Implement From<&str> for JsValue

boa_cli/src/debug/shape.rs

@@ -33,9 +33,9 @@ fn r#type(_: &JsValue, args: &[JsValue], _: &mut Context<'_>) -> JsResult<JsValu
     let shape = object.shape();
 
     Ok(if shape.is_shared() {
-        js_string!("shared")
+        "shared"
     } else {
-        js_string!("unique")
+        "unique"
     }
     .into())
 }

boa_engine/src/builtins/array/array_iterator.rs

@@ -11,7 +11,6 @@ use crate::{
     },
     context::intrinsics::Intrinsics,
     error::JsNativeError,
-    js_string,
     object::{JsObject, ObjectData},
     property::{Attribute, PropertyNameKind},
     realm::Realm,
@@ -48,10 +47,10 @@ impl IntrinsicObject for ArrayIterator {
                     .iterator_prototypes()
                     .iterator(),
             )
-            .static_method(Self::next, js_string!("next"), 0)
+            .static_method(Self::next, "next", 0)
             .static_property(
                 JsSymbol::to_string_tag(),
-                js_string!("Array Iterator"),
+                "Array Iterator",
                 Attribute::CONFIGURABLE,
             )
             .build();

boa_engine/src/builtins/array/tests.rs

@@ -38,7 +38,7 @@ fn of() {
         TestAction::assert("arrayEquals(Array.of(), [])"),
         TestAction::run("let a = Array.of.call(Date, 'a', undefined, 3);"),
         TestAction::assert("a instanceof Date"),
-        TestAction::assert_eq("a[0]", js_string!("a")),
+        TestAction::assert_eq("a[0]", "a"),
         TestAction::assert_eq("a[1]", JsValue::undefined()),
         TestAction::assert_eq("a[2]", 3),
         TestAction::assert_eq("a.length", 3),
@@ -75,9 +75,9 @@ fn copy_within() {
 fn join() {
     run_test_actions([
         TestAction::assert_eq("[].join('.')", js_string!()),
-        TestAction::assert_eq("['a'].join('.')", js_string!("a")),
-        TestAction::assert_eq("['a', 'b', 'c'].join('.')", js_string!("a.b.c")),
-        TestAction::assert_eq("let a=[];a[0]=a;a[1]=a;a[2]=a;a.join()", js_string!(",,")),
+        TestAction::assert_eq("['a'].join('.')", "a"),
+        TestAction::assert_eq("['a', 'b', 'c'].join('.')", "a.b.c"),
+        TestAction::assert_eq("let a=[];a[0]=a;a[1]=a;a[2]=a;a.join()", ",,"),
     ]);
 }
 
@@ -85,8 +85,8 @@ fn join() {
 fn to_string() {
     run_test_actions([
         TestAction::assert_eq("[].toString()", js_string!()),
-        TestAction::assert_eq("['a'].toString()", js_string!("a")),
-        TestAction::assert_eq("['a', 'b', 'c'].toString()", js_string!("a,b,c")),
+        TestAction::assert_eq("['a'].toString()", "a"),
+        TestAction::assert_eq("['a', 'b', 'c'].toString()", "a,b,c"),
     ]);
 }
 
@@ -116,7 +116,7 @@ fn every() {
 fn find() {
     run_test_actions([TestAction::assert_eq(
         "['a', 'b', 'c'].find(e => e == 'a')",
-        js_string!("a"),
+        "a",
     )]);
 }
 
@@ -350,7 +350,7 @@ fn fill_obj_ref() {
                 let a = new Array(3).fill(obj);
                 obj.hi = 'hi'
             "#}),
-        TestAction::assert_eq("a[2].hi", js_string!("hi")),
+        TestAction::assert_eq("a[2].hi", "hi"),
     ]);
 }
 

boa_engine/src/builtins/atomics/mod.rs

@@ -17,7 +17,6 @@ use std::sync::atomic::Ordering;
 use crate::{
     builtins::BuiltInObject,
     context::intrinsics::Intrinsics,
-    js_string,
     object::{JsObject, Object},
     property::Attribute,
     realm::Realm,
@@ -472,9 +471,9 @@ impl Atomics {
         };
 
