Upgrade framework

vendor/nette/utils/src/SmartObject.php

@@ -0,0 +1,140 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette;
+
+use Nette\Utils\ObjectHelpers;
+
+
+/**
+ * Strict class for better experience.
+ * - 'did you mean' hints
+ * - access to undeclared members throws exceptions
+ * - support for @property annotations
+ * - support for calling event handlers stored in $onEvent via onEvent()
+ */
+trait SmartObject
+{
+	/**
+	 * @throws MemberAccessException
+	 */
+	public function __call(string $name, array $args)
+	{
+		$class = static::class;
+
+		if (ObjectHelpers::hasProperty($class, $name) === 'event') { // calling event handlers
+			$handlers = $this->$name ?? null;
+			if (is_iterable($handlers)) {
+				foreach ($handlers as $handler) {
+					$handler(...$args);
+				}
+			} elseif ($handlers !== null) {
+				throw new UnexpectedValueException("Property $class::$$name must be iterable or null, " . gettype($handlers) . ' given.');
+			}
+		} else {
+			ObjectHelpers::strictCall($class, $name);
+		}
+	}
+
+
+	/**
+	 * @throws MemberAccessException
+	 */
+	public static function __callStatic(string $name, array $args)
+	{
+		ObjectHelpers::strictStaticCall(static::class, $name);
+	}
+
+
+	/**
+	 * @return mixed
+	 * @throws MemberAccessException if the property is not defined.
+	 */
+	public function &__get(string $name)
+	{
+		$class = static::class;
+
+		if ($prop = ObjectHelpers::getMagicProperties($class)[$name] ?? null) { // property getter
+			if (!($prop & 0b0001)) {
+				throw new MemberAccessException("Cannot read a write-only property $class::\$$name.");
+			}
+
+			$m = ($prop & 0b0010 ? 'get' : 'is') . ucfirst($name);
+			if ($prop & 0b10000) {
+				$trace = debug_backtrace(0, 1)[0]; // suppose this method is called from __call()
+				$loc = isset($trace['file'], $trace['line'])
+					? " in $trace[file] on line $trace[line]"
+					: '';
+				trigger_error("Property $class::\$$name is deprecated, use $class::$m() method$loc.", E_USER_DEPRECATED);
+			}
+
+			if ($prop & 0b0100) { // return by reference
+				return $this->$m();
+			} else {
+				$val = $this->$m();
+				return $val;
+			}
+		} else {
+			ObjectHelpers::strictGet($class, $name);
+		}
+	}
+
+
+	/**
+	 * @param  mixed  $value
+	 * @return void
+	 * @throws MemberAccessException if the property is not defined or is read-only
+	 */
+	public function __set(string $name, $value)
+	{
+		$class = static::class;
+
+		if (ObjectHelpers::hasProperty($class, $name)) { // unsetted property
+			$this->$name = $value;
+
+		} elseif ($prop = ObjectHelpers::getMagicProperties($class)[$name] ?? null) { // property setter
+			if (!($prop & 0b1000)) {
+				throw new MemberAccessException("Cannot write to a read-only property $class::\$$name.");
+			}
+
+			$m = 'set' . ucfirst($name);
+			if ($prop & 0b10000) {
+				$trace = debug_backtrace(0, 1)[0]; // suppose this method is called from __call()
+				$loc = isset($trace['file'], $trace['line'])
+					? " in $trace[file] on line $trace[line]"
+					: '';
+				trigger_error("Property $class::\$$name is deprecated, use $class::$m() method$loc.", E_USER_DEPRECATED);
+			}
+
+			$this->$m($value);
+
+		} else {
+			ObjectHelpers::strictSet($class, $name);
+		}
+	}
+
+
+	/**
+	 * @return void
+	 * @throws MemberAccessException
+	 */
+	public function __unset(string $name)
+	{
+		$class = static::class;
+		if (!ObjectHelpers::hasProperty($class, $name)) {
+			throw new MemberAccessException("Cannot unset the property $class::\$$name.");
+		}
+	}
+
+
+	public function __isset(string $name): bool
+	{
+		return isset(ObjectHelpers::getMagicProperties(static::class)[$name]);
+	}
+}