diff --git a/src/js.rs b/src/js.rs index b35ef08a..c39d3716 100644 --- a/src/js.rs +++ b/src/js.rs @@ -634,6 +634,12 @@ extern { /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/has #[wasm_bindgen(method)] pub fn has(this: &WeakSet, value: Object) -> bool; + + /// The add() method appends a new object to the end of a WeakSet object. + /// + /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/add + #[wasm_bindgen(method)] + pub fn add(this: &WeakSet, value: Object) -> WeakSet; } // JsString diff --git a/tests/all/js_globals/WeakSet.rs b/tests/all/js_globals/WeakSet.rs index 40b4be5a..2788acc3 100644 --- a/tests/all/js_globals/WeakSet.rs +++ b/tests/all/js_globals/WeakSet.rs @@ -58,4 +58,39 @@ fn has() { } "#) .test() +} + +#[test] +fn add() { + project() + .file("src/lib.rs", r#" + #![feature(proc_macro, wasm_custom_section)] + + extern crate wasm_bindgen; + use wasm_bindgen::prelude::*; + use wasm_bindgen::js; + + #[wasm_bindgen] + pub fn add_value(this: &js::WeakSet, value: js::Object) -> js::WeakSet { + this.add(value) + } + "#) + .file("test.ts", r#" + import * as assert from "assert"; + import * as wasm from "./out"; + + export function test() { + let set = new WeakSet(); + let value = {some: "value"}; + wasm.add_value(set, value); + assert.equal(set.has(value), true); + + assert.throws(() => { wasm.add_value(set, 1) }, TypeError); + assert.throws(() => { wasm.add_value(set, true) }, TypeError); + assert.throws(() => { wasm.add_value(set, "fail") }, TypeError); + assert.throws(() => { wasm.add_value(set, null) }, TypeError); + assert.throws(() => { wasm.add_value(set, undefined) }, TypeError); + } + "#) + .test() } \ No newline at end of file