TYPO3 /
Fluid
Complex classes like TemplateParser often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use TemplateParser, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 24 | class TemplateParser |
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| 25 | { |
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| 26 | |||
| 27 | /** |
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| 28 | * The following two constants are used for tracking whether we are currently |
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| 29 | * parsing ViewHelper arguments or not. This is used to parse arrays only as |
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| 30 | * ViewHelper argument. |
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| 31 | */ |
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| 32 | const CONTEXT_INSIDE_VIEWHELPER_ARGUMENTS = 1; |
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| 33 | const CONTEXT_OUTSIDE_VIEWHELPER_ARGUMENTS = 2; |
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| 34 | |||
| 35 | /** |
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| 36 | * Whether or not the escaping interceptors are active |
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| 37 | * |
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| 38 | * @var boolean |
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| 39 | */ |
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| 40 | protected $escapingEnabled = true; |
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| 41 | |||
| 42 | /** |
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| 43 | * @var Configuration |
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| 44 | */ |
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| 45 | protected $configuration; |
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| 46 | |||
| 47 | /** |
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| 48 | * @var array |
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| 49 | */ |
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| 50 | protected $settings; |
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| 51 | |||
| 52 | /** |
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| 53 | * @var RenderingContextInterface |
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| 54 | */ |
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| 55 | protected $renderingContext; |
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| 56 | |||
| 57 | /** |
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| 58 | * @var integer |
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| 59 | */ |
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| 60 | protected $pointerLineNumber = 1; |
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| 61 | |||
| 62 | /** |
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| 63 | * @var integer |
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| 64 | */ |
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| 65 | protected $pointerLineCharacter = 1; |
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| 66 | |||
| 67 | /** |
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| 68 | * @var string |
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| 69 | */ |
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| 70 | protected $pointerTemplateCode = null; |
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| 71 | |||
| 72 | /** |
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| 73 | * @var ParsedTemplateInterface[] |
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| 74 | */ |
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| 75 | protected $parsedTemplates = []; |
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| 76 | |||
| 77 | /** |
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| 78 | * @param RenderingContextInterface $renderingContext |
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| 79 | * @return void |
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| 80 | */ |
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| 81 | public function setRenderingContext(RenderingContextInterface $renderingContext) |
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| 82 | { |
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| 83 | $this->renderingContext = $renderingContext; |
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| 84 | $this->configuration = $renderingContext->buildParserConfiguration(); |
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| 85 | } |
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| 86 | |||
| 87 | /** |
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| 88 | * Returns an array of current line number, character in line and reference template code; |
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| 89 | * for extraction when catching parser-related Exceptions during parsing. |
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| 90 | * |
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| 91 | * @return array |
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| 92 | */ |
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| 93 | public function getCurrentParsingPointers() |
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| 94 | { |
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| 95 | return [$this->pointerLineNumber, $this->pointerLineCharacter, $this->pointerTemplateCode]; |
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| 96 | } |
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| 97 | |||
| 98 | /** |
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| 99 | * @return boolean |
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| 100 | */ |
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| 101 | public function isEscapingEnabled() |
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| 102 | { |
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| 103 | return $this->escapingEnabled; |
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| 104 | } |
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| 105 | |||
| 106 | /** |
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| 107 | * @param boolean $escapingEnabled |
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| 108 | * @return void |
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| 109 | */ |
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| 110 | public function setEscapingEnabled($escapingEnabled) |
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| 111 | { |
