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<?php |
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/** |
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* Created by solly [19.10.17 1:27] |
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*/ |
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namespace insolita\codestat\lib\classdetect; |
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use insolita\codestat\lib\contracts\ClassDetectorInterface; |
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/** |
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* The Realization honestly copy-pasted |
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* from \SebastianBergmann\PHPLOC\Analyser::preProcessFile() |
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*/ |
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class TokenizerDetector implements ClassDetectorInterface |
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{ |
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public function resolveClassName($filePath) |
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{ |
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$className = $this->processFile($filePath); |
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if (\is_null($className)) { |
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return null; |
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} else { |
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return $className; |
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} |
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} |
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/** |
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* @param array $tokens |
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* @param int $i |
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* |
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* @return string|false |
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*/ |
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protected function getNamespaceName(array $tokens, $i) |
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{ |
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if (isset($tokens[$i + 2][1])) { |
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$namespace = $tokens[$i + 2][1]; |
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for ($j = $i + 3; ; $j += 2) { |
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if (isset($tokens[$j]) && $tokens[$j][0] == T_NS_SEPARATOR) { |
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$namespace .= '\\' . $tokens[$j + 1][1]; |
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} else { |
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break; |
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} |
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} |
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return $namespace; |
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} |
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return false; |
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} |
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/** |
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* @param string|false $namespace |
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* @param array $tokens |
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* @param int $i |
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* |
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* @return string |
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*/ |
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protected function getClassName($namespace, array $tokens, $i) |
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{ |
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$i += 2; |
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if (!isset($tokens[$i][1])) { |
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return 'invalid class name'; |
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} |
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$className = $tokens[$i][1]; |
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$namespaced = $className === '\\'; |
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while (is_array($tokens[$i + 1]) && $tokens[$i + 1][0] !== T_WHITESPACE) { |
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$className .= $tokens[++$i][1]; |
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} |
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if (!$namespaced && $namespace !== false) { |
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$className = $namespace . '\\' . $className; |
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} |
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return $className; |
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} |
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/** |
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* Extract namespace and class from file |
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* |
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* @param string $filename |
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* Return FQN className |
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* |
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* @return string|null |
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*/ |
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protected function processFile($filename) |
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{ |
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$tokens = token_get_all(file_get_contents($filename)); |
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$numTokens = count($tokens); |
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$namespace = null; |
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$className = null; |
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for ($i = 0; $i < $numTokens; $i++) { |
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if (is_string($tokens[$i])) { |
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continue; |
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} |
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switch ($tokens[$i][0]) { |
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case T_NAMESPACE: |
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$namespace = $this->getNamespaceName($tokens, $i); |
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break; |
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case T_CLASS: |
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case T_TRAIT: |
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case T_INTERFACE: |
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if (!$this->isClassDeclaration($tokens, $i)) { |
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break; |
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} |
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$className = $this->getClassName($namespace, $tokens, $i); |
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break; |
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} |
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} |
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return $className; |
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} |
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/** |
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* @param array $tokens |
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* @param int $start |
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* |
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* @return bool |
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*/ |
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private function getPreviousNonWhitespaceTokenPos(array $tokens, $start) |
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{ |
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if (isset($tokens[$start - 1])) { |
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if (isset($tokens[$start - 1][0]) |
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&& $tokens[$start - 1][0] == T_WHITESPACE |
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&& isset($tokens[$start - 2])) { |
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return $start - 2; |
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} else { |
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return $start - 1; |
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} |
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} |
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return false; |
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} |
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/** |
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* @param array $tokens |
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* @param int $i |
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* |
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* @return bool |
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*/ |
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private function isClassDeclaration(array $tokens, $i) |
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{ |
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$n = $this->getPreviousNonWhitespaceTokenPos($tokens, $i); |
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return !isset($tokens[$n]) |
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|| !is_array($tokens[$n]) |
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|| !in_array($tokens[$n][0], [T_DOUBLE_COLON, T_NEW], true); |
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} |
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} |
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Insolita /
yii2-codestat
Loading history...
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.