1 #![allow(clippy::unit_arg)]
2 #[macro_use]
3 extern crate criterion;
4
5 use criterion::{black_box, Criterion};
6
7 use annotate_snippets::{
8 display_list::{DisplayList, FormatOptions},
9 snippet::{Annotation, AnnotationType, Slice, Snippet, SourceAnnotation},
10 };
11
create_snippet()12 fn create_snippet() {
13 let snippet = Snippet {
14 slices: vec![Slice {
15 source: r#") -> Option<String> {
16 for ann in annotations {
17 match (ann.range.0, ann.range.1) {
18 (None, None) => continue,
19 (Some(start), Some(end)) if start > end_index => continue,
20 (Some(start), Some(end)) if start >= start_index => {
21 let label = if let Some(ref label) = ann.label {
22 format!(" {}", label)
23 } else {
24 String::from("")
25 };
26
27 return Some(format!(
28 "{}{}{}",
29 " ".repeat(start - start_index),
30 "^".repeat(end - start),
31 label
32 ));
33 }
34 _ => continue,
35 }
36 }"#,
37 line_start: 51,
38 origin: Some("src/format.rs"),
39 fold: false,
40 annotations: vec![
41 SourceAnnotation {
42 label: "expected `Option<String>` because of return type",
43 annotation_type: AnnotationType::Warning,
44 range: (5, 19),
45 },
46 SourceAnnotation {
47 label: "expected enum `std::option::Option`",
48 annotation_type: AnnotationType::Error,
49 range: (26, 724),
50 },
51 ],
52 }],
53 title: Some(Annotation {
54 label: Some("mismatched types"),
55 id: Some("E0308"),
56 annotation_type: AnnotationType::Error,
57 }),
58 footer: vec![],
59 opt: FormatOptions {
60 color: true,
61 ..Default::default()
62 },
63 };
64
65 let dl = DisplayList::from(snippet);
66 let _result = dl.to_string();
67 }
68
criterion_benchmark(c: &mut Criterion)69 pub fn criterion_benchmark(c: &mut Criterion) {
70 c.bench_function("format", |b| b.iter(|| black_box(create_snippet())));
71 }
72
73 criterion_group!(benches, criterion_benchmark);
74 criterion_main!(benches);
75