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Direktori : /home/silvzytp/dsr_code/vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/ |
Current File : //home/silvzytp/dsr_code/vendor/nikic/php-parser/lib/PhpParser/Lexer/TokenEmulator/CoaleseEqualTokenEmulator.php |
<?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; } }