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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the box project. |
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* |
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* (c) Kevin Herrera <[email protected]> |
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* Théo Fidry <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace KevinGH\Box\Compactor; |
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use Exception; |
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use KevinGH\Box\Annotation\Convert\ToString; |
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use KevinGH\Box\Annotation\Dump; |
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use KevinGH\Box\Annotation\Tokenizer; |
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use KevinGH\Box\Annotation\Tokens; |
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use const T_COMMENT; |
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use const T_DOC_COMMENT; |
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use const T_WHITESPACE; |
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use function count; |
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use function in_array; |
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use function is_string; |
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use function preg_replace; |
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use function str_repeat; |
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use function strpos; |
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use function substr_count; |
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use function token_get_all; |
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/** |
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* A PHP source code compactor copied from Composer. |
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* |
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* @see https://github.com/composer/composer/blob/a8df30c09be550bffc37ba540fb7c7f0383c3944/src/Composer/Compiler.php#L214 |
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* |
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* @author Kevin Herrera <[email protected]> |
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* @author Fabien Potencier <[email protected]> |
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* @author Jordi Boggiano <[email protected]> |
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* @author Théo Fidry <[email protected]> |
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* @private |
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*/ |
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final class Php extends FileExtensionCompactor |
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{ |
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private $converter; |
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private $tokenizer; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __construct(Tokenizer $tokenizer, array $extensions = ['php']) |
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{ |
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parent::__construct($extensions); |
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$this->converter = new ToString(); |
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$this->tokenizer = $tokenizer; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function compactContent(string $contents): string |
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{ |
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// TODO: refactor this piece of code |
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// - strip down blank spaces |
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// - remove useless spaces |
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// - strip down comments except Doctrine style annotations unless whitelisted -> BC break to document; |
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// Alternatively provide an easy way to strip down all "regular" annotations such as @package, @param |
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// & co. |
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// - completely remove comments & docblocks if empty |
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// TODO regarding the doc: it current has its own `annotations` entry. Maybe it would be best to |
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// include it as a sub element of `compactors` |
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$output = ''; |
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foreach (token_get_all($contents) as $token) { |
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if (is_string($token)) { |
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$output .= $token; |
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} elseif (in_array($token[0], [T_COMMENT, T_DOC_COMMENT], true)) { |
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if ($this->tokenizer && false !== strpos($token[1], '@')) { |
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try { |
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$output .= $this->compactAnnotations($token[1]); |
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} catch (Exception $exception) { |
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$output .= $token[1]; |
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} |
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} else { |
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$output .= str_repeat("\n", substr_count($token[1], "\n")); |
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} |
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} elseif (T_WHITESPACE === $token[0]) { |
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// reduce wide spaces |
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$whitespace = preg_replace('{[ \t]+}', ' ', $token[1]); |
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// normalize newlines to \n |
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$whitespace = preg_replace('{(?:\r\n|\r|\n)}', "\n", $whitespace); |
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// trim leading spaces |
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$whitespace = preg_replace('{\n +}', "\n", $whitespace); |
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$output .= $whitespace; |
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} else { |
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$output .= $token[1]; |
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} |
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} |
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return $output; |
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} |
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private function compactAnnotations(string $docblock): string |
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{ |
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$annotations = []; |
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$index = -1; |
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$inside = 0; |
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$nodes = $this->tokenizer->parse($docblock); |
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if (0 === $nodes->getChildrenNumber()) { |
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return str_repeat("\n", substr_count($docblock, "\n")); |
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} |
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// foreach ($nodes->getChildren() as $child) { |
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// if ((0 === $inside) && (DocLexer::T_AT === $child[0])) { |
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// ++$index; |
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// } elseif (DocLexer::T_OPEN_PARENTHESIS === $child[0]) { |
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// ++$inside; |
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// } elseif (DocLexer::T_CLOSE_PARENTHESIS === $child[0]) { |
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// --$inside; |
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// } |
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// |
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// if (!isset($annotations[$index])) { |
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// $annotations[$index] = []; |
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// } |
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// |
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// $annotations[$index][] = $child; |
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// } |
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$breaks = substr_count($docblock, "\n"); |
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$docblock = '/**'; |
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$compacted = (new Dump())->dumpAnnotations($nodes); |
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foreach ($compacted as $annotation) { |
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$docblock .= "\n".$annotation; |
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} |
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$breaks -= count($compacted); |
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if ($breaks > 0) { |
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$docblock .= str_repeat("\n", $breaks - 1); |
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$docblock .= "\n*/"; |
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} else { |
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$docblock .= ' */'; |
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} |
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return $docblock; |
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} |
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} |
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humbug /
box
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