Merge #335

335: 0.4: Expand glob imports r=taiki-e a=taiki-e

Backport of ab1f198.

0.4.28 and older versions are failed to compile with syn 1.0.84 and later.

```
error[E0659]: `parse_quote_spanned` is ambiguous
   --> pin-project-internal/src/pin_project/derive.rs:865:67
    |
865 |                 proj_generics.make_where_clause().predicates.push(parse_quote_spanned! { span =>
    |                                                                   ^^^^^^^^^^^^^^^^^^^ ambiguous name
    |
    = note: ambiguous because of a conflict between a `macro_rules` name and a non-`macro_rules` name from another module
note: `parse_quote_spanned` could refer to the macro defined here
   --> pin-project-internal/src/utils.rs:23:1
    |
23  | / macro_rules! parse_quote_spanned {
24  | |     ($span:expr => $($tt:tt)*) => {
25  | |         syn::parse2(quote::quote_spanned!($span => $($tt)*)).unwrap_or_else(|e| panic!("{}", e))
26  | |     };
27  | | }
    | |_^
note: `parse_quote_spanned` could also refer to the macro imported here
   --> pin-project-internal/src/pin_project/derive.rs:7:5
    |
7   |     *,
    |     ^
    = help: use `self::parse_quote_spanned` to refer to this macro unambiguously
```

See ddcd880 for v1.0.

Co-authored-by: Taiki Endo <te316e89@gmail.com>

Author: bors[bot]

.github/CODEOWNERS

@@ -37,7 +37,7 @@ jobs:
       - uses: taiki-e/github-actions/install-rust@main
         with:
           toolchain: ${{ matrix.rust }}
-          component: rustfmt
+          component: rustfmt,rust-src
       - name: Pre Cache cargo-expand
         run: |
           mkdir -p .github/caching

.github/workflows/ci.yml

@@ -4,13 +4,21 @@ All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](https://semver.org).
 
+<!--
+NOTE: In this file, do not use the hard wrap in the middle of a sentence for compatibility with GitHub comment style markdown rendering.
+-->
+
 ## [Unreleased]
 
+## [0.4.29] - 2021-12-26
+
+- [Fix compile error with `syn` 1.0.84 and later.](https://github.com/taiki-e/pin-project/pull/335)
+
 ## [0.4.28] - 2021-03-28
 
 - [Fix `unused_must_use` warning on unused borrows, which will be added to rustc in the future.](https://github.com/taiki-e/pin-project/pull/322) See [#322](https://github.com/taiki-e/pin-project/pull/322) for more details.
 
-  (Note: 1.0 does not have this problem.)
+  (NOTE: 1.0 does not have this problem.)
 
 ## [0.4.27] - 2020-10-11
 
@@ -24,13 +32,13 @@ This project adheres to [Semantic Versioning](https://semver.org).
 
 - [Suppress `drop_bounds` lint, which will be added to rustc in the future.](https://github.com/taiki-e/pin-project/pull/273) See [#272](https://github.com/taiki-e/pin-project/issues/272) for more details.
 
-  (Note: 1.0.0-alpha.1 already contains this change.)
+  (NOTE: 1.0.0-alpha.1 already contains this change.)
 
 ## [0.4.24] - 2020-09-26
 
 - [Fix compatibility of generated code with `forbid(future_incompatible)`.](https://github.com/taiki-e/pin-project/pull/282)
 
-  Note: This does not guarantee compatibility with `forbid(future_incompatible)` in the future.
+  NOTE: This does not guarantee compatibility with `forbid(future_incompatible)` in the future.
   If rustc adds a new lint, we may not be able to keep this.
 
