MixinVisitor::visitMixin() - Code Metrics - Inspection of "Added integration with Markdown" - XaBerr/JATE - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 9ad54b...895d73 )

by Federico

created 2016-08-26 18:08 UTC

MixinVisitor::visitMixin() A

↳ Parent: MixinVisitor

Complexity

Conditions	3
Paths	4

Size

Total Lines	17
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
cc	3
eloc	10
c	1
b	0
f	1
nc	4
nop	1
dl	0
loc	17
rs	9.4285

<?php

namespace Jade\Compiler;

use Jade\Nodes\Mixin;

abstract class MixinVisitor extends CodeVisitor
{
    protected function getMixinArgumentAssign($argument)
    {
        $argument = trim($argument);

        if (preg_match('`^[a-zA-Z][a-zA-Z0-9:_-]*\s*=`', $argument)) {
            return explode('=', $argument, 2);
        }
    }

    protected function parseMixinArguments(&$arguments, &$containsOnlyArrays, &$defaultAttributes)
    {
        $newArrayKey = null;
        $arguments = is_null($arguments) ? array() : explode(',', $arguments);
        foreach ($arguments as $key => &$argument) {
            if ($tab = $this->getMixinArgumentAssign($argument)) {
                if (is_null($newArrayKey)) {
                    $newArrayKey = $key;
                    $argument = array();
                } else {
                    unset($arguments[$key]);
                }

                $defaultAttributes[] = var_export($tab[0], true) . ' => ' . $tab[1];
                $arguments[$newArrayKey][$tab[0]] = static::decodeValue($tab[1]);
                continue;
            }

            $containsOnlyArrays = false;
            $newArrayKey = null;
        }

        return array_map(function ($argument) {
            if (is_array($argument)) {
                $argument = var_export($argument, true);
            }

            return $argument;
        }, $arguments);
    }

    protected function parseMixinStringAttribute($data)
    {
        $value = is_array($data['value'])
            ? preg_split('`\s+`', trim(implode(' ', $data['value'])))
            : trim($data['value']);

        return $data['escaped'] === true
            ? is_array($value)
                ? array_map('htmlspecialchars', $value)
                : htmlspecialchars($value)
            : $value;
    }

    protected function parseMixinAttribute($data)
    {
        if ($data['value'] === 'null' || $data['value'] === 'undefined' || is_null($data['value'])) {
            return;
        }

        if (is_bool($data['value'])) {
            return $data['value'];
        }

        return $this->parseMixinStringAttribute($data);
    }

    protected function parseMixinAttributes($attributes, $defaultAttributes, $mixinAttributes)
    {
        if (!count($attributes)) {
            return "(isset(\$attributes)) ? \$attributes : array($defaultAttributes)";
        }

        $parsedAttributes = array();
        foreach ($attributes as $data) {
            $parsedAttributes[$data['name']] = $this->parseMixinAttribute($data);
        }

        $attributes = var_export($parsedAttributes, true);
        $mixinAttributes = var_export(static::decodeAttributes($mixinAttributes), true);

        return "array_merge(\\Jade\\Compiler::withMixinAttributes($attributes, $mixinAttributes), (isset(\$attributes)) ? \$attributes : array($defaultAttributes))";
    }

    protected function renderClosureOpenning()
    {
        $arguments = func_get_args();
        $begin = array_shift($arguments);
        $begin = is_array($begin)
            ? $begin[0] . 'function ' . $begin[1]
            : $begin . 'function ';
        $params = implode(', ', array_map(function ($name) {
            return (substr($name, 0, 1) === '$' ? '' : '$') . $name;
        }, $arguments));

        if ($this->restrictedScope) {
class MyClass { }

$x = new MyClass();
$x->foo = true;
            return $this->buffer($this->createCode($begin . '(' . $params . ') {'));

        }

        $params = '&$__varHandler, ' . $params;

        $this->buffer(

            $this->createCode($begin . '(' . $params . ') {') .
            $this->createCode($this->indent() . 'extract($__varHandler, EXTR_SKIP);')
        );
    }

    protected function renderClosureClosing($code, $arguments = array())
    {
        if (!$this->restrictedScope) {
            $arguments = array_filter(array_map(function ($argument) {
                $argument = explode('=', $argument);
                $argument = trim($argument[0]);

                return substr($argument, 0, 1) === '$'
                    ? substr($argument, 1)
                    : false;
            }, array_slice($arguments, 1)));
            $exception = count($arguments)
                ? ' && !in_array($key, ' . var_export($arguments, true) . ')'
                : '';
            $this->buffer($this->createCode(

