Collection::compileForeach() - Code Metrics - Inspection of "improve ParseError handling" - spindle/spindle-collection - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 36709f...e26ed7 )

by Hiraku

created 2017-06-24 14:13 UTC

Collection::compileForeach() A

↳ Parent: Collection

Complexity

Conditions	1
Paths	1

Size

Total Lines	12
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	12
ccs	8
cts	8
cp	1
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	8
nc	1
nop	1
crap	1

<?php
namespace Spindle;

class Collection implements \IteratorAggregate
{
    const TYPE_FOR = 'for';
    const TYPE_FOREACH = 'foreach';

    private $type = self::TYPE_FOREACH;
    private $debug = false;

    private $ops = [];
    private $seed;
    private $is_array;
    private $vars = [];
    private $fn_cnt = 0;

    /**
     * @return \Spindle\Collection
     */
    public static function from($iterable, $debug = null)
    {
        return new static($iterable, $debug);
    }

    /**
     * Generator-based range()
     * @param int|string $start
     * @param int|string $end
     * @param int $step
     * @param bool $debug
     * @return \Spindle\Collection
     */
    public static function range($start, $end, $step = 1, $debug = null)
    {
        if (is_numeric($start) && is_numeric($end)) {
            $seed = [
                '$_current = ' . $start,
                '$_current <= ' . $end,
                $step === 1 ? '++$_current' : '$_current += ' . $step,
            ];
        } else {
            $seed = [
                '$_current = ' . var_export($start, 1),
                '$_current <= ' . var_export($end, 1),
                implode(',', array_fill(0, $step, '++$_current')),
            ];
        }
        return new static($seed, $debug, self::TYPE_FOR);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
    }

    /**
     * Generator-based repeat()
     * @param mixed $elem
     * @param int $count
     * @param bool $debug
     */
    public static function repeat($elem, $count, $debug = null)
    {
        if (!is_int($count) || $count < 0) {
            throw new \InvalidArgumentException('$count must be int >= 0. given: ' . gettype($count));
        }
        $seed = [
            '$_current = $_elem, $_count = ' . var_export($count, 1),
            '$_count > 0',
            '--$_count'
        ];
        $collection = new static($seed, $debug, self::TYPE_FOR);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        $collection->vars['_elem'] = $elem;
        return $collection;
    }

    /**
     * @param iterable $seed
     */
    public function __construct($seed, $debug = null, $type = null)
    {
        if (!is_array($seed) && !is_object($seed)) {
            throw new \InvalidArgumentException('$seed should be iterable, given ' . gettype($seed));
        }
        $this->seed = $seed;
        if ($debug) {
            $this->debug = true;
        }
        if ($type === self::TYPE_FOR) {
            $this->type = $type;
            $this->is_array = false;
            return;
        }
        $this->is_array = is_array($seed);
    }

    private function step()
    {
        if ($this->debug) {
            $this->toArray();
            return $this;
        }
        return $this;
    }

    /**
     * @param string|callable $fn '$_ > 100'
     * @return $this
     */
    public function filter($fn)

    {
        $this->is_array = false;
        if (is_callable($fn)) {
            $fn_name = '_fn' . $this->fn_cnt++;
            $this->vars[$fn_name] = $fn;
            $this->ops[] = '    if (!$' . $fn_name . '($_)) continue;';
        } else {
            $this->ops[] = '    if (!(' . $fn . ')) continue;';
        }
        return $this->step();
    }

    /**
     * @param string|callable $fn '$_ > 100'
     * @return $this
     */
    public function reject($fn)

    {
        $this->is_array = false;
        if (is_callable($fn)) {
            $fn_name = '_fn' . $this->fn_cnt++;
            $this->vars[$fn_name] = $fn;
            $this->ops[] = '    if ($' . $fn_name . '($_)) continue;';
        } else {
            $this->ops[] = '    if (' . $fn . ') continue;';
        }
        return $this->step();
    }

    /**
     * @param string|callable $fn '$_ * 2'
     * @return $this
     */
    public function map($fn)

