jevsnes.git / third-party / rust / jgenesis / frontend / jgenesis-web / js / polyfill.js
polyfill.jsannotatedpolyfill.jssource31 lines · 939 B · raw

Stub polyfill for TextDecoder and TextEncoder based on: https://github.com/wasm-bindgen/wasm-bindgen/pull/3017/files

According to docs this shouldn't be necessary in the latest version of wasm-bindgen, but at least on wasm-bindgen v0.2.104 the audio worklet fails to initialize without this polyfill.

7if (!globalThis.TextDecoder) {
8    globalThis.TextDecoder = class TextDecoder {
9        decode(arg) {
10            if (typeof arg !== "undefined") {
11                throw Error("TextDecoder stub called");
12            } else {
13                return "";
14            }
15        }
16    };
17}

19if (!globalThis.TextEncoder) {
20    globalThis.TextEncoder = class TextEncoder {
21        encode(arg) {
22            if (typeof arg !== "undefined") {
23                throw Error("TextEncoder stub called");
24            } else {
25                return new Uint8Array(0);
26            }
27        }
28    };
29}
30
31export function run_polyfill() {}