test_utils/
bench_fixture.rs

1//! Generates large snippets of Rust code for usage in the benchmarks.
2
3use std::fs;
4
5use stdx::format_to;
6
7use crate::project_root;
8
9pub fn big_struct() -> String {
10    let n = 1_000;
11    big_struct_n(n)
12}
13
14pub fn big_struct_n(n: u32) -> String {
15    let mut buf = "pub struct RegisterBlock {".to_owned();
16    for i in 0..n {
17        format_to!(buf, "  /// Doc comment for {}.\n", i);
18        format_to!(buf, "  pub s{}: S{},\n", i, i);
19    }
20    buf.push_str("}\n\n");
21    for i in 0..n {
22        format_to!(
23            buf,
24            "
25
26#[repr(transparent)]
27struct S{} {{
28    field: u32,
29}}",
30            i
31        );
32    }
33
34    buf
35}
36
37pub fn glorious_old_parser() -> String {
38    let path = project_root().join("bench_data/glorious_old_parser");
39    fs::read_to_string(path).unwrap()
40}
41
42pub fn numerous_macro_rules() -> String {
43    let path = project_root().join("bench_data/numerous_macro_rules");
44    fs::read_to_string(path).unwrap()
45}
test_utils/bench_fixture.rs

test_utils/
bench_fixture.rs