                'foreach ($__varHandler as $key => &$val) {' .
                'if ($key !== \'__varHandler\'' . $exception . ') {' .
                '$val = ${$key};' .
                '}' .
                '}'
            ));
        }

        $this->buffer($this->createCode($code));

    }

    /**
     * @param Nodes\Mixin $mixin
     */
    protected function visitMixinCall(Mixin $mixin, $name, $blockName, $attributes)
    {
        $arguments = $mixin->arguments;
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
        $block = $mixin->block;
        $defaultAttributes = array();
        $containsOnlyArrays = true;
        $arguments = $this->parseMixinArguments($mixin->arguments, $containsOnlyArrays, $defaultAttributes);

        $defaultAttributes = implode(', ', $defaultAttributes);
        $attributes = $this->parseMixinAttributes($attributes, $defaultAttributes, $mixin->attributes);

        if ($block) {
            $this->renderClosureOpenning("\\Jade\\Compiler::recordMixinBlock($blockName, ", 'attributes');
            $this->visit($block);
            $this->renderClosureClosing('});');
        }

        $strings = array();
        $arguments = preg_replace_callback(
            '#([\'"])(.*(?!<\\\\)(?:\\\\{2})*)\\1#U',
            function ($match) use (&$strings) {
                $nextIndex = count($strings);
                $strings[] = $match[0];

                return 'stringToReplaceBy' . $nextIndex . 'ThCapture';
            },
            $arguments
        );
        $arguments = array_map(
            function ($arg) use ($strings) {
                return preg_replace_callback(
                    '#stringToReplaceBy([0-9]+)ThCapture#',
                    function ($match) use ($strings) {
                        return $strings[intval($match[1])];
                    },
                    $arg
                );
            },
            $arguments
        );

        array_unshift($arguments, $attributes);
        $arguments = array_filter($arguments, 'strlen');
        $statements = $this->apply('createStatements', $arguments);

        $variables = array_pop($statements);
        if ($mixin->call && $containsOnlyArrays) {
            array_splice($variables, 1, 0, array('null'));
        }
        $variables = implode(', ', $variables);
        array_push($statements, $variables);

        $arguments = $statements;

        $paramsPrefix = '';
        if (!$this->restrictedScope) {
            $this->buffer($this->createCode('$__varHandler = get_defined_vars();'));

            $paramsPrefix = '$__varHandler, ';
        }
        $codeFormat = str_repeat('%s;', count($arguments) - 1) . "{$name}({$paramsPrefix}%s)";

        array_unshift($arguments, $codeFormat);

        $this->buffer($this->apply('createCode', $arguments));

        if (!$this->restrictedScope) {
            $this->buffer(

                $this->createCode(
                    'extract(array_diff_key($__varHandler, array(\'__varHandler\' => 1, \'attributes\' => 1)));'
                )
            );
        }

        if ($block) {
            $code = $this->createCode("\\Jade\\Compiler::terminateMixinBlock($blockName);");
            $this->buffer($code);

        }
    }

    protected function visitMixinCodeAndBlock($name, $block, $arguments)
    {
        $this->renderClosureOpenning(
            $this->allowMixinOverride
class MyClass { }

$x = new MyClass();
$x->foo = true;
                ? "{$name} = "
                : array("if(!function_exists('{$name}')) { ", $name),
            implode(',', $arguments)
        );
        $this->indents++;
        $this->visit($block);
        $this->indents--;
        $this->renderClosureClosing($this->allowMixinOverride ? '};' : '} }', $arguments);
    }

    /**
     * @param Nodes\Mixin $mixin
     */
    protected function visitMixinDeclaration(Mixin $mixin, $name)
    {
        $arguments = $mixin->arguments;
        $block = $mixin->block;
        $previousVisitedMixin = isset($this->visitedMixin) ? $this->visitedMixin : null;
class MyClass { }

