tests: adds cargo fix tests

Co-Developed-by: Eric Holk
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>

tests/ui/macros/expr_2021_cargo_fix_edition.fixed

@@ -0,0 +1,24 @@
+//@ run-rustfix
+//@ check-pass
+//@ compile-flags: --edition=2021
+#![allow(incomplete_features)]
+#![feature(expr_fragment_specifier_2024)]
+#![warn(edition_2024_expr_fragment_specifier)]
+
+macro_rules! m {
+ ($e:expr_2021) => { //~ WARN: the `expr` fragment specifier will accept more expressions in the 2024 edition
+ //~^ WARN: this changes meaning in Rust 2024
+ $e
+ };
+ ($($i:expr_2021)*) => { }; //~ WARN: the `expr` fragment specifier will accept more expressions in the 2024 edition
+ //~^ WARN: this changes meaning in Rust 2024
+}
+
+macro_rules! test {
+ (expr) => {}
+}
+
+fn main() {
+ m!(());
+ test!(expr);
+}

tests/ui/macros/expr_2021_cargo_fix_edition.rs

@@ -0,0 +1,24 @@
+//@ run-rustfix
+//@ check-pass
+//@ compile-flags: --edition=2021
+#![allow(incomplete_features)]
+#![feature(expr_fragment_specifier_2024)]
+#![warn(edition_2024_expr_fragment_specifier)]
+
+macro_rules! m {
+ ($e:expr) => { //~ WARN: the `expr` fragment specifier will accept more expressions in the 2024 edition
+ //~^ WARN: this changes meaning in Rust 2024
+ $e
+ };
+ ($($i:expr)*) => { }; //~ WARN: the `expr` fragment specifier will accept more expressions in the 2024 edition
+ //~^ WARN: this changes meaning in Rust 2024
+}
+
+macro_rules! test {
+ (expr) => {}
+}
+
+fn main() {
+ m!(());
+ test!(expr);
+}

tests/ui/macros/expr_2021_cargo_fix_edition.stderr

@@ -0,0 +1,33 @@
+warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
+ --> $DIR/expr_2021_cargo_fix_edition.rs:9:9
+ |
+LL | ($e:expr) => {
+ | ^^^^
+ |
+ = warning: this changes meaning in Rust 2024
+ = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
+note: the lint level is defined here
+ --> $DIR/expr_2021_cargo_fix_edition.rs:6:9
+ |
+LL | #![warn(edition_2024_expr_fragment_specifier)]
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+help: to keep the existing behavior, use the `expr_2021` fragment specifier
+ |
+LL | ($e:expr_2021) => {
+ | ~~~~~~~~~
+
+warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
+ --> $DIR/expr_2021_cargo_fix_edition.rs:13:11
+ |
+LL | ($($i:expr)*) => { };
+ | ^^^^
+ |
+ = warning: this changes meaning in Rust 2024
+ = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
+help: to keep the existing behavior, use the `expr_2021` fragment specifier
+ |
+LL | ($($i:expr_2021)*) => { };
+ | ~~~~~~~~~
+
+warning: 2 warnings emitted
+

tests/ui/macros/expr_2021_inline_const.edi2021.stderr

@@ -1,5 +1,5 @@
 error: no rules expected the token `const`
- --> $DIR/expr_2021_inline_const.rs:21:12
+ --> $DIR/expr_2021_inline_const.rs:26:12
  |
 LL | macro_rules! m2021 {
  | ------------------ when calling this macro
@@ -14,7 +14,7 @@ LL | ($e:expr_2021) => {
  | ^^^^^^^^^^^^
 
 error: no rules expected the token `const`
- --> $DIR/expr_2021_inline_const.rs:22:12
+ --> $DIR/expr_2021_inline_const.rs:27:12
  |
 LL | macro_rules! m2024 {
  | ------------------ when calling this macro

tests/ui/macros/expr_2021_inline_const.edi2024.stderr

@@ -1,5 +1,5 @@
 error: no rules expected the token `const`
- --> $DIR/expr_2021_inline_const.rs:21:12
+ --> $DIR/expr_2021_inline_const.rs:26:12
  |
 LL | macro_rules! m2021 {
  | ------------------ when calling this macro

tests/ui/macros/expr_2021_inline_const.rs

@@ -17,7 +17,14 @@ macro_rules! m2024 {
  $e
  };
 }
+
+macro_rules! test {
+ (expr) => {}
+}
+
 fn main() {
  m2021!(const { 1 }); //~ ERROR: no rules expected the token `const`
  m2024!(const { 1 }); //[edi2021]~ ERROR: no rules expected the token `const`
+
+ test!(expr);
 }