Yiisoft\Db\Pgsql\Composite\CompositeParser

Complexity

Total Complexity

12

Size/Duplication

Total Lines	64
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	parse()	0	7	2
A	parseQuotedString()	0	11	4
A	parseUnquotedString()	0	8	3
A	parseComposite()	0	11	3

<?php

declare(strict_types=1);

namespace Yiisoft\Db\Pgsql\Composite;

/**
 * Composite type representation to PHP array parser for PostgreSQL Server.
 */
final class CompositeParser
{
    /**
     * Converts composite type value from PostgreSQL to PHP array
     *
     * @param string $value String to convert.
     */
    public function parse(string $value): array|null
    {
        if ($value[0] !== '(') {
            return null;
        }

        return $this->parseComposite($value);
    }

    /**
     * Parses PostgreSQL composite type value encoded in string.
     *
     * @param string $value String to parse.
     */
    private function parseComposite(string $value): array
    {
        for ($result = [], $i = 1;; ++$i) {
            $result[] = match ($value[$i]) {
                ',', ')' => null,
                '"' => $this->parseQuotedString($value, $i),
                default => $this->parseUnquotedString($value, $i),
            };

            if ($value[$i] === ')') {
                return $result;
            }
        }

In this branch, the function will implicitly return null which is incompatible with the type-hinted return array. Consider adding a return statement or allowing null as return value.

    }

    /**
     * Parses quoted string.
     */
    private function parseQuotedString(string $value, int &$i): string
    {
        for ($result = '', ++$i;; ++$i) {
            if ($value[$i] === '\\') {
                ++$i;
            } elseif ($value[$i] === '"') {
                ++$i;
                return $result;
            }

            $result .= $value[$i];
        }

In this branch, the function will implicitly return null which is incompatible with the type-hinted return string. Consider adding a return statement or allowing null as return value.

    }

    /**
     * Parses unquoted string.
     */
    private function parseUnquotedString(string $value, int &$i): string
    {
        for ($result = '';; ++$i) {
            if (in_array($value[$i], [',', ')'], true)) {
                return $result;
            }

            $result .= $value[$i];
        }

In this branch, the function will implicitly return null which is incompatible with the type-hinted return string. Consider adding a return statement or allowing null as return value.

    }
}