feat: report error from subplot code generation, if any

Sponsored-by: author

1 files changed, 4 insertions, 1 deletions

diff --git a/build.rs b/build.rs
index 9a45016..3eb9e1b 100644
--- a/build.rs
+++ b/build.rs
@@ -4,6 +4,9 @@ fn main() {
     lalrpop::process_root().unwrap();
     println!("built parser with larlpop successfully");
     println!("generating code with Subplot");
-    subplot_build::codegen("riki.subplot").expect("failed to generate code with Subplot");
+    if let Err(e) = subplot_build::codegen("riki.subplot") {
+        eprintln!("failed to generate code from subplot: {e}");
+        std::process::exit(1);
+    }
     println!("generated code with Subplot successfully");
 }