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Bug 1772068 - Force update paste to 1.0. r=emilio 

Differential Revision: https://phabricator.services.mozilla.com/D147838
This commit is contained in:
Mike Hommey 2022-06-01 10:36:16 +00:00
Родитель 37111304e0
Коммит 9d7c444899
49 изменённых файлов: 1342 добавлений и 1151 удалений
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18
Cargo.lock сгенерированный
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@ -3845,22 +3845,16 @@ dependencies = [
[[package]]
name = "paste"
version = "0.1.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "45ca20c77d80be666aef2b45486da86238fabe33e38306bd3118fe4af33fa880"
version = "0.1.999"
dependencies = [
"paste-impl",
"proc-macro-hack",
"paste 1.0.7",
]
[[package]]
name = "paste-impl"
version = "0.1.18"
name = "paste"
version = "1.0.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d95a7db200b97ef370c8e6de0088252f7e0dfff7d047a28528e47456c0fc98b6"
dependencies = [
"proc-macro-hack",
]
checksum = "0c520e05135d6e763148b6426a837e239041653ba7becd2e538c076c738025fc"
[[package]]
name = "peek-poke"
@ -4341,7 +4335,7 @@ dependencies = [
"lmdb-rkv",
"log",
"ordered-float",
"paste",
"paste 0.1.999",
"serde",
"serde_derive",
"thiserror",

3
Cargo.toml
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@ -123,6 +123,9 @@ tokio-util = { path = "build/rust/tokio-util" }
# Patch env_logger 0.8 to 0.9
env_logger = { path = "build/rust/env_logger" }
# Patch paste 0.1 to 1.0
paste = { path = "build/rust/paste" }
# Patch autocfg to hide rustc output. Workaround for https://github.com/cuviper/autocfg/issues/30
autocfg = { path = "third_party/rust/autocfg" }

11
build/rust/paste/Cargo.toml Normal file
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@ -0,0 +1,11 @@
[package]
name = "paste"
version = "0.1.999"
edition = "2018"
license = "MPL-2.0"
[lib]
path = "lib.rs"
[dependencies]
paste = "1.0"

5
build/rust/paste/lib.rs Normal file
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@ -0,0 +1,5 @@
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
pub use paste::*;

1
third_party/rust/paste-impl/.cargo-checksum.json поставляемый
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@ -1 +0,0 @@
{"files":{"Cargo.toml":"81f9fbb93a68bab36249f394bce4d7efaa551eb3d1697dadc02fd5ede96b31cc","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"7f697f191d6ffb32881a6bcf535e817ebbebaaa11b9aacf4f0b26fd32e2cc201","src/enum_hack.rs":"649ec2dd8b44607ca00daba8b0e3a054b6e8f3d1cb55bacb88b03a5570311e86","src/error.rs":"be08d9d48b4cb9984b5141b12f21c31bd7293942c18b3ce25754723930cf54f5","src/lib.rs":"474883fa7898ace1f4c8d08a250777093656296ceb47924986ba4f62c4761fb7"},"package":"d95a7db200b97ef370c8e6de0088252f7e0dfff7d047a28528e47456c0fc98b6"}

27
third_party/rust/paste-impl/Cargo.toml поставляемый
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@ -1,27 +0,0 @@
# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies
#
# If you believe there's an error in this file please file an
# issue against the rust-lang/cargo repository. If you're
# editing this file be aware that the upstream Cargo.toml
# will likely look very different (and much more reasonable)
[package]
edition = "2018"
name = "paste-impl"
version = "0.1.18"
authors = ["David Tolnay <dtolnay@gmail.com>"]
description = "Implementation detail of the `paste` crate"
license = "MIT OR Apache-2.0"
repository = "https://github.com/dtolnay/paste"
[package.metadata.docs.rs]
targets = ["x86_64-unknown-linux-gnu"]
[lib]
proc-macro = true
[dependencies.proc-macro-hack]
version = "0.5"

201
third_party/rust/paste-impl/LICENSE-APACHE поставляемый
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@ -1,201 +0,0 @@
Apache License
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25
third_party/rust/paste-impl/LICENSE-MIT поставляемый
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@ -1,25 +0,0 @@
Copyright (c) 2018
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

86
third_party/rust/paste-impl/src/enum_hack.rs поставляемый
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@ -1,86 +0,0 @@
use proc_macro::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree};
use std::collections::hash_map::DefaultHasher;
use std::hash::{Hash, Hasher};
use std::iter::FromIterator;
pub fn wrap(output: TokenStream) -> TokenStream {
let mut hasher = DefaultHasher::default();
output.to_string().hash(&mut hasher);
let mangled_name = format!("_paste_{}", hasher.finish());
let ident = Ident::new(&mangled_name, Span::call_site());
// #[derive(paste::EnumHack)]
// enum #ident {
// Value = (stringify! {
// #output
// }, 0).1,
// }
TokenStream::from_iter(vec![
TokenTree::Punct(Punct::new('#', Spacing::Alone)),
TokenTree::Group(Group::new(
Delimiter::Bracket,
TokenStream::from_iter(vec![
TokenTree::Ident(Ident::new("derive", Span::call_site())),
TokenTree::Group(Group::new(
Delimiter::Parenthesis,
TokenStream::from_iter(vec![
TokenTree::Ident(Ident::new("paste", Span::call_site())),
TokenTree::Punct(Punct::new(':', Spacing::Joint)),
TokenTree::Punct(Punct::new(':', Spacing::Alone)),
TokenTree::Ident(Ident::new("EnumHack", Span::call_site())),
]),
)),
]),
)),
TokenTree::Ident(Ident::new("enum", Span::call_site())),
TokenTree::Ident(ident),
TokenTree::Group(Group::new(
Delimiter::Brace,
TokenStream::from_iter(vec![
TokenTree::Ident(Ident::new("Value", Span::call_site())),
TokenTree::Punct(Punct::new('=', Spacing::Alone)),
TokenTree::Group(Group::new(
Delimiter::Parenthesis,
TokenStream::from_iter(vec![
TokenTree::Ident(Ident::new("stringify", Span::call_site())),
TokenTree::Punct(Punct::new('!', Spacing::Alone)),
TokenTree::Group(Group::new(Delimiter::Brace, output)),
TokenTree::Punct(Punct::new(',', Spacing::Alone)),
TokenTree::Literal(Literal::usize_unsuffixed(0)),
]),
)),
TokenTree::Punct(Punct::new('.', Spacing::Alone)),
TokenTree::Literal(Literal::usize_unsuffixed(1)),
TokenTree::Punct(Punct::new(',', Spacing::Alone)),
]),
)),
])
}
pub fn extract(input: TokenStream) -> TokenStream {
let mut tokens = input.into_iter();
let _ = tokens.next().expect("enum");
let _ = tokens.next().expect("#ident");
let mut braces = match tokens.next().expect("{...}") {
TokenTree::Group(group) => group.stream().into_iter(),
_ => unreachable!("{...}"),
};
let _ = braces.next().expect("Value");
let _ = braces.next().expect("=");
let mut parens = match braces.next().expect("(...)") {
TokenTree::Group(group) => group.stream().into_iter(),
_ => unreachable!("(...)"),
};
let _ = parens.next().expect("stringify");
let _ = parens.next().expect("!");
let token_stream = match parens.next().expect("{...}") {
TokenTree::Group(group) => group.stream(),
_ => unreachable!("{...}"),
};
let _ = parens.next().expect(",");
let _ = parens.next().expect("0");
let _ = braces.next().expect(".");
let _ = braces.next().expect("1");
let _ = braces.next().expect(",");
token_stream
}

