Fix null passed in string parameter

Author: mnapoli

src/PhpDocReader/PhpDocReader.php

@@ -123,7 +123,7 @@ private function readPropertyType(ReflectionProperty $property, bool $allowPrimi
         }
 
         // Remove the leading \ (FQN shouldn't contain it)
-        $type = ltrim($type, '\\');
+        $type = is_string($type) ? ltrim($type, '\\') : null;
 
         return $type;
     }
@@ -216,7 +216,7 @@ private function readParameterClass(ReflectionParameter $parameter, bool $allowP
         }
 
         // Remove the leading \ (FQN shouldn't contain it)
-        $type = ltrim($type, '\\');
+        $type = is_string($type) ? ltrim($type, '\\') : null;
 
         return $type;
     }

tests/NonExistentClassTest.php

@@ -24,6 +24,14 @@ public function testProperties(): void
         $parser->getPropertyClass($class->getProperty('prop'));
     }
 
+    public function testPropertiesAndIgnoreErrors(): void
+    {
+        $parser = new PhpDocReader(true);
+        $class = new \ReflectionClass(Class1::class);
+
+        $this->assertNull($parser->getPropertyClass($class->getProperty('prop')));
+    }
+
     public function testMethodParameters(): void
     {
         $parser = new PhpDocReader;
@@ -34,4 +42,12 @@ public function testMethodParameters(): void
 
         $parser->getParameterClass($parameter);
     }
+
+    public function testMethodParametersAndIgnoreErrors(): void
+    {
+        $parser = new PhpDocReader(true);
+        $parameter = new ReflectionParameter([Class1::class, 'foo'], 'param');
+
+        $this->assertNull($parser->getParameterClass($parameter));
+    }
 }