diff options
| author | Predrag Gruevski <2348618+obi1kenobi@users.noreply.github.com> | 2024-09-27 14:34:48 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-09-27 14:34:48 -0400 |
| commit | 3b9db47f07e2b609dc2acf45b0eaa7239ef76f49 (patch) | |
| tree | b2bd850b3ab69988481309858e477e1f681d9a2f /compiler/rustc_llvm/llvm-wrapper | |
| parent | a3f76a26e045a760bb1163b7eab36872985242d5 (diff) | |
| download | rust-3b9db47f07e2b609dc2acf45b0eaa7239ef76f49.tar.gz rust-3b9db47f07e2b609dc2acf45b0eaa7239ef76f49.zip | |
rustdoc: update `ProcMacro` docs section on helper attributes
I believe the mention of attribute macros in the section on proc macro helper attributes is erroneous. As far as I can tell, attribute macros cannot define helper attributes.
The following attribute macro is not valid (fails to build), no matter how I try to define (or skip defining) the helpers:
```rust
#[proc_macro_attribute(attributes(helper))]
pub fn attribute_helpers(_attr: TokenStream, item: TokenStream) -> TokenStream {
item
}
```
The [language reference](https://doc.rust-lang.org/reference/procedural-macros.html#attribute-macros) also doesn't seem to mention attribute macro helpers. The helpers subsection is inside the section on derive macros.Diffstat (limited to 'compiler/rustc_llvm/llvm-wrapper')
0 files changed, 0 insertions, 0 deletions