/**
  * @param \PHP_CodeSniffer_File $phpcsFile
  * @param integer $openTagPointer
  * @return \SlevomatCodingStandard\Helpers\UseStatement[] canonicalName(string) => useStatement(\SlevomatCodingStandard\Helpers\UseStatement)
  */
 public static function getUseStatements(PHP_CodeSniffer_File $phpcsFile, $openTagPointer)
 {
     $names = [];
     foreach (self::getUseStatementPointers($phpcsFile, $openTagPointer) as $usePointer) {
         $name = self::getNameAsReferencedInClassFromUse($phpcsFile, $usePointer);
         $useStatement = new UseStatement($name, self::getFullyQualifiedTypeNameFromUse($phpcsFile, $usePointer), $usePointer);
         $names[$useStatement->getCanonicalNameAsReferencedInFile()] = $useStatement;
     }
     return $names;
 }
 /**
  * @param \PHP_CodeSniffer_File $phpcsFile
  * @param integer $openTagPointer
  */
 public function process(PHP_CodeSniffer_File $phpcsFile, $openTagPointer)
 {
     $unusedNames = UseStatementHelper::getUseStatements($phpcsFile, $openTagPointer);
     $referencedNames = ReferencedNameHelper::getAllReferencedNames($phpcsFile, $openTagPointer, $this->searchAnnotations);
     foreach ($referencedNames as $referencedName) {
         $name = $referencedName->getNameAsReferencedInFile();
         $pointer = $referencedName->getPointer();
         $nameParts = NamespaceHelper::getNameParts($name);
         $nameAsReferencedInFile = $nameParts[0];
         $normalizedNameAsReferencedInFile = UseStatement::normalizedNameAsReferencedInFile($nameAsReferencedInFile);
         if (!NamespaceHelper::isFullyQualifiedName($name) && isset($unusedNames[$normalizedNameAsReferencedInFile])) {
             if ($unusedNames[$normalizedNameAsReferencedInFile]->getNameAsReferencedInFile() !== $nameAsReferencedInFile) {
                 $phpcsFile->addError(sprintf('Case of reference name %s and use statement %s do not match', $nameAsReferencedInFile, $unusedNames[$normalizedNameAsReferencedInFile]->getNameAsReferencedInFile()), $pointer, self::CODE_MISMATCHING_CASE);
             }
             unset($unusedNames[$normalizedNameAsReferencedInFile]);
         }
     }
     foreach ($unusedNames as $value) {
         $fullName = $value->getFullyQualifiedTypeName();
         if ($value->getNameAsReferencedInFile() !== $fullName) {
             if ($value->getNameAsReferencedInFile() !== NamespaceHelper::getUnqualifiedNameFromFullyQualifiedName($fullName)) {
                 $fullName .= sprintf(' (as %s)', $value->getNameAsReferencedInFile());
             }
         }
         $fix = $phpcsFile->addFixableError(sprintf('Type %s is not used in this file', $fullName), $value->getPointer(), self::CODE_UNUSED_USE);
         if ($fix) {
             $phpcsFile->fixer->beginChangeset();
             $endPointer = $phpcsFile->findNext(T_SEMICOLON, $value->getPointer()) + 1;
             for ($i = $value->getPointer(); $i <= $endPointer; $i++) {
                 $phpcsFile->fixer->replaceToken($i, '');
             }
             $phpcsFile->fixer->endChangeset();
         }
     }
 }
 /**
  * @param \PHP_CodeSniffer_File $phpcsFile
  * @param integer $openTagPointer
  */
 public function process(PHP_CodeSniffer_File $phpcsFile, $openTagPointer)
 {
     $referencedNames = ReferencedNameHelper::getAllReferencedNames($phpcsFile, $openTagPointer);
     $useStatements = UseStatementHelper::getUseStatements($phpcsFile, $openTagPointer);
     foreach ($referencedNames as $referencedName) {
         $pointer = $referencedName->getPointer();
         $name = $referencedName->getNameAsReferencedInFile();
         $normalizedName = UseStatement::normalizedNameAsReferencedInFile($name);
         if (isset($useStatements[$normalizedName]) && $referencedName->hasSameUseStatementType($useStatements[$normalizedName])) {
             $useStatement = $useStatements[$normalizedName];
