rhai/codegen/tests/test_nested.rs

use rhai::module_resolvers::*;
use rhai::{Array, Engine, EvalAltResult, RegisterFn, FLOAT, INT};

pub mod one_fn_module_nested_attr {
    use rhai::plugin::*;

    #[export_module]
    pub mod advanced_math {
        use rhai::plugin::*;
        use rhai::FLOAT;

        #[rhai_fn(return_raw)]
        pub fn get_mystic_number() -> Result<Dynamic, Box<EvalAltResult>> {
            Ok(Dynamic::from(42.0 as FLOAT))
        }
    }
}

#[test]
fn one_fn_module_nested_attr_test() -> Result<(), Box<EvalAltResult>> {
    let mut engine = Engine::new();
    let m = rhai::exported_module!(crate::one_fn_module_nested_attr::advanced_math);
    let mut r = StaticModuleResolver::new();
    r.insert("Math::Advanced".to_string(), m);
    engine.set_module_resolver(Some(r));

    assert_eq!(
        engine.eval::<FLOAT>(
            r#"import "Math::Advanced" as math;
           let m = math::get_mystic_number();
           m"#
        )?,
        42.0
    );
    Ok(())
}

pub mod one_fn_submodule_nested_attr {
    use rhai::plugin::*;

    #[export_module]
    pub mod advanced_math {
        #[rhai_mod(name = "constants")]
        pub mod my_module {
            use rhai::plugin::*;
            use rhai::FLOAT;
            #[rhai_fn(return_raw)]
            pub fn get_mystic_number() -> Result<Dynamic, Box<EvalAltResult>> {
                Ok(Dynamic::from(42.0 as FLOAT))
            }
        }
    }
}

#[test]
fn one_fn_submodule_nested_attr_test() -> Result<(), Box<EvalAltResult>> {
    let mut engine = Engine::new();
    let m = rhai::exported_module!(crate::one_fn_submodule_nested_attr::advanced_math);
    let mut r = StaticModuleResolver::new();
    r.insert("Math::Advanced".to_string(), m);
    engine.set_module_resolver(Some(r));

    assert_eq!(
        engine.eval::<FLOAT>(
            r#"import "Math::Advanced" as math;
           let m = math::constants::get_mystic_number();
           m"#
        )?,
        42.0
    );
    Ok(())
}

mod export_nested_by_prefix {
    use rhai::plugin::*;
    #[export_module(export_prefix = "foo_")]

    pub mod my_adds {
        pub mod foo_first_adders {
            use rhai::{FLOAT, INT};

            pub fn add_float(f1: FLOAT, f2: FLOAT) -> FLOAT {
                f1 + f2
            }

            pub fn add_int(i1: INT, i2: INT) -> INT {
                i1 + i2
            }
        }

        pub mod foo_second_adders {
            use rhai::{FLOAT, INT};

            pub fn add_float(f1: FLOAT, f2: FLOAT) -> FLOAT {
                f1 + f2
            }

            pub fn add_int(i1: INT, i2: INT) -> INT {
                i1 + i2
            }
        }

        #[rhai_mod(name = "foo_third_adders")]
        pub mod baz_third_adders {
            use rhai::{FLOAT, INT};

            pub fn add_float(f1: FLOAT, f2: FLOAT) -> FLOAT {
                f1 + f2
            }

            pub fn add_int(i1: INT, i2: INT) -> INT {
                i1 + i2
            }
        }

        pub mod bar_fourth_adders {
            use rhai::{FLOAT, INT};

            pub fn add_float(f1: FLOAT, f2: FLOAT) -> FLOAT {
                f1 + f2
            }

            pub fn add_int(i1: INT, i2: INT) -> INT {
                i1 + i2
            }
        }
    }
}

#[test]
fn export_nested_by_prefix_test() -> Result<(), Box<EvalAltResult>> {
    let mut engine = Engine::new();
    let m = rhai::exported_module!(crate::export_nested_by_prefix::my_adds);
    let mut r = StaticModuleResolver::new();
    r.insert("Math::Advanced".to_string(), m);
    engine.set_module_resolver(Some(r));

    let output_array = engine.eval::<Array>(
        r#"import "Math::Advanced" as math;
       let ex = 41.0;
       let fx = math::foo_first_adders::add_float(ex, 1.0);

       let ei = 41;
       let fi = math::foo_first_adders::add_int(ei, 1);

       let gx = 41.0;
       let hx = math::foo_second_adders::add_float(gx, 1.0);

       let gi = 41;
       let hi = math::foo_second_adders::add_int(gi, 1);

       [fx, hx, fi, hi]
       "#,
    )?;
    assert_eq!(&output_array[0].as_float().unwrap(), &42.0);
    assert_eq!(&output_array[1].as_float().unwrap(), &42.0);
    assert_eq!(&output_array[2].as_int().unwrap(), &42);
    assert_eq!(&output_array[3].as_int().unwrap(), &42);

    assert!(matches!(*engine.eval::<FLOAT>(
        r#"import "Math::Advanced" as math;
       let ex = 41.0;
       let fx = math::foo_third_adders::add_float(ex, 1.0);
       fx
       "#).unwrap_err(),
       EvalAltResult::ErrorFunctionNotFound(s, p)
            if s == "math::foo_third_adders::add_float (f64, f64)"
            && p == rhai::Position::new(3, 41)));

    assert!(matches!(*engine.eval::<FLOAT>(
        r#"import "Math::Advanced" as math;
       let ex = 41;
       let fx = math::foo_third_adders::add_int(ex, 1);
       fx
       "#).unwrap_err(),
       EvalAltResult::ErrorFunctionNotFound(s, p)
            if s == "math::foo_third_adders::add_int (i64, i64)"
            && p == rhai::Position::new(3, 41)));

    assert!(matches!(*engine.eval::<FLOAT>(
        r#"import "Math::Advanced" as math;
       let ex = 41;
       let fx = math::bar_fourth_adders::add_int(ex, 1);
       fx
       "#).unwrap_err(),
       EvalAltResult::ErrorFunctionNotFound(s, p)
            if s == "math::bar_fourth_adders::add_int (i64, i64)"
            && p == rhai::Position::new(3, 42)));


    assert!(matches!(*engine.eval::<FLOAT>(
        r#"import "Math::Advanced" as math;
       let ex = 41.0;
       let fx = math::bar_fourth_adders::add_float(ex, 1.0);
       fx
       "#).unwrap_err(),
       EvalAltResult::ErrorFunctionNotFound(s, p)
            if s == "math::bar_fourth_adders::add_float (f64, f64)"
            && p == rhai::Position::new(3, 42)));

    Ok(())
}