try/catch 语法支持

bin/compiler.php

@@ -20,7 +20,7 @@ if (is_dir($path)) {
     $targetFile = basename($path);
 } else {
     $list = [$path];
-    $targetFile = basename($path, '.php');
+    $targetFile = FileScanner::getFileName($path);
 }
 
 $sourceFiles = [];
@@ -29,13 +29,15 @@ $objectFiles = [];
 // 分析 PHP 文件，生成 C++ 文件
 foreach ($list as $file) {
     try {
-        if (str_ends_with($file, '.php')) {
+        if (FileScanner::isPhpFile($file)) {
             $code = $translator->convert($file);
             $info = pathinfo($file);
             $cppFile = $info['dirname'] . '/' . $info['filename'] . '.cc';
             $translator->save($code, $cppFile);
-        } else {
+        } elseif (FileScanner::isCppFile($file)) {
             $cppFile = $file;
+        } else {
+            continue;
         }
         $sourceFiles[] = $cppFile;
     } catch (Unsupported $e) {

examples/nbody.php-3.php

@@ -61,7 +61,7 @@ function main()
             -9.51592254519715870E-05 * $days_per_year,
             5.15138902046611451E-05 * $solar_mass));
 
-// offset_momentum
+    // offset_momentum
     $px = $py = $pz = 0.0;
     foreach ($bodies as $e) {
         $px += $e[3] * $e[6];

examples/throw-in-php.php

@@ -0,0 +1,15 @@
+<?php
+function inverse($x) {
+    return number_format(1.0 / $x, 2);
+}
+
+function main() {
+    try {
+        echo inverse(5.0) . "\n";
+        echo inverse(0) . "\n";
+    } catch (DivisionByZeroError $e) {
+        echo 'Caught exception: ',  $e->getMessage(), "\n";
+    } finally {
+        echo "Finally\n";
+    }
+}

main.cc

@@ -10,8 +10,22 @@ extern php::Var argc;
 extern php::Var argv;
 extern void php_unset_all_global_vars();
 
+static void throw_exception(zend_object *ex) {
+    zend_bailout();
+}
+
 int main(int cpp_argc, char **cpp_argv) {
     php_embed_init(cpp_argc, cpp_argv);
+
+    zend_execute_data fake_execute_data;
+    memset(&fake_execute_data, 0, sizeof(zend_execute_data));
+    zend_function fake_func {};
+    fake_func.type = ZEND_INTERNAL_FUNCTION;
+    fake_execute_data.func = &fake_func;
+    EG(current_execute_data) = &fake_execute_data;
+
+    zend_throw_exception_hook = throw_exception;
+
     int rc = 0;
 #if PPROF_ON
     ProfilerStart("myapp.prof");

src/Php/FileScanner.php

@@ -7,20 +7,41 @@ use FilesystemIterator;
 class FileScanner
 {
     private string $directory;
-    private array $extensions;
     private array $excludePatterns;
 
-    public function __construct(string $directory, array $extensions = ['.php', '.cc', '.cpp', '.cxx', '.c', '.h', '.hpp'])
+    const array PHP_EXT = ['php'];
+    const array CPP_EXT = ['cpp', 'cxx', 'cc'];
+
+    public function __construct(string $directory)
     {
         if (!is_dir($directory)) {
             throw new \InvalidArgumentException("Directory does not exist: $directory");
         }
         
         $this->directory = rtrim($directory, DIRECTORY_SEPARATOR);
-        $this->extensions = $extensions;
         $this->excludePatterns = [];
     }
 
+    public static function getFileName(string $path): string
+    {
+        return pathinfo($path, PATHINFO_FILENAME);
+    }
+
+    public static function getFileExt(string $path): string
+    {
+        return pathinfo($path, PATHINFO_EXTENSION);
+    }
+
+    static function isPhpFile(string $file): bool
+    {
+        return in_array(self::getFileExt($file), self::PHP_EXT);
+    }
+
+    static function isCppFile(string $file): bool
+    {
+        return in_array(self::getFileExt($file), self::CPP_EXT);
+    }
+
     public function addExcludePattern(string $pattern): self
     {
         $this->excludePatterns[] = $pattern;
@@ -36,8 +57,7 @@ class FileScanner
         
         foreach ($iterator as $file) {
             if ($file->isFile()) {
-                $extension = '.' . $file->getExtension();
-                if (in_array($extension, $this->extensions)) {
+                if (self::isPhpFile($file)) {
                     $filePath = $file->getPathname();
                     $excluded = false;
                     foreach ($this->excludePatterns as $pattern) {

