"lalrpop_mod" error

help
1

I've a workspace with this source tree:

  • crates
    • parser
      • parser
        • css_parser.rs
        • css.lalrpop
        • ...
      • lib.rs
    • ...
  • Cargo.toml (workspace)

css_parser.rs contents:

use lalrpop_util::lalrpop_mod;

lalrpop_mod!(pub css, "/crates/parser/parser/css.rs");

I've tried different ways of writing this macro call, but I keep getting:

couldn't read C:\...\as3parser\target\debug\build\as3_parser-d8abfab424abcc27\out/crates/parser/parser/css.rs:
The system cannot find the path specified.
3

When you build the project, look for css.rs in target. Then adjust the path so it points there.

Edit: you could run tree "C:\...\as3parser\target\debug\build\as3_parser-d8abfab424abcc27\out" in a cmd prompt to see what's inside.

1 Like
4

Hm, there's no css.rs in target after a recursive search. (It'd be difficult too, since there are debug and release directories).

I'm currently getting an auto generated css.rs from LALRPOP in the same directory as css_parser.rs.

I've run that tree command you mentioned and got empty output.

5

That sounds like a very badly behaved proc macro from lalrpop. Could you share the full code or at least your dependencies and any calls to macros from the lalrpop crate?

6

Or do you have your own build script?

7

Since it's an open-source project, I'll share the repository, although quite a bit large:

It does have that build script:

fn main() {
    lalrpop::process_root().unwrap();
}
8

Sorry, I had not provided a MRP

9

You can configure the generator to use a different output folder. I've submitted a pull request with the needed changes: fix build script by jendrikw · Pull Request #1 · hydroper/as3parser · GitHub

1 Like
10

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