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PATH: home / lab2454c / healthvalidate.com / vendor / nikic / php-parser / lib / PhpParser / Lexer / TokenEmulator

<?php declare(strict_types=1);

namespace PhpParser\Lexer\TokenEmulator;

use PhpParser\Lexer\Emulative;

final class CoaleseEqualTokenEmulator extends TokenEmulator
{
    public function getPhpVersion(): string
    {
        return Emulative::PHP_7_4;
    }

public function isEmulationNeeded(string $code): bool
    {
        return strpos($code, '??=') !== false;
    }

public function emulate(string $code, array $tokens): array
    {
        // We need to manually iterate and manage a count because we'll change
        // the tokens array on the way
        $line = 1;
        for ($i = 0, $c = count($tokens); $i < $c; ++$i) {
            if (isset($tokens[$i + 1])) {
                if ($tokens[$i][0] === T_COALESCE && $tokens[$i + 1] === '=') {
                    array_splice($tokens, $i, 2, [
                        [\T_COALESCE_EQUAL, '??=', $line]
                    ]);
                    $c--;
                    continue;
                }
            }
            if (\is_array($tokens[$i])) {
                $line += substr_count($tokens[$i][1], "\n");
            }
        }

return $tokens;
    }

public function reverseEmulate(string $code, array $tokens): array
    {
        // ??= was not valid code previously, don't bother.
        return $tokens;
    }
}

[-] FlexibleDocStringEmulator.php [edit]
[-] NullsafeTokenEmulator.php [edit]
[-] ReverseEmulator.php [edit]
[+] ..
[-] MatchTokenEmulator.php [edit]
[-] KeywordEmulator.php [edit]
[-] AttributeEmulator.php [edit]
[-] EnumTokenEmulator.php [edit]
[-] CoaleseEqualTokenEmulator.php [edit]
[-] ReadonlyTokenEmulator.php [edit]
[-] FnTokenEmulator.php [edit]
[-] NumericLiteralSeparatorEmulator.php [edit]
[-] TokenEmulator.php [edit]