1--TEST--
2Self-referencing map entry GC - 004
3--FILE--
4<?php
5
6class Value {
7    public function __construct(public readonly string $value) {
8    }
9}
10
11$map = new WeakMap();
12$obj = new Value('a');
13$map[$obj] = [$map, $obj];
14$ref = WeakReference::create($map);
15
16gc_collect_cycles();
17
18var_dump($ref->get());
19
20gc_collect_cycles();
21
22// $map is first in the root buffer
23$map = null;
24$obj = null;
25gc_collect_cycles();
26
27var_dump($ref->get());
28
29--EXPECTF--
30object(WeakMap)#%d (1) {
31  [0]=>
32  array(2) {
33    ["key"]=>
34    object(Value)#%d (1) {
35      ["value"]=>
36      string(1) "a"
37    }
38    ["value"]=>
39    array(2) {
40      [0]=>
41      *RECURSION*
42      [1]=>
43      object(Value)#%d (1) {
44        ["value"]=>
45        string(1) "a"
46      }
47    }
48  }
49}
50NULL
51