ToCSSVisitor::visitExtend() - Code Metrics - mishal/iless - Measure and Improve Code Quality continuously with Scrutinizer

ToCSSVisitor::visitExtend() A
last analyzed 2017-03-09 13:30 UTC

↳ Parent: ToCSSVisitor

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	3
rs	10
c	0
b	0
f	0
cc	1
eloc	1
nc	1
nop	2

<?php

/*
 * This file is part of the ILess
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace ILess\Visitor;

use ILess\Context;
use ILess\Exception\CompilerException;
use ILess\Node;
use ILess\Node\AnonymousNode;
use ILess\Node\CombinatorNode;
use ILess\Node\CommentNode;
use ILess\Node\DirectiveNode;
use ILess\Node\ExpressionNode;
use ILess\Node\ExtendNode;
use ILess\Node\ImportNode;
use ILess\Node\MediaNode;
use ILess\Node\MixinDefinitionNode;
use ILess\Node\ReferencedInterface;
use ILess\Node\RuleNode;
use ILess\Node\RulesetNode;
use ILess\Node\SelectorNode;
use ILess\Node\ValueNode;

/**
 * To CSS visitor.
 */
class ToCSSVisitor extends Visitor
{
    /**
     * The context.
     *
     * @var Context
     */
    protected $context;

    /**
     * Is replacing flag.
     *
     * @var bool
     */
    protected $isReplacing = true;

    /**
     * Charset flag.
     *
     * @var bool
     */
    public $charset = false;

    /**
     * Constructor.
     *
     * @param Context $context
     */
    public function __construct(Context $context)
    {
        parent::__construct();
        $this->context = $context;
    }

    /**
     * Returns the context.
     *
     * @return Context
     */
    public function getContext()
    {
        return $this->context;
    }

    /**
     * Visits a rule node.
     *
     * @param RuleNode $node The node
     * @param VisitorArguments $arguments The arguments
     *
     * @return array|RuleNode
     */
    public function visitRule(RuleNode $node, VisitorArguments $arguments)
    {
        if ($node->variable) {
            return;
        }

        return $node;
    }

    /**
     * Visits a mixin definition.
     *
     * @param MixinDefinitionNode $node The node
     * @param VisitorArguments $arguments The arguments
     *
     * @return array
     */
    public function visitMixinDefinition(MixinDefinitionNode $node, VisitorArguments $arguments)
    {
        // mixin definitions do not get compiled - this means they keep state
        // so we have to clear that state here so it isn't used if toCSS is called twice
        $node->frames = [];
    }

    /**
     * Visits a extend node.
     *
     * @param ExtendNode $node The node
     * @param VisitorArguments $arguments The arguments
     */
    public function visitExtend(ExtendNode $node, VisitorArguments $arguments)
    {
    }

    /**
     * Visits a comment node.
     *
     * @param CommentNode $node The node
     * @param VisitorArguments $arguments The arguments
     *
     * @return CommentNode|null
     */
    public function visitComment(CommentNode $node, VisitorArguments $arguments)
    {
        if ($node->isSilent($this->getContext())) {
            return;
        }

        return $node;
    }

    /**
     * Visits a media node.
     *
     * @param MediaNode $node The node
     * @param VisitorArguments $arguments The arguments
     *
     * @return MediaNode|null
     */
    public function visitMedia(MediaNode $node, VisitorArguments $arguments)
    {
        $node->accept($this);
        $arguments->visitDeeper = false;

        if (!count($node->rules)) {
            return;
        }

        return $node;
    }

    /**
     * Visits a import node.
     *
     * @param ImportNode $node The node
     * @param VisitorArguments $arguments The arguments
     *
     * @return ImportNode|null
     */
    public function visitImport(ImportNode $node, VisitorArguments $arguments)
    {
        if ($node->path->currentFileInfo->reference !== false && $node->css) {
            return;
        }