$x = new MyClass();
$x->foo = true;
        $this->visitedMixin = $mixin;
        if ($arguments === null || empty($arguments)) {
            $arguments = array();
        } elseif (!is_array($arguments)) {
            $arguments = array($arguments);
        }

        array_unshift($arguments, 'attributes');
        $arguments = implode(',', $arguments);
        $arguments = explode(',', $arguments);
        array_walk($arguments, array(get_class(), 'initArgToNull'));
        $this->visitMixinCodeAndBlock($name, $block, $arguments);

        if (is_null($previousVisitedMixin)) {
            unset($this->visitedMixin);

            return;
        }

        $this->visitedMixin = $previousVisitedMixin;
    }

    /**
     * @param Nodes\Mixin $mixin
     */
    protected function visitMixin(Mixin $mixin)
    {
        $name = strtr($mixin->name, '-', '_') . '_mixin';
        $blockName = var_export($mixin->name, true);
        if ($this->allowMixinOverride) {
            $name = '$GLOBALS[\'' . $name . '\']';
        }
        $attributes = static::decodeAttributes($mixin->attributes);

        if ($mixin->call) {
            $this->visitMixinCall($mixin, $name, $blockName, $attributes);

            return;
        }

        $this->visitMixinDeclaration($mixin, $name);
    }
}


1			<?php
2
3			namespace Jade\Compiler;
4
5			use Jade\Nodes\Mixin;
6
7			abstract class MixinVisitor extends CodeVisitor
8			{
9			protected function getMixinArgumentAssign($argument)
10			{
11			$argument = trim($argument);
12
13			if (preg_match('`^[a-zA-Z][a-zA-Z0-9:_-]\s=`', $argument)) {
14			return explode('=', $argument, 2);
15			}
16			}
17
18			protected function parseMixinArguments(&$arguments, &$containsOnlyArrays, &$defaultAttributes)
19			{
20			$newArrayKey = null;
21			$arguments = is_null($arguments) ? array() : explode(',', $arguments);
22			foreach ($arguments as $key => &$argument) {
23			if ($tab = $this->getMixinArgumentAssign($argument)) {
24			if (is_null($newArrayKey)) {
25			$newArrayKey = $key;
26			$argument = array();
27			} else {
28			unset($arguments[$key]);
29			}
30
31			$defaultAttributes[] = var_export($tab[0], true) . ' => ' . $tab[1];
32			$arguments[$newArrayKey][$tab[0]] = static::decodeValue($tab[1]);
33			continue;
34			}
35
36			$containsOnlyArrays = false;
37			$newArrayKey = null;
38			}
39
40			return array_map(function ($argument) {
41			if (is_array($argument)) {
42			$argument = var_export($argument, true);
43			}
44
45			return $argument;
46			}, $arguments);
47			}
48
49			protected function parseMixinStringAttribute($data)
50			{
51			$value = is_array($data['value'])
52			? preg_split('`\s+`', trim(implode(' ', $data['value'])))
53			: trim($data['value']);
54
55			return $data['escaped'] === true
56			? is_array($value)
57			? array_map('htmlspecialchars', $value)
58			: htmlspecialchars($value)
59			: $value;
60			}
61
62			protected function parseMixinAttribute($data)
63			{
64			if ($data['value'] === 'null' \|\| $data['value'] === 'undefined' \|\| is_null($data['value'])) {
65			return;
66			}
67
68			if (is_bool($data['value'])) {
69			return $data['value'];
70			}
71
72			return $this->parseMixinStringAttribute($data);
73			}
74
75			protected function parseMixinAttributes($attributes, $defaultAttributes, $mixinAttributes)
76			{
77			if (!count($attributes)) {
78			return "(isset(\$attributes)) ? \$attributes : array($defaultAttributes)";
79			}
80
81			$parsedAttributes = array();
82			foreach ($attributes as $data) {
83			$parsedAttributes[$data['name']] = $this->parseMixinAttribute($data);
84			}
85
86			$attributes = var_export($parsedAttributes, true);
87			$mixinAttributes = var_export(static::decodeAttributes($mixinAttributes), true);
88
89			return "array_merge(\\Jade\\Compiler::withMixinAttributes($attributes, $mixinAttributes), (isset(\$attributes)) ? \$attributes : array($defaultAttributes))";
90			}
91
92			protected function renderClosureOpenning()
93			{
94			$arguments = func_get_args();
95			$begin = array_shift($arguments);
96			$begin = is_array($begin)
97			? $begin[0] . 'function ' . $begin[1]
98			: $begin . 'function ';
99			$params = implode(', ', array_map(function ($name) {
100			return (substr($name, 0, 1) === '$' ? '' : '$') . $name;
101			}, $arguments));
102