443
third_party/rust/paste-impl/src/lib.rs поставляемый
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@ -1,443 +0,0 @@
extern crate proc_macro;
mod enum_hack;
mod error;
use crate::error::{Error, Result};
use proc_macro::{
token_stream, Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree,
};
use proc_macro_hack::proc_macro_hack;
use std::iter::{self, FromIterator, Peekable};
use std::panic;
#[proc_macro]
pub fn item(input: TokenStream) -> TokenStream {
expand_paste(input)
}
#[proc_macro]
pub fn item_with_macros(input: TokenStream) -> TokenStream {
enum_hack::wrap(expand_paste(input))
}
#[proc_macro_hack]
pub fn expr(input: TokenStream) -> TokenStream {
TokenStream::from(TokenTree::Group(Group::new(
Delimiter::Brace,
expand_paste(input),
)))
}
#[doc(hidden)]
#[proc_macro_derive(EnumHack)]
pub fn enum_hack(input: TokenStream) -> TokenStream {
enum_hack::extract(input)
}
fn expand_paste(input: TokenStream) -> TokenStream {
let mut contains_paste = false;
match expand(input, &mut contains_paste) {
Ok(expanded) => expanded,
Err(err) => err.to_compile_error(),
}
}
fn expand(input: TokenStream, contains_paste: &mut bool) -> Result<TokenStream> {
let mut expanded = TokenStream::new();
let (mut prev_colon, mut colon) = (false, false);
let mut prev_none_group = None::<Group>;
let mut tokens = input.into_iter().peekable();
loop {
let token = tokens.next();
if let Some(group) = prev_none_group.take() {
if match (&token, tokens.peek()) {
(Some(TokenTree::Punct(fst)), Some(TokenTree::Punct(snd))) => {
fst.as_char() == ':' && snd.as_char() == ':' && fst.spacing() == Spacing::Joint
}
_ => false,
} {
expanded.extend(group.stream());
*contains_paste = true;
} else {
expanded.extend(iter::once(TokenTree::Group(group)));
}
}
match token {
Some(TokenTree::Group(group)) => {
let delimiter = group.delimiter();
let content = group.stream();
let span = group.span();
if delimiter == Delimiter::Bracket && is_paste_operation(&content) {
let segments = parse_bracket_as_segments(content, span)?;
let pasted = paste_segments(span, &segments)?;
expanded.extend(pasted);
*contains_paste = true;
} else if is_none_delimited_flat_group(delimiter, &content) {
expanded.extend(content);
*contains_paste = true;
} else {
let mut group_contains_paste = false;
let nested = expand(content, &mut group_contains_paste)?;
let group = if group_contains_paste {
let mut group = Group::new(delimiter, nested);
group.set_span(span);
*contains_paste = true;
group
} else {
group.clone()
};
if delimiter != Delimiter::None {
expanded.extend(iter::once(TokenTree::Group(group)));
} else if prev_colon {
expanded.extend(group.stream());
*contains_paste = true;
} else {
prev_none_group = Some(group);
}
}
prev_colon = false;
colon = false;
}
Some(other) => {
match &other {
TokenTree::Punct(punct) if punct.as_char() == ':' => {
prev_colon = colon;
colon = punct.spacing() == Spacing::Joint;
}
_ => {
prev_colon = false;
colon = false;
}
}
expanded.extend(iter::once(other));
}
None => return Ok(expanded),
}
}
}
// https://github.com/dtolnay/paste/issues/26
fn is_none_delimited_flat_group(delimiter: Delimiter, input: &TokenStream) -> bool {
if delimiter != Delimiter::None {
return false;
}
#[derive(PartialEq)]
enum State {
Init,
Ident,
Literal,
Apostrophe,
Lifetime,
Colon1,
Colon2,
}
let mut state = State::Init;
for tt in input.clone() {
state = match (state, &tt) {
(State::Init, TokenTree::Ident(_)) => State::Ident,
(State::Init, TokenTree::Literal(_)) => State::Literal,
(State::Init, TokenTree::Punct(punct)) if punct.as_char() == '\'' => State::Apostrophe,
(State::Apostrophe, TokenTree::Ident(_)) => State::Lifetime,
(State::Ident, TokenTree::Punct(punct))
if punct.as_char() == ':' && punct.spacing() == Spacing::Joint =>
{
State::Colon1
}
(State::Colon1, TokenTree::Punct(punct))
if punct.as_char() == ':' && punct.spacing() == Spacing::Alone =>
{
State::Colon2
}
(State::Colon2, TokenTree::Ident(_)) => State::Ident,
_ => return false,
};
}
state == State::Ident || state == State::Literal || state == State::Lifetime
}
struct LitStr {
value: String,
span: Span,
}
struct Colon {
span: Span,
}
enum Segment {
String(String),
Apostrophe(Span),
Env(LitStr),
Modifier(Colon, Ident),
}
fn is_paste_operation(input: &TokenStream) -> bool {
let mut tokens = input.clone().into_iter();
match &tokens.next() {
Some(TokenTree::Punct(punct)) if punct.as_char() == '<' => {}
_ => return false,
}
let mut has_token = false;
loop {
match &tokens.next() {
Some(TokenTree::Punct(punct)) if punct.as_char() == '>' => {
return has_token && tokens.next().is_none();
}
Some(_) => has_token = true,
None => return false,
}
}
}
fn parse_bracket_as_segments(input: TokenStream, scope: Span) -> Result<Vec<Segment>> {
let mut tokens = input.into_iter().peekable();
match &tokens.next() {
Some(TokenTree::Punct(punct)) if punct.as_char() == '<' => {}
Some(wrong) => return Err(Error::new(wrong.span(), "expected `<`")),
None => return Err(Error::new(scope, "expected `[< ... >]`")),
}
let segments = parse_segments(&mut tokens, scope)?;
match &tokens.next() {
Some(TokenTree::Punct(punct)) if punct.as_char() == '>' => {}
Some(wrong) => return Err(Error::new(wrong.span(), "expected `>`")),
None => return Err(Error::new(scope, "expected `[< ... >]`")),
}
match tokens.next() {
Some(unexpected) => Err(Error::new(
unexpected.span(),
"unexpected input, expected `[< ... >]`",
)),
None => Ok(segments),
}
}
fn parse_segments(
tokens: &mut Peekable<token_stream::IntoIter>,
scope: Span,
) -> Result<Vec<Segment>> {
let mut segments = Vec::new();
while match tokens.peek() {
None => false,
Some(TokenTree::Punct(punct)) => punct.as_char() != '>',
Some(_) => true,
} {
match tokens.next().unwrap() {
TokenTree::Ident(ident) => {
let mut fragment = ident.to_string();
if fragment.starts_with("r#") {
fragment = fragment.split_off(2);
}
if fragment == "env"
&& match tokens.peek() {
Some(TokenTree::Punct(punct)) => punct.as_char() == '!',
_ => false,
}
{
tokens.next().unwrap(); // `!`
let expect_group = tokens.next();
let parenthesized = match &expect_group {
Some(TokenTree::Group(group))
if group.delimiter() == Delimiter::Parenthesis =>
{
group
}
Some(wrong) => return Err(Error::new(wrong.span(), "expected `(`")),
None => return Err(Error::new(scope, "expected `(` after `env!`")),
};
let mut inner = parenthesized.stream().into_iter();
let lit = match inner.next() {
Some(TokenTree::Literal(lit)) => lit,
Some(wrong) => {
return Err(Error::new(wrong.span(), "expected string literal"))
}
None => {
return Err(Error::new2(
ident.span(),
parenthesized.span(),
"expected string literal as argument to env! macro",
))
}
};
let lit_string = lit.to_string();
if lit_string.starts_with('"')
&& lit_string.ends_with('"')
&& lit_string.len() >= 2
{
// TODO: maybe handle escape sequences in the string if
// someone has a use case.
segments.push(Segment::Env(LitStr {
value: lit_string[1..lit_string.len() - 1].to_owned(),
span: lit.span(),
}));
} else {
return Err(Error::new(lit.span(), "expected string literal"));
}
if let Some(unexpected) = inner.next() {
return Err(Error::new(
unexpected.span(),
"unexpected token in env! macro",
));
}
} else {
segments.push(Segment::String(fragment));
}
}
TokenTree::Literal(lit) => {
let mut lit_string = lit.to_string();
if lit_string.contains(&['#', '\\', '.', '+'][..]) {
return Err(Error::new(lit.span(), "unsupported literal"));
}
lit_string = lit_string
.replace('"', "")
.replace('\'', "")
.replace('-', "_");
segments.push(Segment::String(lit_string));
}
TokenTree::Punct(punct) => match punct.as_char() {
'_' => segments.push(Segment::String("_".to_owned())),
'\'' => segments.push(Segment::Apostrophe(punct.span())),
':' => {
let colon = Colon { span: punct.span() };
let ident = match tokens.next() {
Some(TokenTree::Ident(ident)) => ident,
wrong => {
let span = wrong.as_ref().map_or(scope, TokenTree::span);
return Err(Error::new(span, "expected identifier after `:`"));
}
};
segments.push(Segment::Modifier(colon, ident));
}
_ => return Err(Error::new(punct.span(), "unexpected punct")),
},
TokenTree::Group(group) => {
if group.delimiter() == Delimiter::None {
let mut inner = group.stream().into_iter().peekable();
let nested = parse_segments(&mut inner, group.span())?;
if let Some(unexpected) = inner.next() {
return Err(Error::new(unexpected.span(), "unexpected token"));
}
segments.extend(nested);
} else {
return Err(Error::new(group.span(), "unexpected token"));
}
}
}
}
Ok(segments)
}
fn paste_segments(span: Span, segments: &[Segment]) -> Result<TokenStream> {
let mut evaluated = Vec::new();
let mut is_lifetime = false;
for segment in segments {
match segment {
Segment::String(segment) => {
evaluated.push(segment.clone());
}
Segment::Apostrophe(span) => {
if is_lifetime {
return Err(Error::new(*span, "unexpected lifetime"));
}
is_lifetime = true;
}
Segment::Env(var) => {
let resolved = match std::env::var(&var.value) {
Ok(resolved) => resolved,
Err(_) => {
return Err(Error::new(
var.span,
&format!("no such env var: {:?}", var.value),
));
}
};
let resolved = resolved.replace('-', "_");
evaluated.push(resolved);
}
Segment::Modifier(colon, ident) => {
let last = match evaluated.pop() {
Some(last) => last,
None => {
return Err(Error::new2(colon.span, ident.span(), "unexpected modifier"))
}
};
match ident.to_string().as_str() {
"lower" => {
evaluated.push(last.to_lowercase());
}
"upper" => {
evaluated.push(last.to_uppercase());
}
"snake" => {
let mut acc = String::new();
let mut prev = '_';
for ch in last.chars() {
if ch.is_uppercase() && prev != '_' {
acc.push('_');
}
acc.push(ch);
prev = ch;
}
evaluated.push(acc.to_lowercase());
}
"camel" => {
let mut acc = String::new();
let mut prev = '_';
for ch in last.chars() {
if ch != '_' {
if prev == '_' {
for chu in ch.to_uppercase() {
acc.push(chu);
}
} else if prev.is_uppercase() {
for chl in ch.to_lowercase() {
acc.push(chl);
}
} else {
acc.push(ch);
}
}
prev = ch;
}
evaluated.push(acc);
}
_ => {
return Err(Error::new2(
colon.span,
ident.span(),
"unsupported modifier",
));
}
}
}
}
}
let pasted = evaluated.into_iter().collect::<String>();
let ident = match panic::catch_unwind(|| Ident::new(&pasted, span)) {
Ok(ident) => TokenTree::Ident(ident),
Err(_) => {
return Err(Error::new(
span,
&format!("`{:?}` is not a valid identifier", pasted),
));
}
};
let tokens = if is_lifetime {
let apostrophe = TokenTree::Punct(Punct::new('\'', Spacing::Joint));
vec![apostrophe, ident]
} else {
vec![ident]
};
Ok(TokenStream::from_iter(tokens))
}

