protocol: generate workspace TypeScript types

crates/protocol/examples/generate_typescript.rs

@@ -0,0 +1,16 @@
+#[cfg(feature = "typescript")]
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let path = protocol::typescript::generated_typescript_path();
+    if let Some(parent) = path.parent() {
+        std::fs::create_dir_all(parent)?;
+    }
+    std::fs::write(&path, protocol::typescript::generated_protocol_types())?;
+    println!("wrote {}", path.display());
+    Ok(())
+}
+
+#[cfg(not(feature = "typescript"))]
+fn main() {
+    eprintln!("enable the `typescript` feature to generate protocol TypeScript bindings");
+    std::process::exit(2);
+}