         Ok(match result {
-            futex::AtomicsWaitResult::NotEqual => js_string!("not-equal"),
-            futex::AtomicsWaitResult::TimedOut => js_string!("timed-out"),
-            futex::AtomicsWaitResult::Ok => js_string!("ok"),
+            futex::AtomicsWaitResult::NotEqual => "not-equal",
+            futex::AtomicsWaitResult::TimedOut => "timed-out",
+            futex::AtomicsWaitResult::Ok => "ok",
         }
         .into())
     }

boa_engine/src/builtins/bigint/tests.rs

@@ -1,4 +1,4 @@
-use crate::{js_string, run_test_actions, JsBigInt, JsNativeErrorKind, TestAction};
+use crate::{run_test_actions, JsBigInt, JsNativeErrorKind, TestAction};
 
 #[test]
 fn equality() {
@@ -147,10 +147,10 @@ fn operations() {
 #[test]
 fn to_string() {
     run_test_actions([
-        TestAction::assert_eq("1000n.toString()", js_string!("1000")),
-        TestAction::assert_eq("1000n.toString(2)", js_string!("1111101000")),
-        TestAction::assert_eq("255n.toString(16)", js_string!("ff")),
-        TestAction::assert_eq("1000n.toString(36)", js_string!("rs")),
+        TestAction::assert_eq("1000n.toString()", "1000"),
+        TestAction::assert_eq("1000n.toString(2)", "1111101000"),
+        TestAction::assert_eq("255n.toString(16)", "ff"),
+        TestAction::assert_eq("1000n.toString(36)", "rs"),
     ]);
 }
 

boa_engine/src/builtins/date/mod.rs

@@ -1246,7 +1246,7 @@ impl Date {
         // 2. Let tv be ? thisTimeValue(O).
         let Some(tv) = this_time_value(this)?.and_then(NaiveDateTime::from_timestamp_millis) else {
             // 3. If tv is NaN, return "Invalid Date".
-            return Ok(js_string!("Invalid Date").into());
+            return Ok("Invalid Date".into());
         };
 
         // 4. Let t be LocalTime(tv).
@@ -1393,7 +1393,7 @@ impl Date {
         // 1. Let tv be ? thisTimeValue(this value).
         // 2. Return ToDateString(tv).
         let Some(tv) = this_time_value(this)?.and_then(NaiveDateTime::from_timestamp_millis) else {
-            return Ok(js_string!("Invalid Date").into());
+            return Ok("Invalid Date".into());
         };
         Ok(js_string!(context
             .host_hooks()
@@ -1422,7 +1422,7 @@ impl Date {
         // 2. Let tv be ? thisTimeValue(O).
         let Some(tv) = this_time_value(this)?.and_then(NaiveDateTime::from_timestamp_millis) else {
             // 3. If tv is NaN, return "Invalid Date".
-            return Ok(js_string!("Invalid Date").into());
+            return Ok("Invalid Date".into());
         };
 
         // 4. Let t be LocalTime(tv).
@@ -1452,7 +1452,7 @@ impl Date {
         // 1. Let O be this Date object.
         let Some(t) = this_time_value(this)?.and_then(NaiveDateTime::from_timestamp_millis) else {
             // 3. If tv is NaN, return "Invalid Date".
-            return Ok(js_string!("Invalid Date").into());
+            return Ok("Invalid Date".into());
         };
 
         // 2. Let tv be ? thisTimeValue(O).

boa_engine/src/builtins/date/tests.rs

@@ -762,7 +762,7 @@ fn date_proto_set_utc_seconds() {
 fn date_proto_to_date_string() {
     run_test_actions([TestAction::assert_eq(
         "new Date(2020, 6, 8, 9, 16, 15, 779).toDateString()",
-        js_string!("Wed Jul 08 2020"),
+        "Wed Jul 08 2020",
     )]);
 }
 
@@ -770,7 +770,7 @@ fn date_proto_to_date_string() {
 fn date_proto_to_gmt_string() {
     run_test_actions([TestAction::assert_eq(
         "new Date(Date.UTC(2020, 6, 8, 9, 16, 15, 779)).toGMTString()",
-        js_string!("Wed, 08 Jul 2020 09:16:15 GMT"),
+        "Wed, 08 Jul 2020 09:16:15 GMT",
     )]);
 }
 
