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Introducing coding standards validation.
This commit is contained in:
Marcos Schratzenstaller
committed by
Nathan Rice
Nathan Rice
parent
6e40c921ab
commit
fd504d41ac
Vendored
+336
@@ -0,0 +1,336 @@
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<?php
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/**
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* \PHPCompatibility\Sniffs\Interfaces\NewInterfacesSniff.
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*
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* @category PHP
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* @package PHPCompatibility
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* @author Juliette Reinders Folmer <phpcompatibility_nospam@adviesenzo.nl>
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*/
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namespace PHPCompatibility\Sniffs\Interfaces;
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use PHPCompatibility\AbstractNewFeatureSniff;
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use PHPCompatibility\PHPCSHelper;
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use PHP_CodeSniffer_File as File;
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/**
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* \PHPCompatibility\Sniffs\Interfaces\NewInterfacesSniff.
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*
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* @category PHP
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* @package PHPCompatibility
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* @author Juliette Reinders Folmer <phpcompatibility_nospam@adviesenzo.nl>
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*/
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class NewInterfacesSniff extends AbstractNewFeatureSniff
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{
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/**
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* A list of new interfaces, not present in older versions.
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*
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* The array lists : version number with false (not present) or true (present).
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* If's sufficient to list the first version where the interface appears.
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*
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* @var array(string => array(string => int|string|null))
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*/
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protected $newInterfaces = array(
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'Traversable' => array(
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'4.4' => false,
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'5.0' => true,
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),
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'Reflector' => array(
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'4.4' => false,
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'5.0' => true,
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),
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'Countable' => array(
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'5.0' => false,
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'5.1' => true,
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),
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'OuterIterator' => array(
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'5.0' => false,
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'5.1' => true,
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),
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'RecursiveIterator' => array(
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'5.0' => false,
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'5.1' => true,
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),
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'SeekableIterator' => array(
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'5.0' => false,
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'5.1' => true,
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),
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'Serializable' => array(
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'5.0' => false,
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'5.1' => true,
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),
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'SplObserver' => array(
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'5.0' => false,
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'5.1' => true,
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),
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'SplSubject' => array(
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'5.0' => false,
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'5.1' => true,
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),
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'JsonSerializable' => array(
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'5.3' => false,
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'5.4' => true,
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),
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'SessionHandlerInterface' => array(
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'5.3' => false,
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'5.4' => true,
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),
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'DateTimeInterface' => array(
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'5.4' => false,
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'5.5' => true,
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),
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'SessionIdInterface' => array(
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'5.5.0' => false,
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'5.5.1' => true,
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),
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'Throwable' => array(
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'5.6' => false,
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'7.0' => true,
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),
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'SessionUpdateTimestampHandlerInterface' => array(
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'5.6' => false,
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'7.0' => true,
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),
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);
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/**
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* A list of methods which cannot be used in combination with particular interfaces.
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*
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* @var array(string => array(string => string))
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*/
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protected $unsupportedMethods = array(
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'Serializable' => array(
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'__sleep' => 'http://php.net/serializable',
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'__wakeup' => 'http://php.net/serializable',
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),
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);
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/**
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* Returns an array of tokens this test wants to listen for.
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*
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* @return array
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*/
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public function register()
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{
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// Handle case-insensitivity of interface names.
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$this->newInterfaces = $this->arrayKeysToLowercase($this->newInterfaces);
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$this->unsupportedMethods = $this->arrayKeysToLowercase($this->unsupportedMethods);
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$targets = array(
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T_CLASS,
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T_FUNCTION,
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T_CLOSURE,
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);
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if (defined('T_ANON_CLASS')) {
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$targets[] = T_ANON_CLASS;
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}
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if (defined('T_RETURN_TYPE')) {
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$targets[] = T_RETURN_TYPE;
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}
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return $targets;
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}
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/**
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* Processes this test, when one of its tokens is encountered.
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*
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* @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
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* @param int $stackPtr The position of the current token in
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* the stack passed in $tokens.
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*
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* @return void
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*/
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public function process(File $phpcsFile, $stackPtr)
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{
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$tokens = $phpcsFile->getTokens();
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switch ($tokens[$stackPtr]['type']) {
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case 'T_CLASS':
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case 'T_ANON_CLASS':
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$this->processClassToken($phpcsFile, $stackPtr);
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break;
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case 'T_FUNCTION':
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case 'T_CLOSURE':
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$this->processFunctionToken($phpcsFile, $stackPtr);
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// Deal with older PHPCS versions which don't recognize return type hints
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// as well as newer PHPCS versions (3.3.0+) where the tokenization has changed.
