Added string benchmarks, and updated dependencies (#491)

boa/Cargo.toml

@@ -14,14 +14,14 @@ edition = "2018"
 profiler = ["measureme", "once_cell"]
 
 [dependencies]
-gc = { version = "0.3.5", features = ["derive"] }
-serde_json = "1.0.53"
+gc = { version = "0.3.6", features = ["derive"] }
+serde_json = "1.0.55"
 rand = "0.7.3"
-num-traits = "0.2.11"
+num-traits = "0.2.12"
 regex = "1.3.9"
 rustc-hash = "1.1.0"
-num-bigint = { version = "0.2.6", features = ["serde"] }
-num-integer = "0.1.42"
+num-bigint = { version = "0.3.0", features = ["serde"] }
+num-integer = "0.1.43"
 bitflags = "1.2.1"
 
 # Optional Dependencies

boa/benches/exec.rs

@@ -381,6 +381,76 @@ fn array_pop(c: &mut Criterion) {
     });
 }
 
+static STRING_CONCAT: &str = r#"
+(function(){
+    var a = "hello";
+    var b = "world";
+
+    var c = a + b;
+})();
+"#;
+
+fn string_concat(c: &mut Criterion) {
+    let realm = Realm::create();
+    let mut engine = Interpreter::new(realm);
+
+    let mut lexer = Lexer::new(black_box(STRING_CONCAT));
+    lexer.lex().expect("failed to lex");
+
+    let nodes = Parser::new(&black_box(lexer.tokens)).parse_all().unwrap();
+
+    c.bench_function("String concatenation (Execution)", move |b| {
+        b.iter(|| black_box(&nodes).run(&mut engine).unwrap())
+    });
+}
+
+static STRING_COMPARE: &str = r#"
+(function(){
+    var a = "hello";
+    var b = "world";
+
+    var c = a == b;
+
+    var d = b;
+    var e = d == b;
+})();
+"#;
+
+fn string_compare(c: &mut Criterion) {
+    let realm = Realm::create();
+    let mut engine = Interpreter::new(realm);
+
+    let mut lexer = Lexer::new(black_box(STRING_COMPARE));
+    lexer.lex().expect("failed to lex");
+
+    let nodes = Parser::new(&black_box(lexer.tokens)).parse_all().unwrap();
+
+    c.bench_function("String comparison (Execution)", move |b| {
+        b.iter(|| black_box(&nodes).run(&mut engine).unwrap())
+    });
+}
+
+static STRING_COPY: &str = r#"
+(function(){
+    var a = "hello";
+    var b = a;
+})();
+"#;
+
+fn string_copy(c: &mut Criterion) {
+    let realm = Realm::create();
+    let mut engine = Interpreter::new(realm);
+
+    let mut lexer = Lexer::new(black_box(STRING_COPY));
+    lexer.lex().expect("failed to lex");
+
+    let nodes = Parser::new(&black_box(lexer.tokens)).parse_all().unwrap();
+
+    c.bench_function("String copy (Execution)", move |b| {
+        b.iter(|| black_box(&nodes).run(&mut engine).unwrap())
+    });
+}
+
 criterion_group!(
     execution,
     create_realm,
@@ -397,5 +467,8 @@ criterion_group!(
     regexp_creation,
     regexp_literal,
     regexp,
+    string_concat,
+    string_compare,
+    string_copy,
 );
 criterion_main!(execution);

boa_cli/Cargo.toml

@@ -13,7 +13,7 @@ edition = "2018"
 [dependencies]
 Boa = { path = "../boa", features = ["serde"] }
 structopt = "0.3.14"
-serde_json = "1.0.53"
+serde_json = "1.0.55"
 
 [target.x86_64-unknown-linux-gnu.dependencies]
 jemallocator = "0.3.2"