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<?php |
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namespace BestIt\CodeSniffer\Helper; |
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use BestIt\CodeSniffer\File; |
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use BestIt\Sniffs\Commenting\AbstractDocSniff; |
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/** |
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* Class DocDescriptionHelper |
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* |
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* @package BestIt\Helper |
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* @author Nick Lubisch <[email protected]> |
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*/ |
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class DocDescriptionHelper |
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{ |
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/** |
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* The php code sniffer file. |
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* |
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* @var File |
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*/ |
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private $file; |
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/** |
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* The doc comment helper. |
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* |
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* @var DocHelper |
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*/ |
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private $docHelper; |
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/** |
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* The token stack of the cs file. |
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* |
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* @var array |
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*/ |
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private $tokens; |
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/** |
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* The doc comment summary helper. |
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* |
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* @var DocSummaryHelper |
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*/ |
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private $summaryHelper; |
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/** |
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* Indicator if a description is required. |
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* |
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* @var bool |
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*/ |
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private $descriptionRequired; |
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/** |
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* DocSummaryHelper constructor. |
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* |
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* @param File $file The php cs file |
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* @param DocHelper $docHelper The doc comment helper |
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* @param DocSummaryHelper $summaryHelper The doc comment summary helper |
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*/ |
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public function __construct(File $file, DocHelper $docHelper, DocSummaryHelper $summaryHelper) |
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{ |
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$this->file = $file; |
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$this->tokens = $file->getTokens(); |
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$this->docHelper = $docHelper; |
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$this->summaryHelper = $summaryHelper; |
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} |
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/** |
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* Checks for comment description. |
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* |
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* @param bool $descriptionRequired Indicator if the description is required. |
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* |
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* @return void |
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*/ |
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public function checkCommentDescription($descriptionRequired) |
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{ |
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$this->descriptionRequired = $descriptionRequired; |
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$commentStartToken = $this->docHelper->getCommentStartToken(); |
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$commentEndToken = $this->docHelper->getCommentEndToken(); |
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$summaryPtr = $this->summaryHelper->getCommentSummaryPointer(); |
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if ($summaryPtr === -1) { |
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return; |
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} |
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$hasTags = count($commentStartToken['comment_tags']) > 0; |
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$descriptionStartPtr = $this->getCommentDescriptionStartPointer(); |
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if ($descriptionStartPtr === -1) { |
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$this->addDescriptionNotFoundError($summaryPtr); |
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return; |
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} |
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$descriptionEndPtr = $this->getCommentDescriptionEndPointer(); |
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$descEndToken = $this->tokens[$descriptionEndPtr]; |
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$this->checkCommentDescriptionUcFirst($descriptionStartPtr); |
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$this->checkCommentDescriptionLineLength($descriptionStartPtr, $descriptionEndPtr); |
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//Fix no or too much lines after description. |
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$toLine = $commentEndToken['line']; |
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$expectedLines = 0; |
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if ($hasTags) { |
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$firstTagPtr = array_shift($commentStartToken['comment_tags']); |
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$firstTagToken = $this->tokens[$firstTagPtr]; |
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$toLine = $firstTagToken['line']; |
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$expectedLines = 1; |
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} |
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$diffLines = $toLine - $descEndToken['line'] - 1; |
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if ($diffLines === $expectedLines) { |
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return; |
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} |
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if ($diffLines < $expectedLines && $hasTags) { |
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$fixNoLine = $this->file->addFixableError( |
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AbstractDocSniff::MESSAGE_NO_LINE_AFTER_DESCRIPTION, |
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$descriptionEndPtr, |
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AbstractDocSniff::CODE_NO_LINE_AFTER_DESCRIPTION |
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); |
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if ($fixNoLine) { |
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$this->fixNoLineAfterDescription(); |
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} |
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return; |
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} |
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$fixMuchLines = $this->file->addFixableError( |
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AbstractDocSniff::MESSAGE_MUCH_LINES_AFTER_DESCRIPTION, |
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$descriptionEndPtr, |
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AbstractDocSniff::CODE_MUCH_LINES_AFTER_DESCRIPTION |
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); |
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if ($fixMuchLines) { |
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$this->fixMuchLinesAfterDescription($descEndToken['line'] + 1, $toLine - 1); |
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} |
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} |
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/** |
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* Checks if the description starts with a capital letter. |
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* |
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* @param int $descriptionStartPtr Pointer to the start of the description. |
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* |
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* @return void |
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*/ |
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View Code Duplication |
private function checkCommentDescriptionUcFirst($descriptionStartPtr) |
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{ |
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$descStartToken = $this->tokens[$descriptionStartPtr]; |
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$descriptionContent = $descStartToken['content']; |
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if (ucfirst($descriptionContent) === $descriptionContent) { |
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return; |
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} |
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$fixUcFirst = $this->file->addFixableError( |
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AbstractDocSniff::MESSAGE_DESCRIPTION_UC_FIRST, |
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$descriptionStartPtr, |
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AbstractDocSniff::CODE_DESCRIPTION_UC_FIRST |
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); |
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if ($fixUcFirst) { |
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$this->fixDescriptionUcFirst($descriptionStartPtr); |
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} |
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} |
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/** |
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* Checks the line length of each line of the comment description. |
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* |
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* @param int $descriptionStartPtr Pointer to the start of the description. |
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* @param int $descriptionEndPtr Pointer to the end of the description. |
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* |
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* @return void |
