`T` 参数 | `&T` 参数 | `&mut T` 参数 | `T` 返回值 | `Option<T>` 参数 | `Option<T>` 返回值 | JavaScript 表示 |
是 | 是 | 否 | 是 | 是 | 是 | extern `Whatever` JavaScript 类/原型构造函数的实例 |
# #![allow(unused_variables)]
#fn main() {
use wasm_bindgen::prelude::*;
#[wasm_bindgen]
#[derive(Copy, Clone, Debug)]
pub enum NumberEnum {
Foo = 0,
Bar = 1,
Qux = 2,
}
#[wasm_bindgen]
#[derive(Copy, Clone, Debug)]
pub enum StringEnum {
Foo = "foo",
Bar = "bar",
Qux = "qux",
}
#[wasm_bindgen]
pub struct Struct {
pub number: NumberEnum,
pub string: StringEnum,
}
#[wasm_bindgen]
extern "C" {
pub type SomeJsType;
}
#[wasm_bindgen]
pub fn imported_type_by_value(x: SomeJsType) {
/* ... */
}
#[wasm_bindgen]
pub fn imported_type_by_shared_ref(x: &SomeJsType) {
/* ... */
}
#[wasm_bindgen]
pub fn return_imported_type() -> SomeJsType {
unimplemented!()
}
#[wasm_bindgen]
pub fn take_option_imported_type(x: Option<SomeJsType>) {
/* ... */
}
#[wasm_bindgen]
pub fn return_option_imported_type() -> Option<SomeJsType> {
unimplemented!()
}
#}
import {
imported_type_by_value,
imported_type_by_shared_ref,
return_imported_type,
take_option_imported_type,
return_option_imported_type,
} from './guide_supported_types_examples';
imported_type_by_value(new SomeJsType());
imported_type_by_shared_ref(new SomeJsType());
let x = return_imported_type();
console.log(x instanceof SomeJsType); // true
take_option_imported_type(null);
take_option_imported_type(undefined);
take_option_imported_type(new SomeJsType());
let y = return_option_imported_type();
if (y == null) {
// ...
} else {
console.log(y instanceof SomeJsType); // true
}