What happens when composer require encounters recursion problems?

for example, what if you continue to rely on packA in composer require packA, packA?

cannot be infinitely recursive, so how does it deal with it?
think about it casually, and if you have a boss who knows, you will have trouble to solve the problem.

Php composer

Jul.16,2021

will not repeat loading

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How to develop composer packages for the framework?
thinkphp5 composer tp5 composer ...

Thinkphp5 php composer

Mar.01,2021
Report to file could not be downloaded after composer install
Screenshot of error message is as follows error content: [ComposerDownloaderTransportException] The "https: packagist.org p provider-2018-01%245364abf20a2335046831825d0f875bd8117c10523d85a475acb2056d7214e62e. json " file could not be downloaded (...

Php composer

Mar.02,2021
Composer installed successfully, unable to load dependency package
it s embarrassing. I have tried N times, my system is win10 environment is phpstudy integrated environment! in my php.ini, openssl has been opened and CA certificate has been downloaded. ...

Php composer

Mar.03,2021
Semantic version of composer
what does the ^ in "^ 3.4 " below stand for? "symfony http-foundation ": "^ 3.4 " ...

Semantic php composer

Mar.05,2021
Why can't I get the package I submitted to composer?
problem description according to the instructions on the official website, you cannot pull a package when you submit a package to composer, but pull it to composer require. package address is: https: packagist.org package. I have tried to type tag...

Php composer

May.24,2021