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

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