2018-12-01 16:24:26 +03:00
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#![feature(test)]
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#![feature(specialization)]
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#![feature(box_syntax)]
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extern crate swc_common;
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extern crate swc_ecma_ast;
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extern crate swc_ecma_parser;
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extern crate swc_ecma_transforms;
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extern crate test;
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extern crate testing;
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use swc_common::{FileName, Fold, FoldWith, Visit, VisitWith, DUMMY_SP};
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use swc_ecma_ast::*;
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2018-12-30 05:57:27 +03:00
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use swc_ecma_parser::{Parser, Session, SourceFileInput, Syntax};
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2018-12-01 16:24:26 +03:00
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use swc_ecma_transforms::util::ExprFactory;
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use test::Bencher;
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static SOURCE: &'static str = r#"
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'use strict';
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/**
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* Extract red color out of a color integer:
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*
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* 0x00DEAD -> 0x00
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*
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* @param {Number} color
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* @return {Number}
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*/
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function red( color )
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{
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let foo = 3.14;
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return color >> 16;
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}
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/**
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* Extract green out of a color integer:
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*
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* 0x00DEAD -> 0xDE
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*
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* @param {Number} color
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* @return {Number}
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*/
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function green( color )
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{
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return ( color >> 8 ) & 0xFF;
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}
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/**
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* Extract blue color out of a color integer:
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*
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* 0x00DEAD -> 0xAD
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*
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* @param {Number} color
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* @return {Number}
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*/
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function blue( color )
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{
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return color & 0xFF;
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}
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/**
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* Converts an integer containing a color such as 0x00DEAD to a hex
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* string, such as '#00DEAD';
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*
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* @param {Number} int
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* @return {String}
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*/
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function intToHex( int )
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{
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const mask = '#000000';
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const hex = int.toString( 16 );
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return mask.substring( 0, 7 - hex.length ) + hex;
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}
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/**
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* Converts a hex string containing a color such as '#00DEAD' to
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* an integer, such as 0x00DEAD;
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*
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* @param {Number} num
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* @return {String}
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*/
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function hexToInt( hex )
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{
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return parseInt( hex.substring( 1 ), 16 );
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}
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module.exports = {
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red,
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green,
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blue,
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intToHex,
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hexToInt,
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};"#;
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#[bench]
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fn module_clone(b: &mut Bencher) {
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2018-12-21 10:54:36 +03:00
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let _ = ::testing::run_test(|cm, handler| {
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let fm = cm.new_source_file(FileName::Anon(0), SOURCE.into());
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2018-12-01 16:24:26 +03:00
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let mut parser = Parser::new(
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Session {
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handler: &handler,
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cfg: Default::default(),
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},
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2018-12-30 05:57:27 +03:00
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Syntax::Es2019,
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2018-12-01 16:24:26 +03:00
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SourceFileInput::from(&*fm),
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);
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let module = parser.parse_module().unwrap();
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b.iter(|| test::black_box(module.clone()));
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Ok(())
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});
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}
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#[bench]
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fn fold_empty(b: &mut Bencher) {
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2018-12-21 10:54:36 +03:00
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b.bytes = SOURCE.len() as _;
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2018-12-01 16:24:26 +03:00
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struct Noop;
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2018-12-21 10:54:36 +03:00
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let _ = ::testing::run_test(|cm, handler| {
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let fm = cm.new_source_file(FileName::Anon(0), SOURCE.into());
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2018-12-01 16:24:26 +03:00
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let mut parser = Parser::new(
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Session {
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handler: &handler,
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cfg: Default::default(),
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},
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2018-12-30 05:57:27 +03:00
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Syntax::Es2019,
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2018-12-01 16:24:26 +03:00
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SourceFileInput::from(&*fm),
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);
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let module = parser.parse_module().unwrap();
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let mut folder = Noop;
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b.iter(|| test::black_box(module.clone().fold_with(&mut folder)));
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Ok(())
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});
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}
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/// Optimized out
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#[bench]
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fn fold_noop_impl_all(b: &mut Bencher) {
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struct Noop;
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impl<T> Fold<T> for Noop
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where
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T: FoldWith<Self>,
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{
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fn fold(&mut self, node: T) -> T {
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node
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}
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}
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2018-12-21 10:54:36 +03:00
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b.bytes = SOURCE.len() as _;
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let _ = ::testing::run_test(|cm, handler| {
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let fm = cm.new_source_file(FileName::Anon(0), SOURCE.into());
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2018-12-01 16:24:26 +03:00
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let mut parser = Parser::new(
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Session {
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handler: &handler,
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cfg: Default::default(),
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},
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2018-12-30 05:57:27 +03:00
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Syntax::Es2019,
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2018-12-01 16:24:26 +03:00
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SourceFileInput::from(&*fm),
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);
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let module = parser.parse_module().unwrap();
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let mut folder = Noop;
