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43 lines
1020 B
43 lines
1020 B
6 years ago
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<?php
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/** @license MIT
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* Copyright 2018 J. King et al.
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* See LICENSE and AUTHORS files for details */
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declare(strict_types=1);
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namespace JKingWeb\Lax;
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abstract class Collection implements \IteratorAggregate, \ArrayAccess, \Countable {
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protected $data = [];
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abstract public function primary();
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public function getIterator(): \Traversable {
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return ($this->data instanceof \Traversable) ? $this->data : new \ArrayIterator((array) $this->data);
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}
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public function count(): int {
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return count($this->data);
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}
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public function offsetExists($offset): bool {
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return isset($this->data[$offset]);
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}
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public function offsetGet($offset) {
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return $this->data[$offset];
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}
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public function offsetSet($offset, $value) {
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if (is_null($offset)) {
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$this->data[] = $value;
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} else {
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$this->data[$offset] = $value;
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}
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}
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public function offsetUnset($offset) {
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unset($this->data[$offset]);
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}
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}
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