--TEST--
Attributes can be converted into objects.
--FILE--
<?php

#[Attribute(Attribute::TARGET_FUNCTION)]
class A1
{
    public string $name;
    public int $ttl;

    public function __construct(string $name, int $ttl = 50)
    {
        $this->name = $name;
        $this->ttl = $ttl;
    }
}

$ref = new \ReflectionFunction(#[A1('test')] function () { });

foreach ($ref->getAttributes() as $attr) {
    $obj = $attr->newInstance();

    var_dump(get_class($obj), $obj->name, $obj->ttl);
}

echo "\n";

$ref = new \ReflectionFunction(#[A1] function () { });

try {
    $ref->getAttributes()[0]->newInstance();
} catch (\ArgumentCountError $e) {
    var_dump('ERROR 1', $e->getMessage());
}

echo "\n";

$ref = new \ReflectionFunction(#[A1([])] function () { });

try {
    $ref->getAttributes()[0]->newInstance();
} catch (\TypeError $e) {
    var_dump('ERROR 2', $e->getMessage());
}

echo "\n";

$ref = new \ReflectionFunction(#[A2] function () { });

try {
    $ref->getAttributes()[0]->newInstance();
} catch (\Error $e) {
    var_dump('ERROR 3', $e->getMessage());
}

echo "\n";

#[Attribute]
class A3
{
    private function __construct() { }
}

$ref = new \ReflectionFunction(#[A3] function () { });

try {
    $ref->getAttributes()[0]->newInstance();
} catch (\Error $e) {
    var_dump('ERROR 4', $e->getMessage());
}

echo "\n";

class A5 { }

$ref = new \ReflectionFunction(#[A5] function () { });

try {
    $ref->getAttributes()[0]->newInstance();
} catch (\Error $e) {
    var_dump('ERROR 6', $e->getMessage());
}

?>
--EXPECTF--
string(2) "A1"
string(4) "test"
int(50)

string(7) "ERROR 1"
string(%d) "Too few arguments to function A1::__construct(), 0 passed in %s005_objects.php on line 26 and at least 1 expected"

string(7) "ERROR 2"
string(%d) "A1::__construct(): Argument #1 ($name) must be of type string, array given, called in %s005_objects.php on line 36"

string(7) "ERROR 3"
string(30) "Attribute class "A2" not found"

string(7) "ERROR 4"
string(51) "Call to private A3::__construct() from global scope"

string(7) "ERROR 6"
string(55) "Attempting to use non-attribute class "A5" as attribute"