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| 112 | $this->escapingEnabled = (boolean) $escapingEnabled; |
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| 113 | } |
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| 114 | |||
| 115 | /** |
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| 116 | * Parses a given template string and returns a parsed template object. |
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| 117 | * |
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| 118 | * The resulting ParsedTemplate can then be rendered by calling evaluate() on it. |
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| 119 | * |
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| 120 | * Normally, you should use a subclass of AbstractTemplateView instead of calling the |
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| 121 | * TemplateParser directly. |
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| 122 | * |
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| 123 | * @param string $templateString The template to parse as a string |
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| 124 | * @param string|null $templateIdentifier If the template has an identifying string it can be passed here to improve error reporting. |
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| 125 | * @return ParsingState Parsed template |
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| 126 | * @throws Exception |
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| 127 | */ |
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| 128 | public function parse($templateString, $templateIdentifier = null) |
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| 129 | { |
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| 130 | if (!is_string($templateString)) { |
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| 131 | throw new Exception('Parse requires a template string as argument, ' . gettype($templateString) . ' given.', 1224237899); |
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| 132 | } |
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| 133 | try { |
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| 134 | $this->reset(); |
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| 135 | |||
| 136 | $templateString = $this->preProcessTemplateSource($templateString); |
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| 137 | |||
| 138 | $splitTemplate = $this->splitTemplateAtDynamicTags($templateString); |
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| 139 | $parsingState = $this->buildObjectTree($splitTemplate, self::CONTEXT_OUTSIDE_VIEWHELPER_ARGUMENTS); |
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| 140 | } catch (Exception $error) { |
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| 141 | throw $this->createParsingRelatedExceptionWithContext($error, $templateIdentifier); |
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| 142 | } |
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| 143 | $this->parsedTemplates[$templateIdentifier] = $parsingState; |
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| 144 | return $parsingState; |
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| 145 | } |
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| 146 | |||
| 147 | /** |
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| 148 | * @param \Exception $error |
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| 149 | * @param string $templateIdentifier |
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| 150 | * @throws \Exception |
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| 151 | */ |
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| 152 | public function createParsingRelatedExceptionWithContext(\Exception $error, $templateIdentifier) |
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| 153 | { |
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| 154 | list ($line, $character, $templateCode) = $this->getCurrentParsingPointers(); |
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| 155 | $exceptionClass = get_class($error); |
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| 156 | return new $exceptionClass( |
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| 157 | sprintf( |
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| 158 | 'Fluid parse error in template %s, line %d at character %d. Error: %s (error code %d). Template source chunk: %s', |
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| 159 | $templateIdentifier, |
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| 160 | $line, |
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| 161 | $character, |
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| 162 | $error->getMessage(), |
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| 163 | $error->getCode(), |
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| 164 | $templateCode |
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| 165 | ), |
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| 166 | $error->getCode(), |
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| 167 | $error |
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| 168 | ); |
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| 169 | } |
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| 170 | |||
| 171 | /** |
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| 172 | * @param string $templateIdentifier |
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| 173 | * @param \Closure $templateSourceClosure Closure which returns the template source if needed |
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| 174 | * @return ParsedTemplateInterface |
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| 175 | */ |
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| 176 | public function getOrParseAndStoreTemplate($templateIdentifier, $templateSourceClosure) |
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| 177 | { |
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| 178 | $compiler = $this->renderingContext->getTemplateCompiler(); |
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| 179 | if (isset($this->parsedTemplates[$templateIdentifier])) { |
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| 180 | $parsedTemplate = $this->parsedTemplates[$templateIdentifier]; |
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| 181 | } elseif ($compiler->has($templateIdentifier)) { |
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| 182 | $parsedTemplate = $compiler->get($templateIdentifier); |