@@ -778,7 +778,7 @@ fn date_proto_to_gmt_string() {
 fn date_proto_to_iso_string() {
     run_test_actions([TestAction::assert_eq(
         "new Date(Date.UTC(2020, 6, 8, 9, 16, 15, 779)).toISOString()",
-        js_string!("2020-07-08T09:16:15.779Z"),
+        "2020-07-08T09:16:15.779Z",
     )]);
 }
 
@@ -786,7 +786,7 @@ fn date_proto_to_iso_string() {
 fn date_proto_to_json() {
     run_test_actions([TestAction::assert_eq(
         "new Date(Date.UTC(2020, 6, 8, 9, 16, 15, 779)).toJSON()",
-        js_string!("2020-07-08T09:16:15.779Z"),
+        "2020-07-08T09:16:15.779Z",
     )]);
 }
 
@@ -826,7 +826,7 @@ fn date_proto_to_time_string() {
 fn date_proto_to_utc_string() {
     run_test_actions([TestAction::assert_eq(
         "new Date(Date.UTC(2020, 6, 8, 9, 16, 15, 779)).toUTCString()",
-        js_string!("Wed, 08 Jul 2020 09:16:15 GMT"),
+        "Wed, 08 Jul 2020 09:16:15 GMT",
     )]);
 }
 

boa_engine/src/builtins/error/tests.rs

@@ -1,42 +1,24 @@
-use crate::{js_string, run_test_actions, TestAction};
+use crate::{run_test_actions, TestAction};
 use indoc::indoc;
 
 #[test]
 fn error_to_string() {
     run_test_actions([
-        TestAction::assert_eq("(new Error('1')).toString()", js_string!("Error: 1")),
-        TestAction::assert_eq(
-            "(new RangeError('2')).toString()",
-            js_string!("RangeError: 2"),
-        ),
-        TestAction::assert_eq(
-            "(new ReferenceError('3')).toString()",
-            js_string!("ReferenceError: 3"),
-        ),
-        TestAction::assert_eq(
-            "(new SyntaxError('4')).toString()",
-            js_string!("SyntaxError: 4"),
-        ),
-        TestAction::assert_eq(
-            "(new TypeError('5')).toString()",
-            js_string!("TypeError: 5"),
-        ),
-        TestAction::assert_eq(
-            "(new EvalError('6')).toString()",
-            js_string!("EvalError: 6"),
-        ),
-        TestAction::assert_eq("(new URIError('7')).toString()", js_string!("URIError: 7")),
+        TestAction::assert_eq("(new Error('1')).toString()", "Error: 1"),
+        TestAction::assert_eq("(new RangeError('2')).toString()", "RangeError: 2"),
+        TestAction::assert_eq("(new ReferenceError('3')).toString()", "ReferenceError: 3"),
+        TestAction::assert_eq("(new SyntaxError('4')).toString()", "SyntaxError: 4"),
+        TestAction::assert_eq("(new TypeError('5')).toString()", "TypeError: 5"),
+        TestAction::assert_eq("(new EvalError('6')).toString()", "EvalError: 6"),
+        TestAction::assert_eq("(new URIError('7')).toString()", "URIError: 7"),
         // no message
-        TestAction::assert_eq("(new Error()).toString()", js_string!("Error")),
-        TestAction::assert_eq("(new RangeError()).toString()", js_string!("RangeError")),
-        TestAction::assert_eq(
-            "(new ReferenceError()).toString()",
-            js_string!("ReferenceError"),
-        ),
-        TestAction::assert_eq("(new SyntaxError()).toString()", js_string!("SyntaxError")),
-        TestAction::assert_eq("(new TypeError()).toString()", js_string!("TypeError")),
-        TestAction::assert_eq("(new EvalError()).toString()", js_string!("EvalError")),
-        TestAction::assert_eq("(new URIError()).toString()", js_string!("URIError")),
+        TestAction::assert_eq("(new Error()).toString()", "Error"),
+        TestAction::assert_eq("(new RangeError()).toString()", "RangeError"),
+        TestAction::assert_eq("(new ReferenceError()).toString()", "ReferenceError"),
+        TestAction::assert_eq("(new SyntaxError()).toString()", "SyntaxError"),
+        TestAction::assert_eq("(new TypeError()).toString()", "TypeError"),
+        TestAction::assert_eq("(new EvalError()).toString()", "EvalError"),
+        TestAction::assert_eq("(new URIError()).toString()", "URIError"),
         // no name
         TestAction::assert_eq(
             indoc! {r#"
@@ -44,7 +26,7 @@ fn error_to_string() {
                 message.name = '';
                 message.toString()
             "#},
-            js_string!("message"),
+            "message",
         ),
     ]);
 }
@@ -52,14 +34,14 @@ fn error_to_string() {
 #[test]
 fn error_names() {
     run_test_actions([
-        TestAction::assert_eq("Error.name", js_string!("Error")),
-        TestAction::assert_eq("EvalError.name", js_string!("EvalError")),
-        TestAction::assert_eq("RangeError.name", js_string!("RangeError")),
-        TestAction::assert_eq("ReferenceError.name", js_string!("ReferenceError")),
-        TestAction::assert_eq("SyntaxError.name", js_string!("SyntaxError")),
-        TestAction::assert_eq("URIError.name", js_string!("URIError")),
-        TestAction::assert_eq("TypeError.name", js_string!("TypeError")),
-        TestAction::assert_eq("AggregateError.name", js_string!("AggregateError")),
+        TestAction::assert_eq("Error.name", "Error"),
+        TestAction::assert_eq("EvalError.name", "EvalError"),
+        TestAction::assert_eq("RangeError.name", "RangeError"),
+        TestAction::assert_eq("ReferenceError.name", "ReferenceError"),
+        TestAction::assert_eq("SyntaxError.name", "SyntaxError"),
+        TestAction::assert_eq("URIError.name", "URIError"),
+        TestAction::assert_eq("TypeError.name", "TypeError"),
+        TestAction::assert_eq("AggregateError.name", "AggregateError"),
     ]);
 }
 

