<?php declare(strict_types=1);
namespace PhpParser\Lexer\TokenEmulator;
use PhpParser\PhpVersion;
use PhpParser\Token;
final class AttributeEmulator extends TokenEmulator {
public function getPhpVersion(): PhpVersion {
return PhpVersion::fromComponents(8, 0);
}
public function isEmulationNeeded(string $code): bool {
return strpos($code, '#[') !== false;
}
public function emulate(string $code, array $tokens): array {
// We need to manually iterate and manage a count because we'll change
// the tokens array on the way.
for ($i = 0, $c = count($tokens); $i < $c; ++$i) {
$token = $tokens[$i];
if ($token->text === '#' && isset($tokens[$i + 1]) && $tokens[$i + 1]->text === '[') {
array_splice($tokens, $i, 2, [
new Token(\T_ATTRIBUTE, '#[', $token->line, $token->pos),
]);
$c--;
continue;
}
}
return $tokens;
}
public function reverseEmulate(string $code, array $tokens): array {
// TODO
return $tokens;
}
public function preprocessCode(string $code, array &$patches): string {
$pos = 0;
while (false !== $pos = strpos($code, '#[', $pos)) {
// Replace #[ with %[
$code[$pos] = '%';
$patches[] = [$pos, 'replace', '#'];
$pos += 2;
}
return $code;
}
}