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| 183 | } else { |
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| 184 | $parsedTemplate = $this->parse( |
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| 185 | $templateSourceClosure($this, $this->renderingContext->getTemplatePaths()), |
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| 186 | $templateIdentifier |
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| 187 | ); |
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| 188 | $parsedTemplate->setIdentifier($templateIdentifier); |
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| 189 | $this->parsedTemplates[$templateIdentifier] = $parsedTemplate; |
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| 190 | if ($parsedTemplate->isCompilable()) { |
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| 191 | try { |
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| 192 | $compiler->store($templateIdentifier, $parsedTemplate); |
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| 193 | } catch (StopCompilingException $stop) { |
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| 194 | $this->renderingContext->getErrorHandler()->handleCompilerError($stop); |
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| 195 | $parsedTemplate->setCompilable(false); |
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| 196 | return $parsedTemplate; |
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| 197 | } |
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| 198 | } |
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| 199 | } |
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| 200 | return $parsedTemplate; |
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| 201 | } |
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| 202 | |||
| 203 | /** |
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| 204 | * Pre-process the template source, making all registered TemplateProcessors |
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| 205 | * do what they need to do with the template source before it is parsed. |
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| 206 | * |
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| 207 | * @param string $templateSource |
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| 208 | * @return string |
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| 209 | */ |
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| 210 | protected function preProcessTemplateSource($templateSource) |
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| 211 | { |
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| 212 | foreach ($this->renderingContext->getTemplateProcessors() as $templateProcessor) { |
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| 213 | $templateSource = $templateProcessor->preProcessSource($templateSource); |
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| 214 | } |
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| 215 | return $templateSource; |
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| 216 | } |
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| 217 | |||
| 218 | /** |
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| 219 | * Resets the parser to its default values. |
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| 220 | * |
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| 221 | * @return void |
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| 222 | */ |
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| 223 | protected function reset() |
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| 224 | { |
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| 225 | $this->escapingEnabled = true; |
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| 226 | $this->pointerLineNumber = 1; |
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| 227 | $this->pointerLineCharacter = 1; |
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| 228 | } |
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| 229 | |||
| 230 | /** |
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| 231 | * Splits the template string on all dynamic tags found. |
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| 232 | * |
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| 233 | * @param string $templateString Template string to split. |
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| 234 | * @return array Splitted template |
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| 235 | */ |
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| 236 | protected function splitTemplateAtDynamicTags($templateString) |
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| 237 | { |
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| 238 | return preg_split(Patterns::$SPLIT_PATTERN_TEMPLATE_DYNAMICTAGS, $templateString, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY); |
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| 239 | } |
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| 240 | |||
| 241 | /** |
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| 242 | * Build object tree from the split template |
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| 243 | * |
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| 244 | * @param array $splitTemplate The split template, so that every tag with a namespace declaration is already a seperate array element. |
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| 245 | * @param integer $context one of the CONTEXT_* constants, defining whether we are inside or outside of ViewHelper arguments currently. |
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| 246 | * @return ParsingState |
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| 247 | * @throws Exception |
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| 248 | */ |
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| 249 | protected function buildObjectTree(array $splitTemplate, $context) |
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| 250 | { |
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| 251 | $state = $this->getParsingState(); |
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| 252 | $previousBlock = ''; |
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| 253 | |||
| 254 | foreach ($splitTemplate as $templateElement) { |
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| 255 | if ($context === self::CONTEXT_OUTSIDE_VIEWHELPER_ARGUMENTS) { |
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| 256 | // Store a neat reference to the outermost chunk of Fluid template code. |
