Add a setter in ClonableArray and ClonableList

sagemath · Apr 10, 2014 · 1052b86 · 1052b86
1 parent 37c8a8c
commit 1052b86
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diff --git a/src/sage/structure/list_clone.pxd b/src/sage/structure/list_clone.pxd
@@ -32,6 +32,7 @@ cdef class ClonableArray(ClonableElement):
 
     cpdef list _get_list(self)
     cpdef _set_list(self, list lst)
+    cpdef set_list(self, list lst)
     cpdef ClonableArray __copy__(self)
     cpdef check(self)
     cpdef object _getitem(self, int key)

diff --git a/src/sage/structure/list_clone.pyx b/src/sage/structure/list_clone.pyx
@@ -612,6 +612,34 @@ cdef class ClonableArray(ClonableElement):
         """
         self._list = lst
 
+    cpdef set_list(self, list lst):
+        """
+        Set the list embedded in ``self``.
+        The list given in parameter is copied.
+
+        EXAMPLES::
+
+            sage: from sage.structure.list_clone_demo import IncreasingArrays
+            sage: el = IncreasingArrays()([1,2,3])
+            sage: l = [1,4,5]
+            sage: with el.clone() as el1 :
+            ....:     el1.set_list( l )
+            sage: el1
+            [1, 4, 5]
+
+        TESTS::
+
+            sage: from sage.structure.list_clone_demo import IncreasingArrays
+            sage: el = IncreasingArrays()([1,2,3])
+            sage: l = [1,4,5]
+            sage: with el.clone() as el1 :
+            ....:     el1.set_list( l )
+            sage: el1._get_list() is l
+            False
+        """
+        self._require_mutable()
+        self._list = list(lst)
+
     def __len__(self):
         """
         Returns the len of ``self``