feat(php): 添加命名空间支持和类继承功能

- 在 ClassDef 中添加 namespace、implements 和 extends 属性
- 实现 getNamespacedName 方法用于获取带命名空间的类名
- 在 CompilerBase 中添加 classes 属性存储类定义
- 修复函数名解析时的大小写转换问题
- 添加对 __CLASS__ 魔术常量的支持
- 移除废弃的 stub 文件常量初始化函数
- 更新命名空间定义的解析逻辑
- 在 Translator 中实现完整的命名空间解析功能
- 添加类继承关系的支持和注册机制
- 实现在全局变量生成中包含类定义入口
- 添加标识符列表解析辅助方法
- 更新示例文件以测试继承功能

examples/class/main.php

@@ -1,5 +1,7 @@
 <?php
 
+const VERSION = '1.0.1';
+
 function main()
 {
     var_dump("hello");

examples/class/test.php

@@ -26,3 +26,11 @@ class Test
     }
 }
 
+class Test2 extends  Test{
+    function fun(string $name)
+    {
+        var_dump(__CLASS__);
+        var_dump($name);
+    }
+}
+

src/Php/ClassDef.php

@@ -17,4 +17,15 @@ class ClassDef
      * @var array<ConstantDef>
      */
     public array $constants = [];
+    public string $namespace = '';
+    public array $implements = [];
+    public string $extends = '';
+
+    public function getNamespacedName(): string
+    {
+        if ($this->namespace === '') {
+            return $this->name;
+        }
+        return str_replace('\\', '_', $this->namespace . '_' . $this->name);
+    }
 }

src/Php/CompilerBase.php

@@ -85,6 +85,10 @@ class CompilerBase extends \PhpAot\Core\Translator
     protected array $useNamespaces = [];
     protected array $useFunctions = [];
     protected string $class = '';
+    /**
+     * @var array<ClassDef>
+     */
+    protected array $classes = [];
     protected FunctionDef $functionDef;
     protected ClassDef $classDef;
     protected array $globalVars = [
@@ -197,8 +201,6 @@ class CompilerBase extends \PhpAot\Core\Translator
     {
         $this->indentLevel = 0;
         $this->strictTypes = false;
-        $this->stubFileIncluded = false;
-        $this->localHeaders = [];
     }
 
     protected function resetNamespace(): void
@@ -210,7 +212,7 @@ class CompilerBase extends \PhpAot\Core\Translator
 
     protected function getFunctionName(Node $v): string
     {
-        $names[] = strtolower($this->parseIdentifier($v->name));
+        $names[] = $this->escapeFunction($this->parseIdentifier($v->name));
         if ($this->namespace) {
             $names[] = $this->escapeNamespace($this->namespace);
         }
@@ -602,6 +604,7 @@ class CompilerBase extends \PhpAot\Core\Translator
             case 'Scalar_MagicConst_Dir':
             case 'Scalar_MagicConst_Line':
             case 'Scalar_MagicConst_Function':
+            case 'Scalar_MagicConst_Class':
                 return $this->parseMagicConst($expr);
             case 'Scalar_InterpolatedString':
                 return $this->parseInterpolatedString($expr);
@@ -1254,9 +1257,9 @@ class CompilerBase extends \PhpAot\Core\Translator
      */
     protected function findNativeFunction(string $fname): string|false
     {
-        $possibleFunctionNames = [strtolower($fname),];
+        $possibleFunctionNames = [$this->escapeFunction($fname),];
         if ($this->namespace) {
-            $possibleFunctionNames[] = $this->namespace . self::NAMESPACE_SEPARATOR . $fname;
+            $possibleFunctionNames[] = $this->escapeNamespace($this->namespace) . self::NAMESPACE_SEPARATOR . $fname;
         }
         if (isset($this->useFunctions[$fname])) {
             $possibleFunctionNames[] = $this->escapeNamespace($this->useFunctions[$fname]) . self::NAMESPACE_SEPARATOR . $fname;
@@ -1676,52 +1679,6 @@ class CompilerBase extends \PhpAot\Core\Translator
         return $var . '.instanceOf(' . $this->identifierToStr($expr->class) . ')';
     }
 
