8c5fa5cc91
* Revert subtype narrowing changes from readonly array PRs * Adds a test for the change * More baselines
124 lines
6.4 KiB
Plaintext
124 lines
6.4 KiB
Plaintext
=== tests/cases/compiler/narrowingAssignmentReadonlyRespectsAssertion.ts ===
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// https://github.com/microsoft/TypeScript/issues/41984
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interface TestCase<T extends string | number> {
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>TestCase : Symbol(TestCase, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 0, 0))
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>T : Symbol(T, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 2, 19))
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readonly val1: T | ReadonlyArray<T>;
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>val1 : Symbol(TestCase.val1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 2, 47))
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>T : Symbol(T, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 2, 19))
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>ReadonlyArray : Symbol(ReadonlyArray, Decl(lib.es5.d.ts, --, --))
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>T : Symbol(T, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 2, 19))
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readonly val2: ReadonlyArray<T>;
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>val2 : Symbol(TestCase.val2, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 3, 38))
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>ReadonlyArray : Symbol(ReadonlyArray, Decl(lib.es5.d.ts, --, --))
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>T : Symbol(T, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 2, 19))
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}
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interface MultiCaseFixture<T> {
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>MultiCaseFixture : Symbol(MultiCaseFixture, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 5, 1))
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>T : Symbol(T, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 7, 27))
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cases: T[];
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>cases : Symbol(MultiCaseFixture.cases, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 7, 31))
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>T : Symbol(T, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 7, 27))
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}
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function subDataFunc(): TestCase<string | number>[] {
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>subDataFunc : Symbol(subDataFunc, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 9, 1))
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>TestCase : Symbol(TestCase, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 0, 0))
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return [
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{ val1: "a", val2: ["a", "b", "c"] },
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>val1 : Symbol(val1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 13, 7))
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>val2 : Symbol(val2, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 13, 18))
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{ val1: 2, val2: [1, 2, 3] },
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>val1 : Symbol(val1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 14, 7))
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>val2 : Symbol(val2, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 14, 16))
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{ val1: ["a", "z"], val2: ["x", "y", "z"] },
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>val1 : Symbol(val1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 15, 7))
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>val2 : Symbol(val2, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 15, 25))
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{ val1: [5, 10], val2: [10, 100, 1000] },
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>val1 : Symbol(val1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 16, 7))
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>val2 : Symbol(val2, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 16, 22))
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];
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}
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function dataFunc<T>(subFunc: () => T[]): MultiCaseFixture<T> {
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>dataFunc : Symbol(dataFunc, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 18, 1))
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>T : Symbol(T, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 20, 18))
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>subFunc : Symbol(subFunc, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 20, 21))
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>T : Symbol(T, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 20, 18))
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>MultiCaseFixture : Symbol(MultiCaseFixture, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 5, 1))
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>T : Symbol(T, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 20, 18))
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return { cases: subFunc() };
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>cases : Symbol(cases, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 21, 10))
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>subFunc : Symbol(subFunc, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 20, 21))
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}
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function testFunc() {
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>testFunc : Symbol(testFunc, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 22, 1))
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const fixture = dataFunc<TestCase<string | number>>(subDataFunc);
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>fixture : Symbol(fixture, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 25, 7))
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>dataFunc : Symbol(dataFunc, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 18, 1))
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>TestCase : Symbol(TestCase, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 0, 0))
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>subDataFunc : Symbol(subDataFunc, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 9, 1))
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fixture.cases.forEach(({ val1, val2 }) => {
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>fixture.cases.forEach : Symbol(Array.forEach, Decl(lib.es5.d.ts, --, --))
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>fixture.cases : Symbol(MultiCaseFixture.cases, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 7, 31))
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>fixture : Symbol(fixture, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 25, 7))
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>cases : Symbol(MultiCaseFixture.cases, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 7, 31))
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>forEach : Symbol(Array.forEach, Decl(lib.es5.d.ts, --, --))
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>val1 : Symbol(val1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 26, 26))
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>val2 : Symbol(val2, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 26, 32))
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if (Array.isArray(val1)) {
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>Array.isArray : Symbol(ArrayConstructor.isArray, Decl(lib.es5.d.ts, --, --))
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>Array : Symbol(Array, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
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>isArray : Symbol(ArrayConstructor.isArray, Decl(lib.es5.d.ts, --, --))
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>val1 : Symbol(val1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 26, 26))
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// This should retain val1 as being an array
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const reversedVal1 = val1.slice().reverse();
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>reversedVal1 : Symbol(reversedVal1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 29, 15))
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>val1.slice().reverse : Symbol(Array.reverse, Decl(lib.es5.d.ts, --, --))
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>val1.slice : Symbol(Array.slice, Decl(lib.es5.d.ts, --, --))
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>val1 : Symbol(val1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 26, 26))
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>slice : Symbol(Array.slice, Decl(lib.es5.d.ts, --, --))
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>reverse : Symbol(Array.reverse, Decl(lib.es5.d.ts, --, --))
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console.log(reversedVal1);
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>reversedVal1 : Symbol(reversedVal1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 29, 15))
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} else {
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console.log(val1);
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>val1 : Symbol(val1, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 26, 26))
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}
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console.log(val2);
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>val2 : Symbol(val2, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 26, 32))
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});
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}
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testFunc();
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>testFunc : Symbol(testFunc, Decl(narrowingAssignmentReadonlyRespectsAssertion.ts, 22, 1))
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