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<?php |
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use Nette\PhpGenerator\ClassType; |
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use Nette\PhpGenerator\PsrPrinter; |
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use Psalm\DocComment; |
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use Psalm\Internal\Analyzer\CommentAnalyzer; |
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use Webmozart\Assert\Assert; |
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require_once __DIR__ . '/vendor/autoload.php'; |
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$g = new ExtraGenerator(); |
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$g->generate(); |
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final class ExtraGenerator |
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{ |
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public function generate() |
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{ |
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$class = new ReflectionClass(Assert::class); |
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$staticMethods = $class->getMethods(ReflectionMethod::IS_STATIC); |
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$supportedMethods = $this->getSupportedMethods($class); |
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$file = $this->createFile(); |
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$namespace = $this->createNamespace($file, $class); |
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$newClass = $this->createClass($namespace); |
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foreach ($staticMethods as $method) { |
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if (!$this->isPublicMethod($method)) { |
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continue; |
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} |
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$this->createNullOr($method, $supportedMethods, $newClass); |
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$this->createAll($method, $supportedMethods, $newClass); |
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} |
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$printer = new PsrPrinter(); |
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$fp = fopen(__DIR__ . '/src/Extra.php', 'wb'); |
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fwrite($fp, $printer->printFile($file)); |
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fclose($fp); |
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} |
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private function createWrapper(ReflectionMethod $method, array $supportedMethods, ClassType $newClass, $methodNameTemplate, $typeTemplate) |
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{ |
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$newMethodName = sprintf($methodNameTemplate, ucfirst($method->name)); |
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if (!in_array($newMethodName, $supportedMethods, true)) { |
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return; |
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} |
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$comment = $method->getDocComment(); |
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$p = DocComment::parse($comment); |
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if (!in_array('psalm-assert', array_keys($p['specials']))) { |
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return; |
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} |
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$newMethod = $newClass->addMethod($newMethodName) |
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->setStatic() |
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; |
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$parameters = $method->getParameters(); |
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$parametersCall = []; |
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foreach ($parameters as $parameter) { |
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$newParameter = $newMethod->addParameter($parameter->name); |
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if ($parameter->isDefaultValueAvailable()) { |
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$newParameter->setDefaultValue($parameter->getDefaultValue()); |
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} |
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$parametersCall[] = sprintf('$%s', $parameter->name); |
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} |
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$newMethod->addBody(sprintf('parent::%s(%s);', $newMethodName, implode(', ', $parametersCall))); |
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foreach ($p['specials'] as $key => $values) { |
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foreach ($values as $value) { |
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$parts = CommentAnalyzer::splitDocLine($value); |
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$type = $parts[0]; |
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if ($key === 'psalm-assert') { |
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$type = sprintf($typeTemplate, $type); |
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} |
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$comment = sprintf('@%s %s', $key, $type); |
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if (count($parts) >= 2) { |
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$comment .= sprintf(' %s', implode(' ', array_slice($parts, 1))); |
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} |
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$newMethod->addComment($comment); |
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} |
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} |
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} |
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private function createNullOr(ReflectionMethod $method, array $supportedMethods, ClassType $newClass) |
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{ |
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$this->createWrapper($method, $supportedMethods, $newClass, 'nullOr%s', 'null|%s'); |
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} |
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private function createAll(ReflectionMethod $method, array $supportedMethods, ClassType $newClass) |
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{ |
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$this->createWrapper($method, $supportedMethods, $newClass, 'all%s', 'array<array-key,%s>'); |
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} |
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private function getSupportedMethods(ReflectionClass $class) |
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{ |
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$comment = $class->getDocComment(); |
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preg_match_all('~@method static void ([^(]+)~', $comment, $matches); |
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$temporaryUnsupported = [ |
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'nullOrNotInstanceOf', |
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'allNotInstanceOf', |
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'nullOrNotEmpty', |
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'allNotEmpty', |
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'allNotNull', |
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'nullOrSame', |
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'allSame', |
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'nullOrUnicodeLetters', |
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'allUnicodeLetters', |
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]; |
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return array_diff($matches[1], $temporaryUnsupported); |
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} |
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private function createFile() |
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{ |
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$file = new \Nette\PhpGenerator\PhpFile(); |
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$file->addComment('Automatically generated'); |
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return $file; |
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} |
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private function createNamespace(\Nette\PhpGenerator\PhpFile $file, ReflectionClass $class) |
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{ |
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return $file->addNamespace($class->getNamespaceName()); |
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} |
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private function createClass(\Nette\PhpGenerator\PhpNamespace $namespace) |
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{ |
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return $namespace->addClass('Extra') |
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->setExtends(Assert::class); |
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} |
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private function isPublicMethod(ReflectionMethod $method) |
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{ |
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$modifiers = $method->getModifiers(); |
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return ($modifiers & ReflectionMethod::IS_PUBLIC) !== 0; |
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} |
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} |
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webmozart /
assert
Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a
@returnannotation as described here.