wasm-bindgen/tests/all/jsobjects.rs

use super::project;

#[test]
fn simple() {
    project()
        .file(
            "src/lib.rs",
            r#"
            #![feature(proc_macro, wasm_custom_section, wasm_import_module)]

            extern crate wasm_bindgen;

            use wasm_bindgen::prelude::*;

            #[wasm_bindgen(module = "./test")]
            extern {
                fn foo(s: &JsValue);
            }

            #[wasm_bindgen]
            pub fn bar(s: &JsValue) {
                foo(s);
            }
        "#,
        )
        .file(
            "test.ts",
            r#"
            import * as wasm from "./out";
            import * as assert from "assert";

            let ARG: string | null = null;

            export function foo(s: any): void {
                assert.strictEqual(ARG, null);
                ARG = s;
            }

            export function test() {
                assert.strictEqual(ARG, null);
                let sym = (Symbol as any)('test');
                wasm.bar(sym);
                assert.strictEqual(ARG, sym);
            }
        "#,
        )
        .test();
}

#[test]
fn owned() {
    project()
        .file(
            "src/lib.rs",
            r#"
            #![feature(proc_macro, wasm_custom_section, wasm_import_module)]

            extern crate wasm_bindgen;

            use wasm_bindgen::prelude::*;

            #[wasm_bindgen(module = "./test")]
            extern {
                fn foo(s: JsValue);
            }

            #[wasm_bindgen]
            pub fn bar(s: JsValue) {
                foo(s);
            }
        "#,
        )
        .file(
            "test.ts",
            r#"
            import * as wasm from "./out";
            import * as assert from "assert";

            let ARG: any = null;

            export function foo(s: any): void {
                assert.strictEqual(ARG, null);
                ARG = s;
            }

            export function test() {
                assert.strictEqual(ARG, null);
                let sym = (Symbol as any)('test');
                wasm.bar(sym);
                assert.strictEqual(ARG, sym);
            }
        "#,
        )
        .test();
}

#[test]
fn clone() {
    project()
        .file(
            "src/lib.rs",
            r#"
            #![feature(proc_macro, wasm_custom_section, wasm_import_module)]

            extern crate wasm_bindgen;

            use wasm_bindgen::prelude::*;

            #[wasm_bindgen(module = "./test")]
            extern {
                fn foo1(s: JsValue);
                fn foo2(s: &JsValue);
                fn foo3(s: JsValue);
                fn foo4(s: &JsValue);
                fn foo5(s: JsValue);
            }

            #[wasm_bindgen]
            pub fn bar(s: JsValue) {
                foo1(s.clone());
                foo2(&s);
                foo3(s.clone());
                foo4(&s);
                foo5(s);
            }
        "#,
        )
        .file(
            "test.ts",
            r#"
            import * as wasm from "./out";
            import * as assert from "assert";

            let ARG = (Symbol as any)('test');

            export function foo1(s: any): void { assert.strictEqual(s, ARG); }
            export function foo2(s: any): void { assert.strictEqual(s, ARG); }
            export function foo3(s: any): void { assert.strictEqual(s, ARG); }
            export function foo4(s: any): void { assert.strictEqual(s, ARG); }
            export function foo5(s: any): void { assert.strictEqual(s, ARG); }

            export function test() {
                wasm.bar(ARG);
            }
        "#,
        )
        .test();
}

#[test]
fn promote() {
    project()
        .file(
            "src/lib.rs",
            r#"
            #![feature(proc_macro, wasm_custom_section, wasm_import_module)]

            extern crate wasm_bindgen;

            use wasm_bindgen::prelude::*;

            #[wasm_bindgen(module = "./test")]
            extern {
                fn foo1(s: &JsValue);
                fn foo2(s: JsValue);
                fn foo3(s: &JsValue);
                fn foo4(s: JsValue);
            }

            #[wasm_bindgen]
            pub fn bar(s: &JsValue) {
                foo1(s);
                foo2(s.clone());
                foo3(s);
                foo4(s.clone());
            }
        "#,
        )
        .file(
            "test.ts",
            r#"
            import * as wasm from "./out";
            import * as assert from "assert";

            let ARG = (Symbol as any)('test');

            export function foo1(s: any): void { assert.strictEqual(s, ARG); }
            export function foo2(s: any): void { assert.strictEqual(s, ARG); }
            export function foo3(s: any): void { assert.strictEqual(s, ARG); }
            export function foo4(s: any): void { assert.strictEqual(s, ARG); }

            export function test() {
                wasm.bar(ARG);
            }
        "#,
        )
        .test();
}

