third_party_rust_syn/benches/file.rs
2021-12-12 13:54:33 -08:00

32 lines
737 B
Rust

// $ cargo bench --features full --bench file
#![feature(rustc_private, test)]
#![recursion_limit = "1024"]
#![allow(clippy::missing_panics_doc, clippy::must_use_candidate)]
extern crate test;
#[macro_use]
#[path = "../tests/macros/mod.rs"]
mod macros;
#[path = "../tests/common/mod.rs"]
mod common;
#[path = "../tests/repo/mod.rs"]
pub mod repo;
use proc_macro2::TokenStream;
use std::fs;
use std::str::FromStr;
use test::Bencher;
const FILE: &str = "tests/rust/library/core/src/str/mod.rs";
#[bench]
fn parse_file(b: &mut Bencher) {
repo::clone_rust();
let content = fs::read_to_string(FILE).unwrap();
let tokens = TokenStream::from_str(&content).unwrap();
b.iter(|| syn::parse2::<syn::File>(tokens.clone()));
}