swc/ecmascript/transforms/benches/compat.rs

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#![feature(test)]
extern crate test;
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use swc_common::{chain, sync::Lrc, FileName, Mark, SourceMap};
use swc_ecma_ast::Module;
use swc_ecma_parser::{lexer::Lexer, Parser, StringInput, Syntax};
use swc_ecma_transforms::{compat, helpers, typescript};
use swc_ecma_visit::{Fold, FoldWith};
use test::Bencher;
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static SOURCE: &str = include_str!("assets/AjaxObservable.ts");
fn module(cm: Lrc<SourceMap>) -> Module {
let fm = cm.new_source_file(FileName::Anon, SOURCE.into());
let lexer = Lexer::new(
Syntax::Typescript(Default::default()),
Default::default(),
StringInput::from(&*fm),
None,
);
let mut parser = Parser::new_from(lexer);
let module = parser.parse_module().map_err(|_| ()).unwrap();
module
}
fn run<V>(b: &mut Bencher, tr: impl Fn() -> V)
where
V: Fold,
{
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b.bytes = SOURCE.len() as _;
let _ = ::testing::run_test(false, |cm, _| {
let module = module(cm);
let module = module.fold_with(&mut typescript::strip());
b.iter(|| {
let module = module.clone();
let _ = helpers::HELPERS.set(&Default::default(), || {
let mut tr = tr();
test::black_box(module.fold_with(&mut tr));
});
});
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Ok(())
});
}
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#[bench]
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fn base(b: &mut Bencher) {
struct Noop;
impl Fold for Noop {
#[inline]
fn fold_module(&mut self, m: Module) -> Module {
m
}
}
run(b, || Noop);
}
#[bench]
fn common_typescript(b: &mut Bencher) {
b.bytes = SOURCE.len() as _;
let _ = ::testing::run_test(false, |cm, _| {
let module = module(cm);
let module = module.fold_with(&mut typescript::strip());
b.iter(|| {
let module = module.clone();
let _ = helpers::HELPERS.set(&Default::default(), || {
test::black_box(module.fold_with(&mut typescript::strip()));
});
});
Ok(())
});
}
#[bench]
fn common_reserved_word(b: &mut Bencher) {
run(b, || compat::reserved_words::reserved_words());
}
#[bench]
fn es2020(b: &mut Bencher) {
run(b, || compat::es2020());
}
#[bench]
fn es2020_nullish_coalescing(b: &mut Bencher) {
run(b, || compat::es2020::nullish_coalescing());
}
#[bench]
fn es2020_optional_chaining(b: &mut Bencher) {
run(b, || compat::es2020::optional_chaining());
}
#[bench]
fn es2020_typescript_class_properties(b: &mut Bencher) {
run(b, || compat::es2020::typescript_class_properties());
}
#[bench]
fn es2020_class_properties(b: &mut Bencher) {
run(b, || compat::es2020::class_properties());
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}
#[bench]
fn es2018(b: &mut Bencher) {
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run(b, || compat::es2018());
}
#[bench]
fn es2018_object_rest_spread(b: &mut Bencher) {
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run(b, || compat::es2018::object_rest_spread());
}
#[bench]
fn es2018_optional_catch_binding(b: &mut Bencher) {
run(b, || compat::es2018::optional_catch_binding());
}
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#[bench]
fn es2017(b: &mut Bencher) {
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run(b, || compat::es2017());
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}
#[bench]
fn es2017_async_to_generator(b: &mut Bencher) {
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run(b, || compat::es2017::async_to_generator());
}
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#[bench]
fn es2016(b: &mut Bencher) {
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run(b, || compat::es2016());
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}
#[bench]
fn es2016_exponentation(b: &mut Bencher) {
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run(b, || compat::es2016::exponentation());
}
#[bench]
fn es2015(b: &mut Bencher) {
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run(b, || {
compat::es2015(Mark::fresh(Mark::root()), Default::default())
});
}
#[bench]
fn es2015_arrow(b: &mut Bencher) {
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run(b, || compat::es2015::arrow());
}
#[bench]
fn es2015_block_scoped_fn(b: &mut Bencher) {
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run(b, || compat::es2015::block_scoped_functions());
}
#[bench]
fn es2015_block_scoping(b: &mut Bencher) {
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run(b, || compat::es2015::block_scoping());
}
#[bench]
fn es2015_classes(b: &mut Bencher) {
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run(b, || compat::es2015::classes());
}
#[bench]
fn es2015_computed_props(b: &mut Bencher) {
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run(b, compat::es2015::computed_properties);
}
#[bench]
fn es2015_destructuring(b: &mut Bencher) {
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run(b, || compat::es2015::destructuring(Default::default()));
}
#[bench]
fn es2015_duplicate_keys(b: &mut Bencher) {
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run(b, || compat::es2015::duplicate_keys());
}
#[bench]
fn es2015_parameters(b: &mut Bencher) {
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run(b, || compat::es2015::parameters());
}
#[bench]
fn es2015_fn_name(b: &mut Bencher) {
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run(b, || compat::es2015::function_name());
}
#[bench]
fn es2015_for_of(b: &mut Bencher) {
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run(b, || compat::es2015::for_of(Default::default()));
}
#[bench]
fn es2015_instanceof(b: &mut Bencher) {
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run(b, || compat::es2015::instance_of());
}
#[bench]
fn es2015_shorthand_property(b: &mut Bencher) {
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run(b, || compat::es2015::shorthand());
}
#[bench]
fn es2015_spread(b: &mut Bencher) {
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run(b, || {
compat::es2015::spread(compat::es2015::spread::Config {
..Default::default()
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})
});
}
#[bench]
fn es2015_sticky_regex(b: &mut Bencher) {
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run(b, || compat::es2015::sticky_regex());
}
#[bench]
fn es2015_typeof_symbol(b: &mut Bencher) {
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run(b, || compat::es2015::typeof_symbol());
}
#[bench]
fn es3(b: &mut Bencher) {
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run(b, || compat::es3(Default::default()));
}
#[bench]
fn full_es2016(b: &mut Bencher) {
run(b, || {
chain!(
compat::es2020(),
compat::es2018(),
compat::es2017(),
compat::es2016(),
)
});
}
#[bench]
fn full_es2017(b: &mut Bencher) {
run(b, || {
chain!(compat::es2020(), compat::es2018(), compat::es2017(),)
});
}
#[bench]
fn full_es2018(b: &mut Bencher) {
run(b, || chain!(compat::es2020(), compat::es2018(),));
}