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- <?php
- declare(strict_types=1);
- /*
- * This file is part of PHP CS Fixer.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- * Dariusz Rumiński <dariusz.ruminski@gmail.com>
- *
- * This source file is subject to the MIT license that is bundled
- * with this source code in the file LICENSE.
- */
- namespace PhpCsFixer;
- use PhpCsFixer\Fixer\FixerInterface;
- use PhpCsFixer\Tokenizer\Token;
- /**
- * @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
- * @author Graham Campbell <hello@gjcampbell.co.uk>
- * @author Odín del Río <odin.drp@gmail.com>
- *
- * @internal
- *
- * @deprecated This is a God Class anti-pattern. Don't expand it. It is fine to use logic that is already here (that's why we don't trigger deprecation warnings), but over time logic should be moved to dedicated, single-responsibility classes.
- */
- final class Utils
- {
- /**
- * @var array<string, true>
- */
- private static array $deprecations = [];
- private function __construct()
- {
- // cannot create instance of util. class
- }
- /**
- * Converts a camel cased string to a snake cased string.
- */
- public static function camelCaseToUnderscore(string $string): string
- {
- return mb_strtolower(Preg::replace('/(?<!^)(?<!_)((?=[\p{Lu}][^\p{Lu}])|(?<![\p{Lu}])(?=[\p{Lu}]))/', '_', $string));
- }
- /**
- * Calculate the trailing whitespace.
- *
- * What we're doing here is grabbing everything after the final newline.
- */
- public static function calculateTrailingWhitespaceIndent(Token $token): string
- {
- if (!$token->isWhitespace()) {
- throw new \InvalidArgumentException(sprintf('The given token must be whitespace, got "%s".', $token->getName()));
- }
- $str = strrchr(
- str_replace(["\r\n", "\r"], "\n", $token->getContent()),
- "\n"
- );
- if (false === $str) {
- return '';
- }
- return ltrim($str, "\n");
- }
- /**
- * Perform stable sorting using provided comparison function.
- *
- * Stability is ensured by using Schwartzian transform.
- *
- * @template T
- * @template R
- *
- * @param list<T> $elements
- * @param callable(T): R $getComparedValue a callable that takes a single element and returns the value to compare
- * @param callable(R, R): int $compareValues a callable that compares two values
- *
- * @return list<T>
- */
- public static function stableSort(array $elements, callable $getComparedValue, callable $compareValues): array
- {
- array_walk($elements, static function (&$element, int $index) use ($getComparedValue): void {
- $element = [$element, $index, $getComparedValue($element)];
- });
- usort($elements, static function ($a, $b) use ($compareValues): int {
- $comparison = $compareValues($a[2], $b[2]);
- if (0 !== $comparison) {
- return $comparison;
- }
- return $a[1] <=> $b[1];
- });
- return array_map(static fn (array $item) => $item[0], $elements);
- }
- /**
- * Sort fixers by their priorities.
- *
- * @param list<FixerInterface> $fixers
- *
- * @return list<FixerInterface>
- */
- public static function sortFixers(array $fixers): array
- {
- // Schwartzian transform is used to improve the efficiency and avoid
- // `usort(): Array was modified by the user comparison function` warning for mocked objects.
- return self::stableSort(
- $fixers,
- static fn (FixerInterface $fixer): int => $fixer->getPriority(),
- static fn (int $a, int $b): int => $b <=> $a
- );
- }
- /**
- * Join names in natural language using specified wrapper (double quote by default).
- *
- * @param list<string> $names
- *
- * @throws \InvalidArgumentException
- */
- public static function naturalLanguageJoin(array $names, string $wrapper = '"'): string
- {
- if (0 === \count($names)) {
- throw new \InvalidArgumentException('Array of names cannot be empty.');
- }
- if (\strlen($wrapper) > 1) {
- throw new \InvalidArgumentException('Wrapper should be a single-char string or empty.');
- }
- $names = array_map(static fn (string $name): string => sprintf('%2$s%1$s%2$s', $name, $wrapper), $names);
- $last = array_pop($names);
- if (\count($names) > 0) {
- return implode(', ', $names).' and '.$last;
- }
- return $last;
- }
- /**
- * Join names in natural language wrapped in backticks, e.g. `a`, `b` and `c`.
- *
- * @param list<string> $names
- *
- * @throws \InvalidArgumentException
- */
- public static function naturalLanguageJoinWithBackticks(array $names): string
- {
- return self::naturalLanguageJoin($names, '`');
- }
- public static function isFutureModeEnabled(): bool
- {
- return filter_var(
- getenv('PHP_CS_FIXER_FUTURE_MODE'),
- FILTER_VALIDATE_BOOL
- );
- }
- public static function triggerDeprecation(\Exception $futureException): void
- {
- if (self::isFutureModeEnabled()) {
- throw new \RuntimeException(
- 'Your are using something deprecated, see previous exception. Aborting execution because `PHP_CS_FIXER_FUTURE_MODE` environment variable is set.',
- 0,
- $futureException
- );
- }
- $message = $futureException->getMessage();
- self::$deprecations[$message] = true;
- @trigger_error($message, E_USER_DEPRECATED);
- }
- /**
- * @return list<string>
- */
- public static function getTriggeredDeprecations(): array
- {
- $triggeredDeprecations = array_keys(self::$deprecations);
- sort($triggeredDeprecations);
- return $triggeredDeprecations;
- }
- /**
- * @param mixed $value
- */
- public static function toString($value): string
- {
- return \is_array($value)
- ? self::arrayToString($value)
- : self::scalarToString($value);
- }
- /**
- * @param mixed $value
- */
- private static function scalarToString($value): string
- {
- $str = var_export($value, true);
- return Preg::replace('/\bNULL\b/', 'null', $str);
- }
- /**
- * @param array<array-key, mixed> $value
- */
- private static function arrayToString(array $value): string
- {
- if (0 === \count($value)) {
- return '[]';
- }
- $isHash = !array_is_list($value);
- $str = '[';
- foreach ($value as $k => $v) {
- if ($isHash) {
- $str .= self::scalarToString($k).' => ';
- }
- $str .= \is_array($v)
- ? self::arrayToString($v).', '
- : self::scalarToString($v).', ';
- }
- return substr($str, 0, -2).']';
- }
- }
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