Evaluator::evaluate() - Code Metrics - Inspection of "Move namespaces" - nicoSWD/php-rule-parser - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( f06ad0...9cb85d )

by Nico

created 2017-10-29 21:57 UTC

Evaluator::evaluate() A

↳ Parent: Evaluator

Complexity

Conditions	2
Paths	1

Size

Total Lines	16
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	10
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	16
ccs	10
cts	10
cp	1
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	11
nc	1
nop	1
crap	2

<?php

declare(strict_types=1);

/**
 * @license     http://opensource.org/licenses/mit-license.php MIT
 * @link        https://github.com/nicoSWD
 * @author      Nicolas Oelgart <[email protected]>
 */
namespace nicoSWD\Rules\Evaluator;

class Evaluator implements EvaluatorInterface
{
    const LOGICAL_AND = '&';
    const LOGICAL_OR = '|';

    const BOOL_TRUE = '1';
    const BOOL_FALSE = '0';

    public function evaluate(string $group): bool
    {
        $count = 0;

        do {
            $group = preg_replace_callback(
                '~\(([^\(\)]+)\)~',
                [$this, 'evalGroup'],
                $group,
                -1,
                $count
            );
        } while ($count > 0);

        return (bool) $this->evalGroup([1 => $group]);
    }

    /**
     * @param string[] $group
     * @throws Exception\UnknownSymbolException
     * @return int|null
     */
    private function evalGroup(array $group)
    {
        $result = null;
        $operator = null;

        for ($offset = 0; isset($group[1][$offset]); $offset++) {
            $value = $group[1][$offset];

            if ($this->isLogical($value)) {
                $operator = $value;
            } elseif ($this->isBoolean($value)) {
                $result = $this->setResult($result, $value, $operator);
            } else {
                throw new Exception\UnknownSymbolException(sprintf('Unexpected "%s"', $value));
            }
        }

        return $result;
    }

    private function setResult($result, string $value, $operator): int
    {
        if (!isset($result)) {
            $result = (int) $value;
        } elseif ($operator === self::LOGICAL_AND) {
            $result &= $value;
        } elseif ($operator === self::LOGICAL_OR) {
            $result |= $value;
        }

        return $result;
    }

    private function isLogical($value): bool
    {
        return $value === self::LOGICAL_AND || $value === self::LOGICAL_OR;
    }

    private function isBoolean($value): bool
    {
        return $value === self::BOOL_TRUE || $value === self::BOOL_FALSE;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		/**
6		* @license http://opensource.org/licenses/mit-license.php MIT
7		* @link https://github.com/nicoSWD
8		* @author Nicolas Oelgart <[email protected]>
9		*/
10		namespace nicoSWD\Rules\Evaluator;
11
12		class Evaluator implements EvaluatorInterface
13		{
14		const LOGICAL_AND = '&';
15		const LOGICAL_OR = '\|';
16
17		const BOOL_TRUE = '1';
18		const BOOL_FALSE = '0';
19
20	164	public function evaluate(string $group): bool
21		{
22	164	$count = 0;
23
24		do {
25	164	$group = preg_replace_callback(
26	164	'~\(([^\(\)]+)\)~',
27	164	[$this, 'evalGroup'],
28	164	$group,
29	164	-1,
30	164	$count
31		);
32	162	} while ($count > 0);
33
34	162	return (bool) $this->evalGroup([1 => $group]);
35		}
36
37		/**
38		* @param string[] $group
39		* @throws Exception\UnknownSymbolException
40		* @return int\|null
41		*/
42	166	private function evalGroup(array $group)
43		{
44	166	$result = null;
45	166	$operator = null;
46
47	166	for ($offset = 0; isset($group[1][$offset]); $offset++) {
48	164	$value = $group[1][$offset];
49
50	164	if ($this->isLogical($value)) {
51	38	$operator = $value;
52	164	} elseif ($this->isBoolean($value)) {
53	164	$result = $this->setResult($result, $value, $operator);
54		} else {
55	2	throw new Exception\UnknownSymbolException(sprintf('Unexpected "%s"', $value));
56		}
57		}
58
59	164	return $result;
60		}
61
62	164	private function setResult($result, string $value, $operator): int
63		{
64	164	if (!isset($result)) {
65	164	$result = (int) $value;
66	36	} elseif ($operator === self::LOGICAL_AND) {
67	32	$result &= $value;
68	22	} elseif ($operator === self::LOGICAL_OR) {
69	22	$result \|= $value;
70		}
71
72	164	return $result;
73		}
74
75	164	private function isLogical($value): bool
76		{
77	164	return $value === self::LOGICAL_AND \|\| $value === self::LOGICAL_OR;
78		}
79
80	164	private function isBoolean($value): bool
81		{
82	164	return $value === self::BOOL_TRUE \|\| $value === self::BOOL_FALSE;
83		}
84		}
85

nicoSWD / php-rule-parser

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Evaluator::evaluate() A

Complexity

Size

Duplication

Code Coverage

Importance

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