If not defined, etc., it will not be recognized.

main.js
```
var some = {};
module.exports = some;

a
```

errorCheck.js
```
var file = require("path").join("main.js");
var src = require("fs").readFileSync(file);
var ec = check(src, file);

if(ec) return { ... };
require("./main.js");
...
```

```
uncaughtException - a is not defined
```

Start with the main.js and errorCheck.js examples in the issue and inspect the package entry point that exposes check. Reproduce the shown uncaughtException behavior, then review existing tests to determine whether this case is expected to be reported; done should include a test or clarified behavior for the example.

索引モデルが issue の本文から書いたものです。