2
third_party/rust/paste/.cargo-checksum.json поставляемый
Просмотреть файл

@ -1 +1 @@
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27
third_party/rust/paste/Cargo.toml поставляемый
Просмотреть файл

@ -3,31 +3,36 @@
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you believe there's an error in this file please file an
# issue against the rust-lang/cargo repository. If you're
# editing this file be aware that the upstream Cargo.toml
# will likely look very different (and much more reasonable)
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2018"
rust-version = "1.31"
name = "paste"
version = "0.1.18"
version = "1.0.7"
authors = ["David Tolnay <dtolnay@gmail.com>"]
description = "Macros for all your token pasting needs"
readme = "README.md"
categories = ["no-std"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/dtolnay/paste"
[package.metadata.docs.rs]
targets = ["x86_64-unknown-linux-gnu"]
[dependencies.paste-impl]
version = "=0.1.18"
[dependencies.proc-macro-hack]
version = "0.5.9"
[lib]
proc-macro = true
[dev-dependencies.paste-test-suite]
version = "0"
[dev-dependencies.rustversion]
version = "1.0"
[dev-dependencies.trybuild]
version = "1.0"
version = "1.0.49"
features = ["diff"]

74
third_party/rust/paste/README.md поставляемый
Просмотреть файл

@ -17,32 +17,29 @@ including using pasted identifiers to define new items.
```toml
[dependencies]
paste = "0.1"
paste = "1.0"
```
This approach works with any stable or nightly Rust compiler 1.30+.
This approach works with any Rust compiler 1.31+.
<br>
## Pasting identifiers
There are two entry points, `paste::expr!` for macros in expression position and
`paste::item!` for macros in item position.
Within either one, identifiers inside `[<`...`>]` are pasted together to form a
single identifier.
Within the `paste!` macro, identifiers inside `[<`...`>]` are pasted together to
form a single identifier.
```rust
// Macro in item position: at module scope or inside of an impl block.
paste::item! {
use paste::paste;
paste! {
// Defines a const called `QRST`.
const [<Q R S T>]: &str = "success!";
}
fn main() {
// Macro in expression position: inside a function body.
assert_eq!(
paste::expr! { [<Q R S T>].len() },
paste! { [<Q R S T>].len() },
8,
);
}
@ -50,34 +47,15 @@ fn main() {
<br>
## More elaborate examples
This program demonstrates how you may want to bundle a paste invocation inside
of a more convenient user-facing macro of your own. Here the `routes!(A, B)`
macro expands to a vector containing `ROUTE_A` and `ROUTE_B`.
```rust
const ROUTE_A: &str = "/a";
const ROUTE_B: &str = "/b";
macro_rules! routes {
($($route:ident),*) => {{
paste::expr! {
vec![$( [<ROUTE_ $route>] ),*]
}
}}
}
fn main() {
let routes = routes!(A, B);
assert_eq!(routes, vec!["/a", "/b"]);
}
```
## More elaborate example
The next example shows a macro that generates accessor methods for some struct
fields.
fields. It demonstrates how you might find it useful to bundle a paste
invocation inside of a macro\_rules macro.
```rust
use paste::paste;
macro_rules! make_a_struct_and_getters {
($name:ident { $($field:ident),* }) => {
// Define a struct. This expands to:
@ -100,7 +78,7 @@ macro_rules! make_a_struct_and_getters {
// pub fn get_b(&self) -> &str { &self.b }
// pub fn get_c(&self) -> &str { &self.c }
// }
paste::item! {
paste! {
impl $name {
$(
pub fn [<get_ $field>](&self) -> &str {
@ -139,6 +117,30 @@ The precise Unicode conversions are as defined by [`str::to_lowercase`] and
<br>
## Pasting documentation strings
Within the `paste!` macro, arguments to a #\[doc ...\] attribute are implicitly
concatenated together to form a coherent documentation string.
```rust
use paste::paste;
macro_rules! method_new {
($ret:ident) => {
paste! {
#[doc = "Create a new `" $ret "` object."]
pub fn new() -> $ret { todo!() }
}
};
}
pub struct Paste {}
method_new!(Paste); // expands to #[doc = "Create a new `Paste` object"]
```
<br>
#### License
<sup>

164
third_party/rust/paste/src/attr.rs поставляемый Normal file
Просмотреть файл

@ -0,0 +1,164 @@
use crate::error::Result;
use crate::segment::{self, Segment};
use proc_macro::{Delimiter, Group, Spacing, Span, TokenStream, TokenTree};
use std::iter;
use std::mem;
use std::str::FromStr;
pub fn expand_attr(
attr: TokenStream,
span: Span,
contains_paste: &mut bool,
) -> Result<TokenStream> {
let mut tokens = attr.clone().into_iter();
let mut leading_colons = 0; // $(::)?
let mut leading_path = 0; // $($ident)::+
let mut token;
let group = loop {
token = tokens.next();
match token {
// colon after `$(:)?`
Some(TokenTree::Punct(ref punct))
if punct.as_char() == ':' && leading_colons < 2 && leading_path == 0 =>
{
leading_colons += 1;
}
// ident after `$(::)? $($ident ::)*`
Some(TokenTree::Ident(_)) if leading_colons != 1 && leading_path % 3 == 0 => {
leading_path += 1;
}
// colon after `$(::)? $($ident ::)* $ident $(:)?`
Some(TokenTree::Punct(ref punct)) if punct.as_char() == ':' && leading_path % 3 > 0 => {
leading_path += 1;
}
// eq+value after `$(::)? $($ident)::+`
Some(TokenTree::Punct(ref punct))
if punct.as_char() == '=' && leading_path % 3 == 1 =>
{
let mut count = 0;
if tokens.inspect(|_| count += 1).all(|tt| is_stringlike(&tt)) && count > 1 {
*contains_paste = true;
let leading = leading_colons + leading_path;
return do_paste_name_value_attr(attr, span, leading);
}
return Ok(attr);
}
// parens after `$(::)? $($ident)::+`
Some(TokenTree::Group(ref group))
if group.delimiter() == Delimiter::Parenthesis && leading_path % 3 == 1 =>
{
break group;
}
// bail out
_ => return Ok(attr),
}
};
// There can't be anything else after the first group in a valid attribute.
if tokens.next().is_some() {
return Ok(attr);
}
let mut group_contains_paste = false;
let mut expanded = TokenStream::new();
let mut nested_attr = TokenStream::new();
for tt in group.stream() {
match &tt {
TokenTree::Punct(punct) if punct.as_char() == ',' => {
expanded.extend(expand_attr(
nested_attr,
group.span(),
&mut group_contains_paste,
)?);
expanded.extend(iter::once(tt));
nested_attr = TokenStream::new();
}
_ => nested_attr.extend(iter::once(tt)),
}
}
if !nested_attr.is_empty() {
expanded.extend(expand_attr(
nested_attr,
group.span(),
&mut group_contains_paste,
)?);
}
if group_contains_paste {
*contains_paste = true;
let mut group = Group::new(Delimiter::Parenthesis, expanded);
group.set_span(span);
Ok(attr
.into_iter()
// Just keep the initial ident in `#[ident(...)]`.
.take(leading_colons + leading_path)
.chain(iter::once(TokenTree::Group(group)))
.collect())
} else {
Ok(attr)
}
}
fn do_paste_name_value_attr(attr: TokenStream, span: Span, leading: usize) -> Result<TokenStream> {
let mut expanded = TokenStream::new();
let mut tokens = attr.into_iter().peekable();
expanded.extend(tokens.by_ref().take(leading + 1)); // `doc =`
let mut segments = segment::parse(&mut tokens)?;
for segment in &mut segments {
if let Segment::String(string) = segment {
if let Some(open_quote) = string.value.find('"') {
if open_quote == 0 {
string.value.truncate(string.value.len() - 1);
string.value.remove(0);
} else {
let begin = open_quote + 1;
let end = string.value.rfind('"').unwrap();
let raw_string = mem::replace(&mut string.value, String::new());
for ch in raw_string[begin..end].chars() {
string.value.extend(ch.escape_default());
}
}
}
}
}
let mut lit = segment::paste(&segments)?;
lit.insert(0, '"');
lit.push('"');
let mut lit = TokenStream::from_str(&lit)
.unwrap()
.into_iter()
.next()
.unwrap();
lit.set_span(span);
expanded.extend(iter::once(lit));
Ok(expanded)
}
fn is_stringlike(token: &TokenTree) -> bool {
match token {
TokenTree::Ident(_) => true,
TokenTree::Literal(literal) => {
let repr = literal.to_string();
!repr.starts_with('b') && !repr.starts_with('\'')
}
TokenTree::Group(group) => {
if group.delimiter() != Delimiter::None {
return false;
}
let mut inner = group.stream().into_iter();
match inner.next() {
Some(first) => inner.next().is_none() && is_stringlike(&first),
None => false,
}
}
TokenTree::Punct(punct) => {
punct.as_char() == '\'' || punct.as_char() == ':' && punct.spacing() == Spacing::Alone
}
}
}