boa_engine/src/builtins/function/tests.rs

@@ -69,7 +69,7 @@ fn function_prototype() {
 fn function_prototype_call() {
     run_test_actions([TestAction::assert_eq(
         "Object.prototype.toString.call(new Error())",
-        js_string!("[object Error]"),
+        "[object Error]",
     )]);
 }
 
@@ -134,9 +134,9 @@ fn closure_capture_clone() {
             let object = JsObject::with_object_proto(ctx.intrinsics());
             object
                 .define_property_or_throw(
-                    js_string!("key"),
+                    "key",
                     PropertyDescriptor::builder()
-                        .value(js_string!(" world!"))
+                        .value(" world!")
                         .writable(false)
                         .enumerable(false)
                         .configurable(false),
@@ -168,10 +168,10 @@ fn closure_capture_clone() {
             .name("closure")
             .build();
 
-            ctx.register_global_property(js_string!("closure"), func, Attribute::default())
+            ctx.register_global_property("closure", func, Attribute::default())
                 .unwrap();
         }),
-        TestAction::assert_eq("closure()", js_string!("Hello world!")),
+        TestAction::assert_eq("closure()", "Hello world!"),
     ]);
 }
 

boa_engine/src/builtins/intl/collator/mod.rs

@@ -160,7 +160,7 @@ impl IntrinsicObject for Collator {
             .static_method(Self::supported_locales_of, "supportedLocalesOf", 1)
             .property(
                 JsSymbol::to_string_tag(),
-                js_string!("Intl.Collator"),
+                "Intl.Collator",
                 Attribute::CONFIGURABLE,
             )
             .accessor("compare", Some(compare), None, Attribute::CONFIGURABLE)
@@ -520,8 +520,8 @@ impl Collator {
             .create_data_property_or_throw(
                 "usage",
                 match collator.usage {
-                    Usage::Search => js_string!("search"),
-                    Usage::Sort => js_string!("sort"),
+                    Usage::Search => "search",
+                    Usage::Sort => "sort",
                 },
                 context,
             )
@@ -530,24 +530,24 @@ impl Collator {
             .create_data_property_or_throw(
                 "sensitivity",
                 match collator.sensitivity {
-                    Sensitivity::Base => js_string!("base"),
-                    Sensitivity::Accent => js_string!("accent"),
-                    Sensitivity::Case => js_string!("case"),
-                    Sensitivity::Variant => js_string!("variant"),
+                    Sensitivity::Base => "base",
+                    Sensitivity::Accent => "accent",
+                    Sensitivity::Case => "case",
+                    Sensitivity::Variant => "variant",
                 },
                 context,
             )
             .expect("operation must not fail per the spec");
         options
             .create_data_property_or_throw(
-                js_string!("ignorePunctuation"),
+                "ignorePunctuation",
                 collator.ignore_punctuation,
                 context,
             )
             .expect("operation must not fail per the spec");
         options
             .create_data_property_or_throw(
-                js_string!("collation"),
+                "collation",
                 js_string!(collator.collation.to_string()),
