work in progress

Author: MatthieuDien

src/sage/misc/lazy_list.pxd

@@ -1,12 +1,21 @@
 from cpython.object cimport *
 
 cdef class lazy_list(object):
-    cdef object iterator
     cdef list cache
     cdef Py_ssize_t start, stop, step
 
+    cdef int update_cache_up_to(self, Py_ssize_t i) except *
+
+cdef class lazy_list_from_iterator(lazy_list):
+    cdef object iterator
+
     cdef int update_cache_up_to(self, Py_ssize_t i) except -1
 
+cdef class lazy_list_from_fun(lazy_list):
+    cdef object fun
+
+    cdef int update_cache_up_to(self, Py_ssize_t i) except -1
+    
 cdef class lazy_list_iterator(object):
     cdef lazy_list l
     cdef Py_ssize_t pos, step