0
third_party/rust/paste-impl/src/error.rs → third_party/rust/paste/src/error.rs поставляемый
Просмотреть файл

364
third_party/rust/paste/src/lib.rs поставляемый
Просмотреть файл

@ -15,29 +15,26 @@
//! This crate provides a flexible way to paste together identifiers in a macro,
//! including using pasted identifiers to define new items.
//!
//! This approach works with any stable or nightly Rust compiler 1.30+.
//! This approach works with any Rust compiler 1.31+.
//!
//! <br>
//!
//! # Pasting identifiers
//!
//! There are two entry points, `paste::expr!` for macros in expression position and
//! `paste::item!` for macros in item position.
//!
//! Within either one, identifiers inside `[<`...`>]` are pasted together to form a
//! single identifier.
//! Within the `paste!` macro, identifiers inside `[<`...`>]` are pasted
//! together to form a single identifier.
//!
//! ```
//! // Macro in item position: at module scope or inside of an impl block.
//! paste::item! {
//! use paste::paste;
//!
//! paste! {
//! // Defines a const called `QRST`.
//! const [<Q R S T>]: &str = "success!";
//! }
//!
//! fn main() {
//! // Macro in expression position: inside a function body.
//! assert_eq!(
//! paste::expr! { [<Q R S T>].len() },
//! paste! { [<Q R S T>].len() },
//! 8,
//! );
//! }
@ -45,34 +42,15 @@
//!
//! <br><br>
//!
//! # More elaborate examples
//! # More elaborate example
//!
//! This program demonstrates how you may want to bundle a paste invocation inside
//! of a more convenient user-facing macro of your own. Here the `routes!(A, B)`
//! macro expands to a vector containing `ROUTE_A` and `ROUTE_B`.
//! The next example shows a macro that generates accessor methods for some
//! struct fields. It demonstrates how you might find it useful to bundle a
//! paste invocation inside of a macro\_rules macro.
//!
//! ```
//! const ROUTE_A: &str = "/a";
//! const ROUTE_B: &str = "/b";
//! use paste::paste;
//!
//! macro_rules! routes {
//! ($($route:ident),*) => {{
//! paste::expr! {
//! vec![$( [<ROUTE_ $route>] ),*]
//! }
//! }}
//! }
//!
//! fn main() {
//! let routes = routes!(A, B);
//! assert_eq!(routes, vec!["/a", "/b"]);
//! }
//! ```
//!
//! The next example shows a macro that generates accessor methods for some struct
//! fields.
//!
//! ```
//! macro_rules! make_a_struct_and_getters {
//! ($name:ident { $($field:ident),* }) => {
//! // Define a struct. This expands to:
@ -95,7 +73,7 @@
//! // pub fn get_b(&self) -> &str { &self.b }
//! // pub fn get_c(&self) -> &str { &self.c }
//! // }
//! paste::item! {
//! paste! {
//! impl $name {
//! $(
//! pub fn [<get_ $field>](&self) -> &str {
@ -134,25 +112,311 @@
//!
//! [`str::to_lowercase`]: https://doc.rust-lang.org/std/primitive.str.html#method.to_lowercase
//! [`str::to_uppercase`]: https://doc.rust-lang.org/std/primitive.str.html#method.to_uppercase
//!
//! <br>
//!
//! # Pasting documentation strings
//!
//! Within the `paste!` macro, arguments to a #\[doc ...\] attribute are
//! implicitly concatenated together to form a coherent documentation string.
//!
//! ```
//! use paste::paste;
//!
//! macro_rules! method_new {
//! ($ret:ident) => {
//! paste! {
//! #[doc = "Create a new `" $ret "` object."]
//! pub fn new() -> $ret { todo!() }
//! }
//! };
//! }
//!
//! pub struct Paste {}
//!
//! method_new!(Paste); // expands to #[doc = "Create a new `Paste` object"]
//! ```
#![no_std]
#![allow(
clippy::doc_markdown,
clippy::match_same_arms,
clippy::module_name_repetitions,
clippy::needless_doctest_main,
clippy::too_many_lines
)]
use proc_macro_hack::proc_macro_hack;
extern crate proc_macro;
/// Paste identifiers within a macro invocation that expands to an expression.
#[proc_macro_hack]
pub use paste_impl::expr;
mod attr;
mod error;
mod segment;
/// Paste identifiers within a macro invocation that expands to one or more
/// items.
///
/// An item is like a struct definition, function, impl block, or anything else
/// that can appear at the top level of a module scope.
pub use paste_impl::item;
use crate::attr::expand_attr;
use crate::error::{Error, Result};
use crate::segment::Segment;
use proc_macro::{Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree};
use std::char;
use std::iter;
use std::panic;
/// Paste identifiers within a macro invocation that expands to one or more
/// macro_rules macros or items containing macros.
pub use paste_impl::item_with_macros;
#[proc_macro]
pub fn paste(input: TokenStream) -> TokenStream {
let mut contains_paste = false;
let flatten_single_interpolation = true;
match expand(input, &mut contains_paste, flatten_single_interpolation) {
Ok(expanded) => expanded,
Err(err) => err.to_compile_error(),
}
}
#[doc(hidden)]
pub use paste_impl::EnumHack;
#[proc_macro]
pub fn item(input: TokenStream) -> TokenStream {
paste(input)
}
#[doc(hidden)]
#[proc_macro]
pub fn expr(input: TokenStream) -> TokenStream {
paste(input)
}
fn expand(
input: TokenStream,
contains_paste: &mut bool,
flatten_single_interpolation: bool,
) -> Result<TokenStream> {
let mut expanded = TokenStream::new();
let mut lookbehind = Lookbehind::Other;
let mut prev_none_group = None::<Group>;
let mut tokens = input.into_iter().peekable();
loop {
let token = tokens.next();
if let Some(group) = prev_none_group.take() {
if match (&token, tokens.peek()) {
(Some(TokenTree::Punct(fst)), Some(TokenTree::Punct(snd))) => {
fst.as_char() == ':' && snd.as_char() == ':' && fst.spacing() == Spacing::Joint
}
_ => false,
} {
expanded.extend(group.stream());
*contains_paste = true;
} else {
expanded.extend(iter::once(TokenTree::Group(group)));
}
}
match token {
Some(TokenTree::Group(group)) => {
let delimiter = group.delimiter();
let content = group.stream();
let span = group.span();
if delimiter == Delimiter::Bracket && is_paste_operation(&content) {
let segments = parse_bracket_as_segments(content, span)?;
let pasted = segment::paste(&segments)?;
let tokens = pasted_to_tokens(pasted, span)?;
expanded.extend(tokens);
*contains_paste = true;
} else if flatten_single_interpolation
&& delimiter == Delimiter::None
&& is_single_interpolation_group(&content)
{
expanded.extend(content);
*contains_paste = true;
} else {
let mut group_contains_paste = false;
let is_attribute = delimiter == Delimiter::Bracket
&& (lookbehind == Lookbehind::Pound || lookbehind == Lookbehind::PoundBang);
let mut nested = expand(
content,
&mut group_contains_paste,
flatten_single_interpolation && !is_attribute,
)?;
if is_attribute {
nested = expand_attr(nested, span, &mut group_contains_paste)?;
}
let group = if group_contains_paste {
let mut group = Group::new(delimiter, nested);
group.set_span(span);
*contains_paste = true;
group
} else {
group.clone()
};
if delimiter != Delimiter::None {
expanded.extend(iter::once(TokenTree::Group(group)));
} else if lookbehind == Lookbehind::DoubleColon {
expanded.extend(group.stream());
*contains_paste = true;
} else {
prev_none_group = Some(group);
}
}
lookbehind = Lookbehind::Other;
}
Some(TokenTree::Punct(punct)) => {
lookbehind = match punct.as_char() {
':' if lookbehind == Lookbehind::JointColon => Lookbehind::DoubleColon,
':' if punct.spacing() == Spacing::Joint => Lookbehind::JointColon,
'#' => Lookbehind::Pound,
'!' if lookbehind == Lookbehind::Pound => Lookbehind::PoundBang,
_ => Lookbehind::Other,
};
expanded.extend(iter::once(TokenTree::Punct(punct)));
}
Some(other) => {
lookbehind = Lookbehind::Other;
expanded.extend(iter::once(other));
}
None => return Ok(expanded),
}
}
}
#[derive(PartialEq)]
enum Lookbehind {
JointColon,
DoubleColon,
Pound,
PoundBang,
Other,
}
// https://github.com/dtolnay/paste/issues/26
fn is_single_interpolation_group(input: &TokenStream) -> bool {
#[derive(PartialEq)]
enum State {
Init,
Ident,
Literal,
Apostrophe,
Lifetime,
Colon1,
Colon2,
}
let mut state = State::Init;
for tt in input.clone() {
state = match (state, &tt) {
(State::Init, TokenTree::Ident(_)) => State::Ident,
(State::Init, TokenTree::Literal(_)) => State::Literal,
(State::Init, TokenTree::Punct(punct)) if punct.as_char() == '\'' => State::Apostrophe,
(State::Apostrophe, TokenTree::Ident(_)) => State::Lifetime,
(State::Ident, TokenTree::Punct(punct))
if punct.as_char() == ':' && punct.spacing() == Spacing::Joint =>
{
State::Colon1
}
(State::Colon1, TokenTree::Punct(punct))
if punct.as_char() == ':' && punct.spacing() == Spacing::Alone =>
{
State::Colon2
}
(State::Colon2, TokenTree::Ident(_)) => State::Ident,
_ => return false,
};
}
state == State::Ident || state == State::Literal || state == State::Lifetime
}
fn is_paste_operation(input: &TokenStream) -> bool {
let mut tokens = input.clone().into_iter();
match &tokens.next() {
Some(TokenTree::Punct(punct)) if punct.as_char() == '<' => {}
_ => return false,
}
let mut has_token = false;
loop {
match &tokens.next() {
Some(TokenTree::Punct(punct)) if punct.as_char() == '>' => {
return has_token && tokens.next().is_none();
}
Some(_) => has_token = true,
None => return false,
}
}
}
fn parse_bracket_as_segments(input: TokenStream, scope: Span) -> Result<Vec<Segment>> {
let mut tokens = input.into_iter().peekable();
match &tokens.next() {
Some(TokenTree::Punct(punct)) if punct.as_char() == '<' => {}
Some(wrong) => return Err(Error::new(wrong.span(), "expected `<`")),
None => return Err(Error::new(scope, "expected `[< ... >]`")),
}
let mut segments = segment::parse(&mut tokens)?;
match &tokens.next() {
Some(TokenTree::Punct(punct)) if punct.as_char() == '>' => {}
Some(wrong) => return Err(Error::new(wrong.span(), "expected `>`")),
None => return Err(Error::new(scope, "expected `[< ... >]`")),
}
if let Some(unexpected) = tokens.next() {
return Err(Error::new(
unexpected.span(),
"unexpected input, expected `[< ... >]`",
));
}
for segment in &mut segments {
if let Segment::String(string) = segment {
if string.value.starts_with("'\\u{") {
let hex = &string.value[4..string.value.len() - 2];
if let Ok(unsigned) = u32::from_str_radix(hex, 16) {
if let Some(ch) = char::from_u32(unsigned) {
string.value.clear();
string.value.push(ch);
continue;
}
}
}
if string.value.contains(&['#', '\\', '.', '+'][..])
|| string.value.starts_with("b'")
|| string.value.starts_with("b\"")
|| string.value.starts_with("br\"")
{
return Err(Error::new(string.span, "unsupported literal"));
}
let mut range = 0..string.value.len();
if string.value.starts_with("r\"") {
range.start += 2;
range.end -= 1;
} else if string.value.starts_with(&['"', '\''][..]) {
range.start += 1;
range.end -= 1;
}
string.value = string.value[range].replace('-', "_");
}
}
Ok(segments)
}
fn pasted_to_tokens(mut pasted: String, span: Span) -> Result<TokenStream> {
let mut tokens = TokenStream::new();
if pasted.starts_with('\'') {
let mut apostrophe = TokenTree::Punct(Punct::new('\'', Spacing::Joint));
apostrophe.set_span(span);
tokens.extend(iter::once(apostrophe));
pasted.remove(0);
}
let ident = match panic::catch_unwind(|| Ident::new(&pasted, span)) {
Ok(ident) => TokenTree::Ident(ident),
Err(_) => {
return Err(Error::new(
span,
&format!("`{:?}` is not a valid identifier", pasted),
));
}
};
tokens.extend(iter::once(ident));
Ok(tokens)
}

