Provide a way to directly write newlines and comments

[sdroege]

Currently this is possible only by storing proc_macro2::Punct in a variable and interpolating that into a quote! { ... } block. It would be nice have a nicer way for this.

While functionally it doesn't make any difference, it could make the generated code more readable for debugging purposes and also allows to use quote as a general code generation mechanism outside of proc macros.

[dtolnay]

I would prefer not to build this into quote, but there is room in the ecosystem for a different library geared toward this use case.

FWIW https://github.com/dtolnay/syn/blob/1.0.19/src/gen/fold.rs is produced using quote, including newlines and doc comments so it's possible to use as a general code generation mechanism outside of proc macros.

[sdroege]

Fair enough. That code you pasted there shows the exact problem though: densely packed without any empty lines between things, not readable at all :)

I'll continue to interpolate newlines into quote! { ... } blocks then for the meantime, it's not worth creating a new macro around quote just for this.