diff options
Diffstat (limited to 'vendor/syn/benches')
| -rw-r--r-- | vendor/syn/benches/file.rs | 57 | ||||
| -rw-r--r-- | vendor/syn/benches/rust.rs | 182 |
2 files changed, 0 insertions, 239 deletions
diff --git a/vendor/syn/benches/file.rs b/vendor/syn/benches/file.rs deleted file mode 100644 index b424723..0000000 --- a/vendor/syn/benches/file.rs +++ /dev/null @@ -1,57 +0,0 @@ -// $ cargo bench --features full,test --bench file - -#![feature(rustc_private, test)] -#![recursion_limit = "1024"] -#![allow( - clippy::items_after_statements, - clippy::manual_let_else, - clippy::match_like_matches_macro, - clippy::missing_panics_doc, - clippy::must_use_candidate, - clippy::uninlined_format_args -)] - -extern crate test; - -#[macro_use] -#[path = "../tests/macros/mod.rs"] -mod macros; - -#[allow(dead_code)] -#[path = "../tests/repo/mod.rs"] -mod repo; - -use proc_macro2::{Span, TokenStream}; -use std::fs; -use std::str::FromStr; -use syn::parse::{ParseStream, Parser}; -use test::Bencher; - -const FILE: &str = "tests/rust/library/core/src/str/mod.rs"; - -fn get_tokens() -> TokenStream { - repo::clone_rust(); - let content = fs::read_to_string(FILE).unwrap(); - TokenStream::from_str(&content).unwrap() -} - -#[bench] -fn baseline(b: &mut Bencher) { - let tokens = get_tokens(); - b.iter(|| drop(tokens.clone())); -} - -#[bench] -fn create_token_buffer(b: &mut Bencher) { - let tokens = get_tokens(); - fn immediate_fail(_input: ParseStream) -> syn::Result<()> { - Err(syn::Error::new(Span::call_site(), "")) - } - b.iter(|| immediate_fail.parse2(tokens.clone())); -} - -#[bench] -fn parse_file(b: &mut Bencher) { - let tokens = get_tokens(); - b.iter(|| syn::parse2::<syn::File>(tokens.clone())); -} diff --git a/vendor/syn/benches/rust.rs b/vendor/syn/benches/rust.rs deleted file mode 100644 index 15536db..0000000 --- a/vendor/syn/benches/rust.rs +++ /dev/null @@ -1,182 +0,0 @@ -// $ cargo bench --features full,test --bench rust -// -// Syn only, useful for profiling: -// $ RUSTFLAGS='--cfg syn_only' cargo build --release --features full,test --bench rust - -#![cfg_attr(not(syn_only), feature(rustc_private))] -#![recursion_limit = "1024"] -#![allow( - clippy::arc_with_non_send_sync, - clippy::cast_lossless, - clippy::let_underscore_untyped, - clippy::manual_let_else, - clippy::match_like_matches_macro, - clippy::uninlined_format_args, - clippy::unnecessary_wraps -)] - -#[macro_use] -#[path = "../tests/macros/mod.rs"] -mod macros; - -#[allow(dead_code)] -#[path = "../tests/repo/mod.rs"] -mod repo; - -use std::fs; -use std::time::{Duration, Instant}; - -#[cfg(not(syn_only))] -mod tokenstream_parse { - use proc_macro2::TokenStream; - use std::str::FromStr; - - pub fn bench(content: &str) -> Result<(), ()> { - TokenStream::from_str(content).map(drop).map_err(drop) - } -} - -mod syn_parse { - pub fn bench(content: &str) -> Result<(), ()> { - syn::parse_file(content).map(drop).map_err(drop) - } -} - -#[cfg(not(syn_only))] -mod librustc_parse { - extern crate rustc_data_structures; - extern crate rustc_driver; - extern crate rustc_error_messages; - extern crate rustc_errors; - extern crate rustc_parse; - extern crate rustc_session; - extern crate rustc_span; - - use rustc_data_structures::sync::Lrc; - use rustc_error_messages::FluentBundle; - use rustc_errors::{emitter::Emitter, translation::Translate, DiagCtxt, Diagnostic}; - use rustc_session::parse::ParseSess; - use rustc_span::source_map::{FilePathMapping, SourceMap}; - use rustc_span::{edition::Edition, FileName}; - - pub fn bench(content: &str) -> Result<(), ()> { - struct SilentEmitter; - - impl Emitter for SilentEmitter { - fn emit_diagnostic(&mut self, _diag: &Diagnostic) {} - fn source_map(&self) -> Option<&Lrc<SourceMap>> { - None - } - } - - impl Translate for SilentEmitter { - fn fluent_bundle(&self) -> Option<&Lrc<FluentBundle>> { - None - } - fn fallback_fluent_bundle(&self) -> &FluentBundle { - panic!("silent emitter attempted to translate a diagnostic"); - } - } - - rustc_span::create_session_if_not_set_then(Edition::Edition2018, |_| { - let source_map = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let emitter = Box::new(SilentEmitter); - let handler = DiagCtxt::with_emitter(emitter); - let sess = ParseSess::with_dcx(handler, source_map); - if let Err(diagnostic) = rustc_parse::parse_crate_from_source_str( - FileName::Custom("bench".to_owned()), - content.to_owned(), - &sess, - ) { - diagnostic.cancel(); - return Err(()); - }; - Ok(()) - }) - } -} - -#[cfg(not(syn_only))] -mod read_from_disk { - pub fn bench(content: &str) -> Result<(), ()> { - let _ = content; - Ok(()) - } -} - -fn exec(mut codepath: impl FnMut(&str) -> Result<(), ()>) -> Duration { - let begin = Instant::now(); - let mut success = 0; - let mut total = 0; - - ["tests/rust/compiler", "tests/rust/library"] - .iter() - .flat_map(|dir| { - walkdir::WalkDir::new(dir) - .into_iter() - .filter_entry(repo::base_dir_filter) - }) - .for_each(|entry| { - let entry = entry.unwrap(); - let path = entry.path(); - if path.is_dir() { - return; - } - let content = fs::read_to_string(path).unwrap(); - let ok = codepath(&content).is_ok(); - success += ok as usize; - total += 1; - if !ok { - eprintln!("FAIL {}", path.display()); - } - }); - - assert_eq!(success, total); - begin.elapsed() -} - -fn main() { - repo::clone_rust(); - - macro_rules! testcases { - ($($(#[$cfg:meta])* $name:ident,)*) => { - [ - $( - $(#[$cfg])* - (stringify!($name), $name::bench as fn(&str) -> Result<(), ()>), - )* - ] - }; - } - - #[cfg(not(syn_only))] - { - let mut lines = 0; - let mut files = 0; - exec(|content| { - lines += content.lines().count(); - files += 1; - Ok(()) - }); - eprintln!("\n{} lines in {} files", lines, files); - } - - for (name, f) in testcases!( - #[cfg(not(syn_only))] - read_from_disk, - #[cfg(not(syn_only))] - tokenstream_parse, - syn_parse, - #[cfg(not(syn_only))] - librustc_parse, - ) { - eprint!("{:20}", format!("{}:", name)); - let elapsed = exec(f); - eprintln!( - "elapsed={}.{:03}s", - elapsed.as_secs(), - elapsed.subsec_millis(), - ); - } - eprintln!(); -} |