reductions.php ➔ sub() - Code Metrics - Inspection of "Be more verbose with exeptions during reduce" - zicht/itertools - Measure and Improve Code Quality continuously with Scrutinizer

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created 2017-07-23 11:52 UTC

reductions.php ➔ sub() B

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Complexity

Conditions	5
Paths	1

Size

Total Lines	12
Code Lines	7

Duplication

Lines	12
Ratio	100 %

Code Coverage

Tests	6
CRAP Score	5

Importance

Changes

Metric	Value
cc	5
eloc	7
nc	1
nop	0
dl	12
loc	12
ccs	6
cts	6
cp	1
crap	5
rs	8.8571
c	0
b	0
f	0

<?php
/**
 * @author Boudewijn Schoon <[email protected]>
 * @copyright Zicht Online <http://zicht.nl>
 */

namespace Zicht\Itertools\reductions;

use Zicht\Itertools\lib\ChainIterator;

/**
 * Returns a closure that adds two numbers together
 *
 * @return \Closure
 */
function add()

{
    return function ($a, $b) {
        if (!is_numeric($a)) {
            throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to perform addition, not %s', is_object($a) ? get_class($a) : gettype($a)));
        }
        if (!is_numeric($b)) {
            throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to perform addition, not %s', is_object($b) ? get_class($b) : gettype($b)));
        }
        return $a + $b;
    };
}

/**
 * Returns a closure that subtracts one number from another
 *
 * @return \Closure
 */
function sub()

{
    return function ($a, $b) {
        if (!is_numeric($a)) {
            throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to perform subtraction, not %s', is_object($a) ? get_class($a) : gettype($a)));
        }
        if (!is_numeric($b)) {
            throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to perform subtraction, not %s', is_object($b) ? get_class($b) : gettype($b)));
        }
        return $a - $b;
    };
}

/**
 * Returns a closure that multiplies two numbers
 *
 * @return \Closure
 */
function mul()

{
    return function ($a, $b) {
        if (!is_numeric($a)) {
            throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to perform multiplication, not %s', is_object($a) ? get_class($a) : gettype($a)));
        }
        if (!is_numeric($b)) {
            throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to perform multiplication, not %s', is_object($b) ? get_class($b) : gettype($b)));
        }
        return $a * $b;
    };
}

/**
 * Returns a closure that returns the smallest of two numbers
 *
 * @return \Closure
 */
function min()

{
    return function ($a, $b) {
        if (!is_numeric($a)) {
            throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to determine minimum, not %s', is_object($a) ? get_class($a) : gettype($a)));
        }
        if (!is_numeric($b)) {
            throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to determine minimum, not %s', is_object($b) ? get_class($b) : gettype($b)));
        }
        return $a < $b ? $a : $b;
    };
}

/**
 * Returns a closure that returns the largest of two numbers
 *
 * @return \Closure
 */
function max()

{
    return function ($a, $b) {
        if (!is_numeric($a)) {
            throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to determine maximum, not %s', is_object($a) ? get_class($a) : gettype($a)));
        }
        if (!is_numeric($b)) {
            throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to determine maximum, not %s', is_object($b) ? get_class($b) : gettype($b)));
        }
        return $a < $b ? $b : $a;
    };
}

/**
 * Returns a closure that concatenates two strings using $glue
 *
 * @param string $glue
 * @return \Closure
 */
function join($glue = '')
{
    if (!is_string($glue)) {
        throw new \InvalidArgumentException(sprintf('Argument $GLUE must be a string to join, not %s', is_object($glue) ? get_class($glue) : gettype($glue)));
    }
    return function ($a, $b) use ($glue) {
        if (!is_string($a)) {
            throw new \InvalidArgumentException(sprintf('Argument $A must be a string to join, not %s', is_object($a) ? get_class($a) : gettype($a)));
        }
        if (!is_string($b)) {
            throw new \InvalidArgumentException(sprintf('Argument $B must be a string to join, not %s', is_object($b) ? get_class($b) : gettype($b)));
        }
        return \join($glue, [$a, $b]);
    };
}

