Catch type errors thrown in PHP versions above 8

Author: nbish11

src/Parser/ValueData.php

@@ -4,22 +4,28 @@
  * @copyright       2017 Tom Butler <tom@r.je> | https://r.je/                      *
  * @license         http://www.opensource.org/licenses/bsd-license.php  BSD License *
  * @version         1.2                                                             */
+
 namespace Transphporm\Parser;
+
 /** Holds the data used by `ValueParser` */
-class ValueData {
+class ValueData
+{
 	private $data;
 
-	public function __construct($data) {
+	public function __construct($data)
+	{
 		$this->data = $data;
 	}
 
 	//Read $key from array, $this->data = $this->data[$key] but also works for objects
-	private function traverseInto($key) {
+	private function traverseInto($key)
+	{
 		if (isset($this->data->{$key})) $this->data = $this->data->{$key};
 		else if ($this->isArray() && isset($this->data[$key])) $this->data = $this->data[$key];
 	}
 
-	public function traverse($key, $result) {
+	public function traverse($key, $result)
+	{
 		if ($key !== null) $this->traverseInto($key);
 		else {
 			//But if the key is null, replace the data structure with the result of the last function call
@@ -31,47 +37,59 @@ public function traverse($key, $result) {
 		}
 	}
 
-	private function isArray() {
+	private function isArray()
+	{
 		return is_array($this->data) || $this->data instanceof \ArrayAccess;
 	}
 
-	public function getData() {
+	public function getData()
+	{
 		return $this->data;
 	}
 
-	public function read($value) {
+	public function read($value)
+	{
 		if ($this->isArray()) {
 			if (isset($this->data[$value])) return $this->data[$value];
-		}
-		else if (isset($this->data->$value)) return $this->data->$value;
+		} else if (isset($this->data->$value)) return $this->data->$value;
 		else return null;
 	}
 
-	public function call($func, $args) {
+	public function call($func, $args)
+	{
 		return $this->data->$func(...$args);
 	}
 
-	public function methodExists($name) {
-		return method_exists($this->data, $name);
+	public function methodExists($name)
+	{
+		// PHP 8+ will throw a type error if not an object or string
+		try {
+			return method_exists($this->data, $name);
+		} catch (\TypeError $e) {
+			return false;
+		}
 	}
 
-	public function parseNested($parser, $token, $funcName) {
+	public function parseNested($parser, $token, $funcName)
+	{
 		$args = $parser->parseTokens($token['value'], $this->data);
 		if ($args[0] === $this->data) $args = [];
 		return $this->callFuncOnObject($this->data, $funcName, $args);
 	}
 
-	private function callFuncOnObject($obj, $func, $args) {
+	private function callFuncOnObject($obj, $func, $args)
+	{
 		if (isset($obj->$func) && is_callable($obj->$func)) return call_user_func_array($obj->$func, $args);
 		else if (is_callable([$obj, $func])) return call_user_func_array([$obj, $func], $args);
 		else return false;
 	}
 
-	public function extract($last, $autoLookup, $traversing) {
+	public function extract($last, $autoLookup, $traversing)
+	{
 		$value = $this->read($last);
-		if ($value !== null && ($autoLookup || $traversing) ) {
+		if ($value !== null && ($autoLookup || $traversing)) {
 			return $value;
 		}
 		throw new \UnexpectedValueException('Not found');
 	}
-}
+}