233
third_party/rust/paste/src/segment.rs поставляемый Normal file
Просмотреть файл

@ -0,0 +1,233 @@
use crate::error::{Error, Result};
use proc_macro::{token_stream, Delimiter, Ident, Span, TokenTree};
use std::iter::Peekable;
pub(crate) enum Segment {
String(LitStr),
Apostrophe(Span),
Env(LitStr),
Modifier(Colon, Ident),
}
pub(crate) struct LitStr {
pub value: String,
pub span: Span,
}
pub(crate) struct Colon {
pub span: Span,
}
pub(crate) fn parse(tokens: &mut Peekable<token_stream::IntoIter>) -> Result<Vec<Segment>> {
let mut segments = Vec::new();
while match tokens.peek() {
None => false,
Some(TokenTree::Punct(punct)) => punct.as_char() != '>',
Some(_) => true,
} {
match tokens.next().unwrap() {
TokenTree::Ident(ident) => {
let mut fragment = ident.to_string();
if fragment.starts_with("r#") {
fragment = fragment.split_off(2);
}
if fragment == "env"
&& match tokens.peek() {
Some(TokenTree::Punct(punct)) => punct.as_char() == '!',
_ => false,
}
{
let bang = tokens.next().unwrap(); // `!`
let expect_group = tokens.next();
let parenthesized = match &expect_group {
Some(TokenTree::Group(group))
if group.delimiter() == Delimiter::Parenthesis =>
{
group
}
Some(wrong) => return Err(Error::new(wrong.span(), "expected `(`")),
None => {
return Err(Error::new2(
ident.span(),
bang.span(),
"expected `(` after `env!`",
));
}
};
let mut inner = parenthesized.stream().into_iter();
let lit = match inner.next() {
Some(TokenTree::Literal(lit)) => lit,
Some(wrong) => {
return Err(Error::new(wrong.span(), "expected string literal"))
}
None => {
return Err(Error::new2(
ident.span(),
parenthesized.span(),
"expected string literal as argument to env! macro",
))
}
};
let lit_string = lit.to_string();
if lit_string.starts_with('"')
&& lit_string.ends_with('"')
&& lit_string.len() >= 2
{
// TODO: maybe handle escape sequences in the string if
// someone has a use case.
segments.push(Segment::Env(LitStr {
value: lit_string[1..lit_string.len() - 1].to_owned(),
span: lit.span(),
}));
} else {
return Err(Error::new(lit.span(), "expected string literal"));
}
if let Some(unexpected) = inner.next() {
return Err(Error::new(
unexpected.span(),
"unexpected token in env! macro",
));
}
} else {
segments.push(Segment::String(LitStr {
value: fragment,
span: ident.span(),
}));
}
}
TokenTree::Literal(lit) => {
segments.push(Segment::String(LitStr {
value: lit.to_string(),
span: lit.span(),
}));
}
TokenTree::Punct(punct) => match punct.as_char() {
'_' => segments.push(Segment::String(LitStr {
value: "_".to_owned(),
span: punct.span(),
})),
'\'' => segments.push(Segment::Apostrophe(punct.span())),
':' => {
let colon_span = punct.span();
let colon = Colon { span: colon_span };
let ident = match tokens.next() {
Some(TokenTree::Ident(ident)) => ident,
wrong => {
let span = wrong.as_ref().map_or(colon_span, TokenTree::span);
return Err(Error::new(span, "expected identifier after `:`"));
}
};
segments.push(Segment::Modifier(colon, ident));
}
_ => return Err(Error::new(punct.span(), "unexpected punct")),
},
TokenTree::Group(group) => {
if group.delimiter() == Delimiter::None {
let mut inner = group.stream().into_iter().peekable();
let nested = parse(&mut inner)?;
if let Some(unexpected) = inner.next() {
return Err(Error::new(unexpected.span(), "unexpected token"));
}
segments.extend(nested);
} else {
return Err(Error::new(group.span(), "unexpected token"));
}
}
}
}
Ok(segments)
}
pub(crate) fn paste(segments: &[Segment]) -> Result<String> {
let mut evaluated = Vec::new();
let mut is_lifetime = false;
for segment in segments {
match segment {
Segment::String(segment) => {
evaluated.push(segment.value.clone());
}
Segment::Apostrophe(span) => {
if is_lifetime {
return Err(Error::new(*span, "unexpected lifetime"));
}
is_lifetime = true;
}
Segment::Env(var) => {
let resolved = match std::env::var(&var.value) {
Ok(resolved) => resolved,
Err(_) => {
return Err(Error::new(
var.span,
&format!("no such env var: {:?}", var.value),
));
}
};
let resolved = resolved.replace('-', "_");
evaluated.push(resolved);
}
Segment::Modifier(colon, ident) => {
let last = match evaluated.pop() {
Some(last) => last,
None => {
return Err(Error::new2(colon.span, ident.span(), "unexpected modifier"))
}
};
match ident.to_string().as_str() {
"lower" => {
evaluated.push(last.to_lowercase());
}
"upper" => {
evaluated.push(last.to_uppercase());
}
"snake" => {
let mut acc = String::new();
let mut prev = '_';
for ch in last.chars() {
if ch.is_uppercase() && prev != '_' {
acc.push('_');
}
acc.push(ch);
prev = ch;
}
evaluated.push(acc.to_lowercase());
}
"camel" => {
let mut acc = String::new();
let mut prev = '_';
for ch in last.chars() {
if ch != '_' {
if prev == '_' {
for chu in ch.to_uppercase() {
acc.push(chu);
}
} else if prev.is_uppercase() {
for chl in ch.to_lowercase() {
acc.push(chl);
}
} else {
acc.push(ch);
}
}
prev = ch;
}
evaluated.push(acc);
}
_ => {
return Err(Error::new2(
colon.span,
ident.span(),
"unsupported modifier",
));
}
}
}
}
}
let mut pasted = evaluated.into_iter().collect::<String>();
if is_lifetime {
pasted.insert(0, '\'');
}
Ok(pasted)
}