src/Php/Translator.php

@@ -537,6 +537,9 @@ class Translator extends \PhpAot\Core\Translator
                 case 'Stmt_Unset':
                     $result = $this->parseUnset($v);
                     break;
+                case 'Stmt_TryCatch':
+                    $result = $this->parseTryCatch($v);
+                    break;
                 default:
                     abort($v);
             }
@@ -671,6 +674,8 @@ class Translator extends \PhpAot\Core\Translator
                 return $this->parseNew($expr);
             case 'Expr_Clone':
                 return $this->parseClone($expr);
+            case 'Expr_Throw':
+                return $this->parseThrow($expr);
             case 'Name_FullyQualified':
                 return $expr->name;
             case 'Scalar_Int':
@@ -2245,4 +2250,68 @@ class Translator extends \PhpAot\Core\Translator
     {
         return $expr->getStartLine();
     }
+
+    private function parseThrow(mixed $expr): string
+    {
+        return 'php::throwException(' . $this->parseIdentifier($expr->expr). ')';
+    }
+
+    private function parseTryCatch(mixed $v): string
+    {
+        $code = 'zend_try {';
+        $stmts = $v->stmts;
+
+        $code .= PHP_EOL;
+        $this->indentLevel++;
+        $code .= $this->parseStmts($stmts);
+        $this->indentLevel--;
+        $code .= $this->getIndent() . '}' . PHP_EOL;
+
+        $catches = $v->catches;
+        $finally = $v->finally;
+
+        $exVar = $this->genTmpVarName();
+        $this->addLocalVar($exVar, self::TYPE_OBJECT);
+
+        $code .= 'zend_catch {' . PHP_EOL;
+        if ($catches) {
+            $code .= $this->getIndent() . $exVar . ' = php::catchException();' . PHP_EOL;
+            $this->indentLevel++;
+            foreach ($catches as $catch) {
+                $code .= $this->parseCatch($catch, $exVar);
+            }
+            $this->indentLevel--;
+        }
+        $code .= '}' . PHP_EOL . 'zend_end_try();' . PHP_EOL;
+        if ($finally) {
+            $code .= $this->parseStmts($finally->stmts);
+            $code .= PHP_EOL;
+            $code .= 'if (' . $exVar . ') {' . PHP_EOL . $this->getIndent() . 'php::throwException(' . $exVar . ');' . PHP_EOL . $this->getIndent() . '}';
+        }
+        return $code;
+    }
+
+    private function parseCatch(mixed $catch, string $exVar): string
+    {
+        $types = $catch->types;
+        $var = $this->parseIdentifier($catch->var);
+        if (!$this->hasVar($var)) {
+            $this->addLocalVar($var, self::TYPE_OBJECT);
+        }
+        $code = $this->getIndent() . $var . ' = ' . $exVar . ';' . PHP_EOL;
+
+        $code .= $this->getIndent() . 'if (';
+        foreach ($types as $type) {
+            $code .= 'php::instanceOf(' . $var . ', "' . $this->parseIdentifier($type) . '")';
+        }
+
+        $code .= ') {' . PHP_EOL;
+        $this->indentLevel++;
+        $code .= $this->parseStmts($catch->stmts);
+        $code .= $this->getIndent() . "$exVar.unset();" . PHP_EOL;
+        $this->indentLevel--;
+        $code .= $this->getIndent() . '}';
+
+        return $code;
+    }
 }

src/functions.php

@@ -13,9 +13,9 @@ function abort($v)
     $msg = 'Error: Unsupported ' . $lang . ' Syntax,';
     $msg .= ' Line: ' . $translator->getLine($v) . ', Type: ' . $translator->getType($v) . PHP_EOL;
     if ($translator->mode == 'cli') {
-//        if (DEBUG) {
-//            var_dump($v);
-//        }
+        if (DEBUG) {
+            var_dump($v);
+        }
     } else {
         header('Content-Type: application/json');
         echo json_encode($v, JSON_PRETTY_PRINT);

tests/aot/throw-in-php.phpt

@@ -0,0 +1,23 @@
+--TEST--
+try catch
+--FILE--
+<?php
+function inverse($x) {
+    return number_format(1.0 / $x, 2);
+}
+
+function main() {
+    try {
+        echo inverse(5.0) . "\n";
+        echo inverse(0) . "\n";
+    } catch (DivisionByZeroError $e) {
+        echo 'Caught exception: ',  $e->getMessage(), "\n";
+    } finally {
+        echo "Finally\n";
+    }
+}
+?>
+--EXPECT--
+0.20
+Caught exception: Division by zero
+Finally

tests/aot/try-catch.phpt

@@ -0,0 +1,28 @@
+--TEST--
+try catch
+--FILE--
+<?php
+function inverse($x) {
+    if (!$x) {
+        throw new Exception('Division by zero.');
+    }
+    return number_format(1.0 / $x, 2);
+}
+
+function main() {
+    try {
+        echo inverse(5.0) . "\n";
+        echo inverse(0) . "\n";
+    } catch (Exception $e) {
+        echo 'Caught exception: ',  $e->getMessage(), "\n";
+    } catch (RuntimeException $e) {
+        echo 'Caught runtime exception: ',  $e->getMessage(), "\n";
+    } finally {
+        echo "Finally\n";
+    }
+}
+?>
+--EXPECT--
+0.20
+Caught exception: Division by zero.
+Finally