -08:00
David Tolnay 650b723da3 Format with rustfmt 2019-02-14 2019-02-28 16:40:54 -08:00
David Tolnay 97920be33a Merge pull request #1486 from vorot93/reverse
impl Serialize and Deserialize for core::cmp::Reverse
2019-02-28 16:39:54 -08:00
David Tolnay 58bbaa9e80 Refer to Option through serde::export in generated code 2019-02-28 16:36:17 -08:00
David Tolnay 94f152730c Merge pull request #1492 from thomaseizinger/1491-clippy-warning
Don't generate code with redundant closures
2019-02-28 16:35:59 -08:00
David Tolnay 535e3d4372 Mention rc feature in list of trait impls in documentation 2019-02-28 01:13:36 -08:00
Thomas Eizinger 2ea43c8986 Don't generate code with redundant closures
Fixes #1491.
2019-02-28 17:30:21 +11:00
Artem Vorotnikov 71fe2a5534 Reverse impls available for Rust >=1.19 2019-02-20 12:56:35 +03:00
Artem Vorotnikov f3ffcfd61e impl Serialize and Deserialize for core::cmp::Reverse 2019-02-20 04:32:55 +03:00
David Tolnay bf27b28554 Simplify running update-references.sh 2019-02-17 10:58:46 -08:00
David Tolnay 344602d27e Make array ser impls macro better fit rustfmt style 2019-02-16 15:22:53 -08:00
David Tolnay 64c483cf80 Release 1.0.88 2019-02-15 19:55:50 -08:00
David Tolnay 19091aacc7 Fix mistaken double negative in flatten error message 2019-02-15 18:56:31 -08:00
David Tolnay ef9028d798 Remove conflict between flatten and skip 2019-02-15 18:39:15 -08:00
David Tolnay 1668cd19d3 Eliminate try!(..).value to improve rustfmt'd code
Rustfmt bails out on the original code, leaving it all on one line.
2019-02-13 09:13:50 -08:00
30 changed files with 232 additions and 159 deletions
+1 -1
View File
@@ -54,7 +54,7 @@ matrix:
- rust: nightly
name: Clippy
script:
- rustup component add clippy-preview || travis_terminate 0
- rustup component add clippy || travis_terminate 0
- cargo clippy -- -D clippy::all
- cd "${TRAVIS_BUILD_DIR}/serde"
- cargo clippy --features rc,unstable -- -D clippy::all
+1 -1
View File
@@ -1,6 +1,6 @@
[package]
name = "serde"
version = "1.0.87" # remember to update html_root_url
version = "1.0.90" # remember to update html_root_url
authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
license = "MIT/Apache-2.0"
description = "A generic serialization/deserialization framework"
+6
View File
@@ -23,6 +23,12 @@ fn main() {
println!("cargo:rustc-cfg=collections_bound");
}
// core::cmp::Reverse stabilized in Rust 1.19:
// https://doc.rust-lang.org/stable/core/cmp/struct.Reverse.html
if minor >= 19 {
println!("cargo:rustc-cfg=core_reverse");
}
// CString::into_boxed_c_str stabilized in Rust 1.20:
// https://doc.rust-lang.org/std/ffi/struct.CString.html#method.into_boxed_c_str
if minor >= 20 {
+3
View File
@@ -578,6 +578,9 @@ macro_rules! forwarded_impl {
#[cfg(all(feature = "std", de_boxed_c_str))]
forwarded_impl!((), Box<CStr>, CString::into_boxed_c_str);
#[cfg(core_reverse)]
forwarded_impl!((T), Reverse<T>, Reverse);
////////////////////////////////////////////////////////////////////////////////
struct OptionVisitor<T> {
+2 -2
View File
@@ -59,13 +59,13 @@
//! - Box\<T\>
//! - Box\<\[T\]\>
//! - Box\<str\>
//! - Rc\<T\>
//! - Arc\<T\>
//! - Cow\<'a, T\>
//! - Cell\<T\>
//! - RefCell\<T\>
//! - Mutex\<T\>
//! - RwLock\<T\>
//! - Rc\<T\>&emsp;*(if* features = ["rc"] *is enabled)*
//! - Arc\<T\>&emsp;*(if* features = ["rc"] *is enabled)*
//! - **Collection types**:
//! - BTreeMap\<K, V\>
//! - BTreeSet\<T\>
+11 -8
View File
@@ -75,7 +75,7 @@
////////////////////////////////////////////////////////////////////////////////
// Serde types in rustdoc of other crates get linked to here.