        return $node;
    }

    /**
     * Visits a directive node.
     *
     * @param DirectiveNode $node The node
     * @param VisitorArguments $arguments The arguments
     *
     * @return DirectiveNode|null
     */
    public function visitDirective(DirectiveNode $node, VisitorArguments $arguments)
    {
        if ($node->name === '@charset') {
            if (!$node->getIsReferenced()) {
                return;
            }
            // Only output the debug info together with subsequent @charset definitions
            // a comment (or @media statement) before the actual @charset directive would
            // be considered illegal css as it has to be on the first line
            if ($this->charset) {
                if ($node->debugInfo) {
                    $comment = new CommentNode(sprintf("/* %s */\n",
                        str_replace("\n", '', $node->toCSS($this->getContext()))));
                    $comment->debugInfo = $node->debugInfo;

                    return $this->visit($comment);
                }

                return;
            }
            $this->charset = true;
        }

        if (count($node->rules)) {
            // it is still true that it is only one ruleset in array
            // this is last such moment
            $this->mergeRules($node->rules[0]->rules);

            $node->accept($this);
            $arguments->visitDeeper = false;
            // the directive was directly referenced and therefore needs to be shown in the output
            if ($node->getIsReferenced()) {
                return $node;
            }

            if (!count($node->rules)) {
                return;
            }

            // the directive was not directly referenced - we need to check whether some of its children
            // was referenced
            if ($this->hasVisibleChild($node)) {
                // marking as referenced in case the directive is stored inside another directive
                $node->markReferenced();

                return $node;
            }

            // The directive was not directly referenced and does not contain anything that
            // was referenced. Therefore it must not be shown in output.
            return;
        } else {
            if (!$node->getIsReferenced()) {
                return;
            }
        }

        return $node;
    }

    /**
     * @param DirectiveNode $node
     *
     * @return bool
     */
    private function hasVisibleChild(DirectiveNode $node)
    {
        $bodyRules = &$node->rules;

        // if there is only one nested ruleset and that one has no path, then it is
        // just fake ruleset that got not replaced and we need to look inside it to
        // get real children
        if (count($bodyRules) === 1 && (count($bodyRules[0]->paths) === 0)) {
            $bodyRules = $bodyRules[0]->rules;
        }

        for ($r = 0; $r < count($bodyRules); ++$r) {
for ($i=0; $i<count($array); $i++) { // calls count() on each iteration
}

// Better
for ($i=0, $c=count($array); $i<$c; $i++) { // calls count() just once
}
            $rule = $bodyRules[$r];
            if ($rule instanceof ReferencedInterface && $rule->getIsReferenced()) {
                // the directive contains something that was referenced (likely by extend)
                // therefore it needs to be shown in output too
                return true;
            }
        }

        return false;
    }

    /**
     * Visits a ruleset node.
     *
     * @param RulesetNode $node The node
     * @param VisitorArguments $arguments The arguments
     *
     * @return array|RulesetNode
     */
    public function visitRuleset(RulesetNode $node, VisitorArguments $arguments)
    {
        if ($node->firstRoot) {
            $this->checkPropertiesInRoot($node->rules);
        }

        $rulesets = [];

        if (!$node->root) {
            $paths = [];
            foreach ($node->paths as $p) {
                if ($p[0]->elements[0]->combinator->value === ' ') {
                    $p[0]->elements[0]->combinator = new CombinatorNode('');
                }
                foreach ($p as $pi) {
                    /* @var $pi SelectorNode */
                    if ($pi->getIsReferenced() && $pi->getIsOutput()) {
                        $paths[] = $p;
                        break;
                    }
                }
            }

            $node->paths = $paths;

