functions.php ➔ iterable_merge() - Code Metrics - Inspection of "Merge pull request #3 from wmde/iterable_merge" - wmde/iterable-functions - Measure and Improve Code Quality continuously with Scrutinizer

Completed

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by Jeroen De

created 2018-09-13 12:22 UTC

functions.php ➔ iterable_merge() A

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Complexity

Conditions	4
Paths	4

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	4

Importance

Changes

Metric	Value
cc	4
nc	4
nop	1
dl	0
loc	9
ccs	5
cts	5
cp	1
crap	4
rs	9.9666
c	0
b	0
f	0

<?php

declare( strict_types = 1 );

/**
 * @license GNU GPL v2+
 * @author Jeroen De Dauw < [email protected] >
 */

function iterable_to_array( iterable $iterable ): array {
	if ( is_array( $iterable ) ) {
		return $iterable;
	}

	return iterator_to_array( $iterable );
}

function iterable_to_iterator( iterable $iterable ): Iterator {
	if ( $iterable instanceof Iterator ) {
		return $iterable;
	}

	if ( is_array( $iterable ) ) {
		return new ArrayIterator( $iterable );
	}

	return new \WMDE\TraversableIterator\TraversableIterator( $iterable );
}

/**
 * array_merge clone for iterables using lazy evaluation
 *
 * As with array_merge, numeric elements with keys are assigned a fresh key,
 * starting with key 0. Unlike array_merge, elements with duplicate non-numeric
 * keys are kept in the Generator. Beware that when converting the Generator
 * to an array with a function such as iterator_to_array, these duplicates will
 * be dropped, resulting in identical behaviour as array_merge.
 *
 *
 * @param iterable ...$iterables
 * @return Generator
 */
function iterable_merge( iterable ...$iterables ): Generator {
	$numericIndex = 0;

	foreach ( $iterables as $iterable ) {
		foreach ( $iterable as $key => $value ) {
			yield is_int( $key ) ? $numericIndex++ : $key => $value;
		}
	}
}

1		<?php
2
3		declare( strict_types = 1 );
4
5		/**
6		* @license GNU GPL v2+
7		* @author Jeroen De Dauw < [email protected] >
8		*/
9
10		function iterable_to_array( iterable $iterable ): array {
11	13	if ( is_array( $iterable ) ) {
12	7	return $iterable;
13		}
14
15	6	return iterator_to_array( $iterable );
16		}
17
18		function iterable_to_iterator( iterable $iterable ): Iterator {
19	16	if ( $iterable instanceof Iterator ) {
20	5	return $iterable;
21		}
22
23	11	if ( is_array( $iterable ) ) {
24	7	return new ArrayIterator( $iterable );
25		}
26
27	4	return new \WMDE\TraversableIterator\TraversableIterator( $iterable );
28		}
29
30		/**
31		* array_merge clone for iterables using lazy evaluation
32		*
33		* As with array_merge, numeric elements with keys are assigned a fresh key,
34		* starting with key 0. Unlike array_merge, elements with duplicate non-numeric
35		* keys are kept in the Generator. Beware that when converting the Generator
36		* to an array with a function such as iterator_to_array, these duplicates will
37		* be dropped, resulting in identical behaviour as array_merge.
38		*
39		*
40		* @param iterable ...$iterables
41		* @return Generator
42		*/
43		function iterable_merge( iterable ...$iterables ): Generator {
44	11	$numericIndex = 0;
45
46	11	foreach ( $iterables as $iterable ) {
47	10	foreach ( $iterable as $key => $value ) {
48	10	yield is_int( $key ) ? $numericIndex++ : $key => $value;
49		}
50		}
51		}

wmde / iterable-functions

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functions.php ➔ iterable_merge() A

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