error: an inner attribute is not permitted in this context

[9876691]

I'm getting the following error from the generated code. If I edit cornucopia.rs directly and make the changes the compiler suggests it works again.

error: an inner attribute is not permitted in this context
  --> /workspace/target/debug/build/app-62a31f47f074433e/out/cornucopia.rs:5:5
   |
5  |       #![allow(dead_code)]
   |       ^^^^^^^^^^^^^^^^^^^^
6  | /     pub mod types { pub mod public { #[derive( Debug, postgres_types::ToSql, postgres_types::FromSql, Clone, Copy, PartialEq, Eq)]
7  | |                         #[postgres(name = "audit_action")]
8  | |                         pub enum AuditAction { AddMember,DeleteMember,AddSecret,DeleteSecret,AccessSecrets,NewServiceAccount,DeleteServic...
9  | | #[derive( Debug, postgres_types::ToSql, postgres_types::FromSql, Clone, Copy, PartialEq, Eq)]
...  |
16 | |                         #[postgres(name = "permission")]
17 | |                         pub enum Permission { ManageTeam } } }pub mod queries { pub mod audit { use futures::{{StreamExt, TryStreamExt}};...
   | |______________________________________________________________- the inner attribute doesn't annotate this module
   |
   = note: inner attributes, like `#![no_std]`, annotate the item enclosing them, and are usually found at the beginning of source files
help: to annotate the module, change the attribute from inner to outer style
   |
5  -     #![allow(dead_code)]
5  +     #[allow(dead_code)]

[LouisGariepy]

This is a consequence of using the include! macro (as I suspect you are doing, please let me know if I'm wrong), and not something specific to Cornucopia. See these issues: rust-lang/rust#66920, rust-lang/rfcs#752.

Until this Rust limitation is solved, one workaround is to use a path annotation instead of include!:

#[path = "path/to/the/generated/cornucopia/module"]
mod cornucopia;

Please let me know if this works for you. If not, I have some other ideas up my sleeve, but honestly I'd prefer to keep the attributes as is if possible.

Cheers! Thanks for your interest in Cornucopia.

---

FYI, changing the attributes from inner (#![...]) to outer (#[...]) will not work as intended since it will only apply these attributes to the next module, not the whole parent file. However, you can manually remove these annotations if you are intent on it, as they are simply lint-related attributes (clippy and rustc will produce warnings then, though).

[9876691]

I think the below doesn't work with build.rs as the path changes based on the OUT_DIR env var which cargo supplies.

#[path = "path/to/the/generated/cornucopia/module"]
mod cornucopia;

So I wrote some code to do a search and replace on the #![...] and now it's working.

[LouisGariepy]

@ianpurton I can definitely solve this on our side, so please feel free to reopen this issue at any time if you feel like its troublesome for you. If there's a choice to make between codegen complexity and user experience, I'll always pick user experience! I just wanted to try the path method first.

[jgreenbaum]

I think it would be great if you could fix this.

[LouisGariepy]

I'll fix this as soon as possible 😃 Should be relatively quick.

[LouisGariepy]

@ianpurton @jgreenbaum

I just published a minor release that should fix this issue! Please let me know if there's still something amiss.

Thanks for making Cornucopia better!

[9876691]

@LouisGariepy Thanks. I've tried it and it works.