    {
        $this->is_array = false;
        if (is_callable($fn)) {
            $fn_name = '_fn' . $this->fn_cnt++;
            $this->vars[$fn_name] = $fn;
            $this->ops[] = '    $_ = $' . $fn_name . '($_);';
        } else {
            $this->ops[] = '    $_ = ' . $fn . ';';
        }
        return $this->step();
    }

    /**
     * @param string[] column
     * @return $this
     */
    public function column(array $columns)
    {
        $this->is_array = false;
        $defs = [];
        foreach ($columns as $key) {
            $exported = var_export($key, 1);
            $defs[] = "$exported => \$_[$exported]";
        }
        $this->ops[] = '    $_ = [' . implode(',', $defs) . '];';
        return $this->step();
    }

    /**
     * @param int $offset
     * @param ?int $length

     * @return $this
     */
    public function slice($offset, $length = null)
    {
        if ($offset < 0) {
            return new $this(array_slice($this->toArray(), $offset, $length), $this->debug);
        }
        $this->ops[] = '    if ($_i < ' . $offset . ') continue;';
        if ($length !== null) {
            $this->ops[] = '    if ($_i >= ' . ($offset + $length) . ') break;';
        }
        return $this->step();
    }

    /**
     * @param int $size
     * @return $this
     */
    public function chunk($size)
    {
        return new $this(array_chunk($this->toArray(), $size), $this->debug);
    }

    /**
     * @return \Spindle\Collection (new instance)
     */
    public function unique()
    {
        return new $this(array_unique($this->toArray()), $this->debug);
    }

    /**
     * @return \Spindle\Collection (new instance)
     */
    public function flip()
    {
        $this->is_array = false;
        $this->ops[] = 'list($_key, $_) = array($_, $_key);';
        return $this->step();
    }

    /**
     * @param string|callable $fn '$_carry + $_'
     * @param mixed $initial
     * @return mixed
     */
    public function reduce($fn, $initial = null)
    {
        $ops = $this->ops;
        $this->vars['_carry'] = $initial;
        if (is_callable($fn)) {
            $fn_name = '_fn' . $this->fn_cnt++;
            $this->vars[$fn_name] = $fn;
            $ops[] = '    $_carry = $' . $fn_name . '($_, $_carry);';
        } else {
            $ops[] = '    $_carry = ' . $fn . ';';
        }
        $after = '$_result = $_carry;';
        return self::evaluate($this->seed, $this->vars, $this->compile($ops), '', $after);
    }

    /**
     * @return int|float
     */
    public function sum()

    {
        $ops = $this->ops;
        $before = '$_result = 0;';
        $ops[] = '    $_result += $_;';

        return self::evaluate($this->seed, $this->vars, $this->compile($ops), $before, '');
    }

    /**
     * @return int|float
     */
    public function product()

    {
        $ops = $this->ops;
        $before = '$_result = 1;';
        $ops[] = '    $_result *= $_;';

        return self::evaluate($this->seed, $this->vars, $this->compile($ops), $before, '');
    }

    /**
     * @return \Spindle\Collection (new instance)
     */
    public function usort(callable $cmp)
    {
        $array = $this->toArray();
        usort($array, $cmp);
        return new $this($array, $this->debug);
    }

    /**
     * @return \Spindle\Collection (new instance)
     */
    public function rsort($sort_flags = \SORT_REGULAR)
    {
        $array = $this->toArray();
        rsort($array, $sort_flags);
        return new $this($array, $this->debug);
    }

    /**
     * @return \Spindle\Collection (new instance)
     */
    public function sort($sort_flags = \SORT_REGULAR)
    {
        $array = $this->toArray();
        sort($array, $sort_flags);
        return new $this($array, $this->debug);
    }

    /**
     * @return \Generator
     */
    public function getIterator()

    {
        $ops = $this->ops;
        $ops[] = 'yield $_key => $_;';
        $gen = self::evaluate(
class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();
            $this->seed,
            $this->vars,
            $this->compile($ops),
            '$_result = static function() use($_seed){',
            '};'
        );
        return $gen();
    }