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$returnTypeHint = $this->getReturnTypeHintToken($phpcsFile, $stackPtr);
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if ($returnTypeHint !== false) {
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$this->processReturnTypeToken($phpcsFile, $returnTypeHint);
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}
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break;
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case 'T_RETURN_TYPE':
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$this->processReturnTypeToken($phpcsFile, $stackPtr);
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break;
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default:
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// Deliberately left empty.
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break;
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}
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}
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/**
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* Processes this test for when a class token is encountered.
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*
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* - Detect classes implementing the new interfaces.
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* - Detect classes implementing the new interfaces with unsupported functions.
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*
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* @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
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* @param int $stackPtr The position of the current token in
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* the stack passed in $tokens.
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*
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* @return void
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*/
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private function processClassToken(File $phpcsFile, $stackPtr)
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{
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$interfaces = PHPCSHelper::findImplementedInterfaceNames($phpcsFile, $stackPtr);
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if (is_array($interfaces) === false || $interfaces === array()) {
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return;
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}
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$tokens = $phpcsFile->getTokens();
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$checkMethods = false;
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if (isset($tokens[$stackPtr]['scope_closer'])) {
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$checkMethods = true;
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$scopeCloser = $tokens[$stackPtr]['scope_closer'];
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}
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foreach ($interfaces as $interface) {
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$interface = ltrim($interface, '\\');
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$interfaceLc = strtolower($interface);
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if (isset($this->newInterfaces[$interfaceLc]) === true) {
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$itemInfo = array(
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'name' => $interface,
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'nameLc' => $interfaceLc,
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);
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$this->handleFeature($phpcsFile, $stackPtr, $itemInfo);
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}
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if ($checkMethods === true && isset($this->unsupportedMethods[$interfaceLc]) === true) {
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$nextFunc = $stackPtr;
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while (($nextFunc = $phpcsFile->findNext(T_FUNCTION, ($nextFunc + 1), $scopeCloser)) !== false) {
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$funcName = $phpcsFile->getDeclarationName($nextFunc);
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$funcNameLc = strtolower($funcName);
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if ($funcNameLc === '') {
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continue;
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}
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if (isset($this->unsupportedMethods[$interfaceLc][$funcNameLc]) === true) {
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$error = 'Classes that implement interface %s do not support the method %s(). See %s';
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$errorCode = $this->stringToErrorCode($interface) . 'UnsupportedMethod';
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$data = array(
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$interface,
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$funcName,
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$this->unsupportedMethods[$interfaceLc][$funcNameLc],
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);
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$phpcsFile->addError($error, $nextFunc, $errorCode, $data);
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}
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}
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}
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}
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}
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/**
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* Processes this test for when a function token is encountered.
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*
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* - Detect new interfaces when used as a type hint.
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*
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* @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
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* @param int $stackPtr The position of the current token in
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* the stack passed in $tokens.
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*
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* @return void
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*/
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private function processFunctionToken(File $phpcsFile, $stackPtr)
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{
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$typeHints = $this->getTypeHintsFromFunctionDeclaration($phpcsFile, $stackPtr);
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if (empty($typeHints) || is_array($typeHints) === false) {
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return;
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}
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foreach ($typeHints as $hint) {
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$typeHintLc = strtolower($hint);
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if (isset($this->newInterfaces[$typeHintLc]) === true) {
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$itemInfo = array(
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'name' => $hint,
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'nameLc' => $typeHintLc,
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);
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$this->handleFeature($phpcsFile, $stackPtr, $itemInfo);
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}
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}
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}
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/**
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* Processes this test for when a return type token is encountered.
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*
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* - Detect new interfaces when used as a return type declaration.
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*
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* @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
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* @param int $stackPtr The position of the current token in
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* the stack passed in $tokens.
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*
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* @return void
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*/
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private function processReturnTypeToken(File $phpcsFile, $stackPtr)
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{
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$returnTypeHint = $this->getReturnTypeHintName($phpcsFile, $stackPtr);
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$returnTypeHint = ltrim($returnTypeHint, '\\');
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$returnTypeHintLc = strtolower($returnTypeHint);
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if (isset($this->newInterfaces[$returnTypeHintLc]) === false) {
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return;
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}
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// Still here ? Then this is a return type declaration using a new interface.
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$itemInfo = array(
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'name' => $returnTypeHint,
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'nameLc' => $returnTypeHintLc,
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);
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$this->handleFeature($phpcsFile, $stackPtr, $itemInfo);
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}
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/**
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* Get the relevant sub-array for a specific item from a multi-dimensional array.
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*
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* @param array $itemInfo Base information about the item.
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*
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* @return array Version and other information about the item.
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*/
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public function getItemArray(array $itemInfo)
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{
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return $this->newInterfaces[$itemInfo['nameLc']];
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}
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/**
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* Get the error message template for this sniff.
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*
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* @return string
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*/
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protected function getErrorMsgTemplate()
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{
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return 'The built-in interface ' . parent::getErrorMsgTemplate();
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}
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}
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