error: no rules expected the token `tmpl` about horrorshow-rs HOT 6 CLOSED

You're missing a semicolon before @ if nabar_drawer (what, you wanted a nice error message?). In the past, issuing compiler errors from macros was impossible so I didn't even bother trying to handle error cases nicely but that has since changed with the introduction of the compile_error macro so I'll open an issue for sane errors.

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#18

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Thank you that fixed it, I though I got all those. I also never knew that macros couldn't have error handling, but yes having any type of error handling would be nice other than the 'it failed' kind it has now.

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They can now but it's still very difficult. For example, there's no way to get the line on which a token occurs in a macro (as far as I know at least).

Note: This only applies to declarative macros (like horrorshow). Procedural macros are a lot more flexible (they're just procedural code).

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Perhaps it could be done by the render, like it walks through and if it finds something that breaks then it takes note of it and logs it.

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Unfortunately not. That happens at run-time but macro syntax errors happen at compile time.

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