    /**
     * @return array
     */
    public function toArray()
    {
        if ($this->is_array) {
            return $this->seed;
        }
        $ops = $this->ops;
        $ops[] = '    $_result[$_key] = $_;';
        $array = self::evaluate(
class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();
            $this->seed,
            $this->vars,
            $this->compile($ops),
            '$_result = [];',
            ''
        );
        $this->type = self::TYPE_FOREACH;
        $this->is_array = true;
        $this->ops = [];
        $this->seed = $array;
        $this->vars = [];
        $this->fn_cnt = 0;
        return $array;
    }

    /**
     * @return $this
     */
    public function dump()
    {
        var_dump($this);

        return $this;
    }

    /**
     * @return $this
     */
    public function assignTo(&$var = null)
    {
        $var = new $this($this->toArray());
        return $var;
    }

    /**
     * @return $this
     */
    public function assignArrayTo(&$var = null)
    {
        $var = $this->toArray();
        return $this;
    }

    /**
     * @return string
     */
    public function __toString()
    {
        return implode("\n", [
            static::class,
            ' array-mode:' . (int)$this->is_array,
            " codes:\n  " . implode("\n  ", $this->ops)
        ]);
    }

    /**
     * @return array
     */
    public function __debugInfo()
    {
        if (is_array($this->seed)) {
            $cnt = count($this->seed);
            if ($cnt === 0) {
                $seed = "empty array()";
            } else {
                $first = gettype(current($this->seed));
                $seed = "array($first, ...($cnt items))";
            }
        } else {
            $seed = get_class($this->seed);
        }
        return [
            'seed' => $seed,
            'code' => $this->compile($this->ops),
        ];
    }

    private static function evaluate($_seed, $_vars, $_code, $_before, $_after)

    {
        $_old_handler = set_error_handler(function($severity, $message, $file, $line){
            throw new \ErrorException($message, 0, $severity, $file, $line);
        }, E_ALL ^ E_DEPRECATED ^ E_USER_DEPRECATED);
        try {
            $_result = null;
            extract($_vars);
            eval("$_before \n $_code \n $_after");

        } catch (\ParseError $e) {

            throw new \RuntimeException($e->getMessage(), $e->getCode(), $e);
        } finally {
            set_error_handler($_old_handler);
        }
        return $_result;
    }

    private function compile($ops)
    {
        if ($this->type === self::TYPE_FOR) {
            return $this->compileFor($ops, $this->seed);
        }

        return $this->compileForeach($ops);
    }

    private static function compileFor($ops, $seed)
    {
        array_unshift(
            $ops,
            '$_i = 0;',
            'for (' . implode('; ', $seed). ') {',
            '    $_key = $_i;',
            '    $_ = $_current;',
            '    ++$_i;'
        );
        $ops[] = '}';

        return implode("\n", $ops);
    }

    private static function compileForeach($ops)
    {
        array_unshift(
            $ops,
            '$_i = 0;',
            'foreach ($_seed as $_key => $_) {',
            '    ++$_i;'
        );
        $ops[] = '}';

