adding benchmarks (#76)

Cargo.lock

@@ -5,6 +5,7 @@ name = "Boa"
 version = "0.2.1"
 dependencies = [
  "chrono 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "criterion 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "gc 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "gc_derive 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -12,16 +13,55 @@ dependencies = [
  "wasm-bindgen 0.2.47 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "arrayvec"
+version = "0.4.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "atty"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.59 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termion 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "autocfg"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "bitflags"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "bstr"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-automata 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.94 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "bumpalo"
 version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
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+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "c2-chacha"
 version = "0.2.2"
@@ -31,6 +71,11 @@ dependencies = [
  "ppv-lite86 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cast"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "cfg-if"
 version = "0.1.9"
@@ -47,6 +92,129 @@ dependencies = [
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 ]
 
+[[package]]
+name = "clap"
+version = "2.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "cloudabi"
+version = "0.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "criterion"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cast 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "criterion-plot 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "csv 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "libc 0.2.59 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "rayon 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "serde_derive 1.0.94 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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+
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+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bstr 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "csv-core 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ryu 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.94 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "csv-core"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+version = "1.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
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+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "gc"
 version = "0.3.3"
@@ -71,6 +239,14 @@ dependencies = [
  "libc 0.2.59 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "either 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "itoa"
 version = "0.4.4"
@@ -97,6 +273,24 @@ dependencies = [
  "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "memchr"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.59 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
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+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "num-integer"
 version = "0.1.41"
@@ -114,6 +308,19 @@ dependencies = [
  "autocfg 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "num_cpus"
+version = "1.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.59 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.5"
@@ -162,6 +369,19 @@ dependencies = [
  "rand_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand_core"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rand_core"
 version = "0.5.0"
@@ -178,21 +398,112 @@ dependencies = [
  "rand_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand_os"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+ "libc 0.2.59 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
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+
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+
 [[package]]
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+[[package]]
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+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+
+[[package]]
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+
 [[package]]
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+[[package]]
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+ "syn 0.15.39 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -245,6 +556,25 @@ dependencies = [
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+
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+
 [[package]]
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@@ -255,6 +585,20 @@ dependencies = [
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+[[package]]
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+
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@@ -265,6 +609,16 @@ name = "unicode-xid"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -327,46 +681,95 @@ name = "winapi-i686-pc-windows-gnu"
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Cargo.toml

@@ -23,11 +23,14 @@ chrono = "0.4.7"
 # Optional Dependencies
 wasm-bindgen = { version = "0.2.47", optional = true }
 
+[dev-dependencies]
+criterion = "0.2"
+
 [lib]
 crate-type = ["cdylib", "lib"]
 name = "boa"
 path = "src/lib/lib.rs"
 
-# [[bin]]
+[[bench]]
-# name = "js"
+name = "string"
-# path = "src/bin/bin.rs"
+harness = false

benches/string.rs

@@ -0,0 +1,39 @@
+#[macro_use]
+extern crate criterion;
+
+use boa::exec;
+use boa::syntax::lexer::Lexer;
+use boa::syntax::parser::Parser;
+use criterion::black_box;
+use criterion::Criterion;
+
+static SRC: &str = "let foo = 'hello world!'; foo;";
+
+fn hello_world_lexer(c: &mut Criterion) {
+    c.bench_function("Hello World (Lexer)", move |b| {
+        b.iter(|| {
+            let mut lexer = Lexer::new(black_box(SRC));
+            let _ = lexer.lex();
+        })
+    });
+}
+
+fn hello_world_parser(c: &mut Criterion) {
+    c.bench_function("Hello World (Parser)", move |b| {
+        b.iter(|| {
+            let mut lexer = Lexer::new(SRC);
+            lexer.lex().unwrap();
+            let tokens = lexer.tokens;
+            Parser::new(black_box(tokens)).parse_all().unwrap();
+        })
+    });
+}
+
+fn hello_world(c: &mut Criterion) {
+    c.bench_function("Hello World (Execution)", move |b| {
+        b.iter(|| exec(black_box(SRC)))
+    });
+}
+
+criterion_group!(benches, hello_world, hello_world_lexer, hello_world_parser);
+criterion_main!(benches);