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56 lines
1.3 KiB
56 lines
1.3 KiB
<?php
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/** @license MIT
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* Copyright 2021 Dustin Wilson et al.
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* See LICENSE file for details */
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declare(strict_types=1);
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namespace MensBeam\Lit\Scope;
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class Scope extends Node {
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protected bool $_anchorToPrevious;
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protected array $_atoms = [];
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protected ?\WeakReference $_parent;
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public function __construct(?Scope $parent = null, bool $anchorToPrevious = false, string ...$atoms) {
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$this->_anchorToPrevious = $anchorToPrevious;
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$this->_atoms = $atoms;
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$this->_parent = ($parent !== null) ? \WeakReference::create($parent) : null;
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}
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public function matches(Scope $scope): bool {
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foreach ($this->_atoms as $index => $atom) {
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if ($atom === '*') {
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continue;
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}
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if ($atom !== $scope->atoms[$index]) {
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return false;
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}
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}
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return true;
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}
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public function __get(string $name) {
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if ($name === 'parent') {
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return ($this->_parent !== null) ? $this->_parent->get() : null;
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}
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return parent::__get($name);
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}
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public function __toString(): string {
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$result = '';
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if ($this->_anchorToPrevious) {
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$result .= '< ';
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}
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$result .= implode('.', $this->_atoms);
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return $result;
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}
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}
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