Dumping an array type causes phpstan to forget what it knew about the type

[mad-briller]

Bug report

Using PHPStan\dumpType to investigate types causes side-effects on the inspected types when the type is an array:

Code snippet that reproduces the problem

https://phpstan.org/r/9f986651-78d9-45c7-8718-d6a7f7eedc9e

Expected output

I would expect the same output for count in both locations.

Did PHPStan help you today? Did it make you happy in any way?

As always, it helps me and my org. every day!

[ondrejmirtes]

dumpType needs @phpstan-pure (https://github.com/phpstan/phpstan-src/blob/1.8.x/src/dumpType.php) same as these functions: https://github.com/phpstan/phpstan-src/blob/1.8.x/src/Testing/functions.php

Also needs to be added as exception here: https://github.com/phpstan/phpstan-src/blob/bd971db903c650ec4ffd7f2db65d3fe6a2b5666d/src/Rules/Functions/CallToFunctionStatementWithoutSideEffectsRule.php#L59-L65

Easiest thing to contribute ;)

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.