swc/crates/swc_ecma_parser/tests/tsc/nonPrimitiveUnionIntersection.ts

// @declaration: true
var a: object & string = ""; // error
var b: object | string = ""; // ok
var c: object & {} = 123; // error
a = b; // error
b = a; // ok

const foo: object & {} = {bar: 'bar'}; // ok
const bar: object & {err: string} = {bar: 'bar'}; // error
feat(es): TypeScript 4.2 (#1330) swc_ecma_ast: - Add `is_abstract` to constructor types. swc_ecma_codegen: - Fix codegen of `Bool`. - Implement codegen for abstract constructors. swc_ecma_parser: - Inline tsc parser test suite. - Implement parsing of abstract constructor types. 2021-01-15 13:30:44 +03:00			`// @declaration: true`
			`var a: object & string = ""; // error`
			`var b: object \| string = ""; // ok`
			`var c: object & {} = 123; // error`
			`a = b; // error`
			`b = a; // ok`

			`const foo: object & {} = {bar: 'bar'}; // ok`
			`const bar: object & {err: string} = {bar: 'bar'}; // error`