Function validate_pedal_files 

pub fn validate_pedal_files(paths: &[&str])

Validate .pedal files for use in build scripts.

Reads each file, parses it, runs full validation, and prints cargo::warning= directives. Panics (failing the build) if any errors are found.

Call this from your crate’s build.rs:

// build.rs
fn main() {
    pedalkernel::compiler::validate_pedal_files(&[
        "pedals/my_overdrive.pedal",
        "pedals/my_phaser.pedal",
    ]);
}