rhai/tests/get_set.rs

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#![cfg(not(feature = "no_object"))]
use rhai::{Engine, EvalAltResult, RegisterFn, INT};
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#[test]
fn test_get_set() -> Result<(), Box<EvalAltResult>> {
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#[derive(Clone)]
struct TestStruct {
x: INT,
y: INT,
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}
impl TestStruct {
fn get_x(&mut self) -> INT {
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self.x
}
fn set_x(&mut self, new_x: INT) {
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self.x = new_x;
}
fn get_y(&mut self) -> INT {
self.y
}
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fn new() -> Self {
TestStruct { x: 1, y: 0 }
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}
}
let mut engine = Engine::new();
engine.register_type::<TestStruct>();
engine.register_get_set("x", TestStruct::get_x, TestStruct::set_x);
engine.register_get("y", TestStruct::get_y);
engine.register_fn("add", |value: &mut INT| *value += 41);
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engine.register_fn("new_ts", TestStruct::new);
assert_eq!(engine.eval::<INT>("let a = new_ts(); a.x = 500; a.x")?, 500);
assert_eq!(engine.eval::<INT>("let a = new_ts(); a.x.add(); a.x")?, 42);
assert_eq!(engine.eval::<INT>("let a = new_ts(); a.y.add(); a.y")?, 0);
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Ok(())
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}
#[test]
fn test_big_get_set() -> Result<(), Box<EvalAltResult>> {
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#[derive(Clone)]
struct TestChild {
x: INT,
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}
impl TestChild {
fn get_x(&mut self) -> INT {
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self.x
}
fn set_x(&mut self, new_x: INT) {
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self.x = new_x;
}
fn new() -> TestChild {
TestChild { x: 1 }
}
}
#[derive(Clone)]
struct TestParent {
child: TestChild,
}
impl TestParent {
fn get_child(&mut self) -> TestChild {
self.child.clone()
}
fn set_child(&mut self, new_child: TestChild) {
self.child = new_child;
}
fn new() -> TestParent {
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TestParent {
child: TestChild::new(),
}
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}
}
let mut engine = Engine::new();
engine.register_type::<TestChild>();
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engine.register_type_with_name::<TestParent>("TestParent");
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engine.register_get_set("x", TestChild::get_x, TestChild::set_x);
engine.register_get_set("child", TestParent::get_child, TestParent::set_child);
engine.register_fn("new_tp", TestParent::new);
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assert_eq!(
engine.eval::<INT>("let a = new_tp(); a.child.x = 500; a.child.x")?,
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500
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);
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assert_eq!(
engine.eval::<String>("let a = new_tp(); type_of(a)")?,
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"TestParent"
);
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Ok(())
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}