435 lines
9.4 KiB
Rust
435 lines
9.4 KiB
Rust
#![cfg(not(feature = "no_function"))]
|
|
use rhai::{Dynamic, Engine, EvalAltResult, FnPtr, ParseErrorType, Scope, INT};
|
|
use std::any::TypeId;
|
|
use std::cell::RefCell;
|
|
use std::mem::take;
|
|
use std::rc::Rc;
|
|
|
|
#[cfg(not(feature = "no_object"))]
|
|
use rhai::Map;
|
|
|
|
#[test]
|
|
fn test_fn_ptr_curry_call() -> Result<(), Box<EvalAltResult>> {
|
|
let mut engine = Engine::new();
|
|
|
|
engine.register_raw_fn(
|
|
"call_with_arg",
|
|
[TypeId::of::<FnPtr>(), TypeId::of::<INT>()],
|
|
|context, args| {
|
|
let fn_ptr = std::mem::take(args[0]).cast::<FnPtr>();
|
|
fn_ptr.call_raw(&context, None, [std::mem::take(args[1])])
|
|
},
|
|
);
|
|
|
|
#[cfg(not(feature = "no_object"))]
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
"
|
|
let addition = |x, y| { x + y };
|
|
let curried = addition.curry(2);
|
|
|
|
call_with_arg(curried, 40)
|
|
"
|
|
)?,
|
|
42
|
|
);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(feature = "no_closure"))]
|
|
#[cfg(not(feature = "no_object"))]
|
|
fn test_closures() -> Result<(), Box<EvalAltResult>> {
|
|
let mut engine = Engine::new();
|
|
let mut scope = Scope::new();
|
|
|
|
scope.push("x", 42 as INT);
|
|
|
|
assert!(matches!(
|
|
engine
|
|
.compile_expression("|x| {}")
|
|
.expect_err("should error")
|
|
.err_type(),
|
|
ParseErrorType::BadInput(..)
|
|
));
|
|
|
|
assert_eq!(
|
|
engine.eval_with_scope::<INT>(
|
|
&mut scope,
|
|
"
|
|
let f = || { x };
|
|
f.call()
|
|
",
|
|
)?,
|
|
42
|
|
);
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
"
|
|
let foo = #{ x: 42 };
|
|
let f = || { this.x };
|
|
foo.call(f)
|
|
",
|
|
)?,
|
|
42
|
|
);
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
"
|
|
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
|
|
);
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
"
|
|
let a = 41;
|
|
let foo = |x| { a += x };
|
|
foo.call(1);
|
|
a
|
|
"
|
|
)?,
|
|
42
|
|
);
|
|
|
|
assert!(engine.eval::<bool>(
|
|
"
|
|
let a = 41;
|
|
let foo = |x| { a += x };
|
|
a.is_shared()
|
|
"
|
|
)?);
|
|
|
|
assert!(engine.eval::<bool>(
|
|
"
|
|
let a = 41;
|
|
let foo = |x| { a += x };
|
|
is_shared(a)
|
|
"
|
|
)?);
|
|
|
|
engine.register_fn("plus_one", |x: INT| x + 1);
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
"
|
|
let a = 41;
|
|
let f = || plus_one(a);
|
|
f.call()
|
|
"
|
|
)?,
|
|
42
|
|
);
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
"
|
|
let a = 40;
|
|
let f = |x| {
|
|
let f = |x| {
|
|
let f = |x| plus_one(a) + x;