/**
 * Returns a closure that chains lists together
 *
 * > $lists = [[1, 2, 3], [4, 5, 6]]
 * > iterable($lists)->reduce(reductions\chain(), new ChainIterator())
 * results in a ChainIterator: 1, 2, 3, 4, 5, 6
 *
 * @return \Closure
 */
function chain()
{
    return function ($chainIterator, $b) {
        if (!($chainIterator instanceof ChainIterator)) {
            throw new \InvalidArgumentException('Argument $A must be a ChainIterator.  Did your call "reduce" with "new ChainIterator()" as the initial parameter?');
        }

        $chainIterator->extend($b);
        return $chainIterator;
    };
}

/**
 * Returns a reduction closure
 *
 * @param string $name
 * @return \Closure
 * @throws \InvalidArgumentException
 *
 * @deprecated please use the reduction functions directly, will be removed in version 3.0
 */
function get_reduction($name)
{
    if (is_string($name)) {
        switch ($name) {
            case 'add':
                return add();
            case 'sub':
                return sub();
            case 'mul':
                return mul();
            case 'min':
                return min();
            case 'max':
                return max();
            case 'join':
                return call_user_func_array('\Zicht\Itertools\reductions\join', array_slice(func_get_args(), 1));
            case 'chain':
                return chain();
        }
    }

    throw new \InvalidArgumentException(sprintf('$NAME "%s" is not a valid reduction.', $name));
}

/**
 * @deprecated please use the reduction functions directly, will be removed in version 3.0
 */
function getReduction($name)

{
    return call_user_func_array('\Zicht\Itertools\reductions\get_reduction', func_get_args());
}


