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<?php |
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/** |
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* This file is part of the Ray.Aop package |
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* |
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* @license http://opensource.org/licenses/bsd-license.php BSD |
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*/ |
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namespace Ray\Aop; |
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use PhpParser\BuilderFactory; |
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use PhpParser\Comment\Doc; |
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use PhpParser\Node\Stmt; |
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use PhpParser\Node\Stmt\Class_; |
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use PhpParser\NodeTraverser; |
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use PhpParser\Parser; |
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use PhpParser\PrettyPrinter\Standard; |
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final class CodeGen implements CodeGenInterface |
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{ |
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/** |
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* @var \PHPParser\Parser |
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*/ |
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private $parser; |
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/** |
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* @var \PHPParser\BuilderFactory |
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*/ |
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private $factory; |
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/** |
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* @var \PHPParser\PrettyPrinter\Standard |
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*/ |
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private $printer; |
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/** |
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* @var CodeGenMethod |
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*/ |
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private $codeGenMethod; |
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/** |
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* @param \PHPParser\Parser $parser |
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* @param \PHPParser\BuilderFactory $factory |
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* @param \PHPParser\PrettyPrinter\Standard $printer |
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*/ |
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public function __construct( |
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Parser $parser, |
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BuilderFactory $factory, |
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Standard $printer |
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) { |
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$this->parser = $parser; |
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$this->factory = $factory; |
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$this->printer = $printer; |
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$this->codeGenMethod = new CodeGenMethod($parser, $factory, $printer); |
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} |
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/** |
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* @param string $class |
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* @param \ReflectionClass $sourceClass |
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* |
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* @return string |
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*/ |
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public function generate($class, \ReflectionClass $sourceClass, BindInterface $bind) |
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{ |
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$methods = $this->codeGenMethod->getMethods($sourceClass, $bind); |
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$stmt = $this |
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->getClass($class, $sourceClass) |
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->addStmts($methods) |
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->getNode(); |
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$stmt = $this->addClassDocComment($stmt, $sourceClass); |
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$code = $this->printer->prettyPrint([$stmt]); |
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$statements = $this->getUseStatements($sourceClass); |
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return $statements . $code; |
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} |
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/** |
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* @param \ReflectionClass $class |
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* |
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* @return string |
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*/ |
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private function getUseStatements(\ReflectionClass $class) |
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{ |
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$traverser = new NodeTraverser(); |
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$useStmtsVisitor = new CodeGenVisitor(); |
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$traverser->addVisitor($useStmtsVisitor); |
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// parse |
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$stmts = $this->parser->parse(file_get_contents($class->getFileName())); |
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// traverse |
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$traverser->traverse($stmts); |
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// pretty print |
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$code = $this->printer->prettyPrint($useStmtsVisitor()); |
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return (string) $code; |
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} |
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/** |
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* Return class statement |
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* |
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* @param string $newClassName |
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* @param \ReflectionClass $class |
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* |
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* @return \PhpParser\Builder\Class_ |
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*/ |
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private function getClass($newClassName, \ReflectionClass $class) |
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{ |
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$parentClass = $class->name; |
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$builder = $this->factory |
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->class($newClassName) |
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->extend($parentClass) |
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->implement('Ray\Aop\WeavedInterface') |
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->addStmt( |
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$this->factory->property('isIntercepting')->makePrivate()->setDefault(true) |
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)->addStmt( |
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$this->factory->property('bind')->makePublic() |
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); |
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return $builder; |
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} |
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/** |
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* Add class doc comment |
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* |
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* @param Class_ $node |
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* @param \ReflectionClass $class |
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* |
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* @return \PHPParser\Node\Stmt\Class_ |
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*/ |
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private function addClassDocComment(Class_ $node, \ReflectionClass $class) |
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{ |
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$docComment = $class->getDocComment(); |
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if ($docComment) { |
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$node->setAttribute('comments', [new Doc($docComment)]); |
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} |
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return $node; |
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} |
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} |
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ray-di /
Ray.Aop
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.