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The following syntax is valid: ```js e?.example / 1.2 ``` Previously, the `/` would be treated as a unterminated regex literal, because it was calling the regular `consume` instead of `consume_and_allow_division`. This is what is done when parsing IdentifierNames in parse_secondary_expression when a period is encountered. Allows us to parse clients-main-[hash].js on https://ubereats.com/
67 lines
2.4 KiB
JavaScript
67 lines
2.4 KiB
JavaScript
test("slash token resolution in lexer", () => {
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expect(`{ blah.blah; }\n/foo/`).toEval();
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expect(`{ blah?.blah.blah; }\n/foo/`).toEval();
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expect("``/foo/").not.toEval();
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expect("1/foo/").not.toEval();
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expect("1/foo").toEval();
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expect("{} /foo/").toEval();
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expect("{} /=/").toEval();
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expect("{} /=a/").toEval();
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expect("{} /* */ /=a/").toEval();
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expect("{} /* /a/ */ /=a/").toEval();
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expect("(function () {} / 1)").toEval();
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expect("(function () {} / 1)").toEval();
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expect("+a++ / 1").toEval();
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expect("+a-- / 1").toEval();
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expect("a.in / b").toEval();
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expect("a?.in.in / b").toEval();
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expect("a.instanceof / b").toEval();
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expect("a?.instanceof.instanceof / b").toEval();
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expect("class A { #name; d = a.#name / b; }").toEval();
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expect("class A { #name; d = a?.#name / b; }").toEval();
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expect("async / b").toEval();
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expect("a.delete / b").toEval();
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expect("a?.delete.delete / b").toEval();
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expect("delete / b/").toEval();
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expect("a.in / b").toEval();
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expect("a?.in.in / b").toEval();
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expect("for (a in / b/) {}").toEval();
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expect("a.instanceof / b").toEval();
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expect("a?.instanceof.instanceof / b").toEval();
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expect("a instanceof / b/").toEval();
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expect("a?.instanceof instanceof / b/").toEval();
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expect("new / b/").toEval();
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expect("null / b").toEval();
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expect("for (a of / b/) {}").toEval();
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expect("a.return / b").toEval();
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expect("a?.return.return / b").toEval();
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expect("function foo() { return / b/ }").toEval();
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expect("throw / b/").toEval();
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expect("a.typeof / b").toEval();
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expect("a?.typeof.typeof / b").toEval();
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expect("a.void / b").toEval();
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expect("a?.void.void / b").toEval();
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expect("void / b/").toEval();
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expect("await / b").toEval();
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expect("await / b/").not.toEval();
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expect("async function foo() { await / b }").not.toEval();
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expect("async function foo() { await / b/ }").toEval();
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expect("yield / b").toEval();
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expect("yield / b/").not.toEval();
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expect("function* foo() { yield / b }").not.toEval();
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expect("function* foo() { yield / b/ }").toEval();
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expect("this / 1").toEval();
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expect("this / 1 /").not.toEval();
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expect("this / 1 / 1").toEval();
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expect("this?.a / 1").toEval();
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expect("this?.a / 1 /").not.toEval();
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expect("this?.a / 1 / 1").toEval();
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});
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