ViewHelperNode::evaluate() - Code Metrics - Inspection of "[WIP] Sequencer to replace regular expressions" - TYPO3/Fluid - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#457)

by Claus

created 2019-06-20 09:51 UTC

ViewHelperNode::evaluate() A

↳ Parent: ViewHelperNode

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
nc	1
nop	1
dl	0
loc	4
rs	10
c	0
b	0
f	0

<?php
namespace TYPO3Fluid\Fluid\Core\Parser\SyntaxTree;

/*
 * This file belongs to the package "TYPO3 Fluid".
 * See LICENSE.txt that was shipped with this package.
 */

use TYPO3Fluid\Fluid\Core\Parser\Exception;
use TYPO3Fluid\Fluid\Core\Parser\ParsingState;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\ArgumentDefinition;
use TYPO3Fluid\Fluid\Core\ViewHelper\ViewHelperInterface;

/**
 * Node which will call a ViewHelper associated with this node.
 */
class ViewHelperNode extends AbstractNode
{

    /**
     * @var string
     */
    protected $viewHelperClassName;

    /**
     * @var NodeInterface[]
     */
    protected $arguments = [];

    /**
     * @var ViewHelperInterface
     */
    protected $uninitializedViewHelper = null;

    /**
     * @var ArgumentDefinition[]
     */
    protected $argumentDefinitions = [];

    /**
     * @var string
     */
    protected $pointerTemplateCode = null;

    /**
     * @var string
     */
    protected $namespace = '';

    /**
     * @var string
     */
    protected $identifier = '';

    /**
     * @var RenderingContextInterface
     */
    protected $renderingContext;

    /**
     * Constructor.
     *
     * @param RenderingContextInterface $renderingContext a RenderingContext, provided by invoker
     * @param string $namespace the namespace identifier of the ViewHelper.
     * @param string $identifier the name of the ViewHelper to render, inside the namespace provided.
     * @param NodeInterface[] $arguments Arguments of view helper - each value is a RootNode.
     * @param ParsingState $state
     */
    public function __construct(RenderingContextInterface $renderingContext, $namespace, $identifier, array $arguments, ParsingState $state)

    {
        $resolver = $renderingContext->getViewHelperResolver();
        $this->renderingContext = $renderingContext;
        $this->namespace = $namespace;
        $this->identifier = $identifier;
        $this->arguments = $arguments;
        $this->viewHelperClassName = $resolver->resolveViewHelperClassName($namespace, $identifier);
        $this->uninitializedViewHelper = $resolver->createViewHelperInstanceFromClassName($this->viewHelperClassName);
        $this->uninitializedViewHelper->setViewHelperNode($this);
        // Note: RenderingContext required here though replaced later. See https://github.com/TYPO3Fluid/Fluid/pull/93
        $this->uninitializedViewHelper->setRenderingContext($renderingContext);
        $this->argumentDefinitions = $resolver->getArgumentDefinitionsForViewHelper($this->uninitializedViewHelper);
        $this->rewriteBooleanNodesInArgumentsObjectTree($this->argumentDefinitions, $this->arguments);
        $this->validateArguments($this->argumentDefinitions, $this->arguments);
    }

    /**
     * Returns the attached (but still uninitialized) ViewHelper for this ViewHelperNode.
     * We need this method because sometimes Interceptors need to ask some information from the ViewHelper.
     *
     * @return ViewHelperInterface
     */
    public function getUninitializedViewHelper()
    {
        return $this->uninitializedViewHelper;
    }

    /**
     * Get class name of view helper
     *
     * @return string Class Name of associated view helper
     */
    public function getViewHelperClassName()
    {
        return $this->viewHelperClassName;
    }

    /**
     * INTERNAL - only needed for compiling templates
     *
     * @return NodeInterface[]
     */
    public function getArguments()
    {
        return $this->arguments;
    }

    /**
     * INTERNAL - only needed for compiling templates
     *
     * @return NodeInterface[]
     */
    public function getParsedArguments()
    {
        return $this->arguments;
    }