#![doc(html_root_url = "https://docs.rs/serde/1.0.87")]
#![doc(html_root_url = "https://docs.rs/serde/1.0.90")]
// Support using Serde without the standard library!
#![cfg_attr(not(feature = "std"), no_std)]
// Unstable functionality only if the user asks for it. For tracking and
@@ -202,17 +202,20 @@ mod lib {
#[cfg(feature = "std")]
pub use std::time::{SystemTime, UNIX_EPOCH};
#[cfg(any(core_duration, feature = "std"))]
pub use self::core::time::Duration;
#[cfg(all(feature = "std", collections_bound))]
pub use std::collections::Bound;
#[cfg(core_reverse)]
pub use self::core::cmp::Reverse;
#[cfg(ops_bound)]
pub use self::core::ops::Bound;
#[cfg(range_inclusive)]
pub use self::core::ops::RangeInclusive;
#[cfg(all(feature = "std", collections_bound))]
pub use std::collections::Bound;
#[cfg(ops_bound)]
pub use self::core::ops::Bound;
#[cfg(any(core_duration, feature = "std"))]
pub use self::core::time::Duration;
}
////////////////////////////////////////////////////////////////////////////////
+1 -1
View File
@@ -2709,7 +2709,7 @@ where
}
Err(Error::custom(format_args!(
"no variant of enum {} not found in flattened data",
"no variant of enum {} found in flattened data",
name
)))
}
+20 -4
View File
@@ -160,10 +160,12 @@ macro_rules! array_impls {
}
}
array_impls!(01 02 03 04 05 06 07 08 09 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32);
array_impls! {
01 02 03 04 05 06 07 08 09 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32
}
////////////////////////////////////////////////////////////////////////////////
@@ -822,3 +824,17 @@ where
self.0.serialize(serializer)
}
}
#[cfg(core_reverse)]
impl<T> Serialize for Reverse<T>
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.0.serialize(serializer)
}
}
+2 -2
View File
@@ -56,13 +56,13 @@
//! - PhantomData\<T\>
//! - **Wrapper types**:
//! - Box\<T\>
//! - Rc\<T\>
//! - Arc\<T\>
//! - Cow\<'a, T\>
//! - Cell\<T\>
//! - RefCell\<T\>
//! - Mutex\<T\>
//! - RwLock\<T\>
//! - Rc\<T\>&emsp;*(if* features = ["rc"] *is enabled)*
//! - Arc\<T\>&emsp;*(if* features = ["rc"] *is enabled)*
//! - **Collection types**:
//! - BTreeMap\<K, V\>
//! - BTreeSet\<T\>
+1 -1
View File
@@ -1,6 +1,6 @@
[package]
name = "serde_derive"
version = "1.0.87" # remember to update html_root_url
version = "1.0.90" # remember to update html_root_url
authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
license = "MIT/Apache-2.0"
description = "Macros 1.1 implementation of #[derive(Serialize, Deserialize)]"
+28 -10
View File
@@ -27,15 +27,16 @@ pub fn expand_derive_deserialize(input: &syn::DeriveInput) -> Result<TokenStream
let (de_impl_generics, _, ty_generics, where_clause) = split_with_de_lifetime(&params);
let body = Stmts(deserialize_body(&cont, &params));
let delife = params.borrowed.de_lifetime();
let serde = cont.attrs.serde_path();
let impl_block = if let Some(remote) = cont.attrs.remote() {
let vis = &input.vis;
let used = pretend::pretend_used(&cont);
quote! {
impl #de_impl_generics #ident #ty_generics #where_clause {
#vis fn deserialize<__D>(__deserializer: __D) -> _serde::export::Result<#remote #ty_generics, __D::Error>
#vis fn deserialize<__D>(__deserializer: __D) -> #serde::export::Result<#remote #ty_generics, __D::Error>
where
__D: _serde::Deserializer<#delife>,
__D: #serde::Deserializer<#delife>,
{
#used
#body
@@ -47,10 +48,10 @@ pub fn expand_derive_deserialize(input: &syn::DeriveInput) -> Result<TokenStream
quote! {
#[automatically_derived]
impl #de_impl_generics _serde::Deserialize<#delife> for #ident #ty_generics #where_clause {
fn deserialize<__D>(__deserializer: __D) -> _serde::export::Result<Self, __D::Error>
