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feat: Add proc macro ABI for rustc 1.63
Fixes https://github.com/rust-lang/rust-analyzer/issues/12489
This bumps the MSRV to 1.61 due to usage of function pointers and `impl Trait` in const functions.
<details>
<summary>Diff from upstream proc_macro as of rust-lang/rust@e45d9973b2665897a768312e971b82cc62633103 (misses lib.rs as it got renamed to mod.rs)</summary>
```diff
diff -u --recursive ../rust/library/proc_macro/src/bridge/client.rs crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/bridge/client.rs
--- ../rust/library/proc_macro/src/bridge/client.rs 2022-06-08 13:14:57.763123238 +0000
+++ crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/bridge/client.rs 2022-06-08 13:33:23.378430287 +0000
`@@` -430,27 +430,27 `@@`
buf
}
-impl Client<crate::TokenStream, crate::TokenStream> {
- pub const fn expand1(f: impl Fn(crate::TokenStream) -> crate::TokenStream + Copy) -> Self {
+impl Client<super::super::TokenStream, super::super::TokenStream> {
+ pub const fn expand1(f: impl Fn(super::super::TokenStream) -> super::super::TokenStream + Copy) -> Self {
Client {
get_handle_counters: HandleCounters::get,
run: super::selfless_reify::reify_to_extern_c_fn_hrt_bridge(move |bridge| {
- run_client(bridge, |input| f(crate::TokenStream(input)).0)
+ run_client(bridge, |input| f(super::super::TokenStream(input)).0)
}),
_marker: PhantomData,
}
}
}
-impl Client<(crate::TokenStream, crate::TokenStream), crate::TokenStream> {
+impl Client<(super::super::TokenStream, super::super::TokenStream), super::super::TokenStream> {
pub const fn expand2(
- f: impl Fn(crate::TokenStream, crate::TokenStream) -> crate::TokenStream + Copy,
+ f: impl Fn(super::super::TokenStream, super::super::TokenStream) -> super::super::TokenStream + Copy,
) -> Self {
Client {
get_handle_counters: HandleCounters::get,
run: super::selfless_reify::reify_to_extern_c_fn_hrt_bridge(move |bridge| {
run_client(bridge, |(input, input2)| {
- f(crate::TokenStream(input), crate::TokenStream(input2)).0
+ f(super::super::TokenStream(input), super::super::TokenStream(input2)).0
})
}),
_marker: PhantomData,
`@@` -464,17 +464,17 `@@`
CustomDerive {
trait_name: &'static str,
attributes: &'static [&'static str],
- client: Client<crate::TokenStream, crate::TokenStream>,
+ client: Client<super::super::TokenStream, super::super::TokenStream>,
},
Attr {
name: &'static str,
- client: Client<(crate::TokenStream, crate::TokenStream), crate::TokenStream>,
+ client: Client<(super::super::TokenStream, super::super::TokenStream), super::super::TokenStream>,
},
Bang {
name: &'static str,
- client: Client<crate::TokenStream, crate::TokenStream>,
+ client: Client<super::super::TokenStream, super::super::TokenStream>,
},
}
`@@` -490,21 +490,21 `@@`
pub const fn custom_derive(
trait_name: &'static str,
attributes: &'static [&'static str],
- expand: impl Fn(crate::TokenStream) -> crate::TokenStream + Copy,
+ expand: impl Fn(super::super::TokenStream) -> super::super::TokenStream + Copy,
) -> Self {
ProcMacro::CustomDerive { trait_name, attributes, client: Client::expand1(expand) }
}
pub const fn attr(
name: &'static str,
- expand: impl Fn(crate::TokenStream, crate::TokenStream) -> crate::TokenStream + Copy,
+ expand: impl Fn(super::super::TokenStream, super::super::TokenStream) -> super::super::TokenStream + Copy,
) -> Self {
ProcMacro::Attr { name, client: Client::expand2(expand) }
}
pub const fn bang(
name: &'static str,
- expand: impl Fn(crate::TokenStream) -> crate::TokenStream + Copy,
+ expand: impl Fn(super::super::TokenStream) -> super::super::TokenStream + Copy,
) -> Self {
ProcMacro::Bang { name, client: Client::expand1(expand) }
}
diff -u --recursive ../rust/library/proc_macro/src/bridge/mod.rs crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/bridge/mod.rs
--- ../rust/library/proc_macro/src/bridge/mod.rs 2022-06-08 13:14:57.763123238 +0000
+++ crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/bridge/mod.rs 2022-06-08 13:33:39.694243060 +0000
`@@` -8,7 +8,7 `@@`
#![deny(unsafe_code)]
-use crate::{Delimiter, Level, LineColumn, Spacing};
+pub use super::{Delimiter, Level, LineColumn, Spacing};
use std::fmt;
use std::hash::Hash;
use std::marker;
diff '--color=always' -u --recursive ../rust/library/proc_macro/src/bridge/server.rs crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/bridge/server.rs
--- ../rust/library/proc_macro/src/bridge/server.rs 2022-06-08 13:14:57.763123238 +0000
+++ crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/bridge/server.rs 2022-06-08 13:33:54.306075391 +0000
`@@` -274,7 +274,7 `@@`
Result::decode(&mut &buf[..], &mut dispatcher.handle_store)
}
-impl client::Client<crate::TokenStream, crate::TokenStream> {
+impl client::Client<super::super::TokenStream, super::super::TokenStream> {
pub fn run<S: Server>(
&self,
strategy: &impl ExecutionStrategy,
`@@` -295,7 +295,7 `@@`
}
}
-impl client::Client<(crate::TokenStream, crate::TokenStream), crate::TokenStream> {
+impl client::Client<(super::super::TokenStream, super::super::TokenStream), super::super::TokenStream> {
pub fn run<S: Server>(
&self,
strategy: &impl ExecutionStrategy,
diff -u --recursive ../rust/library/proc_macro/src/diagnostic.rs crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/diagnostic.rs
--- ../rust/library/proc_macro/src/diagnostic.rs 2022-05-11 10:07:59.099909725 +0000
+++ crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/diagnostic.rs 2022-06-08 13:35:01.169308145 +0000
`@@` -1,7 +1,6 `@@`
-use crate::Span;
+use super::Span;
/// An enum representing a diagnostic level.
