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

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