394 lines
9.8 KiB
Rust
394 lines
9.8 KiB
Rust
#![cfg(not(feature = "no_object"))]
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use rhai::{Engine, EvalAltResult, Scope, INT};
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#[test]
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fn test_get_set() -> Result<(), Box<EvalAltResult>> {
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#[derive(Clone)]
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struct TestStruct {
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x: INT,
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y: INT,
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array: Vec<INT>,
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}
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impl TestStruct {
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fn get_x(&mut self) -> INT {
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self.x
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}
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fn set_x(&mut self, new_x: INT) {
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self.x = new_x;
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}
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fn get_y(&mut self) -> INT {
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self.y
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}
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fn new() -> Self {
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Self {
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x: 1,
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y: 0,
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array: vec![1, 2, 3, 4, 5],
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}
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}
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}
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let mut engine = Engine::new();
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engine.register_type::<TestStruct>();
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engine.register_get_set("x", TestStruct::get_x, TestStruct::set_x);
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engine.register_get("y", TestStruct::get_y);
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engine.register_fn("add", |value: &mut INT| *value += 41);
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engine.register_fn("new_ts", TestStruct::new);
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assert_eq!(engine.eval::<INT>("let a = new_ts(); a.x = 500; a.x")?, 500);
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assert_eq!(engine.eval::<INT>("let a = new_ts(); a.x.add(); a.x")?, 42);
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assert_eq!(engine.eval::<INT>("let a = new_ts(); a.y.add(); a.y")?, 0);
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engine.register_indexer_get_set(
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|value: &mut TestStruct, index: &str| value.array[index.len()],
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|value: &mut TestStruct, index: &str, new_val: INT| value.array[index.len()] = new_val,
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);
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#[cfg(not(feature = "no_index"))]
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assert_eq!(engine.eval::<INT>(r#"let a = new_ts(); a["abc"]"#)?, 4);
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#[cfg(not(feature = "no_index"))]
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assert_eq!(
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engine.eval::<INT>(r#"let a = new_ts(); a["abc"] = 42; a["abc"]"#)?,
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42
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);
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assert_eq!(engine.eval::<INT>(r"let a = new_ts(); a.abc")?, 4);
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assert_eq!(
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engine.eval::<INT>(r"let a = new_ts(); a.abc = 42; a.abc")?,
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42
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);
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Ok(())
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}
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#[test]
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fn test_get_set_chain_with_write_back() -> Result<(), Box<EvalAltResult>> {
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#[derive(Clone)]
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struct TestChild {
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x: INT,
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}
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impl TestChild {
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fn get_x(&mut self) -> INT {
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self.x
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}
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fn set_x(&mut self, new_x: INT) {
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self.x = new_x;
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}
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fn new() -> TestChild {
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TestChild { x: 1 }
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}
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}
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#[derive(Clone)]
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struct TestParent {
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child: TestChild,
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}
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impl TestParent {
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fn get_child(&mut self) -> TestChild {
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self.child.clone()
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}
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fn set_child(&mut self, new_child: TestChild) {
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self.child = new_child;
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}
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fn new() -> TestParent {
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TestParent {
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child: TestChild::new(),
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}
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}
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}
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let mut engine = Engine::new();
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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);
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engine.register_get_set("child", TestParent::get_child, TestParent::set_child);
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#[cfg(not(feature = "no_index"))]
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engine.register_indexer_get_set(
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|parent: &mut TestParent, _: INT| parent.child.clone(),
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|parent: &mut TestParent, n: INT, mut new_child: TestChild| {
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new_child.x *= n;
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parent.child = new_child;
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},
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);
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engine.register_fn("new_tp", TestParent::new);
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engine.register_fn("new_tc", TestChild::new);
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assert_eq!(engine.eval::<INT>("let a = new_tp(); a.child.x")?, 1);
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assert_eq!(
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engine.eval::<INT>("let a = new_tp(); a.child.x = 42; a.child.x")?,
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42
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);
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assert_eq!(
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engine.eval::<String>("let a = new_tp(); type_of(a)")?,
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"TestParent"
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);
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#[cfg(not(feature = "no_index"))]
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assert_eq!(
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engine.eval::<INT>("let a = new_tp(); let c = new_tc(); c.x = 123; a[2] = c; a.child.x")?,
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246
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);
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#[cfg(not(feature = "no_index"))]
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assert_eq!(
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engine.eval::<INT>("let a = new_tp(); a[2].x = 42; a.child.x")?,
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84
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);
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Ok(())
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}
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#[test]
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fn test_get_set_op_assignment() -> Result<(), Box<EvalAltResult>> {
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#[derive(Clone, Debug, Eq, PartialEq)]
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struct Num(INT);
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impl Num {
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fn get(&mut self) -> INT {
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self.0
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}
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fn set(&mut self, x: INT) {
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self.0 = x;
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}
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}
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let mut engine = Engine::new();
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engine
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.register_type::<Num>()
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.register_fn("new_ts", || Num(40))
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.register_get_set("v", Num::get, Num::set);
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assert_eq!(
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engine.eval::<Num>("let a = new_ts(); a.v = a.v + 2; a")?,
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Num(42)
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);
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assert_eq!(
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engine.eval::<Num>("let a = new_ts(); a.v += 2; a")?,
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Num(42)
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);
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Ok(())
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}
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#[test]
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fn test_get_set_chain_without_write_back() -> Result<(), Box<EvalAltResult>> {
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#[derive(Debug, Clone)]
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struct Outer {
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pub inner: Inner,
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}
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#[derive(Debug, Clone)]
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struct Inner {
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pub value: INT,
