ComposerLockFileParser\ParserCollection

Complexity

Total Complexity

13

Size/Duplication

Total Lines	118
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Importance

Changes

0

11 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	2
A	count()	0	4	1
A	rewind()	0	4	1
A	key()	0	4	1
A	current()	0	4	1
A	next()	0	4	1
A	valid()	0	4	1
A	offsetExists()	0	4	1
A	offsetGet()	0	4	1
A	offsetSet()	0	12	2
A	offsetUnset()	0	4	1

<?php

/**
 * Author: mickael Louzet @micklouzet
 * File: ParserCollection.php
 * Created: 05/12/2019
 */

declare(strict_types=1);

namespace ComposerLockFileParser;

use ComposerLockFileParser\SearcherTrait;

class ParserCollection extends AbstractSearcher implements \Countable, \Iterator, \ArrayAccess
{
    use SearcherTrait;

    private $values = [];

    private $position = 0;

    /**
     * This constructor is there in order to be able to create a collection with
     * its values already added
     */
    public function __construct(array $values = [])
    {
        foreach ($values as $k => $value) {
            $this->offsetSet($k, $value);
        }
    }

    /**
     * Implementation of method declared in \Countable.
     * Provides support for count()
     */
    public function count()
    {
        return count($this->values);
    }

    /**
     * Implementation of method declared in \Iterator
     * Resets the internal cursor to the beginning of the array
     */
    public function rewind()
    {
        $this->position = 0;
    }

    /**
     * Implementation of method declared in \Iterator
     * Used to get the current key (as for instance in a foreach()-structure
     */
    public function key()
    {
        return $this->position;
    }

    /**
     * Implementation of method declared in \Iterator
     * Used to get the value at the current cursor position
     */
    public function current()
    {
        return $this->values[$this->position];
    }

    /**
     * Implementation of method declared in \Iterator
     * Used to move the cursor to the next position
     */
    public function next()
    {
        $this->position++;
    }

    /**
     * Implementation of method declared in \Iterator
     * Checks if the current cursor position is valid
     */
    public function valid()
    {
        return isset($this->values[$this->position]);
    }

    /**
     * Implementation of method declared in \ArrayAccess
     * Used to be able to use functions like isset()
     */
    public function offsetExists($offset)
    {
        return isset($this->values[$offset]);
    }

    /**
     * Implementation of method declared in \ArrayAccess
     * Used for direct access array-like ($collection[$offset]);
     */
    public function offsetGet($offset)
    {
        return $this->values[$offset];
    }

    /**
     * Implementation of method declared in \ArrayAccess
     * Used for direct setting of values
     */
    public function offsetSet($offset, $value)
    {
        // if (!is_int($value)) {
        //     throw new \InvalidArgumentException("Must be an int");
        // }

        if (empty($offset)) { //this happens when you do $collection[] = 1;
            $this->values[] = $value;
        } else {
            $this->values[$offset] = $value;
        }
    }

    /**
     * Implementation of method declared in \ArrayAccess
     * Used for unset()
     */
    public function offsetUnset($offset)
    {
        unset($this->values[$offset]);
    }

}