[Rust] macro marked as invalid

[AmjadHD]

What happened?

    /// Attribute macro used to apply derive macros.
    #[stable(feature = "rust1", since = "1.0.0")]
    #[rustc_builtin_macro]
    pub macro derive($item:item) {
        /* compiler built-in */
    }

[deathaxe]

According to https://doc.rust-lang.org/reference/keywords.html#reserved-keywords macro is a reserved but not yet used word. As such it may not be used and therefore seems to be highlighted invalid by intend.

According to https://github.com/rust-lang/rfcs/blob/master/text/1584-macros.md it is a experimental feature which is scheduled for Rust 2.0

[AmjadHD]

Ok, thanks.
should I open a ticket for this ?

[deathaxe]

This issue is already fixed in ST4134. Maybe fixed by #2305