diff --git a/.gitignore b/.gitignore
index 5e9baa6c..ace7fe76 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,5 +8,8 @@
 /tmp
 /projects/wordpress
 /projects/workerman
+/projects/thinkphp
+/projects/laravel
+/projects/tmp
 /.php-cs-fixer.cache
 *.o
\ No newline at end of file
diff --git a/bin/compiler.php b/bin/compiler.php
index 2554a9d3..e9faa681 100755
--- a/bin/compiler.php
+++ b/bin/compiler.php
@@ -25,10 +25,10 @@ foreach ($list as $k => $file) {
         try {
             $translator->prepare($file);
         } catch (Unsupported $e) {
-            echo " unsupported syntax: " . $e->getMessage() . "\n";
-            echo " skip: " . $file . "\n";
+            $translator->output(" unsupported syntax: " . $e->getMessage() . "\n" . " skip: " . $file . "\n", 'error');
             unset($list[$k]);
         } catch (SyntaxError $e) {
+            $translator->output(" syntax error: " . $e->getMessage() . "\n" . " skip: " . $file . "\n", 'error');
             unset($list[$k]);
         }
     }
diff --git a/src/Php/CompilerBase.php b/src/Php/CompilerBase.php
index 4592cdd1..6a34b1c6 100644
--- a/src/Php/CompilerBase.php
+++ b/src/Php/CompilerBase.php
@@ -627,6 +627,11 @@ class CompilerBase extends \PhpAot\Core\Translator
         return $this->escapeName($prefix . $name);
     }
 
+    protected function getFullClassName(): string
+    {
+        return ltrim($this->namespace . '\\' . $this->class, '\\');
+    }
+
     protected function getNamespacedClassName(string $class): string
     {
         if ($class === '') {
diff --git a/src/Php/Preprocessor.php b/src/Php/Preprocessor.php
index 0d22c178..d3dfd0cd 100644
--- a/src/Php/Preprocessor.php
+++ b/src/Php/Preprocessor.php
@@ -10,6 +10,7 @@ namespace PhpAot\Php;
 
 use MJS\TopSort\Implementations\StringSort;
 use PhpAot\Php\Exception\SyntaxError;
+use PhpAot\Php\Exception\Unsupported;
 use PhpParser\Modifiers;
 use PhpParser\Node;
 use PhpParser\NodeAbstract;
@@ -165,7 +166,7 @@ class Preprocessor extends CompilerBase
                     $this->foundStrayCode($v2);
                     // no break
                 default:
-                    abort($v2);
+                    throw new Unsupported('Unsupported statement: ' . $type2);
             }
         }
         $this->resetNamespace();
@@ -199,6 +200,9 @@ class Preprocessor extends CompilerBase
         if (!empty($class->extends)) {
             $this->parentClass = $this->getParentClass($class->extends);
             $parentClassLower = strtolower($this->parentClass);
+            if ($parentClassLower === $fullClassNameLower) {
+                $this->fatalError($class, "Class {$fullClassName} cannot extend itself");
+            }
             $this->classExtends[$fullClassNameLower] = $parentClassLower;
             if (!$this->isInternalClass($parentClassLower)) {
                 $this->symbolCallInFile[$this->file][] = $parentClassLower;
@@ -239,11 +243,12 @@ class Preprocessor extends CompilerBase
             $this->prepareFunction($v) . PHP_EOL;
         }
 
-        $fullClassName = $this->getNamespacedClassName($this->class);
+        $fullClassName = $this->getFullClassName();
         $fullMethodName = $fullClassName . '::' . $v->name;
         $this->classMethodOverride[strtolower($fullMethodName)] = false;
         // 查找父类是否有同名方法，递归查找
         $fullClassNameLower = strtolower($fullClassName);
+
         while (isset($this->classExtends[$fullClassNameLower])) {
             $parentClass = $this->classExtends[$fullClassNameLower];
             $parentMethodLower = strtolower($parentClass . '::' . $v->name);
diff --git a/src/Php/Translator.php b/src/Php/Translator.php
index cdbb7ffb..62ba54ab 100644
--- a/src/Php/Translator.php
+++ b/src/Php/Translator.php
@@ -404,6 +404,11 @@ class Translator extends Preprocessor
         return $objectFiles;
     }
 
+    public function output(string $message, string $style = 'out'): void
+    {
+        $this->climate->{$style}($message);
+    }
+
     public function build(array $objectFiles): void
     {
         $objectList = implode(' ', $objectFiles);
@@ -865,7 +870,7 @@ class Translator extends Preprocessor
             $extends = $class->extends;
         }
 
-        $fullName = ltrim($this->namespace . '\\' . $this->class, '\\');
+        $fullName = $this->getFullClassName();
         if ($this->hasNativeClass($fullName)) {
             $this->classDef = $this->getClassDef($fullName);
         } else {