 ## [0.4.23] - 2020-07-27
@@ -161,7 +169,7 @@ This project adheres to [Semantic Versioning](https://semver.org).
   }
   ```
 
-  *[Note: This raises the minimum supported Rust version of this crate from Rust 1.33 to Rust 1.34.](https://github.com/taiki-e/pin-project/pull/219#pullrequestreview-408644187)*
+  *[NOTE: This raises the minimum supported Rust version of this crate from Rust 1.33 to Rust 1.34.](https://github.com/taiki-e/pin-project/pull/219#pullrequestreview-408644187)*
 
 - [Fix an issue where duplicate `#[project]` attributes were ignored.](https://github.com/taiki-e/pin-project/pull/218)
 
@@ -195,7 +203,7 @@ This project adheres to [Semantic Versioning](https://semver.org).
 
 ## [0.4.11] - 2020-05-07
 
-**Note: This release has been yanked.** See [#206](https://github.com/taiki-e/pin-project/issues/206) for details.
+**NOTE:** This release has been yanked. See [#206](https://github.com/taiki-e/pin-project/issues/206) for details.
 
 - [Fix an issue that `#[project]` on non-statement expression does not work without unstable features.](https://github.com/taiki-e/pin-project/pull/197)
 
@@ -249,7 +257,7 @@ This project adheres to [Semantic Versioning](https://semver.org).
 
 ## [0.4.3] - 2019-10-15
 
-**Note: This release has been yanked.** See [#148](https://github.com/taiki-e/pin-project/pull/148) for details.
+**NOTE:** This release has been yanked. See [#148](https://github.com/taiki-e/pin-project/pull/148) for details.
 
 - [`#[pin_project]` can now interoperate with `#[cfg_attr()]`.](https://github.com/taiki-e/pin-project/pull/135)
 
@@ -261,19 +269,19 @@ This project adheres to [Semantic Versioning](https://semver.org).
 
 ## [0.4.2] - 2019-09-29
 
-**Note: This release has been yanked.** See [#148](https://github.com/taiki-e/pin-project/pull/148) for details.
+**NOTE:** This release has been yanked. See [#148](https://github.com/taiki-e/pin-project/pull/148) for details.
 
 - [Fix support for DSTs(Dynamically Sized Types).](https://github.com/taiki-e/pin-project/pull/113)
 
 ## [0.4.1] - 2019-09-26
 
-**Note: This release has been yanked.** See [#148](https://github.com/taiki-e/pin-project/pull/148) for details.
+**NOTE:** This release has been yanked. See [#148](https://github.com/taiki-e/pin-project/pull/148) for details.
 
 - [Fix an issue that caused an error when using `#[pin_project]` on a type that has `#[pin]` + `!Unpin` field with no generics or lifetime.](https://github.com/taiki-e/pin-project/pull/111)
 
 ## [0.4.0] - 2019-09-25
 
-**Note: This release has been yanked.** See [#148](https://github.com/taiki-e/pin-project/pull/148) for details.
+**NOTE:** This release has been yanked. See [#148](https://github.com/taiki-e/pin-project/pull/148) for details.
 
 - [**Pin projection has become a safe operation.**](https://github.com/taiki-e/pin-project/pull/18) In the absence of other unsafe code that you write, it is impossible to cause undefined behavior.
 
@@ -402,7 +410,7 @@ Changes since the 0.4.0-beta.1 release:
 
 - `Unpin` impls must be specified with an impl of `UnsafeUnpin`, instead of implementing the normal `Unpin` trait.
 
-- Made `#[project]` attribute disabled by default.
+- Make `#[project]` attribute disabled by default.
 
 See also [tracking issue for 0.4 release](https://github.com/taiki-e/pin-project/issues/21).
 
@@ -416,7 +424,7 @@ See also [tracking issue for 0.4 release](https://github.com/taiki-e/pin-project
 
 ## [0.3.3] - 2019-07-15
 
-**Note: This release has been yanked.** See [#16](https://github.com/taiki-e/pin-project/issues/16) for details.
+**NOTE:** This release has been yanked. See [#16](https://github.com/taiki-e/pin-project/issues/16) for details.
 
 - Diagnostic improvements.
 
@@ -490,11 +498,12 @@ See also [tracking issue for 0.4 release](https://github.com/taiki-e/pin-project
 
 ## [0.1.0] - 2019-01-08
 
-**Note: This release has been yanked.**
+**NOTE:** This release has been yanked.
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/pin-project/compare/v0.4.28...HEAD