            // Compile rules and rulesets
            for ($i = 0, $count = count($node->rules); $i < $count;) {
                $rule = $node->rules[$i];
                //if ($rule instanceof ILess\ILess\Node\RuleNode || $rule instanceof ILess\ILess\Node\RulesetNode) {
                //if ($rule instanceof ILess\ILess\Node\RulesetNode) {
                if (Node::propertyExists($rule, 'rules')) {
                    // visit because we are moving them out from being a child
                    $rulesets[] = $this->visit($rule);
                    array_splice($node->rules, $i, 1);
                    --$count;
                    continue;
                }
                ++$i;
            }

            // accept the visitor to remove rules and refactor itself
            // then we can decide now whether we want it or not
            if ($count > 0) {
                $node->accept($this);
            } else {
                $node->rules = [];
            }

            $arguments->visitDeeper = false;

            // accept the visitor to remove rules and refactor itself
            // then we can decide now whether we want it or not
            if ($node->rules) {
                // passed by reference
                $this->mergeRules($node->rules);
            }

            if ($node->rules) {
                // passed by reference
                $this->removeDuplicateRules($node->rules);
            }

            // now decide whether we keep the ruleset
            if ($node->rules && $node->paths) {
                array_splice($rulesets, 0, 0, [$node]);
            }
        } else {
            $node->accept($this);
            $arguments->visitDeeper = false;
            if ($node->firstRoot || count($node->rules) > 0) {
                array_splice($rulesets, 0, 0, [$node]);
            }
        }

        if (count($rulesets) === 1) {
            return $rulesets[0];
        }

        return $rulesets;
    }

    /**
     * Visits anonymous node.
     *
     * @param AnonymousNode $node
     * @param VisitorArguments $arguments
     */
    public function visitAnonymous(AnonymousNode $node, VisitorArguments $arguments)
    {
        if (!$node->getIsReferenced()) {
            return;
        }

        $node->accept($this);

        return $node;
    }

    /**
     * Checks properties for presence in selector blocks.
     *
     * @param array $rules
     *
     * @throws CompilerException
     */
    private function checkPropertiesInRoot($rules)
    {
        for ($i = 0, $count = count($rules); $i < $count; ++$i) {
            $ruleNode = $rules[$i];
            if ($ruleNode instanceof RuleNode && !$ruleNode->variable) {
                throw new CompilerException(
                    'Properties must be inside selector blocks, they cannot be in the root.',
                    $ruleNode->index,
                    $ruleNode->currentFileInfo
                );
            }
        }
    }

    /**
     * Merges rules.
     *
     * @param array $rules
     */
    private function mergeRules(array &$rules)
    {
        $groups = [];
        for ($i = 0, $rulesCount = count($rules); $i < $rulesCount; ++$i) {
            $rule = $rules[$i];
            if (($rule instanceof RuleNode) && $rule->merge) {
                $key = $rule->name;
                if ($rule->important) {
                    $key .= ',!';
                }
                if (!isset($groups[$key])) {
                    $groups[$key] = [];
                } else {
                    array_splice($rules, $i--, 1);
                    --$rulesCount;
                }
                $groups[$key][] = $rule;
            }
        }

        foreach ($groups as $parts) {
            if (count($parts) > 1) {
                $rule = $parts[0];
                $spacedGroups = [];
                $lastSpacedGroup = [];
                foreach ($parts as $p) {
                    if ($p->merge === '+') {
                        if (count($lastSpacedGroup) > 0) {
                            $spacedGroups[] = $this->toExpression($lastSpacedGroup);
                        }
                        $lastSpacedGroup = [];
                    }
                    $lastSpacedGroup[] = $p;
                }
                $spacedGroups[] = $this->toExpression($lastSpacedGroup);
                $rule->value = $this->toValue($spacedGroups);
            }
        }
    }

