rust-analyzer: Does not work for attribute proc macros

rust-analyzer does not work for this file:

use serenity::{
    client::*,
    framework::standard::{macros::command, Args, CommandResult},
    model::channel::Message,
};

#[command]
fn clear(ctx: &mut Context, msg: &Message, args: Args) -> CommandResult {
    Ok(())
}

No intellisense, no completion, nothing works. I assume it’s because of command macro?

About this issue

Original URL
State: closed
Created 4 years ago
Reactions: 18
Comments: 33 (13 by maintainers)

Commits related to this issue

Merge #9128 9128: feat: expand procedural attribute macros r=jonas-schievink a=jonas-schievink This adds experimental support for attribute macros. They can be enabled by setting `rust-analyzer.expe... — committed to rust-lang/rust-analyzer by bors[bot] 3 years ago
Merge #9128 9128: feat: expand procedural attribute macros r=jonas-schievink a=jonas-schievink This adds experimental support for attribute macros. They can be enabled by setting `rust-analyzer.expe... — committed to rust-lang/rust-analyzer by bors[bot] 3 years ago

Most upvoted comments

Any plans to work on this? Is there anything blocking this?

In short, what needs to be done to get this working is:

Record derive helper attributes, so that they can later be resolved (this is just to avoid false positives from the next step) - done in https://github.com/rust-analyzer/rust-analyzer/pull/8093
Resolve attributes on items during name resolution (done in #7049, but without the above step) - implemented in https://github.com/rust-analyzer/rust-analyzer/pull/8882
- Resolve derive helpers https://github.com/rust-analyzer/rust-analyzer/pull/8898
- Support #![register_{attr,tool}] for nightly users https://github.com/rust-analyzer/rust-analyzer/pull/8900
Emit a diagnostic for unresolved attributes
Let it bake for a while and fix any false positives that come up
Change name resolution to not process items until all attached attributes are resolved (this can ignore proc. macro attributes to keep the current behavior)
When an attribute gets resolved to a proc. macro, expand it like we do for custom derives, but replacing the original item - done in https://github.com/rust-analyzer/rust-analyzer/pull/9128