    /**
     * @param NodeInterface $childNode
     * @return self
     */
    public function addChildNode(NodeInterface $childNode)
    {
        parent::addChildNode($childNode);
        $this->uninitializedViewHelper->setChildNodes($this->childNodes);
        return $this;
    }

    /**
     * @param string $pointerTemplateCode
     * @return void
     */
    public function setPointerTemplateCode($pointerTemplateCode)
    {
        $this->pointerTemplateCode = $pointerTemplateCode;
    }

    /**
     * Call the view helper associated with this object.
     *
     * First, it evaluates the arguments of the view helper.
     *
     * If the view helper implements \TYPO3Fluid\Fluid\Core\ViewHelper\ChildNodeAccessInterface,
     * it calls setChildNodes(array childNodes) on the view helper.
     *
     * Afterwards, checks that the view helper did not leave a variable lying around.
     *
     * @param RenderingContextInterface $renderingContext
     * @return string evaluated node after the view helper has been called.
     */
    public function evaluate(RenderingContextInterface $renderingContext)
    {
        return $renderingContext->getViewHelperInvoker()->invoke($this->uninitializedViewHelper, $this->arguments, $renderingContext);
    }

    /**
     * Wraps the argument tree, if a node is boolean, into a Boolean syntax tree node
     *
     * @param ArgumentDefinition[] $argumentDefinitions the argument definitions, key is the argument name, value is the ArgumentDefinition object
     * @param NodeInterface[] $argumentsObjectTree the arguments syntax tree, key is the argument name, value is an AbstractNode
     * @return void
     */
    protected function rewriteBooleanNodesInArgumentsObjectTree($argumentDefinitions, &$argumentsObjectTree)
    {
        /** @var $argumentDefinition ArgumentDefinition */
        foreach ($argumentDefinitions as $argumentName => $argumentDefinition) {
            if (($argumentDefinition->getType() === 'boolean' || $argumentDefinition->getType() === 'bool')
                 && isset($argumentsObjectTree[$argumentName])) {
                if (!is_numeric($argumentsObjectTree[$argumentName])
                    && !is_bool($argumentsObjectTree[$argumentName])
                    && $argumentsObjectTree[$argumentName] !== null) {
                    $argumentsObjectTree[$argumentName] = new BooleanNode($argumentsObjectTree[$argumentName]);
                } else {
                    $argumentsObjectTree[$argumentName] = (bool)$argumentsObjectTree[$argumentName];
                }
            }
        }
    }

    /**
     * @param ArgumentDefinition[] $argumentDefinitions
     * @param NodeInterface[] $argumentsObjectTree
     * @throws Exception
     */
    protected function validateArguments(array $argumentDefinitions, array $argumentsObjectTree)

    {
        $additionalArguments = [];
        foreach ($argumentsObjectTree as $argumentName => $value) {
            if (!array_key_exists($argumentName, $argumentDefinitions)) {
                $additionalArguments[$argumentName] = $value;
            }
        }
        $this->abortIfRequiredArgumentsAreMissing($argumentDefinitions, $argumentsObjectTree);
        $this->uninitializedViewHelper->validateAdditionalArguments($additionalArguments);
    }

    /**
     * Throw an exception if required arguments are missing
     *
     * @param ArgumentDefinition[] $expectedArguments Array of all expected arguments
     * @param NodeInterface[] $actualArguments Actual arguments
     * @throws Exception
     */
    protected function abortIfRequiredArgumentsAreMissing($expectedArguments, $actualArguments)
    {
        $actualArgumentNames = array_keys($actualArguments);
        foreach ($expectedArguments as $expectedArgument) {
            if ($expectedArgument->isRequired() && !in_array($expectedArgument->getName(), $actualArgumentNames)) {
                throw new Exception('Required argument "' . $expectedArgument->getName() . '" was not supplied.', 1237823699);
            }
        }
    }
}