1			<?php
2			/**
3			* @author Boudewijn Schoon <[email protected]>
4			* @copyright Zicht Online <http://zicht.nl>
5			*/
6
7			namespace Zicht\Itertools\reductions;
8
9			use Zicht\Itertools\lib\ChainIterator;
10
11			/**
12			* Returns a closure that adds two numbers together
13			*
14			* @return \Closure
15			*/
16		View Code Duplication	function add()
			0 ignored issues – show Duplication introduced 2017-01-12 12:49 UTC by Report Bug Copy Issue Report This function 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...
17			{
18			return function ($a, $b) {
19	23		if (!is_numeric($a)) {
20	5		throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to perform addition, not %s', is_object($a) ? get_class($a) : gettype($a)));
21			}
22	18		if (!is_numeric($b)) {
23	5		throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to perform addition, not %s', is_object($b) ? get_class($b) : gettype($b)));
24			}
25	13		return $a + $b;
26	30		};
27			}
28
29			/**
30			* Returns a closure that subtracts one number from another
31			*
32			* @return \Closure
33			*/
34		View Code Duplication	function sub()
			0 ignored issues – show Duplication introduced 2017-01-12 12:49 UTC by Report Bug Copy Issue Report This function seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
35			{
36			return function ($a, $b) {
37	19		if (!is_numeric($a)) {
38	5		throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to perform subtraction, not %s', is_object($a) ? get_class($a) : gettype($a)));
39			}
40	14		if (!is_numeric($b)) {
41	5		throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to perform subtraction, not %s', is_object($b) ? get_class($b) : gettype($b)));
42			}
43	9		return $a - $b;
44	20		};
45			}
46
47			/**
48			* Returns a closure that multiplies two numbers
49			*
50			* @return \Closure
51			*/
52		View Code Duplication	function mul()
			0 ignored issues – show Duplication introduced 2017-01-12 12:49 UTC by Report Bug Copy Issue Report This function seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
53			{
54			return function ($a, $b) {
55	18		if (!is_numeric($a)) {
56	5		throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to perform multiplication, not %s', is_object($a) ? get_class($a) : gettype($a)));
57			}
58	13		if (!is_numeric($b)) {
59	5		throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to perform multiplication, not %s', is_object($b) ? get_class($b) : gettype($b)));
60			}
61	8		return $a * $b;
62	18		};
63			}
64
65			/**
66			* Returns a closure that returns the smallest of two numbers
67			*
68			* @return \Closure
69			*/
70		View Code Duplication	function min()
			0 ignored issues – show Duplication introduced 2017-01-12 12:49 UTC by Report Bug Copy Issue Report This function seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
71			{
72			return function ($a, $b) {
73	18		if (!is_numeric($a)) {
74	5		throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to determine minimum, not %s', is_object($a) ? get_class($a) : gettype($a)));
75			}
76	13		if (!is_numeric($b)) {
77	5		throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to determine minimum, not %s', is_object($b) ? get_class($b) : gettype($b)));
78			}
79	8		return $a < $b ? $a : $b;
80	18		};
81			}
82
83			/**
84			* Returns a closure that returns the largest of two numbers
85			*
86			* @return \Closure
87			*/
88		View Code Duplication	function max()
			0 ignored issues – show Duplication introduced 2017-01-12 12:49 UTC by Report Bug Copy Issue Report This function seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
89			{
90			return function ($a, $b) {
91	18		if (!is_numeric($a)) {
92	5		throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to determine maximum, not %s', is_object($a) ? get_class($a) : gettype($a)));
93			}
94	13		if (!is_numeric($b)) {
95	5		throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to determine maximum, not %s', is_object($b) ? get_class($b) : gettype($b)));
96			}
97	8		return $a < $b ? $b : $a;
98	18		};
99			}
100
101			/**
102			* Returns a closure that concatenates two strings using $glue
103			*
104			* @param string $glue
105			* @return \Closure
106			*/
107			function join($glue = '')
108			{
109	22		if (!is_string($glue)) {
110	5		throw new \InvalidArgumentException(sprintf('Argument $GLUE must be a string to join, not %s', is_object($glue) ? get_class($glue) : gettype($glue)));
111			}
112			return function ($a, $b) use ($glue) {
113	17		if (!is_string($a)) {
114	6		throw new \InvalidArgumentException(sprintf('Argument $A must be a string to join, not %s', is_object($a) ? get_class($a) : gettype($a)));
115			}
116	11		if (!is_string($b)) {
117	6		throw new \InvalidArgumentException(sprintf('Argument $B must be a string to join, not %s', is_object($b) ? get_class($b) : gettype($b)));
118			}
119	5		return \join($glue, [$a, $b]);
120	17		};
121			}
122
123			/**
124			* Returns a closure that chains lists together
125			*
126			* > $lists = [[1, 2, 3], [4, 5, 6]]
127			* > iterable($lists)->reduce(reductions\chain(), new ChainIterator())
128			* results in a ChainIterator: 1, 2, 3, 4, 5, 6
129			*
130			* @return \Closure
131			*/
132			function chain()
133			{
134			return function ($chainIterator, $b) {
135	4		if (!($chainIterator instanceof ChainIterator)) {
136	1		throw new \InvalidArgumentException('Argument $A must be a ChainIterator. Did your call "reduce" with "new ChainIterator()" as the initial parameter?');
137			}
138
139	3		$chainIterator->extend($b);
140	3		return $chainIterator;
141	5		};
142			}
143
144			/**
145			* Returns a reduction closure
146			*
147			* @param string $name
148			* @return \Closure
149			* @throws \InvalidArgumentException
150			*
151			* @deprecated please use the reduction functions directly, will be removed in version 3.0
152			*/
153			function get_reduction($name)
154			{
155			if (is_string($name)) {
156			switch ($name) {
157			case 'add':
158			return add();
159			case 'sub':
160			return sub();
161			case 'mul':
162			return mul();
163			case 'min':
164			return min();
165			case 'max':
166			return max();
167			case 'join':
168			return call_user_func_array('\Zicht\Itertools\reductions\join', array_slice(func_get_args(), 1));
169			case 'chain':
170			return chain();
171			}
172			}
173
174			throw new \InvalidArgumentException(sprintf('$NAME "%s" is not a valid reduction.', $name));
175			}
176
177			/**
178			* @deprecated please use the reduction functions directly, will be removed in version 3.0
179			*/
180			function getReduction($name)
			0 ignored issues – show Unused Code introduced 2017-01-12 12:49 UTC by Report Bug Copy Issue Report The parameter `$name` 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...
181			{
182			return call_user_func_array('\Zicht\Itertools\reductions\get_reduction', func_get_args());
183			}
184

zicht / itertools

Push — master ( a63c4d...1c0269 )

reductions.php ➔ sub() B

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