use rhai::{Engine, EvalAltResult, RegisterFn, INT}; #[test] fn test_fn_ptr() -> Result<(), Box> { let mut engine = Engine::new(); engine.register_fn("bar", |x: &mut INT, y: INT| *x += y); #[cfg(not(feature = "no_object"))] assert_eq!( engine.eval::( r#" let f = Fn("bar"); let x = 40; f.call(x, 2); x "# )?, 40 ); #[cfg(not(feature = "no_object"))] assert_eq!( engine.eval::( r#" let f = Fn("bar"); let x = 40; x.call(f, 2); x "# )?, 42 ); assert_eq!( engine.eval::( r#" let f = Fn("bar"); let x = 40; call(f, x, 2); x "# )?, 42 ); #[cfg(not(feature = "no_function"))] #[cfg(not(feature = "no_object"))] assert_eq!( engine.eval::( r#" fn foo(x) { this += x; } let f = Fn("foo"); let x = 40; x.call(f, 2); x "# )?, 42 ); #[cfg(not(feature = "no_function"))] assert!(matches!( *engine .eval::( r#" fn foo(x) { this += x; } let f = Fn("foo"); call(f, 2); x "# ) .expect_err("should error"), EvalAltResult::ErrorInFunctionCall(fn_name, err, _) if fn_name == "foo" && matches!(*err, EvalAltResult::ErrorUnboundedThis(_)) )); Ok(()) }