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<?php |
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declare(strict_types=1); |
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namespace Plaisio\Console\Kernel\Helper; |
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use Composer\Autoload\ClassLoader; |
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use SetBased\Exception\RuntimeException; |
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/** |
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* Utility class for classes. |
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*/ |
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class ClassHelper |
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{ |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Returns the first line of the class declaration in the source code of a class. |
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* |
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* @param string[] $lines The source code of the class. |
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* @param string $class The name of the class. |
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* |
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* @return int |
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*/ |
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public static function classDeclarationLine(array $lines, string $class): int |
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{ |
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$pattern = sprintf('/(\w\s+)?class\s+%s/', preg_quote($class)); |
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$line = self::searchPattern($lines, $pattern); |
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if ($line===null) |
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{ |
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throw new RuntimeException('Unable to find declaration of class %s', $class); |
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} |
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return $line; |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Returns the path to the source file of a class. |
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* |
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* @param string $class The fully qualified name of the class. |
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* |
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* @return string |
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*/ |
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public static function classPath(string $class): string |
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{ |
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/** @var ClassLoader $loader */ |
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$loader = spl_autoload_functions()[0][0]; |
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// Find the source file of the constant class. |
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$filename = $loader->findFile(ltrim($class, '\\')); |
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if ($filename===false) |
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{ |
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throw new RuntimeException("ClassLoader can not find class '%s'", $class); |
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} |
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return realpath($filename); |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Returns the line of a property declaration in the source code of a class. |
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* |
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* @param string[] $lines The source code of the class. |
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* @param string $name The name of the property. |
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* |
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* @return int |
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*/ |
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public static function propertyDeclarationLine(array $lines, string $name): int |
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{ |
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$pattern = sprintf('/^.*@property(-read)? (.+) (%s) (.*)$/', |
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preg_quote($name)); |
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$line = self::searchPattern($lines, $pattern); |
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if ($line===null) |
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{ |
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throw new RuntimeException('Unable to find property %s', $name); |
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} |
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return $line; |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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/** |
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* Returns the first line matching a regular expression. |
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* |
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* @param array $lines The source code of the class. |
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* @param string $pattern The regular expression. |
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* |
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* @return int|null |
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*/ |
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private static function searchPattern(array $lines, string $pattern): ?int |
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{ |
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foreach ($lines as $key => $line) |
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{ |
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if (preg_match($pattern, $line)==1) |
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{ |
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return $key; |
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} |
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} |
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return null; |
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} |
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//-------------------------------------------------------------------------------------------------------------------- |
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} |
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//---------------------------------------------------------------------------------------------------------------------- |
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PhpPlaisio /
console-kernel