-    protected function parseNamespaceDef(Node $node): string
-    {
-        $ns = $this->parseIdentifier($node->name);
-        $code = '';
-
-        $this->resetNamespace();
-
-        if ($this->useCppNamespace) {
-            $ns = explode('\\', $ns);
-            $ns = array_filter($ns, function ($v) {
-                return $v !== '';
-            });
-            foreach ($ns as $name) {
-                $code .= 'namespace ' . $name . ' {' . PHP_EOL;
-            }
-            $ns_end = str_repeat('}', count($ns));
-            $this->namespace = implode('::', $ns);
-        } else {
-            $this->namespace = $this->escapeNamespace($node->name->toString());
-            $ns_end = '';
-        }
-
-        foreach ($node->stmts as $v2) {
-            $type2 = $v2->getType();
-            switch ($type2) {
-                case 'Stmt_Class':
-                    $code .= $this->parseClass($v2);
-                    break;
-                case 'Stmt_Const':
-                    $this->parseConstDef($v2) . PHP_EOL;
-                    break;
-                case 'Stmt_Function':
-                    $code .= $this->parseFunction($v2) . PHP_EOL;
-                    break;
-                case 'Stmt_Use':
-                    $code .= $this->parseUse($v2) . PHP_EOL;
-                    break;
-                default:
-                    abort($v2);
-            }
-        }
-        $code .= $ns_end;
-        $this->resetNamespace();
-        return $code;
-    }
-
     protected function parseCastInt(Node $node): string
     {
         return $this->convertIntExpr($this->parseExpr($node->expr));
@@ -1817,6 +1774,11 @@ class CompilerBase extends \PhpAot\Core\Translator
         return str_replace('\\', self::NAMESPACE_SEPARATOR, strtolower($ns));
     }
 
+    protected function escapeFunction(string $fname): string
+    {
+        return strtolower($fname);
+    }
+
     protected function escapeClass(string $class): string
     {
         return $class;
@@ -1932,6 +1894,8 @@ class CompilerBase extends \PhpAot\Core\Translator
                 return (string)$expr->getStartLine();
             case 'Scalar_MagicConst_Function':
                 return '"' . $this->escapeString($this->functionDef->name) . '"';
+            case 'Scalar_MagicConst_Class':
+                return '"' . $this->escapeString($this->classDef->name) . '"';
             default:
                 abort($expr);
         }

src/Php/Preprocessor.php

@@ -26,6 +26,29 @@ class Preprocessor extends CompilerBase
         $list = $sortedFiles;
     }
 
+    protected function prepareNamespaceDef(Node\Stmt\Namespace_ $node): void
+    {
+        $this->resetNamespace();
+        $this->namespace = $this->parseIdentifier($node->name);
+        foreach ($node->stmts as $v2) {
+            $type2 = $v2->getType();
+            switch ($type2) {
+                case 'Stmt_Class':
+                    $this->prepareClass($v2);
+                    break;
+                case 'Stmt_Function':
+                    $this->prepareFunction($v2) . PHP_EOL;
+                    break;
+                case 'Stmt_Use':
+                case 'Stmt_Const':
+                    break;
+                default:
+                    abort($v2);
+            }
+        }
+        $this->resetNamespace();
+    }
+
     public function prepare(string $file): void
     {
         $phpCode = $this->loadFile($file);
@@ -84,28 +107,6 @@ class Preprocessor extends CompilerBase
         }
     }
 
-    protected function prepareNamespaceDef(Node\Stmt\Namespace_ $node): void
-    {
-        $this->resetNamespace();
-        $this->namespace = $this->escapeNamespace($this->parseIdentifier($node->name));
-        foreach ($node->stmts as $v2) {
-            $type2 = $v2->getType();
-            switch ($type2) {
-                case 'Stmt_Class':
-                    $this->prepareClass($v2);
-                    break;
-                case 'Stmt_Function':
-                    $this->prepareFunction($v2) . PHP_EOL;
-                    break;
-                case 'Stmt_Use':
-                case 'Stmt_Const':
-                    break;
-                default:
-                    abort($v2);
-            }
-        }
-        $this->resetNamespace();
-    }
 