+[Unreleased]: https://github.com/taiki-e/pin-project/compare/v0.4.29...v0.4
+[0.4.29]: https://github.com/taiki-e/pin-project/compare/v0.4.28...v0.4.29
 [0.4.28]: https://github.com/taiki-e/pin-project/compare/v0.4.27...v0.4.28
 [0.4.27]: https://github.com/taiki-e/pin-project/compare/v0.4.26...v0.4.27
 [0.4.26]: https://github.com/taiki-e/pin-project/compare/v0.4.25...v0.4.26

CHANGELOG.md

@@ -1,11 +1,10 @@
 [package]
 name = "pin-project"
-version = "0.4.28"
-authors = ["Taiki Endo <te316e89@gmail.com>"]
+version = "0.4.29"
 edition = "2018"
+rust-version = "1.34"
 license = "Apache-2.0 OR MIT"
 repository = "https://github.com/taiki-e/pin-project"
-documentation = "https://docs.rs/pin-project"
 keywords = ["pin", "macros", "attribute"]
 categories = ["no-std", "rust-patterns"]
 exclude = ["/.*", "/ci", "/tools"]
@@ -28,9 +27,13 @@ members = [
 ]
 
 [dependencies]
-pin-project-internal = { version = "=0.4.28", path = "pin-project-internal", default-features = false }
+pin-project-internal = { version = "=0.4.29", path = "pin-project-internal", default-features = false }
 
 [dev-dependencies]
 pin-project-auxiliary-macro = { path = "tests/ui/auxiliary" }
 rustversion = "1.0"
 trybuild = "1.0"
+
+# For test on MSRV.
+ryu = "=1.0.6"
+serde_json = "=1.0.72"

Cargo.toml

@@ -1,11 +1,10 @@
 [package]
 name = "pin-project-internal"
-version = "0.4.28"
-authors = ["Taiki Endo <te316e89@gmail.com>"]
+version = "0.4.29"
 edition = "2018"
+rust-version = "1.34"
 license = "Apache-2.0 OR MIT"
 repository = "https://github.com/taiki-e/pin-project"
-documentation = "https://docs.rs/pin-project-internal"
 keywords = ["pin", "macros", "attribute"]
 categories = ["no-std", "rust-patterns"]
 description = """

pin-project-internal/Cargo.toml

@@ -6,7 +6,7 @@
 ))]
 #![warn(unsafe_code)]
 #![warn(rust_2018_idioms, single_use_lifetimes, unreachable_pub)]
-#![warn(clippy::all, clippy::default_trait_access)]
+#![warn(clippy::default_trait_access, clippy::wildcard_imports)]
 // mem::take and #[non_exhaustive] requires Rust 1.40
 #![allow(clippy::mem_replace_with_default, clippy::manual_non_exhaustive)]
 #![allow(clippy::needless_doctest_main)]

pin-project-internal/src/lib.rs

@@ -2,7 +2,7 @@ use proc_macro2::TokenStream;
 use quote::quote;
 use syn::{
     parse::{Parse, ParseStream},
-    *,
+    Attribute, Result, Token, Visibility,
 };
 
 use super::PIN;

pin-project-internal/src/pin_project/attribute.rs

@@ -2,9 +2,13 @@ use proc_macro2::{Delimiter, Group, Span, TokenStream};
 use quote::{format_ident, quote, quote_spanned, ToTokens};
 use syn::{
     parse::{Parse, ParseStream},
+    parse_quote,
     spanned::Spanned,
+    token,
     visit_mut::VisitMut,
-    *,
+    Attribute, Data, DataEnum, DataStruct, DeriveInput, Error, Field, Fields, FieldsNamed,
+    FieldsUnnamed, Generics, Ident, Index, Lifetime, LifetimeDef, Meta, MetaList, NestedMeta,
+    Result, Token, Type, Variant, Visibility, WhereClause,
 };
 
 use super::PIN;

pin-project-internal/src/pin_project/derive.rs

@@ -1,6 +1,10 @@
 use proc_macro2::TokenStream;
 use quote::{quote, ToTokens};
-use syn::{spanned::Spanned, visit_mut::VisitMut, *};
+use syn::{
+    parse_quote, spanned::Spanned, visit_mut::VisitMut, Error, FnArg, GenericArgument, Ident,
+    ImplItem, ImplItemMethod, ItemImpl, Pat, Path, PathArguments, Result, ReturnType, Token, Type,
+    TypePath, TypeReference,
+};
 
 use crate::utils::{parse_as_empty, prepend_underscore_to_self, ReplaceReceiver, SliceExt};
 

pin-project-internal/src/pinned_drop.rs

@@ -1,8 +1,11 @@
 use proc_macro2::{Span, TokenStream};
 use quote::ToTokens;
 use syn::{
+    parse_quote,
     visit_mut::{self, VisitMut},
-    *,
+    Expr, ExprLet, ExprMatch, Ident, ImplItem, Item, ItemFn, ItemImpl, ItemUse, Lifetime, Local,
+    Pat, PatBox, PatIdent, PatOr, PatPath, PatReference, PatStruct, PatTupleStruct, PatType, Path,
+    PathArguments, PathSegment, Result, Stmt, Type, TypePath, UseTree,
 };
 
 use crate::utils::{

pin-project-internal/src/project.rs

@@ -4,9 +4,13 @@ use proc_macro2::{Group, Spacing, Span, TokenStream, TokenTree};