1		<?php
2		namespace TYPO3Fluid\Fluid\Core\Parser\SyntaxTree;
3
4		/*
5		* This file belongs to the package "TYPO3 Fluid".
6		* See LICENSE.txt that was shipped with this package.
7		*/
8
9		use TYPO3Fluid\Fluid\Core\Parser\Exception;
10		use TYPO3Fluid\Fluid\Core\Parser\ParsingState;
11		use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
12		use TYPO3Fluid\Fluid\Core\ViewHelper\ArgumentDefinition;
13		use TYPO3Fluid\Fluid\Core\ViewHelper\ViewHelperInterface;
14
15		/**
16		* Node which will call a ViewHelper associated with this node.
17		*/
18		class ViewHelperNode extends AbstractNode
19		{
20
21		/**
22		* @var string
23		*/
24		protected $viewHelperClassName;
25
26		/**
27		* @var NodeInterface[]
28		*/
29		protected $arguments = [];
30
31		/**
32		* @var ViewHelperInterface
33		*/
34		protected $uninitializedViewHelper = null;
35
36		/**
37		* @var ArgumentDefinition[]
38		*/
39		protected $argumentDefinitions = [];
40
41		/**
42		* @var string
43		*/
44		protected $pointerTemplateCode = null;
45
46		/**
47		* @var string
48		*/
49		protected $namespace = '';
50
51		/**
52		* @var string
53		*/
54		protected $identifier = '';
55
56		/**
57		* @var RenderingContextInterface
58		*/
59		protected $renderingContext;
60
61		/**
62		* Constructor.
63		*
64		* @param RenderingContextInterface $renderingContext a RenderingContext, provided by invoker
65		* @param string $namespace the namespace identifier of the ViewHelper.
66		* @param string $identifier the name of the ViewHelper to render, inside the namespace provided.
67		* @param NodeInterface[] $arguments Arguments of view helper - each value is a RootNode.
68		* @param ParsingState $state
69		*/
70		public function __construct(RenderingContextInterface $renderingContext, $namespace, $identifier, array $arguments, ParsingState $state)
		0 ignored issues – show Unused Code introduced 2016-10-20 10:20 UTC by Report Bug Copy Issue Report The parameter `$state` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
71		{
72		$resolver = $renderingContext->getViewHelperResolver();
73		$this->renderingContext = $renderingContext;
74		$this->namespace = $namespace;
75		$this->identifier = $identifier;
76		$this->arguments = $arguments;
77		$this->viewHelperClassName = $resolver->resolveViewHelperClassName($namespace, $identifier);
78		$this->uninitializedViewHelper = $resolver->createViewHelperInstanceFromClassName($this->viewHelperClassName);
79		$this->uninitializedViewHelper->setViewHelperNode($this);
80		// Note: RenderingContext required here though replaced later. See https://github.com/TYPO3Fluid/Fluid/pull/93
81		$this->uninitializedViewHelper->setRenderingContext($renderingContext);
82		$this->argumentDefinitions = $resolver->getArgumentDefinitionsForViewHelper($this->uninitializedViewHelper);
83		$this->rewriteBooleanNodesInArgumentsObjectTree($this->argumentDefinitions, $this->arguments);
84		$this->validateArguments($this->argumentDefinitions, $this->arguments);
85		}
86
87		/**
88		* Returns the attached (but still uninitialized) ViewHelper for this ViewHelperNode.
89		* We need this method because sometimes Interceptors need to ask some information from the ViewHelper.
90		*
91		* @return ViewHelperInterface
92		*/
93		public function getUninitializedViewHelper()
94		{
95		return $this->uninitializedViewHelper;
96		}
97
98		/**
99		* Get class name of view helper
100		*
101		* @return string Class Name of associated view helper
102		*/
103		public function getViewHelperClassName()
104		{
105		return $this->viewHelperClassName;
106		}
107
108		/**
109		* INTERNAL - only needed for compiling templates
110		*
111		* @return NodeInterface[]
112		*/
113		public function getArguments()
114		{
115		return $this->arguments;
116		}
117
118		/**
119		* INTERNAL - only needed for compiling templates
120		*
121		* @return NodeInterface[]
122		*/
123		public function getParsedArguments()
124		{
125		return $this->arguments;
126		}
127
128		/**
129		* @param NodeInterface $childNode
130		* @return self
131		*/