        return implode("\n", $ops);
    }
}


1			<?php
2			namespace Spindle;
3
4			class Collection implements \IteratorAggregate
5			{
6			const TYPE_FOR = 'for';
7			const TYPE_FOREACH = 'foreach';
8
9			private $type = self::TYPE_FOREACH;
10			private $debug = false;
11
12			private $ops = [];
13			private $seed;
14			private $is_array;
15			private $vars = [];
16			private $fn_cnt = 0;
17
18			/**
19			* @return \Spindle\Collection
20			*/
21	7		public static function from($iterable, $debug = null)
22			{
23	7		return new static($iterable, $debug);
24			}
25
26			/**
27			* Generator-based range()
28			* @param int\|string $start
29			* @param int\|string $end
30			* @param int $step
31			* @param bool $debug
32			* @return \Spindle\Collection
33			*/
34	13		public static function range($start, $end, $step = 1, $debug = null)
35			{
36	13		if (is_numeric($start) && is_numeric($end)) {
37			$seed = [
38	13		'$_current = ' . $start,
39	13		'$_current <= ' . $end,
40	13		$step === 1 ? '++$_current' : '$_current += ' . $step,
41	13		];
42	13		} else {
43			$seed = [
44			'$_current = ' . var_export($start, 1),
45			'$_current <= ' . var_export($end, 1),
46			implode(',', array_fill(0, $step, '++$_current')),
47			];
48			}
49	13		return new static($seed, $debug, self::TYPE_FOR);
			0 ignored issues – show Documentation introduced 2017-06-24 14:15 UTC by Report Bug Copy Issue Report `$seed` is of type `array<integer,string,{"0..."string","2":"string"}>`, but the function expects a `object<Spindle\iterable>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
50			}
51
52			/**
53			* Generator-based repeat()
54			* @param mixed $elem
55			* @param int $count
56			* @param bool $debug
57			*/
58	2		public static function repeat($elem, $count, $debug = null)
59			{
60	2		if (!is_int($count) \|\| $count < 0) {
61	1		throw new \InvalidArgumentException('$count must be int >= 0. given: ' . gettype($count));
62			}
63			$seed = [
64	1		'$_current = $_elem, $_count = ' . var_export($count, 1),
65	1		'$_count > 0',
66			'--$_count'
67	1		];
68	1		$collection = new static($seed, $debug, self::TYPE_FOR);
			0 ignored issues – show Documentation introduced 2017-06-24 14:15 UTC by Report Bug Copy Issue Report `$seed` is of type `array<integer,string,{"0..."string","2":"string"}>`, but the function expects a `object<Spindle\iterable>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
69	1		$collection->vars['_elem'] = $elem;
70	1		return $collection;
71			}
72
73			/**
74			* @param iterable $seed
75			*/
76	21		public function __construct($seed, $debug = null, $type = null)
77			{
78	21		if (!is_array($seed) && !is_object($seed)) {
79	1		throw new \InvalidArgumentException('$seed should be iterable, given ' . gettype($seed));
80			}
81	20		$this->seed = $seed;
82	20		if ($debug) {
83			$this->debug = true;
84			}
85	20		if ($type === self::TYPE_FOR) {
86	14		$this->type = $type;
87	14		$this->is_array = false;
88	14		return;
89			}
90	10		$this->is_array = is_array($seed);
91	10		}
92
93	8		private function step()
94			{
95	8		if ($this->debug) {
96			$this->toArray();
97			return $this;
98			}
99	8		return $this;
100			}
101
102			/**
103			* @param string\|callable $fn '$_ > 100'
104			* @return $this
105			*/
106	2	View Code Duplication	public function filter($fn)
			0 ignored issues – show Duplication introduced 2017-06-18 07:08 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...
107			{
108	2		$this->is_array = false;
109	2		if (is_callable($fn)) {
110	1		$fn_name = '_fn' . $this->fn_cnt++;
111	1		$this->vars[$fn_name] = $fn;
112	1		$this->ops[] = ' if (!$' . $fn_name . '($_)) continue;';
113	1		} else {
114	2		$this->ops[] = ' if (!(' . $fn . ')) continue;';
115			}
116	2		return $this->step();
117			}
118
119			/**
120			* @param string\|callable $fn '$_ > 100'
121			* @return $this
122			*/
123		View Code Duplication	public function reject($fn)