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*/ |
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private function checkCommentDescriptionLineLength($descriptionStartPtr, $descriptionEndPtr) |
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{ |
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$diffTokens = array_slice( |
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$this->tokens, |
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$descriptionStartPtr, |
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$descriptionEndPtr - $descriptionStartPtr + 2, |
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true |
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); |
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foreach ($diffTokens as $diffToken) { |
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if ($diffToken['type'] !== 'T_DOC_COMMENT_WHITESPACE') { |
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continue; |
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} |
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if ($diffToken['content'] !== $this->file->getEolChar()) { |
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continue; |
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} |
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if ($diffToken['column'] > AbstractDocSniff::MAX_LINE_LENGTH) { |
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$this->file->addErrorOnLine( |
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AbstractDocSniff::MESSAGE_DESCRIPTION_TOO_LONG, |
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$diffToken['line'], |
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AbstractDocSniff::CODE_DESCRIPTION_TOO_LONG |
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); |
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} |
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} |
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} |
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/** |
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* Returns pointer to the end of the description. |
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* |
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* @return int Pointer to the end of the description or false |
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*/ |
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View Code Duplication |
private function getCommentDescriptionEndPointer() |
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{ |
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$descriptionStartPtr = $this->getCommentDescriptionStartPointer(); |
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$commentStartToken = $this->docHelper->getCommentStartToken(); |
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$commentEndPtr = $this->docHelper->getCommentEndPointer(); |
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//If no tags found, possible end of search is the starting tag of the doc comment. |
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if (count($commentStartToken['comment_tags']) === 0) { |
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return $this->file->findPrevious( |
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[T_DOC_COMMENT_STRING], |
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$commentEndPtr - 1, |
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$descriptionStartPtr |
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); |
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} |
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//else its the pointer of the first comment tag found. |
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$firstTagPtr = array_shift($commentStartToken['comment_tags']); |
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return $this->file->findPrevious( |
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[T_DOC_COMMENT_STRING], |
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$firstTagPtr - 1, |
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$descriptionStartPtr |
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); |
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} |
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/** |
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* Returns pointer to the start of the long description or false if not found. |
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* |
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* @return int Pointer to the start of the description or -1 |
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*/ |
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View Code Duplication |
private function getCommentDescriptionStartPointer() |
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{ |
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$commentStartToken = $this->docHelper->getCommentStartToken(); |
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$commentEndPtr = $this->docHelper->getCommentEndPointer(); |
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$summaryPtr = $this->summaryHelper->getCommentSummaryPointer(); |
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//If no tags the possible end of search is the closing tag of the doc comment. |
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if (count($commentStartToken['comment_tags']) === 0) { |
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return $this->file->findNext( |
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[T_DOC_COMMENT_STRING], |
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$summaryPtr + 1, |
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$commentEndPtr |
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); |
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} |
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//else its the pointer of the first comment tag found. |
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$firstTagPtr = array_shift($commentStartToken['comment_tags']); |
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return $this->file->findNext( |
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[T_DOC_COMMENT_STRING], |
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$summaryPtr + 1, |
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$firstTagPtr - 1 |
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); |
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} |
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/** |
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* Adds error when description is not found. |
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* |
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* @param int $summaryPtr Pointer to summary token. |
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* |
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* @return void |
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*/ |
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private function addDescriptionNotFoundError($summaryPtr) |
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{ |
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if ($this->descriptionRequired) { |
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$this->file->addError( |
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AbstractDocSniff::MESSAGE_DESCRIPTION_NOT_FOUND, |
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$summaryPtr, |
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AbstractDocSniff::CODE_DESCRIPTION_NOT_FOUND |
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); |
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} |
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} |
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/** |
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* Fixes no line after description. |
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* |
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* @return void |
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*/ |
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View Code Duplication |
private function fixNoLineAfterDescription() |
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{ |
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$descEndPtr = $this->getCommentDescriptionEndPointer(); |
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$descEndToken = $this->tokens[$descEndPtr]; |
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$this->file->getFixer()->beginChangeset(); |
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$this->file->getFixer()->addContent( |
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$descEndPtr, |
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$this->file->getEolChar() . str_repeat(' ', $descEndToken['level']) . ' *' |
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); |
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$this->file->getFixer()->endChangeset(); |
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} |
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/** |
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* Fixes much lines after description. |
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* |
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* @param int $startLine Line to start removing |
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* @param int $endLine Line to end removing |
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* |
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* @return void |
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*/ |
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private function fixMuchLinesAfterDescription($startLine, $endLine) |
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{ |
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$this->file->getFixer()->beginChangeset(); |
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$this->file->getFixer()->removeLines($startLine, $endLine); |
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$this->file->getFixer()->endChangeset(); |
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} |
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/** |
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* Fixes the description uc first. |
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* |
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* @param int $descriptionStartPtr Pointer to the description start |
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* |
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* @return void |
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*/ |
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4 |
View Code Duplication |
private function fixDescriptionUcFirst($descriptionStartPtr) |
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{ |
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$descStartToken = $this->tokens[$descriptionStartPtr]; |
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$this->file->getFixer()->beginChangeset(); |
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$this->file->getFixer()->replaceToken( |
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$descriptionStartPtr, |
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ucfirst($descStartToken['content']) |
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); |
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$this->file->getFixer()->endChangeset(); |
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} |
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} |
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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.