tawasuyu/taffy

1use criterion::{criterion_group, criterion_main, Criterion};
2
3fn build_deep_hierarchy(stretch: &mut stretch::node::Stretch) -> stretch::node::Node {
4    let node111 = stretch
5        .new_node(
6            stretch::style::Style {
7                size: stretch::geometry::Size {
8                    width: stretch::style::Dimension::Points(10.0),
9                    height: stretch::style::Dimension::Points(10.0),
10                },
11                ..Default::default()
12            },
13            vec![],
14        )
15        .unwrap();
16    let node112 = stretch
17        .new_node(
18            stretch::style::Style {
19                size: stretch::geometry::Size {
20                    width: stretch::style::Dimension::Points(10.0),
21                    height: stretch::style::Dimension::Points(10.0),
22                },
23                ..Default::default()
24            },
25            vec![],
26        )
27        .unwrap();
28
29    let node121 = stretch
30        .new_node(
31            stretch::style::Style {
32                size: stretch::geometry::Size {
33                    width: stretch::style::Dimension::Points(10.0),
34                    height: stretch::style::Dimension::Points(10.0),
35                },
36                ..Default::default()
37            },
38            vec![],
39        )
40        .unwrap();
41    let node122 = stretch
42        .new_node(
43            stretch::style::Style {
44                size: stretch::geometry::Size {
45                    width: stretch::style::Dimension::Points(10.0),
46                    height: stretch::style::Dimension::Points(10.0),
47                },
48                ..Default::default()
49            },
50            vec![],
51        )
52        .unwrap();
53
54    let node11 = stretch.new_node(stretch::style::Style { ..Default::default() }, vec![node111, node112]).unwrap();
55    let node12 = stretch.new_node(stretch::style::Style { ..Default::default() }, vec![node121, node122]).unwrap();
56    let node1 = stretch.new_node(stretch::style::Style { ..Default::default() }, vec![node11, node12]).unwrap();
57
58    let node211 = stretch
59        .new_node(
60            stretch::style::Style {
61                size: stretch::geometry::Size {
62                    width: stretch::style::Dimension::Points(10.0),
63                    height: stretch::style::Dimension::Points(10.0),
64                },
65                ..Default::default()
66            },
67            vec![],
68        )
69        .unwrap();
70    let node212 = stretch
71        .new_node(
72            stretch::style::Style {
73                size: stretch::geometry::Size {
74                    width: stretch::style::Dimension::Points(10.0),
75                    height: stretch::style::Dimension::Points(10.0),
76                },
77                ..Default::default()
78            },
79            vec![],
80        )
81        .unwrap();
82
83    let node221 = stretch
84        .new_node(
85            stretch::style::Style {
86                size: stretch::geometry::Size {
87                    width: stretch::style::Dimension::Points(10.0),
88                    height: stretch::style::Dimension::Points(10.0),
89                },
90                ..Default::default()
91            },
92            vec![],
93        )
94        .unwrap();
95    let node222 = stretch
96        .new_node(
97            stretch::style::Style {
98                size: stretch::geometry::Size {
99                    width: stretch::style::Dimension::Points(10.0),
100                    height: stretch::style::Dimension::Points(10.0),
101                },
102                ..Default::default()
103            },
104            vec![],
105        )
106        .unwrap();
107
108    let node21 = stretch.new_node(stretch::style::Style { ..Default::default() }, vec![node211, node212]).unwrap();
109    let node22 = stretch.new_node(stretch::style::Style { ..Default::default() }, vec![node221, node222]).unwrap();
110
111    let node2 = stretch.new_node(stretch::style::Style { ..Default::default() }, vec![node21, node22]).unwrap();
112    let node0 = stretch.new_node(stretch::style::Style { ..Default::default() }, vec![node1, node2]).unwrap();
113
114    node0
115}
116
117fn stretch_benchmarks(c: &mut Criterion) {
118    c.bench_function("deep hierarchy - build", |b| {
119        b.iter(|| {
120            let mut stretch = stretch::node::Stretch::new();
121            build_deep_hierarchy(&mut stretch);
122        })
123    });
124
125    c.bench_function("deep hierarchy - single", |b| {
126        b.iter(|| {
127            let mut stretch = stretch::node::Stretch::new();
128            let root = build_deep_hierarchy(&mut stretch);
129            stretch.compute_layout(root, stretch::geometry::Size::undefined()).unwrap()
130        })
131    });
132
133    c.bench_function("deep hierarchy - relayout", |b| {
134        let mut stretch = stretch::node::Stretch::new();
135        let root = build_deep_hierarchy(&mut stretch);
136
137        b.iter(|| {
138            stretch.mark_dirty(root);
139            stretch.compute_layout(root, stretch::geometry::Size::undefined()).unwrap()
140        })
141    });
142}
143
144criterion_group!(benches, stretch_benchmarks);
145criterion_main!(benches);