Improve error message

Zend/zend_execute.c

@@ -3001,8 +3001,10 @@ int zend_recv_handler(ZEND_OPCODE_HANDLER_ARGS)
 	zend_uint arg_num = opline->op1.u.constant.value.lval;
 
 	if (zend_ptr_stack_get_arg(arg_num, (void **) &param TSRMLS_CC)==FAILURE) {
+		char *space;
+		char *class_name = get_active_class_name(&space TSRMLS_CC);
 		zend_verify_arg_type((zend_function *) EG(active_op_array), arg_num, NULL TSRMLS_CC);
-		zend_error(E_WARNING, "Missing argument %ld for %s()", opline->op1.u.constant.value.lval, get_active_function_name(TSRMLS_C));
+		zend_error(E_WARNING, "Missing argument %ld for %s%s%s()", opline->op1.u.constant.value.lval, class_name, space, get_active_function_name(TSRMLS_C));
 		if (opline->result.op_type == IS_VAR) {
 			PZVAL_UNLOCK(*EX_T(opline->result.u.var).var.ptr_ptr);
 		}

Zend/zend_execute.h

@@ -142,6 +142,7 @@ void execute_new_code(TSRMLS_D);
 
 
 /* services */
+ZEND_API char *get_active_class_name(char **space TSRMLS_DC);
 ZEND_API char *get_active_function_name(TSRMLS_D);
 ZEND_API char *zend_get_executed_filename(TSRMLS_D);
 ZEND_API uint zend_get_executed_lineno(TSRMLS_D);

Zend/zend_execute_API.c

@@ -297,6 +297,35 @@ void shutdown_executor(TSRMLS_D)
 }
 
 
+/* return class name and "::" or "". */
+ZEND_API char *get_active_class_name(char **space TSRMLS_DC)
+{
+	if (!zend_is_executing(TSRMLS_C)) {
+		if (space) {
+			*space = "";
+		}
+		return "";
+	}
+	switch (EG(function_state_ptr)->function->type) {
+		case ZEND_USER_FUNCTION:
+		case ZEND_INTERNAL_FUNCTION:
+		{
+			zend_class_entry *ce = EG(function_state_ptr)->function->common.scope;
+
+			if (space) {
+				*space = ce ? "::" : "";
+			}
+			return ce ? ce->name : "";
+		}
+		default:
+			if (space) {
+				*space = "";
+			}
+			return "";
+	}
+}
+
+
 ZEND_API char *get_active_function_name(TSRMLS_D)
 {
 	if (!zend_is_executing(TSRMLS_C)) {

main/main.c

@@ -424,34 +424,6 @@ static int php_during_module_shutdown()
 }
 /* }}} */
 
-/* {{{ get_active_class_name */
-static char *get_active_class_name(char **space TSRMLS_DC)
-{
-	if (!zend_is_executing(TSRMLS_C)) {
-		if (space) {
-			*space = "";
-		}
-		return "";
-	}
-	switch (EG(function_state_ptr)->function->type) {
-		case ZEND_USER_FUNCTION:
-		case ZEND_INTERNAL_FUNCTION:
-		{
-			zend_class_entry *ce = EG(function_state_ptr)->function->common.scope;
-
-			if (space) {
-				*space = ce ? "::" : "";
-			}
-			return ce ? ce->name : "";
-		}
-		default:
-			if (space) {
-				*space = "";
-			}
-			return "";
-	}
-}
-/* }}} */
 /* }}} */
 
 /* {{{ php_verror */