    /**
     * Removes duplicates.
     *
     * @param array $rules
     */
    private function removeDuplicateRules(array &$rules)
    {
        // remove duplicates
        $ruleCache = [];
        for ($i = count($rules) - 1; $i >= 0; --$i) {
            $rule = $rules[$i];
            if ($rule instanceof RuleNode) {
                $key = serialize($rule->name);
                if (!isset($ruleCache[$key])) {
                    $ruleCache[$key] = $rule;
                } else {
                    $ruleList = &$ruleCache[$key];
                    if ($ruleList instanceof RuleNode) {
                        $ruleList = $ruleCache[$key] = [$ruleCache[$key]->toCSS($this->getContext())];
                    }
                    $ruleCSS = $rule->toCSS($this->getContext());
                    if (array_search($ruleCSS, $ruleList) !== false) {
                        array_splice($rules, $i, 1);
                    } else {
                        $ruleList[] = $ruleCSS;
                    }
                }
            }
        }
    }

    /**
     * @param $values
     *
     * @return ExpressionNode
     */
    private function toExpression($values)
    {
        $mapped = [];
        foreach ($values as $p) {
            $mapped[] = $p->value;
        }

        return new ExpressionNode($mapped);
    }

    /**
     * @param $values
     *
     * @return ValueNode
     */
    private function toValue($values)
    {
        return new ValueNode($values);
    }
}


