1 // $ cargo bench --features full --bench file 2 3 #![feature(rustc_private, test)] 4 #![recursion_limit = "1024"] 5 6 extern crate test; 7 8 #[macro_use] 9 #[path = "../tests/macros/mod.rs"] 10 mod macros; 11 12 #[path = "../tests/common/mod.rs"] 13 mod common; 14 #[path = "../tests/repo/mod.rs"] 15 pub mod repo; 16 17 use proc_macro2::TokenStream; 18 use std::fs; 19 use std::str::FromStr; 20 use test::Bencher; 21 22 const FILE: &str = "tests/rust/library/core/src/str/mod.rs"; 23 24 #[bench] parse_file(b: &mut Bencher)25fn parse_file(b: &mut Bencher) { 26 repo::clone_rust(); 27 let content = fs::read_to_string(FILE).unwrap(); 28 let tokens = TokenStream::from_str(&content).unwrap(); 29 b.iter(|| syn::parse2::<syn::File>(tokens.clone())); 30 } 31