Callback for custom attributes

[cloneable]

Hi!
I would like to ask if we can add a method to ParseCallback that emits custom attributes? I have a several larger enums generated by bindgen and would like to use strum::EnumString to look up variants by name, but to make it efficient I also want to add #[strum(use_phf)]. The former can be easily done, but the latter doesn't seem possible with bindgen.

Is this something you'd be open to adding to ParseCallback? I could imagine this to be useful for serde, too.

[emilio]

Probably not to ParseCallback, since it's not something that needs done during parsing? But yeah, it seems generalizing the derive API to also support other attributes seems reasonable.

[cloneable]

So, apparently, there's already support for this since 0.70.0, according to the change log:

rust-bindgen/CHANGELOG.md

Line 240 in 07bbd04

- Add support for custom attributes (--with-attribute-custom, #2866)

And the callback method can be found in the main branch:

rust-bindgen/bindgen/callbacks.rs

Lines 132 to 138 in 07bbd04

	/// Provide a list of custom attributes.
	///
	/// If no additional attributes are wanted, this function should return an
	/// empty `Vec`.
	fn add_attributes(&self, _info: &AttributeInfo<'_>) -> Vec<String> {
	vec![]
	}

But is not part of tagged version 0.70.0 and .1. That's why I couldn't find it.

Ok, I guess I will just wait for 0.71 then.