			0 ignored issues – show Duplication introduced 2017-06-18 07:08 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...
124			{
125			$this->is_array = false;
126			if (is_callable($fn)) {
127			$fn_name = '_fn' . $this->fn_cnt++;
128			$this->vars[$fn_name] = $fn;
129			$this->ops[] = ' if ($' . $fn_name . '($_)) continue;';
130			} else {
131			$this->ops[] = ' if (' . $fn . ') continue;';
132			}
133			return $this->step();
134			}
135
136			/**
137			* @param string\|callable $fn '$_ * 2'
138			* @return $this
139			*/
140	4	View Code Duplication	public function map($fn)
			0 ignored issues – show Duplication introduced 2017-06-24 14:15 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...
141			{
142	4		$this->is_array = false;
143	4		if (is_callable($fn)) {
144	1		$fn_name = '_fn' . $this->fn_cnt++;
145	1		$this->vars[$fn_name] = $fn;
146	1		$this->ops[] = ' $_ = $' . $fn_name . '($_);';
147	1		} else {
148	4		$this->ops[] = ' $_ = ' . $fn . ';';
149			}
150	4		return $this->step();
151			}
152
153			/**
154			* @param string[] column
155			* @return $this
156			*/
157	1		public function column(array $columns)
158			{
159	1		$this->is_array = false;
160	1		$defs = [];
161	1		foreach ($columns as $key) {
162	1		$exported = var_export($key, 1);
163	1		$defs[] = "$exported => \$_[$exported]";
164	1		}
165	1		$this->ops[] = ' $_ = [' . implode(',', $defs) . '];';
166	1		return $this->step();
167			}
168
169			/**
170			* @param int $offset
171			* @param ?int $length
			0 ignored issues – show Documentation introduced 2017-06-18 07:08 UTC by Report Bug Copy Issue Report The doc-type `?int` could not be parsed: Unknown type name "?int" at position 0. (view supported doc-types) This check marks PHPDoc comments that could not be parsed by our parser. To see which comment annotations we can parse, please refer to our documentation on supported doc-types. Loading history...
172			* @return $this
173			*/
174	1		public function slice($offset, $length = null)
175			{
176	1		if ($offset < 0) {
177	1		return new $this(array_slice($this->toArray(), $offset, $length), $this->debug);
178			}
179	1		$this->ops[] = ' if ($_i < ' . $offset . ') continue;';
180	1		if ($length !== null) {
181	1		$this->ops[] = ' if ($_i >= ' . ($offset + $length) . ') break;';
182	1		}
183	1		return $this->step();
184			}
185
186			/**
187			* @param int $size
188			* @return $this
189			*/
190	1		public function chunk($size)
191			{
192	1		return new $this(array_chunk($this->toArray(), $size), $this->debug);
193			}
194
195			/**
196			* @return \Spindle\Collection (new instance)
197			*/
198	1		public function unique()
199			{
200	1		return new $this(array_unique($this->toArray()), $this->debug);
201			}
202
203			/**
204			* @return \Spindle\Collection (new instance)
205			*/
206	1		public function flip()
207			{
208	1		$this->is_array = false;
209	1		$this->ops[] = 'list($_key, $_) = array($_, $_key);';
210	1		return $this->step();
211			}
212
213			/**
214			* @param string\|callable $fn '$_carry + $_'
215			* @param mixed $initial
216			* @return mixed
217			*/
218	1		public function reduce($fn, $initial = null)
219			{
220	1		$ops = $this->ops;
221	1		$this->vars['_carry'] = $initial;
222	1		if (is_callable($fn)) {
223	1		$fn_name = '_fn' . $this->fn_cnt++;
224	1		$this->vars[$fn_name] = $fn;
225	1		$ops[] = ' $_carry = $' . $fn_name . '($_, $_carry);';
226	1		} else {
227	1		$ops[] = ' $_carry = ' . $fn . ';';
228			}
229	1		$after = '$_result = $_carry;';
230	1		return self::evaluate($this->seed, $this->vars, $this->compile($ops), '', $after);
231			}
232
233			/**
234			* @return int\|float
235			*/
236	3	View Code Duplication	public function sum()
			0 ignored issues – show Duplication introduced 2017-06-18 05:19 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...
237			{
238	3		$ops = $this->ops;
239	3		$before = '$_result = 0;';
240	3		$ops[] = ' $_result += $_;';
