phpstan-src/tests/PHPStan/Analyser/nsrt/bug-14525.php at 27f77278f6f50c51690d8fc9f5c06d19a1cd8568 · phpstan-bot/phpstan-src · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
<?php declare(strict_types = 1);

namespace Bug14525;

use function PHPStan\Testing\assertType;

function basicArrayWalk(): void
{
	$array = ['a' => 1, 'b' => 2];
	array_walk($array, function (&$value, $key): void {
		$value = (string) $value;
	});
	assertType("array{a: '1'|'2', b: '1'|'2'}", $array);
}

function arrayWalkGeneric(): void
{
	/** @var array<string, int> $array */
	$array = ['a' => 1, 'b' => 2];
	array_walk($array, function (&$value, $key): void {
		$value = (string) $value;
	});
	assertType("array<string, lowercase-string&numeric-string&uppercase-string>", $array);
}

function arrayWalkNoModification(): void
{
	/** @var array<string, int> $array */
	$array = ['a' => 1, 'b' => 2];
	array_walk($array, function (&$value, $key): void {
		echo $value;
	});
	assertType("array<string, int>", $array);
}

function arrayWalkConditionalModification(): void
{
	/** @var array<string, int> $array */
	$array = ['a' => 1, 'b' => 2];
	array_walk($array, function (&$value, string $key): void {
		if ($key === 'a') {
			$value = 'modified';
			return;
		}
	});
	assertType("array<string, 'modified'|int>", $array);
}

function arrayWalkWithoutByRef(): void
{
	/** @var array<string, int> $array */
	$array = ['a' => 1, 'b' => 2];
	array_walk($array, function ($value, $key): void {
		$value = (string) $value;
	});
	assertType("array<string, int>", $array);
}

function arrayWalkNonEmptyArray(): void
{
	/** @var non-empty-array<string, int> $array */
	$array = ['a' => 1];
	array_walk($array, function (&$value): void {
		$value = (string) $value;
	});
	assertType("non-empty-array<string, lowercase-string&numeric-string&uppercase-string>", $array);
}

function arrayWalkList(): void
{
	/** @var list<int> $list */
	$list = [1, 2, 3];
	array_walk($list, function (&$value): void {
		$value = (string) $value;
	});
	assertType("list<lowercase-string&numeric-string&uppercase-string>", $list);
}

function arrayWalkAlwaysTerminating(): void
{
	/** @var array<string, int> $array */
	$array = ['a' => 1, 'b' => 2];
	array_walk($array, function (&$value): void {
		$value = (string) $value;
		return;
	});
	assertType("array<string, lowercase-string&numeric-string&uppercase-string>", $array);
}

function arrayWalkNestedArray(): void
{
	$array = ['a' => ['x' => 1, 'y' => 2], 'b' => ['z' => 3]];
	array_walk($array, function (&$value): void {
		$value = count($value);
	});
	assertType("array{a: 1|2, b: 1|2}", $array);
}

function arrayWalkWithNestedClosure(): void
{
	/** @var array<string, int> $array */
	$array = ['a' => 1, 'b' => 2];
	array_walk($array, function (&$value): void {
		$inner = array_map(function ($x) {
			return $x * 2;
		}, [1, 2, 3]);
		$value = (string) $value;
	});
	assertType("array<string, lowercase-string&numeric-string&uppercase-string>", $array);
}

function arrayWalkWithNestedClosureByRef(): void
{
	/** @var array<string, int> $array */
	$array = ['a' => 1, 'b' => 2];
	array_walk($array, function (&$value): void {
		$capture = null;
		$fn = function () use (&$capture): void {
			$capture = 'hello';
		};
		$fn();
		$value = (string) $value;
	});
	assertType("array<string, lowercase-string&numeric-string&uppercase-string>", $array);
}