def edges(self) -> "SetView[E_co]":
"""Returns a :class:`SetView <vertizee.classes.collection_views.SetView>` of the component
edges."""
if self._edge_set:
return SetView(self._edge_set)
self._edge_set = set()
vertices = self._vertices.values()
for vertex in vertices:
for edge in vertex.incident_edges():
if edge.vertex1 in vertices and edge.vertex2 in vertices:
if edge not in self._edge_set:
self._edge_set.add(cast(E_co, edge))
return SetView(self._edge_set)
def test_set_view(self) -> None:
set1 = {10, 11, 12}
set_view = SetView(set1)
assert len(set_view) == 3
assert 10 in set_view
assert 13 not in set_view
assert set_view & {9, 10, 11} == {10, 11}
assert set_view | {12, 13, 14} == {10, 11, 12, 13, 14}
assert repr(set_view) == "SetView({10, 11, 12})"
assert str(set_view) == repr(set_view)
set_view2 = SetView._from_iterable(["a", "b", "c", "d", "d"])
assert len(set_view2) == 4
assert "d" in set_view2
assert isinstance(set_view2, SetView)
def incident_edges_outgoing(self) -> SetView[MultiDiEdge]:
return SetView(self._incident_edges.outgoing)
def incident_edges_incoming(self) -> SetView[MultiDiEdge]:
return SetView(self._incident_edges.incoming)
def adj_vertices_outgoing(self) -> SetView[MultiDiVertex]:
return SetView(self._incident_edges.adj_vertices_outgoing)
def incident_edges(self) -> SetView[MultiEdge]:
return SetView(self._incident_edges.incident_edges)
def adj_vertices(self) -> SetView[MultiVertex]:
return SetView(self._incident_edges.adj_vertices)
def adj_vertices_incoming(self) -> SetView[DiVertex]:
return SetView(self._incident_edges.adj_vertices_incoming)
def tree_edges(self) -> "SetView[E_co]":
"""Returns a :class:`SetView <vertizee.classes.collection_views.SetView>` of the tree
edges found during the graph search."""
return SetView(self._tree_edges)
def forward_edges(self) -> "SetView[E_co]":
"""Returns a :class:`SetView <vertizee.classes.collection_views.SetView>` of the forward
edges found during a graph search."""
return SetView(self._forward_edges)
def incident_edges_outgoing(self) -> SetView[PseudoEdge]:
return SetView(self._incident_edges.outgoing)
def incident_edges_incoming(self) -> SetView[PseudoEdge]:
return SetView(self._incident_edges.incoming)