-#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
#[derive(Copy, Clone, Debug)]
#[non_exhaustive]
pub enum Level {
`@@` -16,27 +15,23 `@@`
}
/// Trait implemented by types that can be converted into a set of `Span`s.
-#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub trait MultiSpan {
/// Converts `self` into a `Vec<Span>`.
fn into_spans(self) -> Vec<Span>;
}
-#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
impl MultiSpan for Span {
fn into_spans(self) -> Vec<Span> {
vec![self]
}
}
-#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
impl MultiSpan for Vec<Span> {
fn into_spans(self) -> Vec<Span> {
self
}
}
-#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
impl<'a> MultiSpan for &'a [Span] {
fn into_spans(self) -> Vec<Span> {
self.to_vec()
`@@` -45,7 +40,6 `@@`
/// A structure representing a diagnostic message and associated children
/// messages.
-#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
#[derive(Clone, Debug)]
pub struct Diagnostic {
level: Level,
`@@` -56,7 +50,6 `@@`
macro_rules! diagnostic_child_methods {
($spanned:ident, $regular:ident, $level:expr) => {
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
#[doc = concat!("Adds a new child diagnostics message to `self` with the [`",
stringify!($level), "`] level, and the given `spans` and `message`.")]
pub fn $spanned<S, T>(mut self, spans: S, message: T) -> Diagnostic
`@@` -68,7 +61,6 `@@`
self
}
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
#[doc = concat!("Adds a new child diagnostic message to `self` with the [`",
stringify!($level), "`] level, and the given `message`.")]
pub fn $regular<T: Into<String>>(mut self, message: T) -> Diagnostic {
`@@` -80,10 +72,8 `@@`
/// Iterator over the children diagnostics of a `Diagnostic`.
#[derive(Debug, Clone)]
-#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub struct Children<'a>(std::slice::Iter<'a, Diagnostic>);
-#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
impl<'a> Iterator for Children<'a> {
type Item = &'a Diagnostic;
`@@` -92,17 +82,14 `@@`
}
}
-#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
impl Diagnostic {
/// Creates a new diagnostic with the given `level` and `message`.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn new<T: Into<String>>(level: Level, message: T) -> Diagnostic {
Diagnostic { level, message: message.into(), spans: vec![], children: vec![] }
}
/// Creates a new diagnostic with the given `level` and `message` pointing to
/// the given set of `spans`.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn spanned<S, T>(spans: S, level: Level, message: T) -> Diagnostic
where
S: MultiSpan,
`@@` -117,59 +104,51 `@@`
diagnostic_child_methods!(span_help, help, Level::Help);
/// Returns the diagnostic `level` for `self`.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn level(&self) -> Level {
self.level
}
/// Sets the level in `self` to `level`.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn set_level(&mut self, level: Level) {
self.level = level;
}
/// Returns the message in `self`.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn message(&self) -> &str {
&self.message
}
/// Sets the message in `self` to `message`.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn set_message<T: Into<String>>(&mut self, message: T) {
self.message = message.into();
}
/// Returns the `Span`s in `self`.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn spans(&self) -> &[Span] {
&self.spans
}
/// Sets the `Span`s in `self` to `spans`.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn set_spans<S: MultiSpan>(&mut self, spans: S) {
self.spans = spans.into_spans();
}
/// Returns an iterator over the children diagnostics of `self`.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn children(&self) -> Children<'_> {
Children(self.children.iter())
}
/// Emit the diagnostic.