|
|
f.call(x)
|
|
};
|
|
f.call(x)
|
|
};
|
|
f.call(1)
|
|
"
|
|
)?,
|
|
42
|
|
);
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
"
|
|
let a = 21;
|
|
let f = |x| a += x;
|
|
f.call(a);
|
|
a
|
|
"
|
|
)?,
|
|
42
|
|
);
|
|
|
|
engine.register_raw_fn(
|
|
"custom_call",
|
|
[TypeId::of::<INT>(), TypeId::of::<FnPtr>()],
|
|
|context, args| {
|
|
let func = take(args[1]).cast::<FnPtr>();
|
|
|
|
func.call_raw(&context, None, [])
|
|
},
|
|
);
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
"
|
|
let a = 41;
|
|
let b = 0;
|
|
let f = || b.custom_call(|| a + 1);
|
|
|
|
f.call()
|
|
"
|
|
)?,
|
|
42
|
|
);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(feature = "no_closure"))]
|
|
fn test_closures_sharing() -> Result<(), Box<EvalAltResult>> {
|
|
let mut engine = Engine::new();
|
|
|
|
engine.register_fn("foo", |x: INT, s: &str| s.len() as INT + x);
|
|
engine.register_fn("bar", |x: INT, s: String| s.len() as INT + x);
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
r#"
|
|
let s = "hello";
|
|
let f = || s;
|
|
foo(1, s)
|
|
"#
|
|
)?,
|
|
6
|
|
);
|
|
|
|
assert_eq!(
|
|
engine.eval::<String>(
|
|
r#"
|
|
let s = "hello";
|
|
let f = || s;
|
|
let n = foo(1, s);
|
|
s
|
|
"#
|
|
)?,
|
|
"hello"
|
|
);
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
r#"
|
|
let s = "hello";
|
|
let f = || s;
|
|
bar(1, s)
|
|
"#
|
|
)?,
|
|
6
|
|
);
|
|
|
|
#[cfg(not(feature = "no_object"))]
|
|
{
|
|
let mut m = Map::new();
|
|
m.insert("hello".into(), "world".into());
|
|
let m = Dynamic::from(m).into_shared();
|
|
|
|
engine.register_fn("baz", move || m.clone());
|
|
|
|
assert!(!engine.eval::<bool>(
|
|
"
|
|
let m = baz();
|
|
m.is_shared()
|
|
"
|
|
)?);
|
|
|
|
assert_eq!(
|
|
engine.eval::<String>(
|
|
"
|
|
let m = baz();
|
|
m.hello
|
|
"
|
|
)?,
|
|
"world"
|
|
);
|
|
|
|
assert_eq!(engine.eval::<String>("baz().hello")?, "world");
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(feature = "no_closure"))]
|
|
#[cfg(not(feature = "no_object"))]
|
|
#[cfg(not(feature = "sync"))]
|
|
fn test_closures_data_race() -> Result<(), Box<EvalAltResult>> {
|
|
let engine = Engine::new();
|
|
|
|
assert_eq!(
|
|
engine.eval::<INT>(
|
|
"
|
|
let a = 1;
|
|
let b = 40;
|
|
let foo = |x| { this += a + x };
|
|
b.call(foo, 1);
|
|
b
|
|
"
|
|
)?,
|
|
42
|
|
);
|
|
|
|
assert!(matches!(
|
|
*engine
|
|
.eval::<INT>(
|
|
"
|
|
let a = 20;
|
|
let foo = |x| { this += a + x };
|
|
a.call(foo, 1);
|
|
a
|
|
"
|
|
)
|
|
.expect_err("should error"),
|
|
EvalAltResult::ErrorDataRace(..)