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| 257 | // Don't store the reference if parsing ViewHelper arguments object tree; |
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| 258 | // we want the reference code to contain *all* of the ViewHelper call. |
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| 259 | $this->pointerTemplateCode = $templateElement; |
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| 260 | } |
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| 261 | $this->pointerLineNumber += substr_count($templateElement, PHP_EOL); |
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| 262 | $this->pointerLineCharacter = strlen(substr($previousBlock, strrpos($previousBlock, PHP_EOL))) + 1; |
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| 263 | $previousBlock = $templateElement; |
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| 264 | $matchedVariables = []; |
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| 265 | |||
| 266 | if (preg_match(Patterns::$SCAN_PATTERN_TEMPLATE_VIEWHELPERTAG, $templateElement, $matchedVariables) > 0) { |
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| 267 | if ($this->openingViewHelperTagHandler( |
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| 268 | $state, |
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| 269 | $matchedVariables['NamespaceIdentifier'], |
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| 270 | $matchedVariables['MethodIdentifier'], |
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| 271 | $matchedVariables['Attributes'], |
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| 272 | ($matchedVariables['Selfclosing'] === '' ? false : true), |
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| 273 | $templateElement |
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| 274 | )) { |
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| 275 | continue; |
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| 276 | } |
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| 277 | } elseif (preg_match(Patterns::$SCAN_PATTERN_TEMPLATE_CLOSINGVIEWHELPERTAG, $templateElement, $matchedVariables) > 0) { |
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| 278 | if ($this->closingViewHelperTagHandler( |
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| 279 | $state, |
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| 280 | $matchedVariables['NamespaceIdentifier'], |
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| 281 | $matchedVariables['MethodIdentifier'] |
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| 282 | )) { |
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| 283 | continue; |
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| 284 | } |
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| 285 | } |
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| 286 | $this->textAndShorthandSyntaxHandler($state, $templateElement, $context); |
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| 287 | } |
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| 288 | |||
| 289 | if ($state->countNodeStack() !== 1) { |
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| 290 | throw new Exception( |
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| 291 | 'Not all tags were closed!', |
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| 292 | 1238169398 |
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| 293 | ); |
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| 294 | } |
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| 295 | return $state; |
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| 296 | } |
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| 297 | /** |
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| 298 | * Handles an opening or self-closing view helper tag. |
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| 299 | * |
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| 300 | * @param ParsingState $state Current parsing state |
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| 301 | * @param string $namespaceIdentifier Namespace identifier - being looked up in $this->namespaces |
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| 302 | * @param string $methodIdentifier Method identifier |
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| 303 | * @param string $arguments Arguments string, not yet parsed |
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| 304 | * @param boolean $selfclosing true, if the tag is a self-closing tag. |
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| 305 | * @param string $templateElement The template code containing the ViewHelper call |
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| 306 | * @return NodeInterface|null |
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| 307 | */ |
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| 308 | protected function openingViewHelperTagHandler(ParsingState $state, $namespaceIdentifier, $methodIdentifier, $arguments, $selfclosing, $templateElement) |
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| 309 | { |
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| 310 | $viewHelperNode = $this->initializeViewHelperAndAddItToStack( |
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| 311 | $state, |
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| 312 | $namespaceIdentifier, |
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| 313 | $methodIdentifier, |
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| 314 | $this->parseArguments($arguments) |
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| 315 | ); |
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| 316 | |||
| 317 | if ($viewHelperNode) { |
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| 318 | $viewHelperNode->setPointerTemplateCode($templateElement); |
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| 319 | if ($selfclosing === true) { |
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| 320 | $state->popNodeFromStack(); |
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| 321 | $this->callInterceptor($viewHelperNode, InterceptorInterface::INTERCEPT_CLOSING_VIEWHELPER, $state); |
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| 322 | // This needs to be called here because closingViewHelperTagHandler() is not triggered for self-closing tags |
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| 323 | $state->getNodeFromStack()->addChildNode($viewHelperNode); |
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| 324 | } |