     protected function prepareClass(Node\Stmt\Class_ $class): string
     {

src/Php/Translator.php

@@ -91,6 +91,8 @@ class Translator extends Preprocessor
     public function convert(string $file): string
     {
         $phpCode = $this->loadFile($file);
+        $this->stubFileIncluded = false;
+        $this->localHeaders = [];
         while (true) {
             try {
                 $cppCode = $this->doConvert($phpCode);
@@ -125,7 +127,7 @@ class Translator extends Preprocessor
                     $this->parseDeclare($v);
                     break;
                 case 'Stmt_Namespace':
-                    $cppCode .= $this->parseNamespaceDef($v);
+                    $cppCode .= $this->parseNamespace($v);
                     break;
                 case 'Stmt_Class':
                     $cppCode .= $this->parseClass($v);
@@ -187,18 +189,34 @@ class Translator extends Preprocessor
 
     public function genGlobalVars(string $file): void
     {
+        $this->localHeaders = [];
         $code = $this->genIncludeHeaderFiles();
         $lines = [];
         // 全局变量只能是 var 类型
         foreach ($this->globalVars as $name => $type) {
             $lines[] = self::TYPE_VAR . ' ' . $name . ';';
         }
+        // 类定义
+        $lines[] = $this->getIndent() . '// class entries';
+        foreach ($this->classes as $classDef) {
+            $lines[] = $this->getIndent() . 'zend_class_entry *' . self::PREFIX . 'class_entry_' . $classDef->getNamespacedName() . ';';
+        }
+        foreach ($this->classes as $classDef) {
+            $name = $classDef->getNamespacedName();
+            if ($classDef->extends) {
+                $parentName = 'zend_class_entry *parent_ce';
+            } else {
+                $parentName = '';
+            }
+            $lines[] = 'extern zend_class_entry *' . self::PREFIX . 'register_class_' . $name . '(' . $parentName . ');';
+        }
         $code .= implode(PHP_EOL, $lines) . PHP_EOL;
 
         $code .= PHP_EOL;
         $literalStringsCount = count($this->literalStrings);
         $code .= 'php::Var ' . self::LITERAL_STRINGS . '[' . $literalStringsCount . '] = {' . PHP_EOL;
         $this->indentLevel++;
+        $code .= $this->getIndent() . '// literal strings' . PHP_EOL;
         foreach ($this->literalStrings as $str => $index) {
             $code .= $this->getIndent() . 'php::String{ZEND_STRL("' . $this->escapeString($str) . '"), true},' . PHP_EOL;
         }
@@ -215,21 +233,25 @@ class Translator extends Preprocessor
         $code .= PHP_EOL;
         $this->indentLevel++;
         $lines = [];
+        $lines[] = $this->getIndent() . '// constants';
         foreach ($this->nativeConstants as $name => $constant) {
             $lines[] = $this->getIndent() . $name . ' = ' . $constant->value . ';';
-            // 注册到 PHP
             $lines[] = $this->getIndent() . 'php::define("' . $name . '", ' . $name . ');';
         }
-        $this->indentLevel--;
+        $lines[] = $this->getIndent() . '// global vars';
-        $code .= $this->genFunction(self::PREFIX . 'init_constant_vars', 'void', [], $lines);
-
-        // 生成全局变量
-        $code .= PHP_EOL;
-        $this->indentLevel++;
-        $lines = [];
         foreach ($this->globalVars as $name => $type) {
             $lines[] = $this->getIndent() . $name . ' = php::global("' . $name . '");';
         }
+        $lines[] = $this->getIndent() . '// class entries';
+        foreach ($this->classes as $classDef) {
+            $name = $classDef->getNamespacedName();
+            if ($classDef->extends) {
+                $parentName = self::PREFIX . 'class_entry_' . $classDef->extends;
+            } else {
+                $parentName = '';
+            }
+            $lines[] = $this->getIndent() . self::PREFIX . 'class_entry_' . $name . ' = ' . self::PREFIX . 'register_class_' . $name . '(' . $parentName . ');';
+        }
         $this->indentLevel--;
         $code .= $this->genFunction(self::PREFIX . 'init_global_vars', 'void', [], $lines);
 
