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<?php |
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declare(strict_types = 1); |
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/* |
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* This file is part of Symplify |
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* Copyright (c) 2016 Tomas Votruba (http://tomasvotruba.cz). |
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*/ |
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namespace ZenifyCodingStandard\Helper\Commenting; |
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use PHP_CodeSniffer_File; |
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/** |
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* Inspired by https://github.com/slevomat/coding-standard/blob/4f81f58625bf86bd91f7fc6f8e4d12160bf03c7c/SlevomatCodingStandard/Helpers/FunctionHelper.php |
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*/ |
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final class FunctionHelper |
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{ |
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/** |
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* @return string|NULL |
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*/ |
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public static function findReturnTypeHint(PHP_CodeSniffer_File $codeSnifferFile, int $functionPointer) |
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{ |
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$tokens = $codeSnifferFile->getTokens(); |
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$isAbstract = self::isAbstract($codeSnifferFile, $functionPointer); |
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$colonToken = $isAbstract |
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? $codeSnifferFile->findNext( |
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T_COLON, $tokens[$functionPointer]['parenthesis_closer'] + 1, NULL, FALSE, NULL, TRUE |
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) |
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: $codeSnifferFile->findNext( |
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T_COLON, $tokens[$functionPointer]['parenthesis_closer'] + 1, $tokens[$functionPointer]['scope_opener'] - 1 |
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); |
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if ($colonToken === FALSE) { |
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return NULL; |
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} |
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$returnTypeHint = NULL; |
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$nextToken = $colonToken; |
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do { |
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$nextToken = $isAbstract |
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? $codeSnifferFile->findNext([T_WHITESPACE, T_COMMENT, T_SEMICOLON], $nextToken + 1, NULL, TRUE, NULL, TRUE) |
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: $codeSnifferFile->findNext( |
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[T_WHITESPACE, T_COMMENT], $nextToken + 1, $tokens[$functionPointer]['scope_opener'] - 1, TRUE |
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); |
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$isTypeHint = $nextToken !== FALSE; |
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if ($isTypeHint) { |
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$returnTypeHint .= $tokens[$nextToken]['content']; |
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} |
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} while ($isTypeHint); |
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return $returnTypeHint; |
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} |
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public static function isAbstract(PHP_CodeSniffer_File $codeSnifferFile, int $functionPointer): bool |
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{ |
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if ( ! isset($codeSnifferFile->getTokens()[$functionPointer]['scope_opener'])) { |
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return FALSE; |
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} |
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if ($codeSnifferFile->getTokens()[$functionPointer]['scope_opener'] >= 39) { |
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return TRUE; |
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} |
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return FALSE; |
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} |
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} |
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