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}
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let mut engine = Engine::new();
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let mut scope = Scope::new();
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scope.push(
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"outer",
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Outer {
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inner: Inner { value: 42 },
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},
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);
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engine
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.register_type::<Inner>()
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.register_get_set(
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"value",
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|t: &mut Inner| t.value,
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|_: &mut Inner, new: INT| panic!("Inner::value setter called with {}", new),
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)
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.register_type::<Outer>()
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.register_get_set(
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"inner",
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|t: &mut Outer| t.inner.clone(),
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|_: &mut Outer, new: Inner| panic!("Outer::inner setter called with {:?}", new),
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);
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#[cfg(not(feature = "no_index"))]
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engine.register_indexer_get_set(
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|t: &mut Outer, n: INT| Inner {
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value: t.inner.value * n,
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},
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|_: &mut Outer, n: INT, new: Inner| {
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panic!("Outer::inner index setter called with {} and {:?}", n, new)
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},
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);
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assert_eq!(
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engine.eval_with_scope::<INT>(&mut scope, "outer.inner.value")?,
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42
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);
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#[cfg(not(feature = "no_index"))]
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assert_eq!(
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engine.eval_with_scope::<INT>(&mut scope, "outer[2].value")?,
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84
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);
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engine.run_with_scope(&mut scope, "print(outer.inner.value)")?;
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#[cfg(not(feature = "no_index"))]
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engine.run_with_scope(&mut scope, "print(outer[0].value)")?;
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Ok(())
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}
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#[test]
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fn test_get_set_collection() -> Result<(), Box<EvalAltResult>> {
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type MyItem = INT;
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type MyBag = std::collections::BTreeSet<MyItem>;
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let mut engine = Engine::new();
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engine
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.register_type_with_name::<MyBag>("MyBag")
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.register_iterator::<MyBag>()
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.register_fn("new_bag", || MyBag::new())
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.register_fn("len", |col: &mut MyBag| col.len() as INT)
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.register_get("len", |col: &mut MyBag| col.len() as INT)
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.register_fn("clear", |col: &mut MyBag| col.clear())
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.register_fn("contains", |col: &mut MyBag, item: INT| col.contains(&item))
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.register_fn("add", |col: &mut MyBag, item: MyItem| col.insert(item))
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.register_fn("+=", |col: &mut MyBag, item: MyItem| col.insert(item))
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.register_fn("remove", |col: &mut MyBag, item: MyItem| col.remove(&item))
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.register_fn("-=", |col: &mut MyBag, item: MyItem| col.remove(&item))
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.register_fn("+", |mut col1: MyBag, col2: MyBag| {
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col1.extend(col2.into_iter());
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col1
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});
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let result = engine.eval::<INT>(
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"
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let bag = new_bag();
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bag += 1;
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bag += 2;
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bag += 39;
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bag -= 2;
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if !bag.contains(2) {
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let sum = 0;
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for n in bag { sum += n; }
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sum + bag.len
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} else {
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-1
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}
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",
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)?;
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assert_eq!(result, 42);
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Ok(())
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}
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#[cfg(not(feature = "no_index"))]
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#[test]
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fn test_get_set_indexer() -> Result<(), Box<EvalAltResult>> {
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type MyMap = std::collections::BTreeMap<String, INT>;
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let mut engine = Engine::new();
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engine
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.register_type_with_name::<MyMap>("MyMap")
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.register_fn("new_map", || MyMap::new())
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.register_indexer_get_result(|map: &mut MyMap, index: &str| {
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map.get(index)
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.cloned()
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.ok_or_else(|| format!("Index `{}` not found!", index).into())
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})
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.register_indexer_set(|map: &mut MyMap, index: &str, value: INT| {
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map.insert(index.to_string(), value);
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})
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.register_fn("to_string", |map: &mut MyMap| format!("{:?}", map));
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assert_eq!(
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engine.eval::<INT>(
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r#"
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let my_map = new_map();
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my_map["eggs"] = 42;
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my_map["eggs"]
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"#,
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)?,
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42
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);
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assert_eq!(
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engine.eval::<INT>(
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r#"
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let my_map = new_map();
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my_map["eggs"] = 41;
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my_map["eggs"] = my_map["eggs"] + 1;
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my_map["eggs"]
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"#,
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)?,
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42
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);
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assert_eq!(
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engine.eval::<INT>(
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r#"
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let my_map = new_map();
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my_map["eggs"] = 41;
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my_map["eggs"] += 1;
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my_map["eggs"]
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"#,
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)?,
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42
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);
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assert!(engine
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.eval::<INT>(
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r#"
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let my_map = new_map();
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my_map["eggs"] = 42;
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my_map["not_found"]
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"#,
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)
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.is_err());
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assert_eq!(
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engine.eval::<INT>(
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r#"
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let my_map = new_map();
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my_map["eggs"] = 42;
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try {
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let eggs = my_map["eggs"];
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let eggs = my_map["not found"];
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}
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catch(x)
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{
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print("Not found!");
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}
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my_map["eggs"]
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"#,
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)?,
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42
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);
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Ok(())
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}
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