Open
Description
I tried this code:
#[rustfmt::skip] // <- The code compiles if this attribute is removed
#[macro_export]
macro_rules! _a {
() => {
"Hello world"
};
}
pub use _a as a;
fn main() {
println!(a!());
}(https://gist.github.com/jakobrs/8bcaf3448431126005e16ac678f769c5)
I expected to see this happen: The code should compile successfully.
Instead, this happened: The macro_expanded_macro_exports_accessed_by_absolute_paths error is triggered.
Full error message
error: cannot determine resolution for the macro `a`
--> ./b.rs:12:14
|
12 | println!(a!());
| ^
|
= note: import resolution is stuck, try simplifying macro imports
error: macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths
--> ./b.rs:9:9
|
9 | pub use _a as a;
| ^^^^^^^
|
= note: `#[deny(macro_expanded_macro_exports_accessed_by_absolute_paths)]` on by default
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #52234 <https://github.com/rust-lang/rust/issues/52234>
note: the macro is defined here
--> ./b.rs:3:1
|
3 | / macro_rules! _a {
4 | | () => {
5 | | "Hello world"
6 | | };
7 | | }
| |_^
error: macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths
--> ./b.rs:12:14
|
12 | println!(a!());
| ^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #52234 <https://github.com/rust-lang/rust/issues/52234>
note: the macro is defined here
--> ./b.rs:3:1
|
3 | / macro_rules! _a {
4 | | () => {
5 | | "Hello world"
6 | | };
7 | | }
| |_^
error: aborting due to 3 previous errors
Meta
This happens with Rust 1.60, 1.61 and nightly (bb8c2f4 2022-06-19)
rustc --version --verbose:
# Nightly
rustc 1.63.0-nightly (bb8c2f411 2022-06-19)
binary: rustc
commit-hash: bb8c2f41174caceec00c28bc6c5c20ae9f9a175c
commit-date: 2022-06-19
host: x86_64-unknown-linux-gnu
release: 1.63.0-nightly
LLVM version: 14.0.5
# Stable
rustc 1.61.0 (fe5b13d68 2022-05-18)
binary: rustc
commit-hash: fe5b13d681f25ee6474be29d748c65adcd91f69e
commit-date: 2022-05-18
host: x86_64-unknown-linux-gnu
release: 1.61.0
LLVM version: 14.0.0