rhai/tests/build_type.rs

119 lines
2.5 KiB
Rust

use rhai::{CustomType, Engine, EvalAltResult, Position, TypeBuilder};
#[test]
fn build_type() -> Result<(), Box<EvalAltResult>> {
#[derive(Debug, Clone, PartialEq)]
struct Vec3 {
x: i64,
y: i64,
z: i64,
}
impl Vec3 {
fn new(x: i64, y: i64, z: i64) -> Self {
Self { x, y, z }
}
fn get_x(&mut self) -> i64 {
self.x
}
fn set_x(&mut self, x: i64) {
self.x = x
}
fn get_y(&mut self) -> i64 {
self.y
}
fn set_y(&mut self, y: i64) {
self.y = y
}
fn get_z(&mut self) -> i64 {
self.z
}
fn set_z(&mut self, z: i64) {
self.z = z
}
fn get_component(&mut self, idx: i64) -> Result<i64, Box<EvalAltResult>> {
match idx {
0 => Ok(self.x),
1 => Ok(self.y),
2 => Ok(self.z),
_ => Err(Box::new(EvalAltResult::ErrorIndexNotFound(
idx.into(),
Position::NONE,
))),
}
}
}
impl CustomType for Vec3 {
fn build(mut builder: TypeBuilder<Self>) {
builder
.with_name("Vec3")
.with_fn("vec3", Self::new)
.with_get_set("x", Self::get_x, Self::set_x)
.with_get_set("y", Self::get_y, Self::set_y)
.with_get_set("z", Self::get_z, Self::set_z)
.with_indexer_get_result(Self::get_component);
}
}
let mut engine = Engine::new();
engine.build_type::<Vec3>();
assert_eq!(
engine.eval::<Vec3>(
r#"
let v = vec3(1, 2, 3);
v
"#,
)?,
Vec3::new(1, 2, 3),
);
assert_eq!(
engine.eval::<i64>(
r#"
let v = vec3(1, 2, 3);
v.x
"#,
)?,
1,
);
assert_eq!(
engine.eval::<i64>(
r#"
let v = vec3(1, 2, 3);
v.y
"#,
)?,
2,
);
assert_eq!(
engine.eval::<i64>(
r#"
let v = vec3(1, 2, 3);
v.z
"#,
)?,
3,
);
assert!(engine.eval::<bool>(
r#"
let v = vec3(1, 2, 3);
v.x == v[0] && v.y == v[1] && v.z == v[2]
"#,
)?);
assert_eq!(
engine.eval::<Vec3>(
r#"
let v = vec3(1, 2, 3);
v.x = 5;
v.y = 6;
v.z = 7;
v
"#,
)?,
Vec3::new(5, 6, 7),
);
Ok(())
}