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| 325 | } |
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| 326 | |||
| 327 | return $viewHelperNode; |
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| 328 | } |
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| 329 | |||
| 330 | /** |
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| 331 | * Initialize the given ViewHelper and adds it to the current node and to |
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| 332 | * the stack. |
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| 333 | * |
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| 334 | * @param ParsingState $state Current parsing state |
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| 335 | * @param string $namespaceIdentifier Namespace identifier - being looked up in $this->namespaces |
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| 336 | * @param string $methodIdentifier Method identifier |
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| 337 | * @param array $argumentsObjectTree Arguments object tree |
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| 338 | * @return null|NodeInterface An instance of ViewHelperNode if identity was valid - NULL if the namespace/identity was not registered |
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| 339 | * @throws Exception |
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| 340 | */ |
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| 341 | protected function initializeViewHelperAndAddItToStack(ParsingState $state, $namespaceIdentifier, $methodIdentifier, $argumentsObjectTree) |
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| 342 | { |
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| 343 | $viewHelperResolver = $this->renderingContext->getViewHelperResolver(); |
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| 344 | if (!$viewHelperResolver->isNamespaceValid($namespaceIdentifier)) { |
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| 345 | return null; |
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| 346 | } |
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| 347 | try { |
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| 348 | $currentViewHelperNode = new ViewHelperNode( |
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| 349 | $this->renderingContext, |
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| 350 | $namespaceIdentifier, |
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| 351 | $methodIdentifier, |
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| 352 | $argumentsObjectTree, |
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| 353 | $state |
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| 354 | ); |
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| 355 | |||
| 356 | $this->callInterceptor($currentViewHelperNode, InterceptorInterface::INTERCEPT_OPENING_VIEWHELPER, $state); |
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| 357 | $viewHelper = $currentViewHelperNode->getUninitializedViewHelper(); |
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| 358 | $viewHelper::postParseEvent($currentViewHelperNode, $argumentsObjectTree, $state->getVariableContainer()); |
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| 359 | $state->pushNodeToStack($currentViewHelperNode); |
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| 360 | return $currentViewHelperNode; |
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| 361 | } catch (\TYPO3Fluid\Fluid\Core\ViewHelper\Exception $error) { |
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| 362 | $this->textHandler( |
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| 363 | $state, |
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| 364 | $this->renderingContext->getErrorHandler()->handleViewHelperError($error) |
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| 365 | ); |
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| 366 | } catch (Exception $error) { |
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| 367 | $this->textHandler( |
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| 368 | $state, |
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| 369 | $this->renderingContext->getErrorHandler()->handleParserError($error) |
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| 370 | ); |
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| 371 | } |
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| 372 | return null; |
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| 373 | } |
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| 374 | |||
| 375 | /** |
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| 376 | * Handles a closing view helper tag |
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| 377 | * |
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| 378 | * @param ParsingState $state The current parsing state |
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| 379 | * @param string $namespaceIdentifier Namespace identifier for the closing tag. |
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| 380 | * @param string $methodIdentifier Method identifier. |
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| 381 | * @return boolean whether the viewHelper was found and added to the stack or not |
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| 382 | * @throws Exception |
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| 383 | */ |
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| 384 | protected function closingViewHelperTagHandler(ParsingState $state, $namespaceIdentifier, $methodIdentifier) |
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| 385 | { |
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| 386 | $viewHelperResolver = $this->renderingContext->getViewHelperResolver(); |
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| 387 | if (!$viewHelperResolver->isNamespaceValid($namespaceIdentifier)) { |
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| 388 | return false; |
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| 389 | } |
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| 390 | $lastStackElement = $state->popNodeFromStack(); |
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| 391 | if (!($lastStackElement instanceof ViewHelperNode)) { |
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| 392 | throw new Exception('You closed a templating tag which you never opened!', 1224485838); |
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| 393 | } |
