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php

--TEST--
Testing 'self', 'parent' as type-hint
--FILE--
<?php 

interface iTest { }
 
class baz implements iTest {}
 
class bar { }
 
class foo extends bar {
    public function testFoo(self $obj) {
        var_dump($obj);
    }
    public function testBar(parent $obj) {
        var_dump($obj);
    }
    public function testBaz(iTest $obj) {
        var_dump($obj);
    }
}
 
$foo = new foo;
$foo->testFoo(new foo);
$foo->testBar(new bar);
$foo->testBaz(new baz);
$foo->testFoo(new stdClass); // Catchable fatal error

?>
--EXPECTF--
object(foo)#%d (0) {
}
object(bar)#%d (0) {
}
object(baz)#%d (0) {
}

Catchable fatal error: Argument 1 passed to foo::testFoo() must be an instance of foo, instance of stdClass given, called in %s on line %d and defined in %s on line %d