impl #de_impl_generics #serde::Deserialize<#delife> for #ident #ty_generics #where_clause {
fn deserialize<__D>(__deserializer: __D) -> #serde::export::Result<Self, __D::Error>
where
__D: _serde::Deserializer<#delife>,
__D: #serde::Deserializer<#delife>,
{
#body
}
@@ -60,7 +61,12 @@ pub fn expand_derive_deserialize(input: &syn::DeriveInput) -> Result<TokenStream
}
};
Ok(dummy::wrap_in_const("DESERIALIZE", ident, impl_block))
Ok(dummy::wrap_in_const(
cont.attrs.custom_serde_path(),
"DESERIALIZE",
ident,
impl_block,
))
}
fn precondition(cx: &Ctxt, cont: &Container) {
@@ -2384,7 +2390,12 @@ fn deserialize_map(
let (wrapper, wrapper_ty) = wrap_deserialize_field_with(params, field.ty, path);
quote!({
#wrapper
try!(_serde::de::MapAccess::next_value::<#wrapper_ty>(&mut __map)).value
match _serde::de::MapAccess::next_value::<#wrapper_ty>(&mut __map) {
_serde::export::Ok(__wrapper) => __wrapper.value,
_serde::export::Err(__err) => {
return _serde::export::Err(__err);
}
}
})
}
};
@@ -2451,7 +2462,7 @@ fn deserialize_map(
let extract_collected = fields_names
.iter()
.filter(|&&(field, _)| field.attrs.flatten())
.filter(|&&(field, _)| field.attrs.flatten() && !field.attrs.skip_deserializing())
.map(|&(field, ref name)| {
let field_ty = field.ty;
let func = match field.attrs.deserialize_with() {
@@ -2471,7 +2482,9 @@ fn deserialize_map(
let collected_deny_unknown_fields = if cattrs.has_flatten() && cattrs.deny_unknown_fields() {
Some(quote! {
if let _serde::export::Some(_serde::export::Some((__key, _))) = __collect.into_iter().filter(|x| x.is_some()).next() {
if let _serde::export::Some(_serde::export::Some((__key, _))) =
__collect.into_iter().filter(_serde::export::Option::is_some).next()
{
if let _serde::export::Some(__key) = __key.as_str() {
return _serde::export::Err(
_serde::de::Error::custom(format_args!("unknown field `{}`", &__key)));
@@ -2615,7 +2628,12 @@ fn deserialize_map_in_place(
let (wrapper, wrapper_ty) = wrap_deserialize_field_with(params, field.ty, path);
quote!({
#wrapper
self.place.#member = try!(_serde::de::MapAccess::next_value::<#wrapper_ty>(&mut __map)).value
self.place.#member = match _serde::de::MapAccess::next_value::<#wrapper_ty>(&mut __map) {
_serde::export::Ok(__wrapper) => __wrapper.value,
_serde::export::Err(__err) => {
return _serde::export::Err(__err);
}
};
})
}
};
+19 -4
View File
@@ -1,8 +1,14 @@
use proc_macro2::{Ident, Span, TokenStream};
use syn;
use try;
pub fn wrap_in_const(trait_: &str, ty: &Ident, code: TokenStream) -> TokenStream {
pub fn wrap_in_const(
serde_path: Option<&syn::Path>,
trait_: &str,
ty: &Ident,
code: TokenStream,
) -> TokenStream {
let try_replacement = try::replacement();
let dummy_const = Ident::new(
@@ -10,13 +16,22 @@ pub fn wrap_in_const(trait_: &str, ty: &Ident, code: TokenStream) -> TokenStream
Span::call_site(),
);
quote! {
#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
const #dummy_const: () = {
let use_serde = match serde_path {
Some(path) => quote! {
use #path as _serde;
},
None => quote! {
#[allow(unknown_lints)]
#[cfg_attr(feature = "cargo-clippy", allow(useless_attribute))]
#[allow(rust_2018_idioms)]
extern crate serde as _serde;
},
};
quote! {
#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
const #dummy_const: () = {
#use_serde
#try_replacement
#code
};
+21
View File
@@ -1,6 +1,7 @@
use internals::Ctxt;
use proc_macro2::{Group, Span, TokenStream, TokenTree};
use quote::ToTokens;
use std::borrow::Cow;
use std::collections::BTreeSet;
use std::str::FromStr;
use syn;
@@ -218,6 +219,7 @@ pub struct Container {
remote: Option<syn::Path>,
identifier: Identifier,
has_flatten: bool,
serde_path: Option<syn::Path>,
}
/// Styles of representing an enum.
