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<?php interface FooInterface {} class A implements FooInterface {} class B implements FooInterface {} interface DoX { public function run(): FooInterface; } class Imp implements DoX { /** * @return \A|\B */ public function run() { return new A(); } }
Output for git.master_jit, git.master
Fatal error: Declaration of Imp::run() must be compatible with DoX::run(): FooInterface in /in/4QVaj on line 17 Stack trace: #0 {main}
Process exited with code 255.

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