241
242	3		return self::evaluate($this->seed, $this->vars, $this->compile($ops), $before, '');
243			}
244
245			/**
246			* @return int\|float
247			*/
248	1	View Code Duplication	public function product()
			0 ignored issues – show Duplication introduced 2017-06-18 05:19 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...
249			{
250	1		$ops = $this->ops;
251	1		$before = '$_result = 1;';
252	1		$ops[] = ' $_result *= $_;';
253
254	1		return self::evaluate($this->seed, $this->vars, $this->compile($ops), $before, '');
255			}
256
257			/**
258			* @return \Spindle\Collection (new instance)
259			*/
260	1		public function usort(callable $cmp)
261			{
262	1		$array = $this->toArray();
263	1		usort($array, $cmp);
264	1		return new $this($array, $this->debug);
265			}
266
267			/**
268			* @return \Spindle\Collection (new instance)
269			*/
270	1		public function rsort($sort_flags = \SORT_REGULAR)
271			{
272	1		$array = $this->toArray();
273	1		rsort($array, $sort_flags);
274	1		return new $this($array, $this->debug);
275			}
276
277			/**
278			* @return \Spindle\Collection (new instance)
279			*/
280	1		public function sort($sort_flags = \SORT_REGULAR)
281			{
282	1		$array = $this->toArray();
283	1		sort($array, $sort_flags);
284	1		return new $this($array, $this->debug);
285			}
286
287			/**
288			* @return \Generator
289			*/
290	1	View Code Duplication	public function getIterator()
			0 ignored issues – show Duplication introduced 2017-06-18 05:19 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...
291			{
292	1		$ops = $this->ops;
293	1		$ops[] = 'yield $_key => $_;';
294	1		$gen = self::evaluate(
			0 ignored issues – show Bug introduced 2017-06-18 07:08 UTC by Report Bug Copy Issue Report Are you sure the assignment to `$gen` is correct as `self::evaluate($this->se...() use($_seed){', '};')` (which targets `Spindle\Collection::evaluate()`) seems to always return null. This check looks for function or method calls that always return null and whose return value is assigned to a variable. class A { function getObject() { return null; } } $a = new A(); $object = $a->getObject(); 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. Loading history...
295	1		$this->seed,
296	1		$this->vars,
297	1		$this->compile($ops),
298	1		'$_result = static function() use($_seed){',
299			'};'
300	1		);
301	1		return $gen();
302			}
303
304			/**
305			* @return array
306			*/
307	12		public function toArray()
308			{
309	12		if ($this->is_array) {
310	6		return $this->seed;
311			}
312	8		$ops = $this->ops;
313	8		$ops[] = ' $_result[$_key] = $_;';
314	8		$array = self::evaluate(
			0 ignored issues – show Bug introduced 2017-06-24 14:15 UTC by Report Bug Copy Issue Report Are you sure the assignment to `$array` is correct as `self::evaluate($this->se..., '$_result = [];', '')` (which targets `Spindle\Collection::evaluate()`) seems to always return null. This check looks for function or method calls that always return null and whose return value is assigned to a variable. class A { function getObject() { return null; } } $a = new A(); $object = $a->getObject(); 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. Loading history...
315	8		$this->seed,
316	8		$this->vars,
317	8		$this->compile($ops),
318	8		'$_result = [];',
319			''
320	8		);
321	8		$this->type = self::TYPE_FOREACH;
322	8		$this->is_array = true;
323	8		$this->ops = [];
324	8		$this->seed = $array;
325	8		$this->vars = [];
326	8		$this->fn_cnt = 0;
327	8		return $array;
328			}
329
330			/**
331			* @return $this
332			*/
333	1		public function dump()
334			{
335	1		var_dump($this);
			0 ignored issues – show Security Debugging Code introduced 2017-06-18 07:08 UTC by Report Bug Copy Issue Report `var_dump($this);` looks like debug code. Are you sure you do not want to remove it? This might expose sensitive data. Loading history...
336	1		return $this;
337			}