132		public function addChildNode(NodeInterface $childNode)
133		{
134		parent::addChildNode($childNode);
135		$this->uninitializedViewHelper->setChildNodes($this->childNodes);
136		return $this;
137		}
138
139		/**
140		* @param string $pointerTemplateCode
141		* @return void
142		*/
143		public function setPointerTemplateCode($pointerTemplateCode)
144		{
145		$this->pointerTemplateCode = $pointerTemplateCode;
146		}
147
148		/**
149		* Call the view helper associated with this object.
150		*
151		* First, it evaluates the arguments of the view helper.
152		*
153		* If the view helper implements \TYPO3Fluid\Fluid\Core\ViewHelper\ChildNodeAccessInterface,
154		* it calls setChildNodes(array childNodes) on the view helper.
155		*
156		* Afterwards, checks that the view helper did not leave a variable lying around.
157		*
158		* @param RenderingContextInterface $renderingContext
159		* @return string evaluated node after the view helper has been called.
160		*/
161		public function evaluate(RenderingContextInterface $renderingContext)
162		{
163		return $renderingContext->getViewHelperInvoker()->invoke($this->uninitializedViewHelper, $this->arguments, $renderingContext);
164		}
165
166		/**
167		* Wraps the argument tree, if a node is boolean, into a Boolean syntax tree node
168		*
169		* @param ArgumentDefinition[] $argumentDefinitions the argument definitions, key is the argument name, value is the ArgumentDefinition object
170		* @param NodeInterface[] $argumentsObjectTree the arguments syntax tree, key is the argument name, value is an AbstractNode
171		* @return void
172		*/
173		protected function rewriteBooleanNodesInArgumentsObjectTree($argumentDefinitions, &$argumentsObjectTree)
174		{
175		/** @var $argumentDefinition ArgumentDefinition */
176		foreach ($argumentDefinitions as $argumentName => $argumentDefinition) {
177		if (($argumentDefinition->getType() === 'boolean' \|\| $argumentDefinition->getType() === 'bool')
178		&& isset($argumentsObjectTree[$argumentName])) {
179		if (!is_numeric($argumentsObjectTree[$argumentName])
180		&& !is_bool($argumentsObjectTree[$argumentName])
181		&& $argumentsObjectTree[$argumentName] !== null) {
182		$argumentsObjectTree[$argumentName] = new BooleanNode($argumentsObjectTree[$argumentName]);
183		} else {
184		$argumentsObjectTree[$argumentName] = (bool)$argumentsObjectTree[$argumentName];
185		}
186		}
187		}
188		}
189
190		/**
191		* @param ArgumentDefinition[] $argumentDefinitions
192		* @param NodeInterface[] $argumentsObjectTree
193		* @throws Exception
194		*/
195	View Code Duplication	protected function validateArguments(array $argumentDefinitions, array $argumentsObjectTree)
		0 ignored issues – show Duplication introduced 2019-05-31 19:29 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
196		{
197		$additionalArguments = [];
198		foreach ($argumentsObjectTree as $argumentName => $value) {
199		if (!array_key_exists($argumentName, $argumentDefinitions)) {
200		$additionalArguments[$argumentName] = $value;
201		}
202		}
203		$this->abortIfRequiredArgumentsAreMissing($argumentDefinitions, $argumentsObjectTree);
204		$this->uninitializedViewHelper->validateAdditionalArguments($additionalArguments);
205		}
206
207		/**
208		* Throw an exception if required arguments are missing
209		*
210		* @param ArgumentDefinition[] $expectedArguments Array of all expected arguments
211		* @param NodeInterface[] $actualArguments Actual arguments
212		* @throws Exception
213		*/
214		protected function abortIfRequiredArgumentsAreMissing($expectedArguments, $actualArguments)
215		{
216		$actualArgumentNames = array_keys($actualArguments);
217		foreach ($expectedArguments as $expectedArgument) {
218		if ($expectedArgument->isRequired() && !in_array($expectedArgument->getName(), $actualArgumentNames)) {
219		throw new Exception('Required argument "' . $expectedArgument->getName() . '" was not supplied.', 1237823699);
220		}
221		}
222		}
223		}
224

TYPO3 / Fluid

Pull Request — master (#457)

ViewHelperNode::evaluate() A

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