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<?php declare(strict_types=1); class Foo { const int FOO = 42; } /** * @psalm-require-extends Foo */ trait Bar { public function foo(): int { return static::FOO; } } class Baz extends Foo { use Bar; } $baz = new Baz(); var_dump($baz->foo());
Output for git.master, git.master_jit
int(42)

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