             if (in_array($useStatement->getFullyQualifiedTypeName(), $this->getIgnoredNames(), true) || !StringHelper::endsWith($useStatement->getFullyQualifiedTypeName(), 'Exception') && $useStatement->getFullyQualifiedTypeName() !== 'Throwable' && (!StringHelper::endsWith($useStatement->getFullyQualifiedTypeName(), 'Error') || NamespaceHelper::hasNamespace($useStatement->getFullyQualifiedTypeName())) && !in_array($useStatement->getFullyQualifiedTypeName(), $this->getSpecialExceptionNames(), true)) {
                 continue;
             }
         } else {
             $fileNamespace = NamespaceHelper::findCurrentNamespaceName($phpcsFile, $pointer);
             $canonicalName = $name;
             if (!NamespaceHelper::isFullyQualifiedName($name) && $fileNamespace !== null) {
                 $canonicalName = sprintf('%s%s%s', $fileNamespace, NamespaceHelper::NAMESPACE_SEPARATOR, $name);
             }
             if (in_array($canonicalName, $this->getIgnoredNames(), true) || !StringHelper::endsWith($name, 'Exception') && $name !== 'Throwable' && (!StringHelper::endsWith($canonicalName, 'Error') || NamespaceHelper::hasNamespace($canonicalName)) && !in_array($canonicalName, $this->getSpecialExceptionNames(), true)) {
                 continue;
             }
         }
         if (!NamespaceHelper::isFullyQualifiedName($name)) {
             $phpcsFile->addError(sprintf('Exception %s should be referenced via a fully qualified name', $name), $pointer, self::CODE_NON_FULLY_QUALIFIED_EXCEPTION);
         }
     }
 }
 /**
  * @param \SlevomatCodingStandard\Helpers\UseStatement $a
  * @param \SlevomatCodingStandard\Helpers\UseStatement $b
  * @return integer
  */
 private function compareUseStatements(UseStatement $a, UseStatement $b)
 {
     if (!$a->hasSameType($b)) {
         return $a->compareByType($b);
     }
     $aName = $a->getFullyQualifiedTypeName();
     $bName = $b->getFullyQualifiedTypeName();
     $i = 0;
     for (; $i < min(strlen($aName), strlen($bName)); $i++) {
         if ($this->isSpecialCharacter($aName[$i]) && !$this->isSpecialCharacter($bName[$i])) {
             return -1;
         } elseif (!$this->isSpecialCharacter($aName[$i]) && $this->isSpecialCharacter($bName[$i])) {
             return 1;
         }
         if (is_numeric($aName[$i]) && is_numeric($bName[$i])) {
             break;
         }
         $cmp = strcasecmp($aName[$i], $bName[$i]);
         if ($cmp !== 0 || $aName[$i] !== $bName[$i] && strtolower($aName[$i]) === strtolower($bName[$i])) {
             return $cmp;
         }
     }
     return strnatcasecmp(substr($aName, $i), substr($bName, $i));
 }
 /**
  * @param \PHP_CodeSniffer_File $phpcsFile
  * @param integer $openTagPointer
  * @return \SlevomatCodingStandard\Helpers\UseStatement[] canonicalName(string) => useStatement(\SlevomatCodingStandard\Helpers\UseStatement)
  */
 public static function getUseStatements(PHP_CodeSniffer_File $phpcsFile, $openTagPointer)
 {
     $names = [];
     $tokens = $phpcsFile->getTokens();
     foreach (self::getUseStatementPointers($phpcsFile, $openTagPointer) as $usePointer) {
         $nextTokenFromUsePointer = TokenHelper::findNextEffective($phpcsFile, $usePointer + 1);
         $type = UseStatement::TYPE_DEFAULT;
         if ($tokens[$nextTokenFromUsePointer]['code'] === T_STRING) {
             if ($tokens[$nextTokenFromUsePointer]['content'] === 'const') {
                 $type = UseStatement::TYPE_CONSTANT;
             } elseif ($tokens[$nextTokenFromUsePointer]['content'] === 'function') {
                 $type = UseStatement::TYPE_FUNCTION;
             }
         }
         $name = self::getNameAsReferencedInClassFromUse($phpcsFile, $usePointer);
         $useStatement = new UseStatement($name, self::getFullyQualifiedTypeNameFromUse($phpcsFile, $usePointer), $usePointer, $type);
         $names[$useStatement->getCanonicalNameAsReferencedInFile()] = $useStatement;
     }
     return $names;
 }