@@ -298,6 +300,7 @@ impl Container {
let mut remote = Attr::none(cx, "remote");
let mut field_identifier = BoolAttr::none(cx, "field_identifier");
let mut variant_identifier = BoolAttr::none(cx, "variant_identifier");
let mut serde_path = Attr::none(cx, "crate");
for meta_items in item.attrs.iter().filter_map(get_serde_meta_items) {
for meta_item in meta_items {
@@ -582,6 +585,13 @@ impl Container {
variant_identifier.set_true(word);
}
// Parse `#[serde(crate = "foo")]`
Meta(NameValue(ref m)) if m.ident == "crate" => {
if let Ok(path) = parse_lit_into_path(cx, &m.ident, &m.lit) {
serde_path.set(&m.ident, path)
}
}
Meta(ref meta_item) => {
cx.error_spanned_by(
meta_item.name(),
@@ -613,6 +623,7 @@ impl Container {
remote: remote.get(),
identifier: decide_identifier(cx, item, field_identifier, variant_identifier),
has_flatten: false,
serde_path: serde_path.get(),
}
}
@@ -671,6 +682,16 @@ impl Container {
pub fn mark_has_flatten(&mut self) {
self.has_flatten = true;
}
pub fn custom_serde_path(&self) -> Option<&syn::Path> {
self.serde_path.as_ref()
}
pub fn serde_path(&self) -> Cow<syn::Path> {
self.custom_serde_path()
.map(Cow::Borrowed)
.unwrap_or_else(|| Cow::Owned(parse_quote!(_serde)))
}
}
fn decide_tag(
-19
View File
@@ -76,25 +76,6 @@ fn check_flatten_field(cx: &Ctxt, style: Style, field: &Field) {
}
_ => {}
}
if field.attrs.skip_serializing() {
cx.error_spanned_by(
field.original,
"#[serde(flatten)] can not be combined with \
#[serde(skip_serializing)]",
);
} else if field.attrs.skip_serializing_if().is_some() {
cx.error_spanned_by(
field.original,
"#[serde(flatten)] can not be combined with \
#[serde(skip_serializing_if = \"...\")]",
);
} else if field.attrs.skip_deserializing() {
cx.error_spanned_by(
field.original,
"#[serde(flatten)] can not be combined with \
#[serde(skip_deserializing)]",
);
}
}
/// The `other` attribute must be used at most once and it must be the last
+2 -2
View File
@@ -13,14 +13,14 @@
//!
//! [https://serde.rs/derive.html]: https://serde.rs/derive.html
#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.87")]
#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.90")]
#![cfg_attr(feature = "cargo-clippy", allow(renamed_and_removed_lints))]
#![cfg_attr(feature = "cargo-clippy", deny(clippy, clippy_pedantic))]
// Ignored clippy lints
#![cfg_attr(
feature = "cargo-clippy",
allow(
cyclomatic_complexity,
cognitive_complexity,
enum_variant_names,
needless_pass_by_value,
redundant_field_names,
+12 -6
View File
@@ -22,15 +22,16 @@ pub fn expand_derive_serialize(input: &syn::DeriveInput) -> Result<TokenStream,
let params = Parameters::new(&cont);
let (impl_generics, ty_generics, where_clause) = params.generics.split_for_impl();
let body = Stmts(serialize_body(&cont, &params));
let serde = cont.attrs.serde_path();
let impl_block = if let Some(remote) = cont.attrs.remote() {
let vis = &input.vis;
let used = pretend::pretend_used(&cont);
quote! {
impl #impl_generics #ident #ty_generics #where_clause {
#vis fn serialize<__S>(__self: &#remote #ty_generics, __serializer: __S) -> _serde::export::Result<__S::Ok, __S::Error>
#vis fn serialize<__S>(__self: &#remote #ty_generics, __serializer: __S) -> #serde::export::Result<__S::Ok, __S::Error>
where
__S: _serde::Serializer,
__S: #serde::Serializer,
{
#used
#body
@@ -40,10 +41,10 @@ pub fn expand_derive_serialize(input: &syn::DeriveInput) -> Result<TokenStream,
} else {
quote! {
#[automatically_derived]
impl #impl_generics _serde::Serialize for #ident #ty_generics #where_clause {
fn serialize<__S>(&self, __serializer: __S) -> _serde::export::Result<__S::Ok, __S::Error>
impl #impl_generics #serde::Serialize for #ident #ty_generics #where_clause {
fn serialize<__S>(&self, __serializer: __S) -> #serde::export::Result<__S::Ok, __S::Error>
where
__S: _serde::Serializer,
__S: #serde::Serializer,
{
#body
}
@@ -51,7 +52,12 @@ pub fn expand_derive_serialize(input: &syn::DeriveInput) -> Result<TokenStream,
}
};
Ok(dummy::wrap_in_const("SERIALIZE", ident, impl_block))
Ok(dummy::wrap_in_const(
cont.attrs.custom_serde_path(),
"SERIALIZE",
