reorganize module

_archive/rhai_engine/rhaiexamples/simple_fn.rs

@@ -0,0 +1,19 @@
+//! An example showing how to register a simple Rust function.
+
+use rhai::{Engine, EvalAltResult};
+
+fn add(x: i64, y: i64) -> i64 {
+    x + y
+}
+
+fn main() -> Result<(), Box<EvalAltResult>> {
+    let mut engine = Engine::new();
+
+    engine.register_fn("add", add);
+
+    let result = engine.eval::<i64>("add(40, 2)")?;
+
+    println!("Answer: {result}"); // prints 42
+
+    Ok(())
+}