otherobjects: reflow PyCode_NewEmpty, more comments

Author: sbinet

otherobjects.go

@@ -592,15 +592,19 @@ func PyCallIter_New(callable, sentinel *PyObject) *PyObject {
 	return togo(C.PyCallIter_New(topy(callable), topy(sentinel)))
 }
 
-// PyObject* PyCode_NewEmpty(char *filename, char *funcname, int firstlineno)
+// PyCodeObject* PyCode_NewEmpty(char *filename, char *funcname, int firstlineno)
 // Return value: New reference.
-// Return an empty CodePythonObject that corosponds to the file name, func name and line number in the source file it points to.
+// Return an empty CodePythonObject that corresponds to the file name, func name and line number in the source file it points to.
 func PyCode_NewEmpty(filename string, funcname string, firstlineno int) *PyObject {
 	c_filename := C.CString(filename)
-	c_funcname := C.CString(funcname)
 	defer C.free(unsafe.Pointer(c_filename))
+	c_funcname := C.CString(funcname)
 	defer C.free(unsafe.Pointer(c_funcname))
-	return togo((*C.PyObject)(unsafe.Pointer(C.PyCode_NewEmpty(c_filename, c_funcname, C.int(firstlineno)))))
+
+	o := C.PyCode_NewEmpty(c_filename, c_funcname, C.int(firstlineno))
+
+	// need to (unsafe-ly) cast to *C.PyObject as o is a *C.PyCodeObject
+	return togo((*C.PyObject)(unsafe.Pointer(o)))
 }
 
 // EOF