ident,
impl_block,
))
}
fn precondition(cx: &Ctxt, cont: &Container) {
+1 -1
View File
@@ -3,7 +3,7 @@
#![cfg_attr(
feature = "cargo-clippy",
allow(
cyclomatic_complexity,
cognitive_complexity,
redundant_field_names,
trivially_copy_pass_by_ref
)
+1 -1
View File
@@ -1,6 +1,6 @@
[package]
name = "serde_test"
version = "1.0.87" # remember to update html_root_url
version = "1.0.90" # remember to update html_root_url
authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
license = "MIT/Apache-2.0"
description = "Token De/Serializer for testing De/Serialize implementations"
+1 -1
View File
@@ -144,7 +144,7 @@
//! # }
//! ```
#![doc(html_root_url = "https://docs.rs/serde_test/1.0.87")]
#![doc(html_root_url = "https://docs.rs/serde_test/1.0.90")]
#![cfg_attr(feature = "cargo-clippy", allow(renamed_and_removed_lints))]
#![cfg_attr(feature = "cargo-clippy", deny(clippy, clippy_pedantic))]
// Ignored clippy lints
+18
View File
@@ -0,0 +1,18 @@
#### To run unit tests
```sh
cargo test
```
#### To run ui tests
```sh
(cd deps && cargo clean && cargo update && cargo build)
cargo test --features compiletest
```
#### To update goldens after running ui tests
```sh
tests/ui/update-references.sh
```
+1
View File
@@ -15,6 +15,7 @@ fn ui() {
--extern serde_derive \
",
)),
build_base: std::path::PathBuf::from("../target/ui"),
..Default::default()
});
}
+27 -1
View File
@@ -265,7 +265,7 @@ fn test_gen() {
#[cfg(feature = "unstable")]
#[derive(Serialize, Deserialize)]
struct NonAsciiIdents {
σ: f64,
σ: f64,
}
#[derive(Serialize, Deserialize)]
@@ -522,6 +522,13 @@ fn test_gen() {
}
assert::<FlattenWith>();
#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
struct FlattenDenyUnknown<T> {
#[serde(flatten)]
t: T,
}
#[derive(Serialize, Deserialize)]
struct StaticStrStruct<'a> {
a: &'a str,
@@ -665,6 +672,25 @@ fn test_gen() {
ty: &'a str,
id: String,
}
#[derive(Serialize, Deserialize)]
struct FlattenSkipSerializing<T> {
#[serde(flatten, skip_serializing)]
#[allow(dead_code)]
flat: T,
}
#[derive(Serialize, Deserialize)]
struct FlattenSkipSerializingIf<T> {
#[serde(flatten, skip_serializing_if = "StdOption::is_none")]
flat: StdOption<T>,
}
#[derive(Serialize, Deserialize)]
struct FlattenSkipDeserializing<T> {
#[serde(flatten, skip_deserializing)]
flat: T,
}
}
//////////////////////////////////////////////////////////////////////////
+40
View File
@@ -0,0 +1,40 @@
#[test]
fn test_gen_custom_serde() {
#[derive(serde::Serialize, serde::Deserialize)]
#[serde(crate = "fake_serde")]
struct Foo;
// Would be overlapping if serde::Serialize were implemented
impl AssertNotSerdeSerialize for Foo {}
// Would be overlapping if serde::Deserialize were implemented
impl<'a> AssertNotSerdeDeserialize<'a> for Foo {}
fake_serde::assert::<Foo>();
}
mod fake_serde {
pub use serde::*;
pub fn assert<T>()
where
T: Serialize,
T: for<'a> Deserialize<'a>,
{
}
pub trait Serialize {
fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>;
}
pub trait Deserialize<'a>: Sized {
fn deserialize<D: Deserializer<'a>>(deserializer: D) -> Result<Self, D::Error>;
}
}
trait AssertNotSerdeSerialize {}
impl<T: serde::Serialize> AssertNotSerdeSerialize for T {}
trait AssertNotSerdeDeserialize<'a> {}
impl<'a, T: serde::Deserialize<'a>> AssertNotSerdeDeserialize<'a> for T {}
@@ -1,14 +0,0 @@
use serde_derive::Deserialize;
#[derive(Deserialize)]
struct Foo {
#[serde(flatten, skip_deserializing)]
other: Other,
}
#[derive(Deserialize)]
struct Other {
x: u32,
}
fn main() {}
@@ -1,9 +0,0 @@
error: #[serde(flatten)] can not be combined with #[serde(skip_deserializing)]
--> $DIR/flatten-skip-deserializing.rs:5:5
|
5 | / #[serde(flatten, skip_deserializing)]
6 | | other: Other,
| |________________^
error: aborting due to previous error
@@ -1,14 +0,0 @@
use serde_derive::Serialize;
#[derive(Serialize)]
struct Foo {
#[serde(flatten, skip_serializing_if = "Option::is_none")]
other: Option<Other>,
}
#[derive(Serialize)]
struct Other {
x: u32,
}
fn main() {}
@@ -1,9 +0,0 @@
error: #[serde(flatten)] can not be combined with #[serde(skip_serializing_if = "...")]
