diff --git a/src/Php/CompilerBase.php b/src/Php/CompilerBase.php
index 8d469c32..102ef7d4 100644
--- a/src/Php/CompilerBase.php
+++ b/src/Php/CompilerBase.php
@@ -5344,16 +5344,8 @@ class CompilerBase extends \PhpAot\Core\Translator
         if (empty($expr->args)) {
             return 'php::toObject(' . $receiver . ')';
         }
-        $argClass = $expr->args[0]->value;
-        if ($this->isScalarString($argClass)) {
-            $className = $this->getNamespacedClassName($argClass->value);
-        } elseif ($this->isClassConstFetch($argClass)) {
-            if ($this->isNameExpr($argClass->class) and $this->isIdExpr($argClass->name) and $this->parseIdentifier($argClass->name) === 'class') {
-                $className = $this->getNamespacedClassName($this->parseIdentifier($argClass->class));
-            } else {
-                $this->fatalError($expr, 'The first parameter of toObject() only supports string literals or `ClassName::class` constant');
-            }
-        } else {
+        $className = $this->resolveClassNameArg($expr->args[0]->value);
+        if ($className === '') {
             $this->fatalError($expr, 'The first parameter of toObject() only supports string literals or `ClassName::class` constant');
         }
         return 'php::toObject(' . $receiver . ', ' . $this->getClassEntryPtr($className) . ', true)';
diff --git a/src/Php/UniversalMethodCall.php b/src/Php/UniversalMethodCall.php
index f713afb8..029aa3e7 100644
--- a/src/Php/UniversalMethodCall.php
+++ b/src/Php/UniversalMethodCall.php
@@ -702,28 +702,7 @@ trait UniversalMethodCall
      */
     protected function genUniversalPhpFn(string $receiver, string $phpFunc, array $args, int $receiverPos = 0, array $constArgs = []): string
     {
-        $argExprs = [];
-        $userArgs = [];
-        foreach ($args as $arg) {
-            $userArgs[] = $this->parseExpr($arg->value);
-        }
-
-        if ($receiverPos === 0) {
-            $argExprs = [$receiver];
-            foreach ($userArgs as $ua) {
-                $argExprs[] = $ua;
-            }
-        } else {
-            foreach ($userArgs as $i => $ua) {
-                if ($i === $receiverPos - 1) {
-                    $argExprs[] = $receiver;
-                }
-                $argExprs[] = $ua;
-            }
-            if ($receiverPos > count($userArgs)) {
-                $argExprs[] = $receiver;
-            }
-        }
+        $argExprs = $this->buildReceiverArgs($receiver, $args, $receiverPos);
 
         if ($constArgs) {
             $maxPos = max(array_keys($constArgs));
@@ -746,7 +725,12 @@ trait UniversalMethodCall
     // Same receiverPos semantics as genUniversalPhpFn.
     protected function genUniversalCppFn(string $receiver, string $cppFunc, array $args, int $receiverPos = 0): string
     {
-        $argExprs = [];
+        $argExprs = $this->buildReceiverArgs($receiver, $args, $receiverPos);
+        return $cppFunc . '(' . implode(', ', $argExprs) . ')';
+    }
+
+    private function buildReceiverArgs(string $receiver, array $args, int $receiverPos): array
+    {
         $userArgs = [];
         foreach ($args as $arg) {
             $userArgs[] = $this->parseExpr($arg->value);
@@ -758,6 +742,7 @@ trait UniversalMethodCall
                 $argExprs[] = $ua;
             }
         } else {
+            $argExprs = [];
             foreach ($userArgs as $i => $ua) {
                 if ($i === $receiverPos - 1) {
                     $argExprs[] = $receiver;
@@ -769,7 +754,7 @@ trait UniversalMethodCall
             }
         }
 
-        return $cppFunc . '(' . implode(', ', $argExprs) . ')';
+        return $argExprs;
     }
 
     protected function genUniversalPhpFnRef(string $receiver, string $phpFunc, array $args, string $returnType): string