60
third_party/rust/paste/tests/test_attr.rs поставляемый Normal file
Просмотреть файл

@ -0,0 +1,60 @@
use paste::paste;
use paste_test_suite::paste_test;
#[test]
fn test_attr() {
paste! {
#[paste_test(k = "val" "ue")]
struct A;
#[paste_test_suite::paste_test(k = "val" "ue")]
struct B;
#[::paste_test_suite::paste_test(k = "val" "ue")]
struct C;
#[paste_test(k = "va" [<l u>] e)]
struct D;
}
let _ = A;
let _ = B;
let _ = C;
let _ = D;
}
#[test]
fn test_paste_cfg() {
macro_rules! m {
($ret:ident, $width:expr) => {
paste! {
#[cfg(any(feature = "protocol_feature_" $ret:snake, target_pointer_width = "" $width))]
fn new() -> $ret { todo!() }
}
};
}
struct Paste;
#[cfg(target_pointer_width = "64")]
m!(Paste, 64);
#[cfg(target_pointer_width = "32")]
m!(Paste, 32);
let _ = new;
}
#[test]
fn test_path_in_attr() {
macro_rules! m {
(#[x = $x:ty]) => {
stringify!($x)
};
}
let ty = paste! {
m!(#[x = foo::Bar])
};
assert_eq!("foo::Bar", ty);
}

77
third_party/rust/paste/tests/test_doc.rs поставляемый Normal file
Просмотреть файл

@ -0,0 +1,77 @@
use paste::paste;
#[test]
fn test_paste_doc() {
macro_rules! m {
($ret:ident) => {
paste! {
#[doc = "Create a new [`" $ret "`] object."]
fn new() -> $ret { todo!() }
}
};
}
struct Paste;
m!(Paste);
let _ = new;
}
macro_rules! get_doc {
(#[doc = $literal:tt]) => {
$literal
};
}
#[test]
fn test_escaping() {
let doc = paste! {
get_doc!(#[doc = "s\"" r#"r#""#])
};
let expected = "s\"r#\"";
assert_eq!(doc, expected);
}
#[test]
fn test_literals() {
let doc = paste! {
get_doc!(#[doc = "int=" 0x1 " bool=" true " float=" 0.01])
};
let expected = "int=0x1 bool=true float=0.01";
assert_eq!(doc, expected);
}
#[test]
fn test_case() {
let doc = paste! {
get_doc!(#[doc = "HTTP " get:upper "!"])
};
let expected = "HTTP GET!";
assert_eq!(doc, expected);
}
// https://github.com/dtolnay/paste/issues/63
#[test]
fn test_stringify() {
macro_rules! create {
($doc:expr) => {
paste! {
#[doc = $doc]
pub struct Struct;
}
};
}
macro_rules! forward {
($name:ident) => {
create!(stringify!($name));
};
}
forward!(documentation);
let _ = Struct;
}

249
third_party/rust/paste/tests/test_expr.rs поставляемый Normal file
Просмотреть файл

@ -0,0 +1,249 @@
use paste::paste;
#[test]
fn test_shared_hygiene() {
paste! {
let [<a a>] = 1;
assert_eq!([<a a>], 1);
}
}
#[test]
fn test_repeat() {
const ROCKET_A: &str = "/a";
const ROCKET_B: &str = "/b";
macro_rules! routes {
($($route:ident),*) => {{
paste! {
vec![$( [<ROCKET_ $route>] ),*]
}
}}
}
let routes = routes!(A, B);
assert_eq!(routes, vec!["/a", "/b"]);
}
#[test]
fn test_literals() {
const CONST0: &str = "const0";
let pasted = paste!([<CONST 0>]);
assert_eq!(pasted, CONST0);
let pasted = paste!([<CONST '0'>]);
assert_eq!(pasted, CONST0);
let pasted = paste!([<CONST "0">]);
assert_eq!(pasted, CONST0);
let pasted = paste!([<CONST r"0">]);
assert_eq!(pasted, CONST0);
let pasted = paste!([<CONST '\u{30}'>]);
assert_eq!(pasted, CONST0);
}
#[test]
fn test_underscore() {
paste! {
const A_B: usize = 0;
assert_eq!([<A _ B>], 0);
}
}
#[test]
fn test_lifetime() {
paste! {
#[allow(dead_code)]
struct S<[<'d e>]> {
q: &[<'d e>] str,
}
}
}
#[test]
fn test_keyword() {
paste! {
struct [<F move>];
let _ = Fmove;
}
}
#[test]
fn test_literal_str() {
paste! {
#[allow(non_camel_case_types)]
struct [<Foo "Bar-Baz">];
let _ = FooBar_Baz;
}
}
#[test]
fn test_env_literal() {
paste! {
struct [<Lib env bar>];
let _ = Libenvbar;
}
}
#[test]
fn test_env_present() {
paste! {
struct [<Lib env!("CARGO_PKG_NAME")>];
let _ = Libpaste;
}
}
#[test]
fn test_raw_identifier() {
paste! {
struct [<F r#move>];
let _ = Fmove;
}
}
#[test]
fn test_false_start() {
trait Trait {
fn f() -> usize;
}
struct S;
impl Trait for S {
fn f() -> usize {
0
}
}
paste! {
let x = [<S as Trait>::f()];
assert_eq!(x[0], 0);
}
}
#[test]
fn test_local_variable() {
let yy = 0;
paste! {
assert_eq!([<y y>], 0);
}
}
#[test]
fn test_empty() {
paste! {
assert_eq!(stringify!([<y y>]), "yy");
assert_eq!(stringify!([<>]).replace(' ', ""), "[<>]");
}
}
#[test]
fn test_env_to_lower() {
paste! {
struct [<Lib env!("CARGO_PKG_NAME"):lower>];
let _ = Libpaste;
}
}
#[test]
fn test_env_to_upper() {
paste! {
const [<LIB env!("CARGO_PKG_NAME"):upper>]: &str = "libpaste";
let _ = LIBPASTE;
}
}
#[test]
fn test_env_to_snake() {
paste! {
const [<LIB env!("CARGO_PKG_NAME"):snake:upper>]: &str = "libpaste";
let _ = LIBPASTE;
}
}
#[test]
fn test_env_to_camel() {
paste! {
#[allow(non_upper_case_globals)]
const [<LIB env!("CARGO_PKG_NAME"):camel>]: &str = "libpaste";
let _ = LIBPaste;
}
}
mod test_x86_feature_literal {
// work around https://github.com/rust-lang/rust/issues/72726
use paste::paste;
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
macro_rules! my_is_x86_feature_detected {
($feat:literal) => {
paste! {
#[test]
fn test() {
let _ = is_x86_feature_detected!($feat);
}
}
};
}
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
macro_rules! my_is_x86_feature_detected {
($feat:literal) => {
#[ignore]
#[test]
fn test() {}
};
}
my_is_x86_feature_detected!("mmx");
}
#[rustversion::since(1.46)]
mod test_local_setter {
// https://github.com/dtolnay/paste/issues/7
use paste::paste;
#[derive(Default)]
struct Test {
val: i32,
}
impl Test {
fn set_val(&mut self, arg: i32) {
self.val = arg;
}
}
macro_rules! setter {
($obj:expr, $field:ident, $value:expr) => {
paste! { $obj.[<set_ $field>]($value); }
};
($field:ident, $value:expr) => {{
let mut new = Test::default();
setter!(new, val, $value);
new
}};
}
#[test]
fn test_local_setter() {
let a = setter!(val, 42);
assert_eq!(a.val, 42);
}
}

