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Tomorrow at 3pm EST I'll be doing some live coding in @rustlang. We'll learn how to use proc_macros on stable with a little trick and use them to get compile time validation of configuration files. If you can't make it, the stream will be archived for later :Dhttps://twitter.com/mgattozzi/status/957037861299212288 …
You might be interested in this little proc_macro hack https://github.com/diesel-rs/diesel/blob/212dd17a0107e312965f2badd706ce5cfb1fdfea/diesel_derives/src/util.rs#L143-L148 … https://github.com/diesel-rs/diesel/blob/212dd17a0107e312965f2badd706ce5cfb1fdfea/diesel/src/macros/mod.rs#L1114-L1118 … It's a workaround for not being able to use `$crate` in proc-macros. We used to do `extern crate diesel;` instead of the module, but that doesn't work using in Diesel itself
Only downside is that `cargo expand` shows the code to be `mod diesel { pub use ::*; }` even for code outside of Diesel
That's unfortunate, at least most people won't need to see that output!
Oh very nice!
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