 use quote::{format_ident, quote, quote_spanned, ToTokens};
 use syn::{
     parse::{Parse, ParseBuffer, ParseStream},
+    parse_quote,
     punctuated::Punctuated,
+    token,
     visit_mut::{self, VisitMut},
-    *,
+    Attribute, ExprPath, ExprStruct, Generics, Ident, Item, Lifetime, LifetimeDef, Macro, PatPath,
+    PatStruct, PatTupleStruct, Path, PathArguments, PredicateType, QSelf, Result, Token, Type,
+    TypeParamBound, TypePath, Variant, Visibility, WherePredicate,
 };
 
 pub(crate) type Variants = Punctuated<Variant, Token![,]>;

pin-project-internal/src/utils.rs

@@ -42,7 +42,7 @@
     attr(deny(warnings, rust_2018_idioms, single_use_lifetimes), allow(dead_code))
 ))]
 #![warn(missing_docs, rust_2018_idioms, single_use_lifetimes, unreachable_pub)]
-#![warn(clippy::all, clippy::default_trait_access)]
+#![warn(clippy::default_trait_access, clippy::wildcard_imports)]
 // mem::take and #[non_exhaustive] requires Rust 1.40
 #![allow(clippy::mem_replace_with_default, clippy::manual_non_exhaustive)]
 #![allow(clippy::needless_doctest_main)]

src/lib.rs

@@ -1,7 +1,6 @@
 [package]
 name = "doctest"
 version = "0.1.0"
-authors = ["Taiki Endo <te316e89@gmail.com>"]
 edition = "2018"
 publish = false
 

tests/doc/Cargo.toml

@@ -3,12 +3,11 @@
     no_crate_inject,
     attr(deny(warnings, rust_2018_idioms, single_use_lifetimes), allow(dead_code))
 ))]
-#![cfg_attr(doctest, feature(external_doc))]
 
-// As `feature(external_doc)` and `doc-comment` do not work with `cfg(test)`,
+// As `doc = include_str!` and `doc-comment` do not work with `cfg(test)`,
 // and `cfg(doctest)` requires 1.40, these tests are split into this crate until
 // MSRV increases.
 
-#[cfg(doctest)]
-#[doc(include = "../../README.md")]
+// https://github.com/rust-lang/rust/issues/82768
+#[cfg_attr(doctest, cfg_attr(doctest, doc = include_str!("../../README.md")))]
 const _README: () = ();

tests/doc/lib.rs

@@ -1,7 +1,6 @@
 [package]
 name = "expandtest"
 version = "0.1.0"
-authors = ["Taiki Endo <te316e89@gmail.com>"]
 edition = "2018"
 publish = false
 

tests/expand/Cargo.toml

@@ -17,7 +17,6 @@
     single_use_lifetimes,
     trivial_casts,
     trivial_numeric_casts,
-    unaligned_references,
     unreachable_pub,
     unused_extern_crates,
     unused_import_braces,

tests/lint.rs

@@ -1,7 +1,6 @@
 [package]
 name = "no-core"
 version = "0.1.0"
-authors = ["Taiki Endo <te316e89@gmail.com>"]
 edition = "2018"
 publish = false
 

tests/no-core/Cargo.toml

@@ -1,7 +1,6 @@
 [package]
 name = "no-std"
 version = "0.1.0"
-authors = ["Taiki Endo <te316e89@gmail.com>"]
 edition = "2018"
 publish = false
 

tests/no-std/Cargo.toml

@@ -1,7 +1,6 @@
 [package]
 name = "rust-2015"
 version = "0.1.0"
-authors = ["Taiki Endo <te316e89@gmail.com>"]
 edition = "2015"
 publish = false
 

tests/rust-2015/Cargo.toml

@@ -1,7 +1,6 @@
 [package]
 name = "pin-project-auxiliary-macro"
 version = "0.0.0"
-authors = ["Taiki Endo <te316e89@gmail.com>"]
 edition = "2018"
 publish = false
 

tests/ui/auxiliary/Cargo.toml

@@ -1,5 +1,5 @@
 error[E0599]: no method named `project` found for struct `Pin<&mut Foo<u8>>` in the current scope
-  --> $DIR/cfg_attr-resolve.rs:10:31
+  --> tests/ui/cfg/cfg_attr-resolve.rs:10:31
    |
 10 |     let _x = Pin::new(&mut x).project(); //~ ERROR E0599
    |                               ^^^^^^^ method not found in `Pin<&mut Foo<u8>>`

tests/ui/cfg/cfg_attr-resolve.stderr

@@ -1,5 +1,5 @@
 error[E0308]: mismatched types
-  --> $DIR/cfg_attr-type-mismatch.rs:19:27
+  --> tests/ui/cfg/cfg_attr-type-mismatch.rs:19:27
    |
 19 |     let _: Pin<&mut u8> = x.inner; //~ ERROR E0308
    |            ------------   ^^^^^^^ expected struct `Pin`, found `&mut u8`
@@ -10,7 +10,7 @@ error[E0308]: mismatched types
            found mutable reference `&mut u8`
 
 error[E0308]: mismatched types
-  --> $DIR/cfg_attr-type-mismatch.rs:23:22
+  --> tests/ui/cfg/cfg_attr-type-mismatch.rs:23:22
    |
 23 |     let _: &mut u8 = x.inner; //~ ERROR E0308
    |            -------   ^^^^^^^