swh_graph/views/contiguous_subgraph/
timestamps.rs

1// Copyright (C) 2025  The Software Heritage developers
2// See the AUTHORS file at the top-level directory of this distribution
3// License: GNU General Public License version 3, or any later version
4// See top-level LICENSE file for more information
5
6//! Implementation of [`properties::Timestamps`] for [`ContiguousSubgraph`]
7
8use super::*;
9use properties::{
10    NoTimestamps, OptTimestamps, PropertiesBackend, PropertiesResult, SwhGraphProperties,
11};
12
13impl<
14        G: SwhGraphWithProperties<Timestamps: OptTimestamps>,
15        N: ContractionBackend,
16        MAPS: properties::MaybeMaps,
17        PERSONS: properties::MaybePersons,
18        CONTENTS: properties::MaybeContents,
19        STRINGS: properties::MaybeStrings,
20        LABELNAMES: properties::MaybeLabelNames,
21    > ContiguousSubgraph<G, N, MAPS, NoTimestamps, PERSONS, CONTENTS, STRINGS, LABELNAMES>
22{
23    /// Makes [`OptTimestamps`] available on this [`ContiguousSubgraph`].
24    ///
25    /// Requires the underlying graph to implement [`OptTimestamps`].
26    pub fn with_timestamps(
27        self,
28    ) -> ContiguousSubgraph<
29        G,
30        N,
31        MAPS,
32        ContiguousSubgraphTimestamps<G, N>,
33        PERSONS,
34        CONTENTS,
35        STRINGS,
36        LABELNAMES,
37    > {
38        let ContiguousSubgraph {
39            properties:
40                SwhGraphProperties {
41                    path,
42                    num_nodes,
43                    maps,
44                    timestamps: NoTimestamps,
45                    persons,
46                    contents,
47                    strings,
48                    label_names,
49                    label_names_are_in_base64_order,
50                },
51            inner,
52        } = self;
53
54        ContiguousSubgraph {
55            properties: SwhGraphProperties {
56                path,
57                num_nodes,
58                maps,
59                timestamps: ContiguousSubgraphTimestamps {
60                    graph: Arc::clone(&inner),
61                },
62                persons,
63                contents,
64                strings,
65                label_names,
66                label_names_are_in_base64_order,
67            },
68            inner,
69        }
70    }
71}
72
73/// View for [`MaybeTimestamps`] that renumbers nodes, as part of [`ContiguousSubgraph`]
74pub struct ContiguousSubgraphTimestamps<
75    G: SwhGraphWithProperties<Timestamps: OptTimestamps>,
76    N: ContractionBackend,
77> {
78    graph: Arc<ContiguousSubgraphInner<G, N>>,
79}
80
81impl<G: SwhGraphWithProperties<Timestamps: OptTimestamps>, N: ContractionBackend> PropertiesBackend
82    for ContiguousSubgraphTimestamps<G, N>
83{
84    type DataFilesAvailability =
85        <<G as SwhGraphWithProperties>::Timestamps as PropertiesBackend>::DataFilesAvailability;
86}
87impl<G: SwhGraphWithProperties<Timestamps: OptTimestamps>, N: ContractionBackend> OptTimestamps
88    for ContiguousSubgraphTimestamps<G, N>
89{
90    #[inline(always)]
91    fn author_timestamp(&self, node: NodeId) -> PropertiesResult<'_, Option<i64>, Self> {
92        self.graph
93            .underlying_graph
94            .properties()
95            .timestamps
96            .author_timestamp(self.graph.contraction.underlying_node_id(node))
97    }
98    #[inline(always)]
99    fn author_timestamp_offset(&self, node: NodeId) -> PropertiesResult<'_, Option<i16>, Self> {
100        self.graph
101            .underlying_graph
102            .properties()
103            .timestamps
104            .author_timestamp_offset(self.graph.contraction.underlying_node_id(node))
105    }
106    #[inline(always)]
107    fn committer_timestamp(&self, node: NodeId) -> PropertiesResult<'_, Option<i64>, Self> {
108        self.graph
109            .underlying_graph
110            .properties()
111            .timestamps
112            .committer_timestamp(self.graph.contraction.underlying_node_id(node))
113    }
114    #[inline(always)]
115    fn committer_timestamp_offset(&self, node: NodeId) -> PropertiesResult<'_, Option<i16>, Self> {
116        self.graph
117            .underlying_graph
118            .properties()
119            .timestamps
120            .committer_timestamp_offset(self.graph.contraction.underlying_node_id(node))
121    }
122}
swh_graph/views/contiguous_subgraph/timestamps.rs

swh_graph/views/contiguous_subgraph/
timestamps.rs
