more function-based methods

Author: brettmc

phper-sys/php_wrapper.c

@@ -198,6 +198,10 @@ void phper_zval_str(zval *zv, zend_string *s) {
     ZVAL_STR(zv, s);
 }
 
+void phper_zval_undef(zval *zv) {
+    ZVAL_UNDEF(zv);
+}
+
 void phper_convert_to_long(zval *op) {
     convert_to_long(op);
 }
@@ -451,11 +455,39 @@ uint32_t phper_zend_num_args(const zend_execute_data *execute_data) {
     return ZEND_NUM_ARGS();
 }
 
+uint32_t phper_zend_call_num_args(const zend_execute_data *execute_data) {
+    return ZEND_CALL_NUM_ARGS(execute_data);
+}
+
+void phper_zend_set_call_num_args(zend_execute_data *execute_data, uint32_t num) {
+    ZEND_CALL_NUM_ARGS(execute_data) = num;
+}
+
+uint32_t phper_zend_call_info(zend_execute_data *execute_data) {
+    return ZEND_CALL_INFO(execute_data);
+}
+
+void phper_zend_add_call_flag(zend_execute_data *execute_data, uint32_t flag) {
+    ZEND_ADD_CALL_FLAG(execute_data, flag);
+}
+
+uint32_t phper_zend_call_may_have_undef() {
+    return ZEND_CALL_MAY_HAVE_UNDEF;
+}
+
 bool phper_zend_get_parameters_array_ex(uint32_t param_count,
                                         zval *argument_array) {
     return zend_get_parameters_array_ex(param_count, argument_array) != 0;
 }
 
+int phper_zend_result_success() {
+    return SUCCESS;
+}
+
+int phper_zend_result_failure() {
+    return FAILURE;
+}
+
 // ==================================================
 // memory apis:
 // ==================================================

phper/src/values.rs

@@ -179,21 +179,14 @@ impl ExecuteData {
     /// Gets associated `$this` object if exists.
     pub fn get_this(&mut self) -> Option<&ZObj> {
         unsafe {
-            let val = ZVal::from_ptr(phper_get_this(&mut self.inner));
-            val.as_z_obj()
+            ZVal::try_from_ptr(phper_get_this(&mut self.inner))?.as_z_obj()
         }
     }
 
     /// Gets associated mutable `$this` object if exists.
     pub fn get_this_mut(&mut self) -> Option<&mut ZObj> {
         unsafe {
-            let ptr = phper_get_this(&mut self.inner);
-            if ptr.is_null() {
-                None
-            } else {
-                let val = ZVal::from_mut_ptr(ptr);
-                val.as_mut_z_obj()
-            }
+            ZVal::try_from_mut_ptr(phper_get_this(&mut self.inner))?.as_mut_z_obj()
         }
     }
 
@@ -209,7 +202,7 @@ impl ExecuteData {
         }
     }
 
-    pub unsafe fn get_parameters_array(&mut self) -> Vec<ManuallyDrop<ZVal>> {
+    pub(crate) unsafe fn get_parameters_array(&mut self) -> Vec<ManuallyDrop<ZVal>> {
         unsafe {
             let num_args = self.num_args();
             let mut arguments = vec![zeroed::<zval>(); num_args];