Viewing github.com/facebook/react/scripts/eslint-rules/no-to-warn-dev-within-to-throw.js

```
/**
```

 * Copyright (c) Meta Platforms, Inc. and affiliates.

```
 *
```

 * This source code is licensed under the MIT license found in the

 * LICENSE file in the root directory of this source tree.

```
 *
```
```
 * @emails react-core
```
```
 */
```
```
'use strict';
```
```
module.exports = {
```
```
  meta: {
```
```
    schema: [],
```
```
  },
```
```
  create(context) {
```
```
    return {
```
```
      Identifier(node) {
```

        if (node.name === 'toWarnDev' || node.name === 'toErrorDev') {

```
          let current = node;
```
```
          while (current.parent) {
```

            if (current.type === 'CallExpression') {

```
              if (
```
```
                current &&
```
```
                current.callee &&
```

                current.callee.property &&

                current.callee.property.name === 'toThrow'

```
              ) {
```
```
                context.report(
```
```
                  node,
```

                  node.name + '() matcher should not be nested'

```
                );
```
```
              }
```
```
            }
```
```
            current = current.parent;
```
```
          }
```
```
        }
```
```
      },
```
```
    };
```
```
  },
```
```
};
```

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