Show docs on a function with attribute macro show signature of an expanded item inside the function

[mrnossiom]

code snippet to reproduce (repro link below):

#[tracing::instrument]
fn foobar() {
	// ↑↑ Hover or trigger docs on `foobar`

	// See how it shows:
	// `let __tracing_attr_fake_return: ()`
	// instead of function signature
	// `fn foobar()`
}

I would expect to see the function signature of fn foobar but I have the signature of tracing's macro let variable.

You can check macro expansion here : https://github.com/mrnossiom/ra-show-docs-macro/blob/main/expansion.rs

Meta

• rust-analyzer version: rust-analyzer 1.77.1 (7cf61eb 2024-03-27)
• rustc version: rustc 1.77.1 (7cf61ebde 2024-03-27)
• editor or extension: just plain LSP with helix 24.3 (2cadec0b)
• relevant settings: (none?)
• repro link: https://github.com/mrnossiom/ra-show-docs-macro