103			if ($this->restrictedScope) {
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The property `restrictedScope` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
104			return $this->buffer($this->createCode($begin . '(' . $params . ') {'));
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The method `buffer()` does not exist on `Jade\Compiler\MixinVisitor`. Did you maybe mean `bufferCustomKeyword()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
105			}
106
107			$params = '&$__varHandler, ' . $params;
108
109			$this->buffer(
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The method `buffer()` does not exist on `Jade\Compiler\MixinVisitor`. Did you maybe mean `bufferCustomKeyword()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
110			$this->createCode($begin . '(' . $params . ') {') .
111			$this->createCode($this->indent() . 'extract($__varHandler, EXTR_SKIP);')
112			);
113			}
114
115			protected function renderClosureClosing($code, $arguments = array())
116			{
117			if (!$this->restrictedScope) {
118			$arguments = array_filter(array_map(function ($argument) {
119			$argument = explode('=', $argument);
120			$argument = trim($argument[0]);
121
122			return substr($argument, 0, 1) === '$'
123			? substr($argument, 1)
124			: false;
125			}, array_slice($arguments, 1)));
126			$exception = count($arguments)
127			? ' && !in_array($key, ' . var_export($arguments, true) . ')'
128			: '';
129			$this->buffer($this->createCode(
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The method `buffer()` does not exist on `Jade\Compiler\MixinVisitor`. Did you maybe mean `bufferCustomKeyword()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
130			'foreach ($__varHandler as $key => &$val) {' .
131			'if ($key !== \'__varHandler\'' . $exception . ') {' .
132			'$val = ${$key};' .
133			'}' .
134			'}'
135			));
136			}
137
138			$this->buffer($this->createCode($code));
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The method `buffer()` does not exist on `Jade\Compiler\MixinVisitor`. Did you maybe mean `bufferCustomKeyword()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
139			}
140
141			/**
142			* @param Nodes\Mixin $mixin
143			*/
144			protected function visitMixinCall(Mixin $mixin, $name, $blockName, $attributes)
145			{
146			$arguments = $mixin->arguments;
			0 ignored issues – show Unused Code introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report `$arguments` is not used, you could remove the assignment. This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently. $myVar = 'Value'; $higher = false; if (rand(1, 6) > 3) { $higher = true; } else { $higher = false; } Both the `$myVar` assignment in line 1 and the `$higher` assignment in line 2 are dead. The first because `$myVar` is never used and the second because `$higher` is always overwritten for every possible time line. Loading history...
147			$block = $mixin->block;
148			$defaultAttributes = array();
149			$containsOnlyArrays = true;
150			$arguments = $this->parseMixinArguments($mixin->arguments, $containsOnlyArrays, $defaultAttributes);
151
152			$defaultAttributes = implode(', ', $defaultAttributes);
153			$attributes = $this->parseMixinAttributes($attributes, $defaultAttributes, $mixin->attributes);
154
155			if ($block) {
156			$this->renderClosureOpenning("\\Jade\\Compiler::recordMixinBlock($blockName, ", 'attributes');
157			$this->visit($block);
158			$this->renderClosureClosing('});');
159			}
160
161			$strings = array();
162			$arguments = preg_replace_callback(
163			'#([\'"])(.(?!<\\\\)(?:\\\\{2}))\\1#U',
164			function ($match) use (&$strings) {
165			$nextIndex = count($strings);
166			$strings[] = $match[0];
167
168			return 'stringToReplaceBy' . $nextIndex . 'ThCapture';
169			},
170			$arguments
171			);
172			$arguments = array_map(
173			function ($arg) use ($strings) {
174			return preg_replace_callback(
175			'#stringToReplaceBy([0-9]+)ThCapture#',
176			function ($match) use ($strings) {
177			return $strings[intval($match[1])];
178			},
179			$arg
180			);
181			},
182			$arguments
183			);
184
185			array_unshift($arguments, $attributes);
186			$arguments = array_filter($arguments, 'strlen');
187			$statements = $this->apply('createStatements', $arguments);
188
189			$variables = array_pop($statements);