247
third_party/rust/paste/tests/test.rs → third_party/rust/paste/tests/test_item.rs поставляемый
Просмотреть файл

@ -1,7 +1,9 @@
mod test_basic {
use paste::paste;
struct Struct;
paste::item! {
paste! {
impl Struct {
fn [<a b c>]() {}
}
@ -14,10 +16,12 @@ mod test_basic {
}
mod test_in_impl {
use paste::paste;
struct Struct;
impl Struct {
paste::item! {
paste! {
fn [<a b c>]() {}
}
}
@ -28,143 +32,12 @@ mod test_in_impl {
}
}
#[test]
fn test_shared_hygiene() {
paste::expr! {
let [<a a>] = 1;
assert_eq!([<a a>], 1);
}
}
#[test]
fn test_repeat() {
const ROCKET_A: &'static str = "/a";
const ROCKET_B: &'static str = "/b";
macro_rules! routes {
($($route:ident),*) => {{
paste::expr! {
vec![$( [<ROCKET_ $route>] ),*]
}
}}
}
let routes = routes!(A, B);
assert_eq!(routes, vec!["/a", "/b"]);
}
#[test]
fn test_integer() {
const CONST0: &'static str = "const0";
let pasted = paste::expr!([<CONST 0>]);
assert_eq!(pasted, CONST0);
}
#[test]
fn test_underscore() {
paste::expr! {
const A_B: usize = 0;
assert_eq!([<A _ B>], 0);
}
}
#[test]
fn test_lifetime() {
paste::expr! {
#[allow(dead_code)]
struct S<[<'d e>]> {
q: &[<'d e>] str,
}
}
}
#[test]
fn test_keyword() {
paste::expr! {
struct [<F move>];
let _ = Fmove;
}
}
#[test]
fn test_literal_str() {
paste::expr! {
struct [<Foo "Bar-Baz">];
let _ = FooBar_Baz;
}
}
#[test]
fn test_env_literal() {
paste::expr! {
struct [<Lib env bar>];
let _ = Libenvbar;
}
}
#[test]
fn test_env_present() {
paste::expr! {
struct [<Lib env!("CARGO_PKG_NAME")>];
let _ = Libpaste;
}
}
#[test]
fn test_raw_identifier() {
paste::expr! {
struct [<F r#move>];
let _ = Fmove;
}
}
#[test]
fn test_false_start() {
trait Trait {
fn f() -> usize;
}
struct S;
impl Trait for S {
fn f() -> usize {
0
}
}
paste::expr! {
let x = [<S as Trait>::f()];
assert_eq!(x[0], 0);
}
}
#[test]
fn test_local_variable() {
let yy = 0;
paste::expr! {
assert_eq!([<y y>], 0);
}
}
#[test]
fn test_empty() {
paste::expr! {
assert_eq!(stringify!([<y y>]), "yy");
assert_eq!(stringify!([<>]).replace(' ', ""), "[<>]");
}
}
mod test_none_delimited_single_ident {
use paste::paste;
macro_rules! m {
($id:ident) => {
paste::item! {
paste! {
fn f() -> &'static str {
stringify!($id)
}
@ -181,9 +54,11 @@ mod test_none_delimited_single_ident {
}
mod test_none_delimited_single_lifetime {
use paste::paste;
macro_rules! m {
($life:lifetime) => {
paste::item! {
paste! {
pub struct S;
impl<$life> S {
fn f() {}
@ -201,9 +76,11 @@ mod test_none_delimited_single_lifetime {
}
mod test_to_lower {
use paste::paste;
macro_rules! m {
($id:ident) => {
paste::item! {
paste! {
fn [<my_ $id:lower _here>](_arg: u8) -> &'static str {
stringify!([<$id:lower>])
}
@ -219,19 +96,12 @@ mod test_to_lower {
}
}
#[test]
fn test_env_to_lower() {
paste::expr! {
struct [<Lib env!("CARGO_PKG_NAME"):lower>];
let _ = Libpaste;
}
}
mod test_to_upper {
use paste::paste;
macro_rules! m {
($id:ident) => {
paste::item! {
paste! {
const [<MY_ $id:upper _HERE>]: &str = stringify!([<$id:upper>]);
}
};
@ -245,19 +115,12 @@ mod test_to_upper {
}
}
#[test]
fn test_env_to_upper() {
paste::expr! {
const [<LIB env!("CARGO_PKG_NAME"):upper>]: &str = "libpaste";
let _ = LIBPASTE;
}
}
mod test_to_snake {
use paste::paste;
macro_rules! m {
($id:ident) => {
paste::item! {
paste! {
const DEFAULT_SNAKE: &str = stringify!([<$id:snake>]);
const LOWER_SNAKE: &str = stringify!([<$id:snake:lower>]);
const UPPER_SNAKE: &str = stringify!([<$id:snake:upper>]);
@ -275,19 +138,12 @@ mod test_to_snake {
}
}
#[test]
fn test_env_to_snake() {
paste::expr! {
const [<LIB env!("CARGO_PKG_NAME"):snake:upper>]: &str = "libpaste";
let _ = LIBPASTE;
}
}
mod test_to_camel {
use paste::paste;
macro_rules! m {
($id:ident) => {
paste::item! {
paste! {
const DEFAULT_CAMEL: &str = stringify!([<$id:camel>]);
const LOWER_CAMEL: &str = stringify!([<$id:camel:lower>]);
const UPPER_CAMEL: &str = stringify!([<$id:camel:upper>]);
@ -305,21 +161,14 @@ mod test_to_camel {
}
}
#[test]
fn test_env_to_camel() {
paste::expr! {
const [<LIB env!("CARGO_PKG_NAME"):camel>]: &str = "libpaste";
let _ = LIBPaste;
}
}
mod test_doc_expr {
// https://github.com/dtolnay/paste/issues/29
use paste::paste;
macro_rules! doc_expr {
($doc:expr) => {
paste::item! {
paste! {
#[doc = $doc]
pub struct S;
}
@ -337,6 +186,8 @@ mod test_doc_expr {
mod test_type_in_path {
// https://github.com/dtolnay/paste/issues/31
use paste::paste;
mod keys {
#[derive(Default)]
pub struct Mib<T = ()>(std::marker::PhantomData<T>);
@ -344,7 +195,7 @@ mod test_type_in_path {
macro_rules! types {
($mib:ty) => {
paste::item! {
paste! {
#[derive(Default)]
pub struct S(pub keys::$mib);
}
@ -353,7 +204,7 @@ mod test_type_in_path {
macro_rules! write {
($fn:ident, $field:ty) => {
paste::item! {
paste! {
pub fn $fn() -> $field {
$field::default()
}
@ -376,11 +227,13 @@ mod test_type_in_path {
mod test_type_in_fn_arg {
// https://github.com/dtolnay/paste/issues/38
use paste::paste;
fn _jit_address(_node: ()) {}
macro_rules! jit_reexport {
($fn:ident, $arg:ident : $typ:ty) => {
paste::item! {
paste! {
pub fn $fn($arg: $typ) {
[<_jit_ $fn>]($arg);
}
@ -399,9 +252,11 @@ mod test_type_in_fn_arg {
mod test_pat_in_expr_position {
// https://github.com/xiph/rav1e/pull/2324/files
use paste::paste;
macro_rules! rav1e_bad {
($e:pat) => {
paste::item! {
paste! {
#[test]
fn test() {
let _ = $e;
@ -412,31 +267,3 @@ mod test_pat_in_expr_position {
rav1e_bad!(std::fmt::Error);
}
#[cfg(not(no_literal_matcher))]
mod test_x86_feature_literal {
// work around https://github.com/rust-lang/rust/issues/72726
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
macro_rules! my_is_x86_feature_detected {
($feat:literal) => {
paste::item! {
#[test]
fn test() {
let _ = is_x86_feature_detected!($feat);
}
}
};
}
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
macro_rules! my_is_x86_feature_detected {
($feat:literal) => {
#[ignore]
#[test]
fn test() {}
};
}
my_is_x86_feature_detected!("mmx");
}

