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use wasm_bindgen::prelude::*;
use wasm_bindgen::JsCast;
use wasm_bindgen_test::*;
#[wasm_bindgen(module = "tests/wasm/jscast.js")]
extern "C" {
type JsCast1;
#[wasm_bindgen(constructor)]
fn new() -> JsCast1;
#[wasm_bindgen(method)]
fn myval(this: &JsCast1) -> u32;
type JsCast2;
#[wasm_bindgen(constructor)]
fn new() -> JsCast2;
#[wasm_bindgen(extends = JsCast1)]
type JsCast3;
#[wasm_bindgen(constructor)]
fn new() -> JsCast3;
#[wasm_bindgen(extends = crate::jscast::JsCast1, extends = JsCast3)]
type JsCast4;
#[wasm_bindgen(constructor)]
fn new() -> JsCast4;
}
#[wasm_bindgen_test]
fn instanceof_works() {
let a = JsCast1::new();
let b = JsCast2::new();
let c = JsCast3::new();
assert!(a.is_instance_of::<JsCast1>());
assert!(!a.is_instance_of::<JsCast2>());
assert!(!a.is_instance_of::<JsCast3>());
assert!(!b.is_instance_of::<JsCast1>());
assert!(b.is_instance_of::<JsCast2>());
assert!(!b.is_instance_of::<JsCast3>());
assert!(c.is_instance_of::<JsCast1>());
assert!(!c.is_instance_of::<JsCast2>());
assert!(c.is_instance_of::<JsCast3>());
}
#[wasm_bindgen_test]
fn casting() {
let a = JsCast1::new();
let b = JsCast2::new();
let c = JsCast3::new();
assert!(a.dyn_ref::<JsCast1>().is_some());
assert!(a.dyn_ref::<JsCast2>().is_none());
assert!(a.dyn_ref::<JsCast3>().is_none());
assert!(b.dyn_ref::<JsCast1>().is_none());
assert!(b.dyn_ref::<JsCast2>().is_some());
assert!(b.dyn_ref::<JsCast3>().is_none());
assert!(c.dyn_ref::<JsCast1>().is_some());
assert!(c.dyn_ref::<JsCast2>().is_none());
assert!(c.dyn_ref::<JsCast3>().is_some());
}
#[wasm_bindgen_test]
fn method_calling() {
let a = JsCast1::new();
let b = JsCast3::new();
assert_eq!(a.myval(), 1);
assert_eq!(b.dyn_ref::<JsCast1>().unwrap().myval(), 3);
assert_eq!(b.unchecked_ref::<JsCast1>().myval(), 3);
let c: &JsCast1 = b.as_ref();
assert_eq!(c.myval(), 3);
}
#[wasm_bindgen_test]
fn multiple_layers_of_inheritance() {
let a = JsCast4::new();
assert!(a.is_instance_of::<JsCast4>());
assert!(a.is_instance_of::<JsCast3>());
assert!(a.is_instance_of::<JsCast1>());
let _: &JsCast3 = a.as_ref();
let b: &JsCast1 = a.as_ref();
assert_eq!(b.myval(), 4);
}
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