| // $ cargo bench --features full --bench file | |
| #![feature(rustc_private, test)] | |
| extern crate test; | |
| #[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/src/libcore/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())); | |
| } |