1			<?php
2
3			/*
4			* This file is part of the ILess
5			*
6			* For the full copyright and license information, please view the LICENSE
7			* file that was distributed with this source code.
8			*/
9
10			namespace ILess\Visitor;
11
12			use ILess\Context;
13			use ILess\Exception\CompilerException;
14			use ILess\Node;
15			use ILess\Node\AnonymousNode;
16			use ILess\Node\CombinatorNode;
17			use ILess\Node\CommentNode;
18			use ILess\Node\DirectiveNode;
19			use ILess\Node\ExpressionNode;
20			use ILess\Node\ExtendNode;
21			use ILess\Node\ImportNode;
22			use ILess\Node\MediaNode;
23			use ILess\Node\MixinDefinitionNode;
24			use ILess\Node\ReferencedInterface;
25			use ILess\Node\RuleNode;
26			use ILess\Node\RulesetNode;
27			use ILess\Node\SelectorNode;
28			use ILess\Node\ValueNode;
29
30			/**
31			* To CSS visitor.
32			*/
33			class ToCSSVisitor extends Visitor
34			{
35			/**
36			* The context.
37			*
38			* @var Context
39			*/
40			protected $context;
41
42			/**
43			* Is replacing flag.
44			*
45			* @var bool
46			*/
47			protected $isReplacing = true;
48
49			/**
50			* Charset flag.
51			*
52			* @var bool
53			*/
54			public $charset = false;
55
56			/**
57			* Constructor.
58			*
59			* @param Context $context
60			*/
61			public function __construct(Context $context)
62			{
63			parent::__construct();
64			$this->context = $context;
65			}
66
67			/**
68			* Returns the context.
69			*
70			* @return Context
71			*/
72			public function getContext()
73			{
74			return $this->context;
75			}
76
77			/**
78			* Visits a rule node.
79			*
80			* @param RuleNode $node The node
81			* @param VisitorArguments $arguments The arguments
82			*
83			* @return array\|RuleNode
84			*/
85			public function visitRule(RuleNode $node, VisitorArguments $arguments)
86			{
87			if ($node->variable) {
88			return;
89			}
90
91			return $node;
92			}
93
94			/**
95			* Visits a mixin definition.
96			*
97			* @param MixinDefinitionNode $node The node
98			* @param VisitorArguments $arguments The arguments
99			*
100			* @return array
101			*/
102			public function visitMixinDefinition(MixinDefinitionNode $node, VisitorArguments $arguments)
103			{
104			// mixin definitions do not get compiled - this means they keep state
105			// so we have to clear that state here so it isn't used if toCSS is called twice
106			$node->frames = [];
107			}
108
109			/**
110			* Visits a extend node.
111			*
112			* @param ExtendNode $node The node
113			* @param VisitorArguments $arguments The arguments
114			*/
115			public function visitExtend(ExtendNode $node, VisitorArguments $arguments)
116			{
117			}
118
119			/**
120			* Visits a comment node.
121			*
122			* @param CommentNode $node The node
123			* @param VisitorArguments $arguments The arguments
124			*
125			* @return CommentNode\|null
126			*/
127			public function visitComment(CommentNode $node, VisitorArguments $arguments)
128			{
129			if ($node->isSilent($this->getContext())) {
130			return;
131			}
132
133			return $node;
134			}
135
136			/**
137			* Visits a media node.
138			*
139			* @param MediaNode $node The node
140			* @param VisitorArguments $arguments The arguments
141			*
142			* @return MediaNode\|null
143			*/
144			public function visitMedia(MediaNode $node, VisitorArguments $arguments)
145			{
146			$node->accept($this);
147			$arguments->visitDeeper = false;
148
149			if (!count($node->rules)) {
150			return;
151			}
152
153			return $node;
154			}
155
156			/**
157			* Visits a import node.
158			*
159			* @param ImportNode $node The node
160			* @param VisitorArguments $arguments The arguments
161			*
162			* @return ImportNode\|null
163			*/
164			public function visitImport(ImportNode $node, VisitorArguments $arguments)
165			{
166			if ($node->path->currentFileInfo->reference !== false && $node->css) {
167			return;
168			}
169
170			return $node;
171			}
172
173			/**
174			* Visits a directive node.
175			*
176			* @param DirectiveNode $node The node
177			* @param VisitorArguments $arguments The arguments
178			*
179			* @return DirectiveNode\|null
180			*/
181			public function visitDirective(DirectiveNode $node, VisitorArguments $arguments)
182			{
183			if ($node->name === '@charset') {
184			if (!$node->getIsReferenced()) {
185			return;
186			}
187			// Only output the debug info together with subsequent @charset definitions
188			// a comment (or @media statement) before the actual @charset directive would
