Nicolò Ribaudo 6ef7b51a11 Implement assumptions defined in the babel/rfcs#5 RFC
- `mutableTemplateObject` and `ignoreToPrimitiveHint` (#12408)
- `setClassMethods` (#12407)
- `setComputedProperties` (#12490)
- `ignoreFunctionLength` (#12491)
- `noDocumentAll` (#12481)
- `iterableIsArray` and `arrayLikeIsIterable` (#12489)
- `pureGetters` (#12504)
- `skipForOfIteratorClosing` (#12496)
- `objectRestNoSymbols`, `setSpreadProperties` and `pureGetters` (#12505)
- `noNewArrows` (#12613, #12793)
- `setPublicClassFields` and `privateFieldsAsProperties` (#12497)
- `constantReexports` and `enumerableModuleMeta` (#12618)
- `constantSuper`, `superIsCallableConstructor` and `noClassCalls` (#12726)

Co-authored-by: Justin Ridgewell <justin@ridgewell.name>
Co-authored-by: Huáng Jùnliàng <JLHwung@users.noreply.github.com>
2021-02-21 17:09:45 +01:00

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JavaScript

var _foo, _foo2, _foo3, _foo$bar, _foo4, _foo5, _foo5$bar;
foo === null || foo === void 0 ? void 0 : foo(foo);
(_foo = foo) === null || _foo === void 0 ? void 0 : _foo.bar();
foo.bar === null || foo.bar === void 0 ? void 0 : foo.bar(foo.bar, false);
(_foo2 = foo) === null || _foo2 === void 0 ? void 0 : _foo2.bar === null || _foo2.bar === void 0 ? void 0 : _foo2.bar(foo.bar, true);
foo === null || foo === void 0 ? void 0 : foo().bar;
foo === null || foo === void 0 ? void 0 : (_foo3 = foo()) === null || _foo3 === void 0 ? void 0 : _foo3.bar;
foo.bar === null || foo.bar === void 0 ? void 0 : foo.bar().baz;
foo.bar === null || foo.bar === void 0 ? void 0 : (_foo$bar = foo.bar()) === null || _foo$bar === void 0 ? void 0 : _foo$bar.baz;
(_foo4 = foo) === null || _foo4 === void 0 ? void 0 : _foo4.bar === null || _foo4.bar === void 0 ? void 0 : _foo4.bar().baz;
(_foo5 = foo) === null || _foo5 === void 0 ? void 0 : _foo5.bar === null || _foo5.bar === void 0 ? void 0 : (_foo5$bar = _foo5.bar()) === null || _foo5$bar === void 0 ? void 0 : _foo5$bar.baz;