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| 394 | $actualViewHelperClassName = $viewHelperResolver->resolveViewHelperClassName($namespaceIdentifier, $methodIdentifier); |
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| 395 | $expectedViewHelperClassName = $lastStackElement->getViewHelperClassName(); |
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| 396 | if ($actualViewHelperClassName !== $expectedViewHelperClassName) { |
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| 397 | throw new Exception( |
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| 398 | 'Templating tags not properly nested. Expected: ' . $expectedViewHelperClassName . '; Actual: ' . |
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| 399 | $actualViewHelperClassName, |
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| 400 | 1224485398 |
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| 401 | ); |
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| 402 | } |
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| 403 | $this->callInterceptor($lastStackElement, InterceptorInterface::INTERCEPT_CLOSING_VIEWHELPER, $state); |
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| 404 | $state->getNodeFromStack()->addChildNode($lastStackElement); |
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| 405 | |||
| 406 | return true; |
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| 407 | } |
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| 408 | |||
| 409 | /** |
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| 410 | * Handles the appearance of an object accessor (like {posts.author.email}). |
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| 411 | * Creates a new instance of \TYPO3Fluid\Fluid\ObjectAccessorNode. |
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| 412 | * |
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| 413 | * Handles ViewHelpers as well which are in the shorthand syntax. |
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| 414 | * |
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| 415 | * @param ParsingState $state The current parsing state |
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| 416 | * @param string $objectAccessorString String which identifies which objects to fetch |
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| 417 | * @param string $delimiter |
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| 418 | * @param string $viewHelperString |
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| 419 | * @param string $additionalViewHelpersString |
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| 420 | * @return void |
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| 421 | */ |
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| 422 | protected function objectAccessorHandler(ParsingState $state, $objectAccessorString, $delimiter, $viewHelperString, $additionalViewHelpersString) |
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| 423 | { |
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| 424 | $viewHelperString .= $additionalViewHelpersString; |
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| 425 | $numberOfViewHelpers = 0; |
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| 426 | |||
| 427 | // The following post-processing handles a case when there is only a ViewHelper, and no Object Accessor. |
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| 428 | // Resolves bug #5107. |
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| 429 | if (strlen($delimiter) === 0 && strlen($viewHelperString) > 0) { |
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| 430 | $viewHelperString = $objectAccessorString . $viewHelperString; |
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| 431 | $objectAccessorString = ''; |
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| 432 | } |
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| 433 | |||
| 434 | // ViewHelpers |
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| 435 | $matches = []; |
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| 436 | if (strlen($viewHelperString) > 0 && preg_match_all(Patterns::$SPLIT_PATTERN_SHORTHANDSYNTAX_VIEWHELPER, $viewHelperString, $matches, PREG_SET_ORDER) > 0) { |
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| 437 | // The last ViewHelper has to be added first for correct chaining. |
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| 438 | foreach (array_reverse($matches) as $singleMatch) { |
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| 439 | if (strlen($singleMatch['ViewHelperArguments']) > 0) { |
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| 440 | $arguments = $this->recursiveArrayHandler($singleMatch['ViewHelperArguments']); |
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| 441 | } else { |
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| 442 | $arguments = []; |
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| 443 | } |
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| 444 | $viewHelperNode = $this->initializeViewHelperAndAddItToStack($state, $singleMatch['NamespaceIdentifier'], $singleMatch['MethodIdentifier'], $arguments); |
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| 445 | if ($viewHelperNode) { |
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| 446 | $numberOfViewHelpers++; |
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| 447 | } |
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| 448 | } |
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| 449 | } |
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| 450 | |||
| 451 | // Object Accessor |
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| 452 | if (strlen($objectAccessorString) > 0) { |
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| 453 | $node = new ObjectAccessorNode($objectAccessorString); |
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| 454 | $this->callInterceptor($node, InterceptorInterface::INTERCEPT_OBJECTACCESSOR, $state); |
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| 455 | $state->getNodeFromStack()->addChildNode($node); |
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| 456 | } |
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| 457 | |||
| 458 | // Close ViewHelper Tags if needed. |
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| 459 | for ($i = 0; $i < $numberOfViewHelpers; $i++) { |
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| 460 | $node = $state->popNodeFromStack(); |
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| 461 | $this->callInterceptor($node, InterceptorInterface::INTERCEPT_CLOSING_VIEWHELPER, $state); |