4
third_party/rust/paste/tests/ui/case-warning.rs поставляемый
Просмотреть файл

@ -1,8 +1,10 @@
#![deny(warnings)]
use paste::paste;
macro_rules! m {
($i:ident) => {
paste::item! {
paste! {
pub fn [<foo $i>]() {}
}
};

12
third_party/rust/paste/tests/ui/case-warning.stderr поставляемый
Просмотреть файл

@ -1,16 +1,16 @@
error: function `fooBar` should have a snake case name
--> $DIR/case-warning.rs:6:20
--> tests/ui/case-warning.rs:8:20
|
6 | pub fn [<foo $i>]() {}
8 | pub fn [<foo $i>]() {}
| ^^^^^^^^^^ help: convert the identifier to snake case: `foo_bar`
...
11 | m!(Bar);
| -------- in this macro invocation
13 | m!(Bar);
| ------- in this macro invocation
|
note: the lint level is defined here
--> $DIR/case-warning.rs:1:9
--> tests/ui/case-warning.rs:1:9
|
1 | #![deny(warnings)]
| ^^^^^^^^
= note: `#[deny(non_snake_case)]` implied by `#[deny(warnings)]`
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
= note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)

4
third_party/rust/paste/tests/ui/env-empty.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<env!()>]() {}
}

4
third_party/rust/paste/tests/ui/env-empty.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: expected string literal as argument to env! macro
--> $DIR/env-empty.rs:2:10
--> tests/ui/env-empty.rs:4:10
|
2 | fn [<env!()>]() {}
4 | fn [<env!()>]() {}
| ^^^^^^

4
third_party/rust/paste/tests/ui/env-non-string.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<env!(1.31)>]() {}
}

4
third_party/rust/paste/tests/ui/env-non-string.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: expected string literal
--> $DIR/env-non-string.rs:2:15
--> tests/ui/env-non-string.rs:4:15
|
2 | fn [<env!(1.31)>]() {}
4 | fn [<env!(1.31)>]() {}
| ^^^^

4
third_party/rust/paste/tests/ui/env-suffix.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<env!("VAR"suffix)>]() {}
}

4
third_party/rust/paste/tests/ui/env-suffix.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: expected string literal
--> $DIR/env-suffix.rs:2:15
--> tests/ui/env-suffix.rs:4:15
|
2 | fn [<env!("VAR"suffix)>]() {}
4 | fn [<env!("VAR"suffix)>]() {}
| ^^^^^^^^^^^

4
third_party/rust/paste/tests/ui/env-unexpected.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<env!("VAR" "VAR")>]() {}
}

4
third_party/rust/paste/tests/ui/env-unexpected.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: unexpected token in env! macro
--> $DIR/env-unexpected.rs:2:21
--> tests/ui/env-unexpected.rs:4:21
|
2 | fn [<env!("VAR" "VAR")>]() {}
4 | fn [<env!("VAR" "VAR")>]() {}
| ^^^^^

12
third_party/rust/paste/tests/ui/invalid-ident.rs поставляемый
Просмотреть файл

@ -1,5 +1,15 @@
paste::item! {
use paste::paste;
paste! {
fn [<0 f>]() {}
}
paste! {
fn [<f '"'>]() {}
}
paste! {
fn [<f "'">]() {}
}
fn main() {}

16
third_party/rust/paste/tests/ui/invalid-ident.stderr поставляемый
Просмотреть файл

@ -1,5 +1,17 @@
error: `"0f"` is not a valid identifier
--> $DIR/invalid-ident.rs:2:8
--> tests/ui/invalid-ident.rs:4:8
|
2 | fn [<0 f>]() {}
4 | fn [<0 f>]() {}
| ^^^^^^^
error: `"f\""` is not a valid identifier
--> tests/ui/invalid-ident.rs:8:8
|
8 | fn [<f '"'>]() {}
| ^^^^^^^^^
error: `"f'"` is not a valid identifier
--> tests/ui/invalid-ident.rs:12:8
|
12 | fn [<f "'">]() {}
| ^^^^^^^^^

4
third_party/rust/paste/tests/ui/missing-paren-on-env.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<env! huh>]() {}
}

4
third_party/rust/paste/tests/ui/missing-paren-on-env.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: expected `(`
--> $DIR/missing-paren-on-env.rs:2:15
--> tests/ui/missing-paren-on-env.rs:4:15
|
2 | fn [<env! huh>]() {}
4 | fn [<env! huh>]() {}
| ^^^

4
third_party/rust/paste/tests/ui/no-env-var.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<a env!("PASTE_UNKNOWN") b>]() {}
}

4
third_party/rust/paste/tests/ui/no-env-var.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: no such env var: "PASTE_UNKNOWN"
--> $DIR/no-env-var.rs:2:17
--> tests/ui/no-env-var.rs:4:17
|
2 | fn [<a env!("PASTE_UNKNOWN") b>]() {}
4 | fn [<a env!("PASTE_UNKNOWN") b>]() {}
| ^^^^^^^^^^^^^^^

4
third_party/rust/paste/tests/ui/no-ident-after-colon.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<name:0>]() {}
}

4
third_party/rust/paste/tests/ui/no-ident-after-colon.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: expected identifier after `:`
--> $DIR/no-ident-after-colon.rs:2:15
--> tests/ui/no-ident-after-colon.rs:4:15
|
2 | fn [<name:0>]() {}
4 | fn [<name:0>]() {}
| ^

4
third_party/rust/paste/tests/ui/unexpected-group.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<a {} b>]() {}
}

4
third_party/rust/paste/tests/ui/unexpected-group.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: unexpected token
--> $DIR/unexpected-group.rs:2:12
--> tests/ui/unexpected-group.rs:4:12
|
2 | fn [<a {} b>]() {}
4 | fn [<a {} b>]() {}
| ^^

4
third_party/rust/paste/tests/ui/unexpected-modifier.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<:lower x>]() {}
}

4
third_party/rust/paste/tests/ui/unexpected-modifier.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: unexpected modifier
--> $DIR/unexpected-modifier.rs:2:10
--> tests/ui/unexpected-modifier.rs:4:10
|
2 | fn [<:lower x>]() {}
4 | fn [<:lower x>]() {}
| ^^^^^^

4
third_party/rust/paste/tests/ui/unexpected-punct.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<a + b>]() {}
}

4
third_party/rust/paste/tests/ui/unexpected-punct.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: unexpected punct
--> $DIR/unexpected-punct.rs:2:12
--> tests/ui/unexpected-punct.rs:4:12
|
2 | fn [<a + b>]() {}
4 | fn [<a + b>]() {}
| ^

20
third_party/rust/paste/tests/ui/unsupported-literal.rs поставляемый
Просмотреть файл

@ -1,5 +1,21 @@
paste::item! {
fn [<1e+100>]() {}
use paste::paste;
paste! {
fn [<x 1e+100 z>]() {}
}
paste! {
// `xyz` is not correct. `xbyz` is certainly not correct. Maybe `x121z`
// would be justifiable but for now don't accept this.
fn [<x b'y' z>]() {}
}
paste! {
fn [<x b"y" z>]() {}
}
paste! {
fn [<x br"y" z>]() {}
}
fn main() {}

24
third_party/rust/paste/tests/ui/unsupported-literal.stderr поставляемый
Просмотреть файл

@ -1,5 +1,23 @@
error: unsupported literal
--> $DIR/unsupported-literal.rs:2:10
--> tests/ui/unsupported-literal.rs:4:12
|
2 | fn [<1e+100>]() {}
| ^^^^^^
4 | fn [<x 1e+100 z>]() {}
| ^^^^^^
error: unsupported literal
--> tests/ui/unsupported-literal.rs:10:12
|
10 | fn [<x b'y' z>]() {}
| ^^^^
error: unsupported literal
--> tests/ui/unsupported-literal.rs:14:12
|
14 | fn [<x b"y" z>]() {}
| ^^^^
error: unsupported literal
--> tests/ui/unsupported-literal.rs:18:12
|
18 | fn [<x br"y" z>]() {}
| ^^^^^

4
third_party/rust/paste/tests/ui/unsupported-modifier.rs поставляемый
Просмотреть файл

@ -1,4 +1,6 @@
paste::item! {
use paste::paste;
paste! {
fn [<a:pillow>]() {}
}

4
third_party/rust/paste/tests/ui/unsupported-modifier.stderr поставляемый
Просмотреть файл

@ -1,5 +1,5 @@
error: unsupported modifier
--> $DIR/unsupported-modifier.rs:2:11
--> tests/ui/unsupported-modifier.rs:4:11
|
2 | fn [<a:pillow>]() {}
4 | fn [<a:pillow>]() {}
| ^^^^^^^