#[test]
fn returning_vector() {
    project()
        .file(
            "src/lib.rs",
            r#"
            #![feature(proc_macro, wasm_custom_section, wasm_import_module)]

            extern crate wasm_bindgen;

            use wasm_bindgen::prelude::*;

            #[wasm_bindgen(module = "./test")]
            extern {
                fn foo() -> JsValue;
            }

            #[wasm_bindgen]
            pub fn bar() -> Vec<JsValue> {
                let mut res = Vec::new();
                for _ in 0..10 {
                    res.push(foo())
                }
                res
            }
        "#,
        )
        .file(
            "test.ts",
            r#"
            import * as wasm from "./out";
            import * as assert from "assert";

            export function foo(): any { return { "foo": "bar" }; }

            export function test() {
                const result = wasm.bar();
                assert.strictEqual(result.length, 10);
            }
        "#,
        )
        .test();
}

#[test]
fn another_vector_return() {
    project()
        .file(
            "src/lib.rs",
            r#"
            #![feature(proc_macro, wasm_custom_section, wasm_import_module)]

            extern crate wasm_bindgen;

            use wasm_bindgen::prelude::*;


            #[wasm_bindgen]
            pub fn get_array() -> Vec<JsValue> {
                vec![
                    JsValue::from(1),
                    JsValue::from(2),
                    JsValue::from(3),
                    JsValue::from(4),
                    JsValue::from(5),
                    JsValue::from(6),
                ]
            }
        "#,
        )
        .file(
            "test.ts",
            r#"
            import { get_array } from "./out";
            import * as assert from "assert";

            export function test() {
                assert.deepStrictEqual(get_array(), [1, 2, 3, 4, 5, 6]);
            }
        "#,
        )
        .test();
}

#[test]
fn serde() {
    project()
        .serde(true)
        .depend("serde = '1.0'")
        .depend("serde_derive = '1.0'")
        .file(
            "src/lib.rs",
            r#"
            #![feature(proc_macro, wasm_custom_section, wasm_import_module)]

            extern crate wasm_bindgen;
            #[macro_use]
            extern crate serde_derive;

            use wasm_bindgen::prelude::*;

            #[derive(Deserialize, Serialize)]
            pub struct Foo {
                a: u32,
                b: String,
                c: Option<Bar>,
                d: Bar,
            }

            #[derive(Deserialize, Serialize)]
            pub struct Bar {
                a: u32,
            }

            #[wasm_bindgen(module = "./test")]
            extern {
                fn verify(a: JsValue) -> JsValue;
            }

            #[wasm_bindgen]
            pub fn run() {
                let js = JsValue::from_serde("foo").unwrap();
                assert_eq!(js.as_string(), Some("foo".to_string()));

                let ret = verify(JsValue::from_serde(&Foo {
                    a: 0,
                    b: "foo".to_string(),
                    c: None,
                    d: Bar { a: 1 },
                }).unwrap());

                let foo = ret.into_serde::<Foo>().unwrap();
                assert_eq!(foo.a, 2);
                assert_eq!(foo.b, "bar");
                assert!(foo.c.is_some());
                assert_eq!(foo.c.as_ref().unwrap().a, 3);
                assert_eq!(foo.d.a, 4);
            }

            #[wasm_bindgen]
            pub fn parse(j: &JsValue) {
                let s = j.into_serde::<String>().unwrap();
                assert_eq!(s, "bar");
            }
        "#,
        )
        .file(
            "test.ts",
            r#"
            import { run, parse } from "./out";
            import * as assert from "assert";

            export function verify(a: any) {
                assert.deepStrictEqual(a, {
                    a: 0,
                    b: 'foo',
                    c: null,
                    d: { a: 1 }
                });

                return {
                    a: 2,
                    b: 'bar',
                    c: { a: 3 },
                    d: { a: 4 },
                }
            }

            export function test() {
                run();
                parse('bar');
            }
        "#,
        )
        .test();
}