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| 462 | $state->getNodeFromStack()->addChildNode($node); |
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| 463 | } |
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| 464 | } |
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| 465 | |||
| 466 | /** |
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| 467 | * Call all interceptors registered for a given interception point. |
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| 468 | * |
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| 469 | * @param NodeInterface $node The syntax tree node which can be modified by the interceptors. |
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| 470 | * @param integer $interceptionPoint the interception point. One of the \TYPO3Fluid\Fluid\Core\Parser\InterceptorInterface::INTERCEPT_* constants. |
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| 471 | * @param ParsingState $state the parsing state |
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| 472 | * @return void |
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| 473 | */ |
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| 474 | protected function callInterceptor(NodeInterface & $node, $interceptionPoint, ParsingState $state) |
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| 491 | |||
| 492 | /** |
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| 493 | * Parse arguments of a given tag, and build up the Arguments Object Tree |
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| 494 | * for each argument. |
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| 495 | * Returns an associative array, where the key is the name of the argument, |
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| 496 | * and the value is a single Argument Object Tree. |
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| 497 | * |
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| 498 | * @param string $argumentsString All arguments as string |
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| 499 | * @return array An associative array of objects, where the key is the argument name. |
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| 500 | */ |
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| 501 | protected function parseArguments($argumentsString) |
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| 517 | |||
| 518 | /** |
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| 519 | * Build up an argument object tree for the string in $argumentString. |
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| 520 | * This builds up the tree for a single argument value. |
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| 521 | * |
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| 522 | * This method also does some performance optimizations, so in case |
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| 523 | * no { or < is found, then we just return a TextNode. |
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| 524 | * |
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| 525 | * @param string $argumentString |
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| 526 | * @return SyntaxTree\NodeInterface the corresponding argument object tree. |
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| 527 | */ |
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| 528 | protected function buildArgumentObjectTree($argumentString) |
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| 540 | |||
| 541 | /** |
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| 542 | * Removes escapings from a given argument string and trims the outermost |
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| 543 | * quotes. |
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| 544 | * |
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| 545 | * This method is meant as a helper for regular expression results. |
||
| 546 | * |
||
| 547 | * @param string $quotedValue Value to unquote |
||
| 548 | * @return string Unquoted value |
||
| 549 | */ |
||
| 550 | public function unquoteString($quotedValue) |
||
| 560 | |||
| 561 | /** |
||
| 562 | * Handler for everything which is not a ViewHelperNode. |
||
| 563 | * |
||
| 564 | * This includes Text, array syntax, and object accessor syntax. |
||
| 565 | * |
||
| 566 | * @param ParsingState $state Current parsing state |
||
| 567 | * @param string $text Text to process |
||
| 568 | * @param integer $context one of the CONTEXT_* constants, defining whether we are inside or outside of ViewHelper arguments currently. |
||
| 569 | * @return void |
||
| 570 | */ |
||
| 571 | protected function textAndShorthandSyntaxHandler(ParsingState $state, $text, $context) |
||
| 572 | { |
||
| 573 | $sections = preg_split(Patterns::$SPLIT_PATTERN_SHORTHANDSYNTAX, $text, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY); |
||
| 574 | foreach ($sections as $section) { |
||
| 575 | $matchedVariables = []; |
||
| 633 | |||
| 634 | /** |
||
| 635 | * Handler for array syntax. This creates the array object recursively and |
||
| 636 | * adds it to the current node. |
||
| 637 | * |
||
| 638 | * @param ParsingState $state The current parsing state |
||
| 639 | * @param NodeInterface[] $arrayText The array as string. |
||
| 640 | * @return void |
||
| 641 | */ |
||
| 642 | protected function arrayHandler(ParsingState $state, $arrayText) |
||
| 647 | |||
| 648 | /** |
||
| 649 | * Recursive function which takes the string representation of an array and |
||
| 650 | * builds an object tree from it. |
||
| 651 | * |
||
| 652 | * Deals with the following value types: |
||
| 653 | * - Numbers (Integers and Floats) |
||
| 654 | * - Strings |
||
| 655 | * - Variables |
||
| 656 | * - sub-arrays |
||
| 657 | * |
||
| 658 | * @param string $arrayText Array text |
||
| 659 | * @return NodeInterface[] the array node built up |
||
| 660 | * @throws Exception |
||
| 661 | */ |
||
| 662 | protected function recursiveArrayHandler($arrayText) |
||
| 683 | |||
| 684 | /** |
||
| 685 | * Text node handler |
||
| 686 | * |
||
| 687 | * @param ParsingState $state |
||
| 688 | * @param string $text |
||
| 689 | * @return void |
||
| 690 | */ |
||
| 691 | protected function textHandler(ParsingState $state, $text) |
||
| 697 | |||
| 698 | /** |
||
| 699 | * @return ParsingState |
||
| 700 | */ |
||
| 701 | protected function getParsingState() |
||
| 711 | } |
||
| 712 |
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.