--> $DIR/flatten-skip-serializing-if.rs:5:5
|
5 | / #[serde(flatten, skip_serializing_if = "Option::is_none")]
6 | | other: Option<Other>,
| |________________________^
error: aborting due to previous error
@@ -1,14 +0,0 @@
use serde_derive::Serialize;
#[derive(Serialize)]
struct Foo {
#[serde(flatten, skip_serializing)]
other: Other,
}
#[derive(Serialize)]
struct Other {
x: u32,
}
fn main() {}
@@ -1,9 +0,0 @@
error: #[serde(flatten)] can not be combined with #[serde(skip_serializing)]
--> $DIR/flatten-skip-serializing.rs:5:5
|
5 | / #[serde(flatten, skip_serializing)]
6 | | other: Other,
| |________________^
error: aborting due to previous error
+13 -25
View File
@@ -19,32 +19,20 @@
# If you find yourself manually editing a foo.stderr file, you're
# doing it wrong.
if [[ "$1" == "--help" || "$1" == "-h" || "$1" == "" || "$2" == "" ]]; then
echo "usage: $0 <build-directory> <relative-path-to-rs-files>"
echo ""
echo "For example:"
echo " $0 ../../../build/x86_64-apple-darwin/test/ui *.rs */*.rs"
fi
cd "$(dirname "${BASH_SOURCE[0]}")"
BUILD_DIR="../../../target/ui"
MYDIR=$(dirname $0)
BUILD_DIR="$1"
shift
while [[ "$1" != "" ]]; do
STDERR_NAME="${1/%.rs/.stderr}"
STDOUT_NAME="${1/%.rs/.stdout}"
shift
if [ -f $BUILD_DIR/$STDOUT_NAME ] && \
! (diff $BUILD_DIR/$STDOUT_NAME $MYDIR/$STDOUT_NAME >& /dev/null); then
echo updating $MYDIR/$STDOUT_NAME
cp $BUILD_DIR/$STDOUT_NAME $MYDIR/$STDOUT_NAME
for testcase in */*.rs; do
STDERR_NAME="${testcase/%.rs/.stderr}"
STDOUT_NAME="${testcase/%.rs/.stdout}"
if [ -f "$BUILD_DIR/$STDOUT_NAME" ] && \
! (diff "$BUILD_DIR/$STDOUT_NAME" "$STDOUT_NAME" >& /dev/null); then
echo "updating $STDOUT_NAME"
cp "$BUILD_DIR/$STDOUT_NAME" "$STDOUT_NAME"
fi
if [ -f $BUILD_DIR/$STDERR_NAME ] && \
! (diff $BUILD_DIR/$STDERR_NAME $MYDIR/$STDERR_NAME >& /dev/null); then
echo updating $MYDIR/$STDERR_NAME
cp $BUILD_DIR/$STDERR_NAME $MYDIR/$STDERR_NAME
if [ -f "$BUILD_DIR/$STDERR_NAME" ] && \
! (diff "$BUILD_DIR/$STDERR_NAME" "$STDERR_NAME" >& /dev/null); then
echo "updating $STDERR_NAME"
cp "$BUILD_DIR/$STDERR_NAME" "$STDERR_NAME"
fi
done