phpstan-src/tests/PHPStan/Analyser/nsrt/bug-12163.php at cb6972e3c82e2abebcb1a99ac1c2ae31bb74b40d · 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
<?php declare(strict_types = 1);

namespace Bug12163;

use function PHPStan\Testing\assertType;

class Test
{
	public function iterateRowColumnIndicesIncrementing(int $rows, int $columns): void
	{
		if ($rows < 1 || $columns < 1) return;
		$size = $rows * $columns;

		$rowIndex = 0;
		$columnIndex = 0;
		for ($i = 0; $i < $size; $i++) {
			assertType('int<0, max>', $rowIndex);
			assertType('int<0, max>', $columnIndex);
			if ($columnIndex < $columns) {
				$columnIndex++;
			} else {
				$columnIndex = 0;
				$rowIndex++;
			}
		}
	}
}

class Test2
{
	public function iterateRowColumnIndicesDecrementing(int $rows, int $columns): void
	{
		if ($rows < 1 || $columns < 1) return;
		$size = $rows * $columns;

		$rowIndex = 0;
		$columnIndex = 0;
		for ($i = 0; $i < $size; $i++) {
			assertType('0', $rowIndex); // `0`, because the IF in line 41 is always TRUE
			assertType('int<min, 0>', $columnIndex);
			if ($columnIndex < $columns) {
				$columnIndex--;
			} else {
				$columnIndex = 0;
				$rowIndex++;
			}
		}
	}
}

class Test3
{
	/**
	 * @param int<0, 30> $columnIndex
	 */
	public function iterateRowColumnIndicesDecrementing(int $rows, int $columns, int $columnIndex): void
	{
		if ($rows < 1 || $columns < 1) return;
		$size = $rows * $columns;

		for ($i = 0; $i < $size; $i++) {
			assertType('int<min, 30>', $columnIndex);
			if ($columnIndex < 3) {
				$columnIndex--;
			} else {
				$columnIndex = 0;
			}
			assertType('int<min, 1>', $columnIndex);
		}
	}
}

class Bug12163
{
	/**
	 * @param non-negative-int $value
	 * @return void
	 */
	private function checkNonNegative(int $value): void
	{
		sleep(1);
	}

	public function iterateRowColumnIndices(int $rows, int $columns): void
	{
		if ($rows < 1 || $columns < 1) return;
		$size = $rows * $columns;

		$rowIndex = 0;
		$columnIndex = 0;
		for ($i = 0; $i < $size; $i++) {
			$this->checkNonNegative($rowIndex);
			$this->checkNonNegative($columnIndex);
			if ($columnIndex < $columns) {
				$columnIndex++;
			} else {
				$columnIndex = 0;
				$rowIndex++;
			}
		}
	}
}