- #[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub fn emit(self) {
- fn to_internal(spans: Vec<Span>) -> crate::bridge::client::MultiSpan {
- let mut multi_span = crate::bridge::client::MultiSpan::new();
+ fn to_internal(spans: Vec<Span>) -> super::bridge::client::MultiSpan {
+ let mut multi_span = super::bridge::client::MultiSpan::new();
for span in spans {
multi_span.push(span.0);
}
multi_span
}
- let mut diag = crate::bridge::client::Diagnostic::new(
+ let mut diag = super::bridge::client::Diagnostic::new(
self.level,
&self.message[..],
to_internal(self.spans),
Only in ../rust/library/proc_macro/src/: lib.rs
Only in crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/: mod.rs
diff -u --recursive ../rust/library/proc_macro/src/quote.rs crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/quote.rs
--- ../rust/library/proc_macro/src/quote.rs 2022-05-11 10:22:36.097429479 +0000
+++ crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/quote.rs 2022-06-08 13:35:08.737221303 +0000
`@@` -4,7 +4,7 `@@`
//! This quasiquoter uses macros 2.0 hygiene to reliably access
//! items from `proc_macro`, to build a `proc_macro::TokenStream`.
-use crate::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree};
+use super::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree};
macro_rules! quote_tt {
(($($t:tt)*)) => { Group::new(Delimiter::Parenthesis, quote!($($t)*)) };
`@@` -59,10 +59,9 `@@`
/// This is the actual implementation of the `quote!()` proc macro.
///
/// It is loaded by the compiler in `register_builtin_macros`.
-#[unstable(feature = "proc_macro_quote", issue = "54722")]
pub fn quote(stream: TokenStream) -> TokenStream {
if stream.is_empty() {
- return quote!(crate::TokenStream::new());
+ return quote!(super::TokenStream::new());
}
let proc_macro_crate = quote!(crate);
let mut after_dollar = false;
`@@` -73,7 +72,7 `@@`
after_dollar = false;
match tree {
TokenTree::Ident(_) => {
- return Some(quote!(Into::<crate::TokenStream>::into(
+ return Some(quote!(Into::<super::TokenStream>::into(
Clone::clone(&(@ tree))),));
}
TokenTree::Punct(ref tt) if tt.as_char() == '$' => {}
`@@` -86,33 +85,33 `@@`
}
}
- Some(quote!(crate::TokenStream::from((@ match tree {
- TokenTree::Punct(tt) => quote!(crate::TokenTree::Punct(crate::Punct::new(
+ Some(quote!(super::TokenStream::from((@ match tree {
+ TokenTree::Punct(tt) => quote!(super::TokenTree::Punct(super::Punct::new(
(@ TokenTree::from(Literal::character(tt.as_char()))),
(@ match tt.spacing() {
- Spacing::Alone => quote!(crate::Spacing::Alone),
- Spacing::Joint => quote!(crate::Spacing::Joint),
+ Spacing::Alone => quote!(super::Spacing::Alone),
+ Spacing::Joint => quote!(super::Spacing::Joint),
}),
))),
- TokenTree::Group(tt) => quote!(crate::TokenTree::Group(crate::Group::new(
+ TokenTree::Group(tt) => quote!(super::TokenTree::Group(super::Group::new(
(@ match tt.delimiter() {
- Delimiter::Parenthesis => quote!(crate::Delimiter::Parenthesis),
- Delimiter::Brace => quote!(crate::Delimiter::Brace),
- Delimiter::Bracket => quote!(crate::Delimiter::Bracket),
- Delimiter::None => quote!(crate::Delimiter::None),
+ Delimiter::Parenthesis => quote!(super::Delimiter::Parenthesis),
+ Delimiter::Brace => quote!(super::Delimiter::Brace),
+ Delimiter::Bracket => quote!(super::Delimiter::Bracket),
+ Delimiter::None => quote!(super::Delimiter::None),
}),
(@ quote(tt.stream())),
))),
- TokenTree::Ident(tt) => quote!(crate::TokenTree::Ident(crate::Ident::new(
+ TokenTree::Ident(tt) => quote!(super::TokenTree::Ident(super::Ident::new(
(@ TokenTree::from(Literal::string(&tt.to_string()))),
(@ quote_span(proc_macro_crate.clone(), tt.span())),
))),
- TokenTree::Literal(tt) => quote!(crate::TokenTree::Literal({
+ TokenTree::Literal(tt) => quote!(super::TokenTree::Literal({
let mut iter = (@ TokenTree::from(Literal::string(&tt.to_string())))
- .parse::<crate::TokenStream>()
+ .parse::<super::TokenStream>()
.unwrap()
.into_iter();
- if let (Some(crate::TokenTree::Literal(mut lit)), None) =
+ if let (Some(super::TokenTree::Literal(mut lit)), None) =
(iter.next(), iter.next())
{
lit.set_span((@ quote_span(proc_macro_crate.clone(), tt.span())));
`@@` -129,12 +128,11 `@@`
panic!("unexpected trailing `$` in `quote!`");
}
- quote!([(@ tokens)].iter().cloned().collect::<crate::TokenStream>())
+ quote!([(@ tokens)].iter().cloned().collect::<super::TokenStream>())
}
/// Quote a `Span` into a `TokenStream`.
/// This is needed to implement a custom quoter.
-#[unstable(feature = "proc_macro_quote", issue = "54722")]
pub fn quote_span(proc_macro_crate: TokenStream, span: Span) -> TokenStream {
let id = span.save_span();
quote!((@ proc_macro_crate ) ::Span::recover_proc_macro_span((@ TokenTree::from(Literal::usize_unsuffixed(id)))))
```
</details>
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