home/alospiesjs/www/apis/youtube/vendor/psy/psysh/src/CodeCleaner/ValidClassNamePass.php000060400000023344151164043670025534 0ustar00conditionalScopes++; return; } if ($this->conditionalScopes === 0) { if ($node instanceof Class_) { $this->validateClassStatement($node); } elseif ($node instanceof Interface_) { $this->validateInterfaceStatement($node); } elseif ($node instanceof Trait_) { $this->validateTraitStatement($node); } } } /** * @param Node $node */ public function leaveNode(Node $node) { if (self::isConditional($node)) { $this->conditionalScopes--; return; } } private static function isConditional(Node $node): bool { return $node instanceof If_ || $node instanceof While_ || $node instanceof Do_ || $node instanceof Switch_ || $node instanceof Ternary; } /** * Validate a class definition statement. * * @param Class_ $stmt */ protected function validateClassStatement(Class_ $stmt) { $this->ensureCanDefine($stmt, self::CLASS_TYPE); if (isset($stmt->extends)) { $this->ensureClassExists($this->getFullyQualifiedName($stmt->extends), $stmt); } $this->ensureInterfacesExist($stmt->implements, $stmt); } /** * Validate an interface definition statement. * * @param Interface_ $stmt */ protected function validateInterfaceStatement(Interface_ $stmt) { $this->ensureCanDefine($stmt, self::INTERFACE_TYPE); $this->ensureInterfacesExist($stmt->extends, $stmt); } /** * Validate a trait definition statement. * * @param Trait_ $stmt */ protected function validateTraitStatement(Trait_ $stmt) { $this->ensureCanDefine($stmt, self::TRAIT_TYPE); } /** * Ensure that no class, interface or trait name collides with a new definition. * * @throws FatalErrorException * * @param Stmt $stmt * @param string $scopeType */ protected function ensureCanDefine(Stmt $stmt, string $scopeType = self::CLASS_TYPE) { // Anonymous classes don't have a name, and uniqueness shouldn't be enforced. if ($stmt->name === null) { return; } $name = $this->getFullyQualifiedName($stmt->name); // check for name collisions $errorType = null; if ($this->classExists($name)) { $errorType = self::CLASS_TYPE; } elseif ($this->interfaceExists($name)) { $errorType = self::INTERFACE_TYPE; } elseif ($this->traitExists($name)) { $errorType = self::TRAIT_TYPE; } if ($errorType !== null) { throw $this->createError(\sprintf('%s named %s already exists', \ucfirst($errorType), $name), $stmt); } // Store creation for the rest of this code snippet so we can find local // issue too $this->currentScope[\strtolower($name)] = $scopeType; } /** * Ensure that a referenced class exists. * * @throws FatalErrorException * * @param string $name * @param Stmt $stmt */ protected function ensureClassExists(string $name, Stmt $stmt) { if (!$this->classExists($name)) { throw $this->createError(\sprintf('Class \'%s\' not found', $name), $stmt); } } /** * Ensure that a referenced class _or interface_ exists. * * @throws FatalErrorException * * @param string $name * @param Stmt $stmt */ protected function ensureClassOrInterfaceExists(string $name, Stmt $stmt) { if (!$this->classExists($name) && !$this->interfaceExists($name)) { throw $this->createError(\sprintf('Class \'%s\' not found', $name), $stmt); } } /** * Ensure that a referenced class _or trait_ exists. * * @throws FatalErrorException * * @param string $name * @param Stmt $stmt */ protected function ensureClassOrTraitExists(string $name, Stmt $stmt) { if (!$this->classExists($name) && !$this->traitExists($name)) { throw $this->createError(\sprintf('Class \'%s\' not found', $name), $stmt); } } /** * Ensure that a statically called method exists. * * @throws FatalErrorException * * @param string $class * @param string $name * @param Stmt $stmt */ protected function ensureMethodExists(string $class, string $name, Stmt $stmt) { $this->ensureClassOrTraitExists($class, $stmt); // let's pretend all calls to self, parent and static are valid if (\in_array(\strtolower($class), ['self', 'parent', 'static'])) { return; } // ... and all calls to classes defined right now if ($this->findInScope($class) === self::CLASS_TYPE) { return; } // if method name is an expression, give it a pass for now if ($name instanceof Expr) { return; } if (!\method_exists($class, $name) && !\method_exists($class, '__callStatic')) { throw $this->createError(\sprintf('Call to undefined method %s::%s()', $class, $name), $stmt); } } /** * Ensure that a referenced interface exists. * * @throws FatalErrorException * * @param Interface_[] $interfaces * @param Stmt $stmt */ protected function ensureInterfacesExist(array $interfaces, Stmt $stmt) { foreach ($interfaces as $interface) { /** @var string $name */ $name = $this->getFullyQualifiedName($interface); if (!$this->interfaceExists($name)) { throw $this->createError(\sprintf('Interface \'%s\' not found', $name), $stmt); } } } /** * Get a symbol type key for storing in the scope name cache. * * @deprecated No longer used. Scope type should be passed into ensureCanDefine directly. * @codeCoverageIgnore * * @param Stmt $stmt * * @return string */ protected function getScopeType(Stmt $stmt): string { if ($stmt instanceof Class_) { return self::CLASS_TYPE; } elseif ($stmt instanceof Interface_) { return self::INTERFACE_TYPE; } elseif ($stmt instanceof Trait_) { return self::TRAIT_TYPE; } } /** * Check whether a class exists, or has been defined in the current code snippet. * * Gives `self`, `static` and `parent` a free pass. * * @param string $name * * @return bool */ protected function classExists(string $name): bool { // Give `self`, `static` and `parent` a pass. This will actually let // some errors through, since we're not checking whether the keyword is // being used in a class scope. if (\in_array(\strtolower($name), ['self', 'static', 'parent'])) { return true; } return \class_exists($name) || $this->findInScope($name) === self::CLASS_TYPE; } /** * Check whether an interface exists, or has been defined in the current code snippet. * * @param string $name * * @return bool */ protected function interfaceExists(string $name): bool { return \interface_exists($name) || $this->findInScope($name) === self::INTERFACE_TYPE; } /** * Check whether a trait exists, or has been defined in the current code snippet. * * @param string $name * * @return bool */ protected function traitExists(string $name): bool { return \trait_exists($name) || $this->findInScope($name) === self::TRAIT_TYPE; } /** * Find a symbol in the current code snippet scope. * * @param string $name * * @return string|null */ protected function findInScope(string $name) { $name = \strtolower($name); if (isset($this->currentScope[$name])) { return $this->currentScope[$name]; } } /** * Error creation factory. * * @param string $msg * @param Stmt $stmt * * @return FatalErrorException */ protected function createError(string $msg, Stmt $stmt): FatalErrorException { return new FatalErrorException($msg, 0, \E_ERROR, null, $stmt->getLine()); } }