rust/crates/test_utils/src/bench_fixture.rs
2021-02-25 05:47:13 +08:00

43 lines
885 B
Rust

//! Generates large snippets of Rust code for usage in the benchmarks.
use std::fs;
use stdx::format_to;
use crate::project_dir;
pub fn big_struct() -> String {
let n = 1_000;
let mut buf = "pub struct RegisterBlock {".to_string();
for i in 0..n {
format_to!(buf, " /// Doc comment for {}.\n", i);
format_to!(buf, " pub s{}: S{},\n", i, i);
}
buf.push_str("}\n\n");
for i in 0..n {
format_to!(
buf,
"
#[repr(transparent)]
struct S{} {{
field: u32,
}}",
i
);
}
buf
}
pub fn glorious_old_parser() -> String {
let path = project_dir().join("bench_data/glorious_old_parser");
fs::read_to_string(&path).unwrap()
}
pub fn numerous_macro_rules() -> String {
let path = project_dir().join("bench_data/numerous_macro_rules");
fs::read_to_string(&path).unwrap()
}