                 context,
             )
@@ -558,11 +558,11 @@ impl Collator {
         if let Some(kf) = collator.case_first {
             options
                 .create_data_property_or_throw(
-                    js_string!("caseFirst"),
+                    "caseFirst",
                     match kf {
-                        CaseFirst::Off => js_string!("false"),
-                        CaseFirst::LowerFirst => js_string!("lower"),
-                        CaseFirst::UpperFirst => js_string!("upper"),
+                        CaseFirst::Off => "false",
+                        CaseFirst::LowerFirst => "lower",
+                        CaseFirst::UpperFirst => "upper",
                         _ => unreachable!(),
                     },
                     context,

boa_engine/src/builtins/intl/date_time_format.rs

@@ -267,7 +267,7 @@ pub(crate) fn to_date_time_options(
         // a. For each property name prop of « "year", "month", "day" », do
         for property in ["year", "month", "day"] {
             // i. Perform ? CreateDataPropertyOrThrow(options, prop, "numeric").
-            options.create_data_property_or_throw(property, js_string!("numeric"), context)?;
+            options.create_data_property_or_throw(property, "numeric", context)?;
         }
     }
 
@@ -276,7 +276,7 @@ pub(crate) fn to_date_time_options(
         // a. For each property name prop of « "hour", "minute", "second" », do
         for property in ["hour", "minute", "second"] {
             // i. Perform ? CreateDataPropertyOrThrow(options, prop, "numeric").
-            options.create_data_property_or_throw(property, js_string!("numeric"), context)?;
+            options.create_data_property_or_throw(property, "numeric", context)?;
         }
     }
 

boa_engine/src/builtins/intl/list_format/mod.rs

@@ -51,7 +51,7 @@ impl IntrinsicObject for ListFormat {
             .static_method(Self::supported_locales_of, "supportedLocalesOf", 1)
             .property(
                 JsSymbol::to_string_tag(),
-                js_string!("Intl.ListFormat"),
+                "Intl.ListFormat",
                 Attribute::CONFIGURABLE,
             )
             .method(Self::format, "format", 1)
@@ -437,9 +437,9 @@ impl ListFormat {
             .create_data_property_or_throw(
                 "type",
                 match lf.typ {
-                    ListFormatType::Conjunction => js_string!("conjunction"),
-                    ListFormatType::Disjunction => js_string!("disjunction"),
-                    ListFormatType::Unit => js_string!("unit"),
+                    ListFormatType::Conjunction => "conjunction",
+                    ListFormatType::Disjunction => "disjunction",
+                    ListFormatType::Unit => "unit",
                 },
                 context,
             )
@@ -448,9 +448,9 @@ impl ListFormat {
             .create_data_property_or_throw(
                 "style",
                 match lf.style {
-                    ListLength::Wide => js_string!("long"),
-                    ListLength::Short => js_string!("short"),
-                    ListLength::Narrow => js_string!("narrow"),
+                    ListLength::Wide => "long",
+                    ListLength::Short => "short",
+                    ListLength::Narrow => "narrow",
                     _ => unreachable!(),
                 },
                 context,

