Sha256: 0a0527c78d849148cbb6118b4d36f72da7d4add865ba1a410e0a1be9e8dbfe0e

Contents?: true

Size: 1.3 KB

Versions: 29

Compression:

Stored size: 1.3 KB

Contents

// $ 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()));
}

Version data entries

29 entries across 29 versions & 1 rubygems

Version Path
wasmtime-25.0.2 ./ext/cargo-vendor/syn-2.0.75/benches/file.rs
wasmtime-25.0.1 ./ext/cargo-vendor/syn-2.0.75/benches/file.rs
wasmtime-25.0.0 ./ext/cargo-vendor/syn-2.0.75/benches/file.rs
wasmtime-24.0.0 ./ext/cargo-vendor/syn-2.0.75/benches/file.rs
wasmtime-23.0.2 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-22.0.0 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-21.0.1 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-20.0.2 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-20.0.0 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-18.0.3 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-17.0.1 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-17.0.0 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-16.0.0 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-15.0.1 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-15.0.0 ./ext/cargo-vendor/syn-2.0.48/benches/file.rs
wasmtime-14.0.4 ./ext/cargo-vendor/syn-2.0.38/benches/file.rs
wasmtime-14.0.3 ./ext/cargo-vendor/syn-2.0.38/benches/file.rs
wasmtime-14.0.1 ./ext/cargo-vendor/syn-2.0.38/benches/file.rs
wasmtime-14.0.0 ./ext/cargo-vendor/syn-2.0.38/benches/file.rs
wasmtime-13.0.0 ./ext/cargo-vendor/syn-2.0.29/benches/file.rs