rhai/tests/closures.rs
2020-08-02 18:55:22 +08:00

61 lines
1.4 KiB
Rust

#![cfg(not(feature = "no_function"))]
use rhai::{Dynamic, Engine, EvalAltResult, FnPtr, Module, INT};
use std::any::TypeId;
#[test]
fn test_fn_ptr_curry_call() -> Result<(), Box<EvalAltResult>> {
let mut module = Module::new();
module.set_raw_fn(
"call_with_arg",
&[TypeId::of::<FnPtr>(), TypeId::of::<INT>()],
|engine: &Engine, lib: &Module, args: &mut [&mut Dynamic]| {
let fn_ptr = std::mem::take(args[0]).cast::<FnPtr>();
fn_ptr.call_dynamic(engine, lib, None, [std::mem::take(args[1])])
},
);
let mut engine = Engine::new();
engine.load_package(module);
#[cfg(not(feature = "no_object"))]
assert_eq!(
engine.eval::<INT>(
r#"
let addition = |x, y| { x + y };
let curried = addition.curry(2);
call_with_arg(curried, 40)
"#
)?,
42
);
Ok(())
}
#[test]
#[cfg(not(feature = "no_capture"))]
fn test_closures() -> Result<(), Box<EvalAltResult>> {
let engine = Engine::new();
assert_eq!(
engine.eval::<INT>(
r#"
let x = 8;
let res = |y, z| {
let w = 12;
return (|| x + y + z + w).call();
}.curry(15).call(2);
res + (|| x - 3).call()
"#
)?,
42
);
Ok(())
}