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test/cases/parsing/using/index.js
55 строк
880 B
Alexander Akait
feat: support `using` keyword
26 июн 2025, 20:10
Не верифицирован
26 июн 2025, 20:10
43b0aaf
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import { resource, disposed } from "./module.js"; let disposeCounter = 0; const getResource = () => { return { test() { // Nothing }, [Symbol.dispose]: () => { disposeCounter++; } } } it("should using", async () => { { using foo = getResource(); foo.test(); } expect(disposeCounter).toBe(1); { await using bar = getResource(); bar.test(); } expect(disposeCounter).toBe(2); for (await using x of [getResource()]) { x.test(); } expect(disposeCounter).toBe(3); for await (await using x of [getResource()]) { x.test(); } expect(disposeCounter).toBe(4); { using resource = await getResource(); } expect(disposeCounter).toBe(5); // TODO uncomment when will re resolved on V8 side - https://github.com/tc39/proposal-explicit-resource-management/issues/262 // resource[Symbol.dispose](); // expect(disposed).toBe(true); });