Rust 2018: an early preview

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61

I like the changes to macros in module system, as someone already wrote above this will syntax will be pretty, (both foo and bar extern crates)

use foo::foo!;
use bar::{bar!, zoo!};

One thing may be inconsistent (in my opinion) is that for submodules we still need to use #[macro_use], it will be better to extents syntax for external crates for submodules.

In our crate, we have a zoo submodule with #[macro_export], the above syntax is consistent.

use zoo::{zoo!, copy!};

This even leads to re-exports for libs, being able to re-export their macros in a simplified prelude.

pub mod prelude {
    pub use macros::{scr!, link!};
    /* ... */
}
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