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<?php class Foo { /** @var int */ public static $bar = 0; public ?string $test = null; /** @psalm-external-mutation-free */ public function setTest(string $value) : void { $this->test = $value; ++self::$bar; } } class Bar { /** @psalm-mutation-free */ function test() : void { $foo = new Foo(); $foo->setTest('abcd'); } } $bar = new Bar(); $a = Foo::$bar; /** @psalm-suppress UnusedMethodCall irrelevant */ $bar->test(); $b = Foo::$bar; assert($a === $b);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught AssertionError: assert($a === $b) in /in/TnqrJ:33 Stack trace: #0 /in/TnqrJ(33): assert(false, 'assert($a === $...') #1 {main} thrown in /in/TnqrJ on line 33
Process exited with code 255.

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