generics support (phpstan)

[etshy]

Subject	Details
Plugin	Php Inspections (EA Extended), 5.4.0
Language level	php 8.1

Current behaviour

generics with @template of Interface not working correctly.
Here is my following phpDoc

   /**
     * @template T of TestInterface
     * @param T $test
     * @return T
     */
    public function callTest(TestInterface $test): TestInterface

In a method where $test is typehinted to a specific class, implementing TestInterface

public function (Test1 $test)
{
     $test = $otherClass->callTest($test);
}

Here, PhpStorm understand $test is still an instance of Test1 but EA gives me a warning

[EA] New value type (TestInterface) is not matching the resolved parameter type and might introduce types-related false-positives. 

Expected behaviour

EA should interpret generics and that the returned object is of the same instance as the one passed in argument.

Environment details

Build #PS-252.27397.112, built on October 24, 2025

[ea-inspections-team]

Thank you for reporting @etshy!

For some reason, I can not reproduce the issue. Can you please share a complete example with test classes and the interface in a single file or code block?

[etshy]

Sure here it is

TestClass.php

In the example, I made only one "parameters" class, but in the real I have multiple classes.
I want it to hard fail when the wrong parameters is passed but still want PhpStorm to know that the results is the same as the one passed.

If I disable the EA inspectin for this statement, Phpstorm seems to understand well that the returned type is the same as the one passed.

[ea-inspections-team]

Thank you @etshy, I can reproduce it now.

[ea-inspections-team]

Thank you for reporting @etshy! The false-positive has been addressed.