@@ -309,17 +331,77 @@ class Translator extends Preprocessor
         return strtolower($this->parseIdentifier($v->name));
     }
 
+    protected function parseNamespace(Node\Stmt\Namespace_ $node): string
+    {
+        $ns = $this->parseIdentifier($node->name);
+        $code = '';
+
+        $this->resetNamespace();
+
+        if ($this->useCppNamespace) {
+            $ns = explode('\\', $ns);
+            $ns = array_filter($ns, function ($v) {
+                return $v !== '';
+            });
+            foreach ($ns as $name) {
+                $code .= 'namespace ' . $name . ' {' . PHP_EOL;
+            }
+            $ns_end = str_repeat('}', count($ns));
+            $this->namespace = implode('::', $ns);
+        } else {
+            $this->namespace = $ns;
+            $ns_end = '';
+        }
+
+        foreach ($node->stmts as $v2) {
+            $type2 = $v2->getType();
+            switch ($type2) {
+                case 'Stmt_Class':
+                    $code .= $this->parseClass($v2);
+                    break;
+                case 'Stmt_Const':
+                    $this->parseConstDef($v2) . PHP_EOL;
+                    break;
+                case 'Stmt_Function':
+                    $code .= $this->parseFunction($v2) . PHP_EOL;
+                    break;
+                case 'Stmt_Use':
+                    $code .= $this->parseUse($v2) . PHP_EOL;
+                    break;
+                default:
+                    abort($v2);
+            }
+        }
+        $code .= $ns_end;
+        $this->resetNamespace();
+        return $code;
+    }
+
     protected function parseClass(Node\Stmt\Class_ $class): string
     {
         $this->class = $this->parseIdentifier($class->name);
         if (!$this->stubFileIncluded) {
-            shell_exec('php ' . $this->rootPath . '/bin/gen_stub.php -f' . $this->file);
+            $genStubCmd = PHP_BINARY. ' ' . $this->rootPath . '/bin/gen_stub.php -f ' . $this->file;
+            shell_exec($genStubCmd);
+            $this->climate->comment($genStubCmd);
             $stubFilenameWithoutExtension = str_replace([".stub.php", '.php'], "", $this->file);
-            $this->localHeaders[] = $this->getArgInfoHeaderFile($stubFilenameWithoutExtension, true);
+            $headerFile = $this->getArgInfoHeaderFile($stubFilenameWithoutExtension, true);
+            $this->localHeaders[] = $headerFile;
             $this->stubFileIncluded = true;
         }
-        $this->classDef = new ClassDef();
+
-        $this->classDef->name = $this->class;
+        if (!isset($this->classes[$this->class])) {
+            $this->classDef = new ClassDef();
+            $this->classDef->name = $this->class;
+            if ($class->extends) {
+                $this->classDef->extends = $this->parseIdentifier($class->extends);
+            }
+            $this->classDef->implements = $this->parseIdentifierList($class->implements);
+            $this->classDef->namespace = $this->namespace;
+
+            $this->classes[$this->class] = $this->classDef;
+        }
+
         $methodCodes = [];
 
         foreach ($class->stmts as $v) {
@@ -535,7 +617,16 @@ class Translator extends Preprocessor
         $name = $this->getMethodName($v);
         $flags = $v->flags;
         $methodDef = new MethodDef($name, $flags);
-        $this->classDef->methods[] = $methodDef;
+        $this->classDef->methods[$name] = $methodDef;
         $methodCodes[$name] = $this->parseFunction($v);
     }
+
+    private function parseIdentifierList(array $implements): array
+    {
+        $list = [];
+        foreach ($implements as $implement) {
+            $list[] = $this->parseIdentifier($implement);
+        }
+        return $list;
+    }
 }

src/cpp/main.cc

@@ -12,7 +12,6 @@ void php_main();
 extern php::Var argc;
 extern php::Var argv;
 
-extern void php_init_constant_vars();
 extern void php_init_global_vars();
 extern void php_unset_global_vars();
 
@@ -40,7 +39,6 @@ int main(int cpp_argc, char **cpp_argv) {
 #endif
     zend_first_try {
         php_init_global_vars();
-        php_init_constant_vars();
         php::eval("main();");
     }
     zend_catch {