189			// be considered illegal css as it has to be on the first line
190			if ($this->charset) {
191			if ($node->debugInfo) {
192			$comment = new CommentNode(sprintf("/* %s */\n",
193			str_replace("\n", '', $node->toCSS($this->getContext()))));
194			$comment->debugInfo = $node->debugInfo;
195
196			return $this->visit($comment);
197			}
198
199			return;
200			}
201			$this->charset = true;
202			}
203
204			if (count($node->rules)) {
205			// it is still true that it is only one ruleset in array
206			// this is last such moment
207			$this->mergeRules($node->rules[0]->rules);
208
209			$node->accept($this);
210			$arguments->visitDeeper = false;
211			// the directive was directly referenced and therefore needs to be shown in the output
212			if ($node->getIsReferenced()) {
213			return $node;
214			}
215
216			if (!count($node->rules)) {
217			return;
218			}
219
220			// the directive was not directly referenced - we need to check whether some of its children
221			// was referenced
222			if ($this->hasVisibleChild($node)) {
223			// marking as referenced in case the directive is stored inside another directive
224			$node->markReferenced();
225
226			return $node;
227			}
228
229			// The directive was not directly referenced and does not contain anything that
230			// was referenced. Therefore it must not be shown in output.
231			return;
232			} else {
233			if (!$node->getIsReferenced()) {
234			return;
235			}
236			}
237
238			return $node;
239			}
240
241			/**
242			* @param DirectiveNode $node
243			*
244			* @return bool
245			*/
246			private function hasVisibleChild(DirectiveNode $node)
247			{
248			$bodyRules = &$node->rules;
249
250			// if there is only one nested ruleset and that one has no path, then it is
251			// just fake ruleset that got not replaced and we need to look inside it to
252			// get real children
253			if (count($bodyRules) === 1 && (count($bodyRules[0]->paths) === 0)) {
254			$bodyRules = $bodyRules[0]->rules;
255			}
256
257			for ($r = 0; $r < count($bodyRules); ++$r) {
			0 ignored issues – show Performance Best Practice introduced 2016-03-10 07:34 UTC by Report Bug Copy Issue Report It seems like you are calling the size function `count()` as part of the test condition. You might want to compute the size beforehand, and not on each iteration. If the size of the collection does not change during the iteration, it is generally a good practice to compute it beforehand, and not on each iteration: for ($i=0; $i<count($array); $i++) { // calls count() on each iteration } // Better for ($i=0, $c=count($array); $i<$c; $i++) { // calls count() just once } Loading history...
258			$rule = $bodyRules[$r];
259			if ($rule instanceof ReferencedInterface && $rule->getIsReferenced()) {
260			// the directive contains something that was referenced (likely by extend)
261			// therefore it needs to be shown in output too
262			return true;
263			}
264			}
265
266			return false;
267			}
268
269			/**
270			* Visits a ruleset node.
271			*
272			* @param RulesetNode $node The node
273			* @param VisitorArguments $arguments The arguments
274			*
275			* @return array\|RulesetNode
276			*/
277			public function visitRuleset(RulesetNode $node, VisitorArguments $arguments)
278			{
279			if ($node->firstRoot) {
280			$this->checkPropertiesInRoot($node->rules);
281			}
282
283			$rulesets = [];
284
285			if (!$node->root) {
286			$paths = [];
287			foreach ($node->paths as $p) {
288			if ($p[0]->elements[0]->combinator->value === ' ') {
289			$p[0]->elements[0]->combinator = new CombinatorNode('');
290			}
291			foreach ($p as $pi) {
292			/* @var $pi SelectorNode */
293			if ($pi->getIsReferenced() && $pi->getIsOutput()) {
294			$paths[] = $p;
295			break;
296			}
297			}
298			}
299
300			$node->paths = $paths;
301
302			// Compile rules and rulesets
303			for ($i = 0, $count = count($node->rules); $i < $count;) {
304			$rule = $node->rules[$i];
305			//if ($rule instanceof ILess\ILess\Node\RuleNode \|\| $rule instanceof ILess\ILess\Node\RulesetNode) {
306			//if ($rule instanceof ILess\ILess\Node\RulesetNode) {
307			if (Node::propertyExists($rule, 'rules')) {
308			// visit because we are moving them out from being a child
309			$rulesets[] = $this->visit($rule);
310			array_splice($node->rules, $i, 1);
311			--$count;
312			continue;
313			}
314			++$i;
315			}
316
317			// accept the visitor to remove rules and refactor itself
318			// then we can decide now whether we want it or not
319			if ($count > 0) {