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b.iter(|| test::black_box(module.clone().fold_with(&mut folder)));
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Ok(())
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});
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}
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/// Optimized out
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#[bench]
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fn fold_noop_impl_vec(b: &mut Bencher) {
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struct Noop;
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impl<T> Fold<Vec<T>> for Noop
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where
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Vec<T>: FoldWith<Self>,
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{
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fn fold(&mut self, node: Vec<T>) -> Vec<T> {
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node
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}
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}
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2018-12-21 10:54:36 +03:00
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b.bytes = SOURCE.len() as _;
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let _ = ::testing::run_test(|cm, handler| {
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let fm = cm.new_source_file(FileName::Anon(0), SOURCE.into());
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2018-12-01 16:24:26 +03:00
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let mut parser = Parser::new(
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Session {
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handler: &handler,
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cfg: Default::default(),
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},
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2018-12-30 05:57:27 +03:00
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Syntax::Es2019,
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2018-12-01 16:24:26 +03:00
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SourceFileInput::from(&*fm),
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);
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let module = parser.parse_module().unwrap();
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let mut folder = Noop;
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b.iter(|| test::black_box(module.clone().fold_with(&mut folder)));
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Ok(())
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});
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}
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fn mk_expr() -> Expr {
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Expr::Call(CallExpr {
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span: DUMMY_SP,
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callee: Ident::new("foo".into(), DUMMY_SP).as_callee(),
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args: vec![],
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})
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}
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#[bench]
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fn boxing_boxed_clone(b: &mut Bencher) {
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2018-12-21 10:54:36 +03:00
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let _ = ::testing::run_test(|_, _| {
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2018-12-01 16:24:26 +03:00
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let expr = box mk_expr();
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b.iter(|| test::black_box(expr.clone()));
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Ok(())
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});
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}
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#[bench]
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fn boxing_unboxed_clone(b: &mut Bencher) {
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2018-12-21 10:54:36 +03:00
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let _ = ::testing::run_test(|_, _| {
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2018-12-01 16:24:26 +03:00
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let expr = mk_expr();
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b.iter(|| test::black_box(expr.clone()));
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Ok(())
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});
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}
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#[bench]
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fn boxing_boxed(b: &mut Bencher) {
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struct Noop;
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2018-12-21 10:54:36 +03:00
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let _ = ::testing::run_test(|_, _| {
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2018-12-01 16:24:26 +03:00
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let mut folder = Noop;
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let expr = box mk_expr();
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b.iter(|| test::black_box(expr.clone().fold_with(&mut folder)));
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Ok(())
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});
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}
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#[bench]
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fn boxing_unboxed(b: &mut Bencher) {
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struct Noop;
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2018-12-21 10:54:36 +03:00
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let _ = ::testing::run_test(|_, _| {
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2018-12-01 16:24:26 +03:00
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let mut folder = Noop;
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let expr = mk_expr();
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b.iter(|| test::black_box(expr.clone().fold_with(&mut folder)));
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Ok(())
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});
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}
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#[bench]
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fn visit_empty(b: &mut Bencher) {
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2018-12-21 10:54:36 +03:00
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b.bytes = SOURCE.len() as _;
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2018-12-01 16:24:26 +03:00
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struct Noop;
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2018-12-21 10:54:36 +03:00
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let _ = ::testing::run_test(|cm, handler| {
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let fm = cm.new_source_file(FileName::Anon(0), SOURCE.into());
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2018-12-01 16:24:26 +03:00
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let mut parser = Parser::new(
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Session {
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handler: &handler,
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cfg: Default::default(),
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},
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2018-12-30 05:57:27 +03:00
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Syntax::Es2019,
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2018-12-01 16:24:26 +03:00
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SourceFileInput::from(&*fm),
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);
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let module = parser.parse_module().unwrap();
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let mut v = Noop;
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b.iter(|| test::black_box(module.visit_with(&mut v)));
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Ok(())
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});
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}
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#[bench]
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fn visit_contains_this(b: &mut Bencher) {
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fn contains_this_expr(body: &Module) -> bool {
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struct Visitor {
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found: bool,
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}
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impl Visit<ThisExpr> for Visitor {
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fn visit(&mut self, _: &ThisExpr) {
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self.found = true;
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}
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}
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impl Visit<FnExpr> for Visitor {
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/// Don't recurse into fn
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fn visit(&mut self, _: &FnExpr) {}
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}
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impl Visit<FnDecl> for Visitor {
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/// Don't recurse into fn
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fn visit(&mut self, _: &FnDecl) {}
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}
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let mut visitor = Visitor { found: false };
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body.visit_with(&mut visitor);
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visitor.found
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}
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2018-12-21 10:54:36 +03:00
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b.bytes = SOURCE.len() as _;
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let _ = ::testing::run_test(|cm, handler| {
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let fm = cm.new_source_file(FileName::Anon(0), SOURCE.into());
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2018-12-01 16:24:26 +03:00
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let mut parser = Parser::new(
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Session {
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handler: &handler,
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cfg: Default::default(),
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},
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2018-12-30 05:57:27 +03:00
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Syntax::Es2019,
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2018-12-01 16:24:26 +03:00
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SourceFileInput::from(&*fm),
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);
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let module = parser.parse_module().unwrap();
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b.iter(|| test::black_box(contains_this_expr(&module)));
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Ok(())
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});
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}
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