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swc-project/swc

mirror of https://github.com/swc-project/swc.git synced 2024-12-20 12:12:16 +03:00

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-												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
+								//@target: ES6
 								class StringIterator {
 								    next() {
 								        return {
 								            value: "",
 								            done: false
 								        };
 								    }
 								    [Symbol.iterator]() {
 								        return this;
 								    }
 								}
 								var v: string;
 								for (v of new StringIterator) { } // Should succeed