f8bfc6f5d6
* Binding element initializers contextually typed by parent initializers * Accept new baselines * Literal type widening should be last step in inference * Accept new baselines * Add tests
23 lines
389 B
TypeScript
23 lines
389 B
TypeScript
// @strict: true
|
|
|
|
declare let x: { a: 0 | 1 | undefined };
|
|
|
|
let { a: a1 } = x;
|
|
let { a: a2 = 0 } = x;
|
|
let { a: a3 = 2 } = x;
|
|
let { a: a4 = 2 as const } = x;
|
|
|
|
let b1 = x.a;
|
|
let b2 = x.a ?? 0;
|
|
let b3 = x.a ?? 2;
|
|
let b4 = x.a ?? 2 as const;
|
|
|
|
// Repro from #35693
|
|
|
|
interface Foo {
|
|
bar: 'yo' | 'ha' | undefined;
|
|
}
|
|
|
|
let { bar = 'yo' } = {} as Foo;
|
|
|
|
bar; // "yo" | "ha"
|