babel/packages/babel-plugin-proposal-optional-chaining-assign/test/fixtures/general/basic/output.js

var _a$b;
(_a$b = a.b) === null || _a$b === void 0 || (_a$b = _a$b.c.d) === null || _a$b === void 0 ? void 0 : _a$b.e.f = g;