E0425: not found in this scope for name in certain rules

[xiaket]

Describe the bug

A same name that has been imported via super::* is available for some test cases but not for others, raising an E0425: not found in this scope error.

To Reproduce

# rep.pest
name = { (ASCII_ALPHA | "_") ~ (ASCII_ALPHANUMERIC | "_" | "-")* }

pipe = { command ~ ("|" ~ pipe)? }
command = { simple_command }
simple_command = { name }

# main.rs
extern crate pest;
#[macro_use]
extern crate pest_derive;

#[derive(Parser)]
#[grammar = "rep.pest"]
pub struct MyParser;


pub fn main() {
    println!("Hello");
}


#[cfg(test)]
mod tests {
    use super::*;
    use pest::parses_to;
    use pest::consumes_to;

    #[test]
    fn test_1() {
        parses_to! {
            parser: MyParser,
            input: "ls",
            rule: Rule::simple_command,
            tokens: [
                simple_command(
                    0, 2, [
                    name(0, 2)
                ])
            ]
        };
    }

    #[test]
    fn test_2() {
        parses_to! {
            parser: MyParser,
            input: "ls | wc",
            rule: Rule::pipe,
            tokens: [
                pipe( 0, 10, [
                    command( 2, 4, [
                        simple_command(2, 4, [
                            name(2, 4)
                        ]),
                    ]),
                    pipe(8, 10, [
                        command(8, 10, [
                            simple_command(8, 10 [
                                name(8, 10)
                            ])
                        ]),
                    ]),
                ])
            ]
        };
    }
}

Expected behavior

Expected behavior is both case should at least compile and run, as all the names used in test_2 are available in the grammar file. However, when running cargo test, it is raising an E0425 for me:

error[E0425]: cannot find function `name` in this scope
  --> src/main.rs:52:33
   |
52 | ...                   name(8, 10)
   |                       ^^^^ not found in this scope
   |
help: consider importing this unit variant
   |
17 |     use crate::Rule::name;
   |

Which is interesting, in that if you completely remove test_2, test_1 compiles and runs, and that test contains the same name. Moreover, if you remove the second token(starting with pipe(8, 10)) from test_2, leaving only one token(starting with command( 2, 4) in the tokens list, the test will compile and run(it will fail which is expected).

My suspicion is this is caused by the nested rule in the grammar file(pipe = { command ~ ("|" ~ pipe)? }), but I'm not that good at rust to dig it out yet.

Additional context

rustc --version
rustc 1.64.0 (a55dd71d5 2022-09-19)

Grateful for this wonderful tool, so much fun to play with! :)

[tomtau]

it seems there's a missing comma in test2 -- when this line:

...
                            simple_command(8, 10 [
...

is changed to:

...
                            simple_command(8, 10, [
...

it will compile and run

[xiaket]

Thanks @tomtau for spotting my silly mistake! How unexpected!