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|
use std::error::Error;
use chewed::{IterWrapper, Parser};
use chomp::{
chomp::ast::NamedExpression,
nibble::{
self,
convert::{Context, Convert},
},
};
use criterion::{
criterion_group, criterion_main, AxisScale, BenchmarkId, Criterion, PlotConfiguration,
Throughput,
};
const INPUTS: &[&str] = &[
include_str!("data/12.nb"),
include_str!("data/24.nb"),
include_str!("data/48.nb"),
include_str!("data/97.nb"),
include_str!("data/194.nb"),
include_str!("data/387.nb"),
include_str!("data/774.nb"),
include_str!("data/1548.nb"),
include_str!("data/3096.nb"),
];
fn parse_autochomp(input: &str) -> Result<NamedExpression, Box<dyn Error>> {
IterWrapper::new(input.chars())
.parse::<autochomp::Ast>()
.map_err(|e| Box::new(e) as Box<dyn Error>)
.and_then(|ast| {
ast.convert(&mut Context::default())
.map_err(|e| Box::new(e) as Box<dyn Error>)
})
}
fn parse_chomp(input: &str) -> Result<NamedExpression, Box<dyn Error>> {
syn::parse_str::<nibble::Statement>(input)
.map_err(|e| Box::new(e) as Box<dyn Error>)
.and_then(|stmt| {
stmt.convert(&mut Context::default())
.map_err(|e| Box::new(e) as Box<dyn Error>)
})
}
fn bench_parse(c: &mut Criterion) {
let plot_config = PlotConfiguration::default().summary_scale(AxisScale::Logarithmic);
let mut group = c.benchmark_group("Parse");
group.plot_config(plot_config);
for (i, input) in INPUTS.iter().enumerate() {
group.throughput(Throughput::Bytes(input.len() as u64));
group.bench_with_input(BenchmarkId::new("Chomp", i), *input, |b, i| {
b.iter(|| parse_chomp(i))
});
group.bench_with_input(BenchmarkId::new("AutoChomp", i), *input, |b, i| {
b.iter(|| parse_autochomp(i))
});
}
}
criterion_group!(benches, bench_parse);
criterion_main!(benches);
|
