fera_graph/props/
delegate.rs

1// This Source Code Form is subject to the terms of the Mozilla Public
2// License, v. 2.0. If a copy of the MPL was not distributed with this
3// file, You can obtain one at http://mozilla.org/MPL/2.0/.
4
5use prelude::*;
6
7use std::ops::{Index, IndexMut};
8
9/// A vertex property that delegates all operations to a wrapped property.
10pub struct DelegateVertexProp<G: WithVertexProp<T>, T>(DefaultVertexPropMut<G, T>);
11
12impl<G: WithVertexProp<T>, T> Index<Vertex<G>> for DelegateVertexProp<G, T> {
13    type Output = T;
14
15    #[inline]
16    fn index(&self, v: Vertex<G>) -> &Self::Output {
17        self.0.index(v)
18    }
19}
20
21impl<G: WithVertexProp<T>, T> IndexMut<Vertex<G>> for DelegateVertexProp<G, T> {
22    #[inline]
23    fn index_mut(&mut self, v: Vertex<G>) -> &mut Self::Output {
24        self.0.index_mut(v)
25    }
26}
27
28impl<G, D, T> VertexPropMutNew<G, T> for DelegateVertexProp<D, T>
29where
30    G: WithVertex<Vertex = Vertex<D>, OptionVertex = OptionVertex<D>> + AsRef<D>,
31    D: WithVertexProp<T>,
32{
33    fn new_vertex_prop(g: &G, value: T) -> Self
34    where
35        T: Clone,
36    {
37        DelegateVertexProp(g.as_ref().vertex_prop(value))
38    }
39}
40
41/// An edge property that delegates all operations to a wrapped property.
42pub struct DelegateEdgeProp<G: WithEdgeProp<T>, T>(DefaultEdgePropMut<G, T>);
43
44impl<G: WithEdgeProp<T>, T> Index<Edge<G>> for DelegateEdgeProp<G, T> {
45    type Output = T;
46
47    #[inline]
48    fn index(&self, v: Edge<G>) -> &Self::Output {
49        self.0.index(v)
50    }
51}
52
53impl<G: WithEdgeProp<T>, T> IndexMut<Edge<G>> for DelegateEdgeProp<G, T> {
54    #[inline]
55    fn index_mut(&mut self, v: Edge<G>) -> &mut Self::Output {
56        self.0.index_mut(v)
57    }
58}
59
60impl<G, D, T> EdgePropMutNew<G, T> for DelegateEdgeProp<D, T>
61where
62    G: WithEdge<Edge = Edge<D>, OptionEdge = OptionEdge<D>> + AsRef<D>,
63    D: WithEdgeProp<T>,
64{
65    fn new_edge_prop(g: &G, value: T) -> Self
66    where
67        T: Clone,
68    {
69        DelegateEdgeProp(g.as_ref().edge_prop(value))
70    }
71}
fera_graph/props/delegate.rs

fera_graph/props/
delegate.rs
