Add method interception and improve error handling

Added method interception capabilities including new interface and argument declarations for method interceptors. Also improved error handling by introducing detailed error messages and checking for memory allocation failures, ensuring robustness and easier debugging.

config.m4

@@ -1,57 +1,26 @@
-dnl $Id$
 dnl config.m4 for extension rayaop
 
-dnl Include PECL configuration macro
-dnl link https://github.com/php/pecl-tools/blob/master/autoconf/pecl.m4
-sinclude(./autoconf/pecl.m4)
+PHP_ARG_ENABLE(rayaop, whether to enable rayaop,
+[ --enable-rayaop   Enable rayaop])
 
-dnl Include macro for detecting PHP executable
-dnl link https://github.com/php/pecl-tools/blob/master/autoconf/php-executable.m4
-sinclude(./autoconf/php-executable.m4)
-
-dnl Initialize PECL extension
-dnl link https://github.com/php/pecl-tools/blob/master/pecl.m4#L229
-PECL_INIT([rayaop])
-
-dnl Add configuration option to enable the extension
-dnl link https://www.gnu.org/software/autoconf/manual/autoconf-2.68/html_node/External-Shell-Variables.html
-PHP_ARG_ENABLE(rayaop, whether to enable rayaop, [ --enable-rayaop   Enable rayaop])
-
-dnl Process if the extension is enabled
 if test "$PHP_RAYAOP" != "no"; then
   dnl Define whether the extension is enabled
-  dnl link https://www.gnu.org/software/autoconf/manual/autoconf-2.68/html_node/Defining-Variables.html
   AC_DEFINE(HAVE_RAYAOP, 1, [whether rayaop is enabled])
 
   dnl Add new PHP extension
-  dnl link https://www.phpinternalsbook.com/build_system/build_system.html
   PHP_NEW_EXTENSION(rayaop, rayaop.c, $ext_shared)
 
   dnl Add Makefile fragment
-  dnl link https://www.phpinternalsbook.com/build_system/build_system.html#php-add-makefile-fragment
   PHP_ADD_MAKEFILE_FRAGMENT
 
   dnl Add instruction to install header files
-  dnl link https://www.phpinternalsbook.com/build_system/build_system.html#php-install-headers
   PHP_INSTALL_HEADERS([ext/rayaop], [php_rayaop.h])
 
+  dnl Add quiet mode option
   PHP_ARG_ENABLE(rayaop-quiet, whether to suppress experimental notices,
-  [ --enable-rayaop-quiet   Suppress experimental notices], no, yes)
+    [ --enable-rayaop-quiet   Suppress experimental notices], no, yes)
 
   if test "$PHP_RAYAOP_QUIET" != "no"; then
-      AC_DEFINE(RAYAOP_QUIET, 1, [Whether to suppress experimental notices])
+    AC_DEFINE(RAYAOP_QUIET, 1, [Whether to suppress experimental notices])
   fi
-
-  dnl Add AddressSanitizer flags
-  dnl Add the AddressSanitizer runtime library path
-  PHP_ADD_LIBRARY_WITH_PATH([clang_rt.asan_osx_dynamic], [/opt/homebrew/opt/llvm/lib/clang/14.0.0/lib/darwin], [RAYAOP_SHARED_LIBADD])
-  AC_DEFINE(HAVE_ASAN, 1, [Define if you have AddressSanitizer])
-
-  dnl Add compiler and linker flags
-  CFLAGS="-g -O0 -fsanitize=address $CFLAGS"
-  LDFLAGS="-fsanitize=address $LDFLAGS"
-
-  dnl Add include and library paths
-  PHP_ADD_INCLUDE([/opt/homebrew/opt/llvm/include])
-  PHP_ADD_LIBPATH([/opt/homebrew/opt/llvm/lib])
-fi
+fi

php_rayaop.h

@@ -25,7 +25,8 @@
 #include "TSRM.h"
 #endif
 
-/* Version and namespace definitions */
+/* Constants */
+#define MAX_EXECUTION_DEPTH 100
 #define PHP_RAYAOP_VERSION "1.0.0"
 #define RAYAOP_NS "Ray\\Aop\\"
 
@@ -35,6 +36,20 @@
 #define RAYAOP_E_INVALID_HANDLER  3
 #define RAYAOP_E_MAX_DEPTH_EXCEEDED 4
 
+/* Argument information declarations */
+ZEND_BEGIN_ARG_INFO_EX(arginfo_method_intercept, 0, 0, 3)
+    ZEND_ARG_TYPE_INFO(0, class_name, IS_STRING, 0)
+    ZEND_ARG_TYPE_INFO(0, method_name, IS_STRING, 0)
+    ZEND_ARG_OBJ_INFO(0, interceptor, Ray\\Aop\\MethodInterceptorInterface, 0)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_INFO(arginfo_method_intercept_init, 0)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_enable_method_intercept, 0, 1, IS_VOID, 0)
+    ZEND_ARG_TYPE_INFO(0, enable, _IS_BOOL, 0)
+ZEND_END_ARG_INFO()
+
 /* Debug mode configuration */
 #ifdef RAYAOP_DEBUG
 #define PHP_RAYAOP_DEBUG_PRINT(fmt, ...) \
@@ -58,6 +73,9 @@
 extern zend_module_entry rayaop_module_entry;
 #define phpext_rayaop_ptr &rayaop_module_entry
 
+/* Interface class entry */
+extern zend_class_entry *ray_aop_method_interceptor_interface_ce;
+
 /* Windows DLL export */
 #ifdef PHP_WIN32
 #define PHP_RAYAOP_API __declspec(dllexport)