320			$node->accept($this);
321			} else {
322			$node->rules = [];
323			}
324
325			$arguments->visitDeeper = false;
326
327			// accept the visitor to remove rules and refactor itself
328			// then we can decide now whether we want it or not
329			if ($node->rules) {
330			// passed by reference
331			$this->mergeRules($node->rules);
332			}
333
334			if ($node->rules) {
335			// passed by reference
336			$this->removeDuplicateRules($node->rules);
337			}
338
339			// now decide whether we keep the ruleset
340			if ($node->rules && $node->paths) {
341			array_splice($rulesets, 0, 0, [$node]);
342			}
343			} else {
344			$node->accept($this);
345			$arguments->visitDeeper = false;
346			if ($node->firstRoot \|\| count($node->rules) > 0) {
347			array_splice($rulesets, 0, 0, [$node]);
348			}
349			}
350
351			if (count($rulesets) === 1) {
352			return $rulesets[0];
353			}
354
355			return $rulesets;
356			}
357
358			/**
359			* Visits anonymous node.
360			*
361			* @param AnonymousNode $node
362			* @param VisitorArguments $arguments
363			*/
364			public function visitAnonymous(AnonymousNode $node, VisitorArguments $arguments)
365			{
366			if (!$node->getIsReferenced()) {
367			return;
368			}
369
370			$node->accept($this);
371
372			return $node;
373			}
374
375			/**
376			* Checks properties for presence in selector blocks.
377			*
378			* @param array $rules
379			*
380			* @throws CompilerException
381			*/
382			private function checkPropertiesInRoot($rules)
383			{
384			for ($i = 0, $count = count($rules); $i < $count; ++$i) {
385			$ruleNode = $rules[$i];
386			if ($ruleNode instanceof RuleNode && !$ruleNode->variable) {
387			throw new CompilerException(
388			'Properties must be inside selector blocks, they cannot be in the root.',
389			$ruleNode->index,
390			$ruleNode->currentFileInfo
391			);
392			}
393			}
394			}
395
396			/**
397			* Merges rules.
398			*
399			* @param array $rules
400			*/
401			private function mergeRules(array &$rules)
402			{
403			$groups = [];
404			for ($i = 0, $rulesCount = count($rules); $i < $rulesCount; ++$i) {
405			$rule = $rules[$i];
406			if (($rule instanceof RuleNode) && $rule->merge) {
407			$key = $rule->name;
408			if ($rule->important) {
409			$key .= ',!';
410			}
411			if (!isset($groups[$key])) {
412			$groups[$key] = [];
413			} else {
414			array_splice($rules, $i--, 1);
415			--$rulesCount;
416			}
417			$groups[$key][] = $rule;
418			}
419			}
420
421			foreach ($groups as $parts) {
422			if (count($parts) > 1) {
423			$rule = $parts[0];
424			$spacedGroups = [];
425			$lastSpacedGroup = [];
426			foreach ($parts as $p) {
427			if ($p->merge === '+') {
428			if (count($lastSpacedGroup) > 0) {
429			$spacedGroups[] = $this->toExpression($lastSpacedGroup);
430			}
431			$lastSpacedGroup = [];
432			}
433			$lastSpacedGroup[] = $p;
434			}
435			$spacedGroups[] = $this->toExpression($lastSpacedGroup);
436			$rule->value = $this->toValue($spacedGroups);
437			}
438			}
439			}
440
441			/**
442			* Removes duplicates.
443			*
444			* @param array $rules
445			*/
446			private function removeDuplicateRules(array &$rules)
447			{
448			// remove duplicates
449			$ruleCache = [];
450			for ($i = count($rules) - 1; $i >= 0; --$i) {
451			$rule = $rules[$i];
452			if ($rule instanceof RuleNode) {
453			$key = serialize($rule->name);
454			if (!isset($ruleCache[$key])) {
455			$ruleCache[$key] = $rule;
456			} else {
457			$ruleList = &$ruleCache[$key];
458			if ($ruleList instanceof RuleNode) {
459			$ruleList = $ruleCache[$key] = [$ruleCache[$key]->toCSS($this->getContext())];
460			}
461			$ruleCSS = $rule->toCSS($this->getContext());
462			if (array_search($ruleCSS, $ruleList) !== false) {
463			array_splice($rules, $i, 1);
464			} else {
465			$ruleList[] = $ruleCSS;
466			}
467			}
468			}
469			}
470			}
471
472			/**
473			* @param $values
474			*
475			* @return ExpressionNode
476			*/
477			private function toExpression($values)
478			{
479			$mapped = [];
480			foreach ($values as $p) {
481			$mapped[] = $p->value;
482			}
483
484			return new ExpressionNode($mapped);
485			}
486
487			/**
488			* @param $values
489			*
490			* @return ValueNode
491			*/
492			private function toValue($values)
493			{
494			return new ValueNode($values);
495			}
496			}
497

mishal / iless

ToCSSVisitor::visitExtend() A last analyzed 2017-03-09 13:30 UTC

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like

ToCSSVisitor::visitExtend() A
last analyzed 2017-03-09 13:30 UTC