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LibJS: Don't match async \n function as an async function declaration

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davidot 2021-11-30 15:52:51 +01:00 • committed by Linus Groh
parent c2ebaa9d87
commit 5010d4c20c
2 changed files with 27 additions and 5 deletions
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15
Userland/Libraries/LibJS/Tests/syntax/async-await.js
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@ -1,8 +1,9 @@
describe("parsing freestanding async functions", () => {
test("simple", () => {
expect(`async function foo() {}`).toEval();
// Although it does not create an async function it is valid.
expect(`async
function foo() {}`).not.toEval();
function foo() {}`).toEval();
});
test("await expression", () => {
expect(`async function foo() { await bar(); }`).toEval();
@ -167,6 +168,18 @@ describe("non async function declaration usage of async still works", () => {
const evalResult = eval("async >= 2");
expect(evalResult).toBeTrue();
});
test("async with line ending does not create a function", () => {
expect(() => {
// The ignore is needed otherwise prettier puts a ';' after async.
// prettier-ignore
async
function f() {}
}).toThrowWithMessage(ReferenceError, "'async' is not defined");
expect(`async
function f() { await 3; }`).not.toEval();
});
});
describe("await cannot be used in class static init blocks", () => {