190			if ($mixin->call && $containsOnlyArrays) {
191			array_splice($variables, 1, 0, array('null'));
192			}
193			$variables = implode(', ', $variables);
194			array_push($statements, $variables);
195
196			$arguments = $statements;
197
198			$paramsPrefix = '';
199			if (!$this->restrictedScope) {
200			$this->buffer($this->createCode('$__varHandler = get_defined_vars();'));
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The method `buffer()` does not exist on `Jade\Compiler\MixinVisitor`. Did you maybe mean `bufferCustomKeyword()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
201			$paramsPrefix = '$__varHandler, ';
202			}
203			$codeFormat = str_repeat('%s;', count($arguments) - 1) . "{$name}({$paramsPrefix}%s)";
204
205			array_unshift($arguments, $codeFormat);
206
207			$this->buffer($this->apply('createCode', $arguments));
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The method `buffer()` does not exist on `Jade\Compiler\MixinVisitor`. Did you maybe mean `bufferCustomKeyword()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
208			if (!$this->restrictedScope) {
209			$this->buffer(
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The method `buffer()` does not exist on `Jade\Compiler\MixinVisitor`. Did you maybe mean `bufferCustomKeyword()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
210			$this->createCode(
211			'extract(array_diff_key($__varHandler, array(\'__varHandler\' => 1, \'attributes\' => 1)));'
212			)
213			);
214			}
215
216			if ($block) {
217			$code = $this->createCode("\\Jade\\Compiler::terminateMixinBlock($blockName);");
218			$this->buffer($code);
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The method `buffer()` does not exist on `Jade\Compiler\MixinVisitor`. Did you maybe mean `bufferCustomKeyword()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
219			}
220			}
221
222			protected function visitMixinCodeAndBlock($name, $block, $arguments)
223			{
224			$this->renderClosureOpenning(
225			$this->allowMixinOverride
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The property `allowMixinOverride` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
226			? "{$name} = "
227			: array("if(!function_exists('{$name}')) { ", $name),
228			implode(',', $arguments)
229			);
230			$this->indents++;
231			$this->visit($block);
232			$this->indents--;
233			$this->renderClosureClosing($this->allowMixinOverride ? '};' : '} }', $arguments);
234			}
235
236			/**
237			* @param Nodes\Mixin $mixin
238			*/
239			protected function visitMixinDeclaration(Mixin $mixin, $name)
240			{
241			$arguments = $mixin->arguments;
242			$block = $mixin->block;
243			$previousVisitedMixin = isset($this->visitedMixin) ? $this->visitedMixin : null;
			0 ignored issues – show Bug introduced 2016-08-26 18:11 UTC by Report Bug Copy Issue Report The property `visitedMixin` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
244			$this->visitedMixin = $mixin;
245			if ($arguments === null \|\| empty($arguments)) {
246			$arguments = array();
247			} elseif (!is_array($arguments)) {
248			$arguments = array($arguments);
249			}
250
251			array_unshift($arguments, 'attributes');
252			$arguments = implode(',', $arguments);
253			$arguments = explode(',', $arguments);
254			array_walk($arguments, array(get_class(), 'initArgToNull'));
255			$this->visitMixinCodeAndBlock($name, $block, $arguments);
256
257			if (is_null($previousVisitedMixin)) {
258			unset($this->visitedMixin);
259
260			return;
261			}
262
263			$this->visitedMixin = $previousVisitedMixin;
264			}
265
266			/**
267			* @param Nodes\Mixin $mixin
268			*/
269			protected function visitMixin(Mixin $mixin)
270			{
271			$name = strtr($mixin->name, '-', '_') . '_mixin';
272			$blockName = var_export($mixin->name, true);
273			if ($this->allowMixinOverride) {
274			$name = '$GLOBALS[\'' . $name . '\']';
275			}
276			$attributes = static::decodeAttributes($mixin->attributes);
277
278			if ($mixin->call) {
279			$this->visitMixinCall($mixin, $name, $blockName, $attributes);
280
281			return;
282			}
283
284			$this->visitMixinDeclaration($mixin, $name);
285			}
286			}
287

XaBerr / JATE

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MixinVisitor::visitMixin() A

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