Viewing file:  AsymmetricVisibilityTokenEmulator.php (3.27 KB) -rw-rw-rw-
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<?php declare(strict_types=1);
namespace PhpParser\Lexer\TokenEmulator;
use PhpParser\PhpVersion;
use PhpParser\Token;
final class AsymmetricVisibilityTokenEmulator extends TokenEmulator {
public function getPhpVersion(): PhpVersion {
return PhpVersion::fromComponents(8, 4);
}
public function isEmulationNeeded(string $code): bool {
$code = strtolower($code);
return strpos($code, 'public(set)') !== false ||
strpos($code, 'protected(set)') !== false ||
strpos($code, 'private(set)') !== false;
}
public function emulate(string $code, array $tokens): array {
$map = [
\T_PUBLIC => \T_PUBLIC_SET,
\T_PROTECTED => \T_PROTECTED_SET,
\T_PRIVATE => \T_PRIVATE_SET,
];
for ($i = 0, $c = count($tokens); $i < $c; ++$i) {
$token = $tokens[$i];
if (isset($map[$token->id]) && $i + 3 < $c && $tokens[$i + 1]->text === '(' &&
$tokens[$i + 2]->id === \T_STRING && \strtolower($tokens[$i + 2]->text) === 'set' &&
$tokens[$i + 3]->text === ')' &&
$this->isKeywordContext($tokens, $i)
) {
array_splice($tokens, $i, 4, [
new Token(
$map[$token->id], $token->text . '(' . $tokens[$i + 2]->text . ')',
$token->line, $token->pos),
]);
$c -= 3;
}
}
return $tokens;
}
public function reverseEmulate(string $code, array $tokens): array {
$reverseMap = [
\T_PUBLIC_SET => \T_PUBLIC,
\T_PROTECTED_SET => \T_PROTECTED,
\T_PRIVATE_SET => \T_PRIVATE,
];
for ($i = 0, $c = count($tokens); $i < $c; ++$i) {
$token = $tokens[$i];
if (isset($reverseMap[$token->id]) &&
\preg_match('/(public|protected|private)\((set)\)/i', $token->text, $matches)
) {
[, $modifier, $set] = $matches;
$modifierLen = \strlen($modifier);
array_splice($tokens, $i, 1, [
new Token($reverseMap[$token->id], $modifier, $token->line, $token->pos),
new Token(\ord('('), '(', $token->line, $token->pos + $modifierLen),
new Token(\T_STRING, $set, $token->line, $token->pos + $modifierLen + 1),
new Token(\ord(')'), ')', $token->line, $token->pos + $modifierLen + 4),
]);
$i += 3;
$c += 3;
}
}
return $tokens;
}
/** @param Token[] $tokens */
protected function isKeywordContext(array $tokens, int $pos): bool {
$prevToken = $this->getPreviousNonSpaceToken($tokens, $pos);
if ($prevToken === null) {
return false;
}
return $prevToken->id !== \T_OBJECT_OPERATOR
&& $prevToken->id !== \T_NULLSAFE_OBJECT_OPERATOR;
}
/** @param Token[] $tokens */
private function getPreviousNonSpaceToken(array $tokens, int $start): ?Token {
for ($i = $start - 1; $i >= 0; --$i) {
if ($tokens[$i]->id === T_WHITESPACE) {
continue;
}
return $tokens[$i];
}
return null;
}
}
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