338
339			/**
340			* @return $this
341			*/
342	1		public function assignTo(&$var = null)
343			{
344	1		$var = new $this($this->toArray());
345	1		return $var;
346			}
347
348			/**
349			* @return $this
350			*/
351	1		public function assignArrayTo(&$var = null)
352			{
353	1		$var = $this->toArray();
354	1		return $this;
355			}
356
357			/**
358			* @return string
359			*/
360	1		public function __toString()
361			{
362	1		return implode("\n", [
363	1		static::class,
364	1		' array-mode:' . (int)$this->is_array,
365	1		" codes:\n " . implode("\n ", $this->ops)
366	1		]);
367			}
368
369			/**
370			* @return array
371			*/
372	1		public function __debugInfo()
373			{
374	1		if (is_array($this->seed)) {
375	1		$cnt = count($this->seed);
376	1		if ($cnt === 0) {
377	1		$seed = "empty array()";
378	1		} else {
379	1		$first = gettype(current($this->seed));
380	1		$seed = "array($first, ...($cnt items))";
381			}
382	1		} else {
383	1		$seed = get_class($this->seed);
384			}
385			return [
386	1		'seed' => $seed,
387	1		'code' => $this->compile($this->ops),
388	1		];
389			}
390
391			private static function evaluate($_seed, $_vars, $_code, $_before, $_after)
			0 ignored issues – show Unused Code introduced 2017-06-18 05:19 UTC by Report Bug Copy Issue Report The parameter `$_seed` 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...
392			{
393	14		$_old_handler = set_error_handler(function($severity, $message, $file, $line){
394			throw new \ErrorException($message, 0, $severity, $file, $line);
395	14		}, E_ALL ^ E_DEPRECATED ^ E_USER_DEPRECATED);
396			try {
397	14		$_result = null;
398	14		extract($_vars);
399	14		eval("$_before \n $_code \n $_after");
			0 ignored issues – show Coding Style introduced 2017-06-18 05:19 UTC by Report Bug Copy Issue Report It is generally not recommended to use `eval` unless absolutely required. On one hand, `eval` might be exploited by malicious users if they somehow manage to inject dynamic content. On the other hand, with the emergence of faster PHP runtimes like the HHVM, `eval` prevents some optimization that they perform. Loading history...
400	14		} catch (\ParseError $e) {
			0 ignored issues – show Bug introduced 2017-06-24 14:15 UTC by Report Bug Copy Issue Report The class `ParseError` does not exist. Did you forget a USE statement, or did you not list all dependencies? Scrutinizer analyzes your `composer.json`/`composer.lock` file if available to determine the classes, and functions that are defined by your dependencies. It seems like the listed class was neither found in your dependencies, nor was it found in the analyzed files in your repository. If you are using some other form of dependency management, you might want to disable this analysis. Loading history...
401			throw new \RuntimeException($e->getMessage(), $e->getCode(), $e);
402	14		} finally {
403	14		set_error_handler($_old_handler);
404			}
405	14		return $_result;
406			}
407
408	15		private function compile($ops)
409			{
410	15		if ($this->type === self::TYPE_FOR) {
411	12		return $this->compileFor($ops, $this->seed);
412			}
413
414	3		return $this->compileForeach($ops);
415			}
416
417	12		private static function compileFor($ops, $seed)
418			{
419	12		array_unshift(
420	12		$ops,
421	12		'$_i = 0;',
422	12		'for (' . implode('; ', $seed). ') {',
423	12		' $_key = $_i;',
424	12		' $_ = $_current;',
425			' ++$_i;'
426	12		);
427	12		$ops[] = '}';
428
429	12		return implode("\n", $ops);
430			}
431
432	3		private static function compileForeach($ops)
433			{
434	3		array_unshift(
435	3		$ops,
436	3		'$_i = 0;',
437	3		'foreach ($_seed as $_key => $_) {',
438			' ++$_i;'
439	3		);
440	3		$ops[] = '}';
441
442	3		return implode("\n", $ops);
443			}
444			}
445

spindle / spindle-collection

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Collection::compileForeach() A

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