|
|
));
|
|
|
|
Ok(())
|
|
}
|
|
|
|
type TestStruct = Rc<RefCell<INT>>;
|
|
|
|
#[test]
|
|
#[cfg(not(feature = "no_object"))]
|
|
#[cfg(not(feature = "sync"))]
|
|
fn test_closures_shared_obj() -> Result<(), Box<EvalAltResult>> {
|
|
let mut engine = Engine::new();
|
|
|
|
// Register API on TestStruct
|
|
engine
|
|
.register_type_with_name::<TestStruct>("TestStruct")
|
|
.register_get_set(
|
|
"data",
|
|
|p: &mut TestStruct| *p.borrow(),
|
|
|p: &mut TestStruct, value: INT| *p.borrow_mut() = value,
|
|
)
|
|
.register_fn("+=", |p1: &mut TestStruct, p2: TestStruct| {
|
|
*p1.borrow_mut() += *p2.borrow()
|
|
})
|
|
.register_fn("-=", |p1: &mut TestStruct, p2: TestStruct| {
|
|
*p1.borrow_mut() -= *p2.borrow()
|
|
});
|
|
|
|
let engine = engine; // Make engine immutable
|
|
|
|
let code = r#"
|
|
#{
|
|
name: "A",
|
|
description: "B",
|
|
cost: 1,
|
|
health_added: 0,
|
|
action: |p1, p2| { p1 += p2 }
|
|
}
|
|
"#;
|
|
|
|
let ast = engine.compile(code)?;
|
|
let res = engine.eval_ast::<Map>(&ast)?;
|
|
|
|
// Make closure
|
|
let f = move |p1: TestStruct, p2: TestStruct| {
|
|
let action_ptr = res["action"].clone_cast::<FnPtr>();
|
|
let name = action_ptr.fn_name();
|
|
engine.call_fn(&mut Scope::new(), &ast, name, (p1, p2))
|
|
};
|
|
|
|
// Test closure
|
|
let p1 = Rc::new(RefCell::new(41));
|
|
let p2 = Rc::new(RefCell::new(1));
|
|
|
|
f(p1.clone(), p2)?;
|
|
|
|
assert_eq!(*p1.borrow(), 42);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(feature = "no_closure"))]
|
|
fn test_closures_external() -> Result<(), Box<EvalAltResult>> {
|
|
let engine = Engine::new();
|
|
|
|
let ast = engine.compile(
|
|
r#"
|
|
let test = "hello";
|
|
|x| test + x
|
|
"#,
|
|
)?;
|
|
|
|
let fn_ptr = engine.eval_ast::<FnPtr>(&ast)?;
|
|
|
|
let f = move |x: INT| -> String { fn_ptr.call(&engine, &ast, (x,)).unwrap() };
|
|
|
|
assert_eq!(f(42), "hello42");
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(feature = "no_closure"))]
|
|
#[cfg(not(feature = "sync"))]
|
|
fn test_closures_callback() -> Result<(), Box<EvalAltResult>> {
|
|
type SingleNode = Rc<dyn Node>;
|
|
|
|
trait Node {
|
|
fn run(&self, x: INT) -> INT;
|
|
}
|
|
|
|
struct PhaserNode {
|
|
func: Box<dyn Fn(INT) -> INT>,
|
|
}
|
|
|
|
impl Node for PhaserNode {
|
|
fn run(&self, x: INT) -> INT {
|
|
(self.func)(x)
|
|
}
|
|
}
|
|
|
|
fn phaser(callback: impl Fn(INT) -> INT + 'static) -> impl Node {
|
|
PhaserNode {
|
|
func: Box::new(callback),
|
|
}
|
|
}
|
|
|
|
let mut engine = Engine::new();
|
|
|
|
let ast = Rc::new(engine.compile(
|
|
"
|
|
const FACTOR = 2;
|
|
phaser(|x| x * FACTOR)
|
|
",
|
|
)?);
|
|
|
|
let shared_engine = Rc::new(RefCell::new(Engine::new_raw()));
|
|
let engine2 = shared_engine.clone();
|
|
let ast2 = ast.clone();
|
|
|
|
engine.register_fn("phaser", move |fp: FnPtr| {
|
|
let engine = engine2.clone();
|
|
let ast = ast2.clone();
|
|
|
|
let callback = Box::new(move |x: INT| fp.call(&engine.borrow(), &ast, (x,)).unwrap());
|
|
|
|
Rc::new(phaser(callback)) as SingleNode
|
|
});
|
|
|
|
*shared_engine.borrow_mut() = engine;
|
|
|
|
let cb = shared_engine.borrow().eval_ast::<SingleNode>(&ast)?;
|
|
|
|
assert_eq!(cb.run(21), 42);
|
|
|
|
Ok(())
|
|
}
|