boa_engine/src/builtins/intl/locale/mod.rs

@@ -76,7 +76,7 @@ impl IntrinsicObject for Locale {
         BuiltInBuilder::from_standard_constructor::<Self>(realm)
             .property(
                 JsSymbol::to_string_tag(),
-                js_string!("Intl.Locale"),
+                "Intl.Locale",
                 Attribute::CONFIGURABLE,
             )
             .method(Self::maximize, "maximize", 0)

boa_engine/src/builtins/intl/plural_rules/mod.rs

@@ -54,7 +54,7 @@ impl IntrinsicObject for PluralRules {
             .static_method(Self::supported_locales_of, "supportedLocalesOf", 1)
             .property(
                 JsSymbol::to_string_tag(),
-                js_string!("Intl.PluralRules"),
+                "Intl.PluralRules",
                 Attribute::CONFIGURABLE,
             )
             .method(Self::resolved_options, "resolvedOptions", 0)
@@ -266,14 +266,14 @@ impl PluralRules {
             .property(
                 "type",
                 match plural_rules.rule_type {
-                    PluralRuleType::Cardinal => js_string!("cardinal"),
-                    PluralRuleType::Ordinal => js_string!("ordinal"),
-                    _ => js_string!("unknown"),
+                    PluralRuleType::Cardinal => "cardinal",
+                    PluralRuleType::Ordinal => "ordinal",
+                    _ => "unknown",
                 },
                 Attribute::all(),
             )
             .property(
-                js_string!("minimumIntegerDigits"),
+                "minimumIntegerDigits",
                 plural_rules.format_options.minimum_integer_digits,
                 Attribute::all(),
             );
@@ -282,16 +282,8 @@ impl PluralRules {
             plural_rules.format_options.rounding_type.fraction_digits()
         {
             options
-                .property(
-                    js_string!("minimumFractionDigits"),
-                    minimum,
-                    Attribute::all(),
-                )
-                .property(
-                    js_string!("maximumFractionDigits"),
-                    maximum,
-                    Attribute::all(),
-                );
+                .property("minimumFractionDigits", minimum, Attribute::all())
+                .property("maximumFractionDigits", maximum, Attribute::all());
         }
 
         if let Some(Extrema { minimum, maximum }) = plural_rules
@@ -300,31 +292,23 @@ impl PluralRules {
             .significant_digits()
         {
             options
-                .property(
-                    js_string!("minimumSignificantDigits"),
-                    minimum,
-                    Attribute::all(),
-                )
-                .property(
-                    js_string!("maximumSignificantDigits"),
-                    maximum,
-                    Attribute::all(),
-                );
+                .property("minimumSignificantDigits", minimum, Attribute::all())
+                .property("maximumSignificantDigits", maximum, Attribute::all());
         }
 
         options
             .property(
-                js_string!("roundingMode"),
+                "roundingMode",
                 js_string!(plural_rules.format_options.rounding_mode.to_string()),
                 Attribute::all(),
             )
             .property(
-                js_string!("roundingIncrement"),
+                "roundingIncrement",
                 plural_rules.format_options.rounding_increment,
                 Attribute::all(),
             )
             .property(
-                js_string!("trailingZeroDisplay"),
+                "trailingZeroDisplay",
                 js_string!(plural_rules
                     .format_options
                     .trailing_zero_display
@@ -343,11 +327,7 @@ impl PluralRules {
         );
 
         // 6. Perform ! CreateDataProperty(options, "pluralCategories", CreateArrayFromList(pluralCategories)).
-        options.property(
-            js_string!("pluralCategories"),
-            plural_categories,
-            Attribute::all(),
-        );
+        options.property("pluralCategories", plural_categories, Attribute::all());
 
         // 7. If pr.[[RoundingType]] is morePrecision, then
         //     a. Perform ! CreateDataPropertyOrThrow(options, "roundingPriority", "morePrecision").
@@ -356,7 +336,7 @@ impl PluralRules {
         // 9. Else,
         //     a. Perform ! CreateDataPropertyOrThrow(options, "roundingPriority", "auto").
         options.property(
-            js_string!("roundingPriority"),
+            "roundingPriority",
             js_string!(plural_rules.format_options.rounding_priority.to_string()),
             Attribute::all(),
         );
@@ -410,11 +390,12 @@ fn resolve_plural(plural_rules: &PluralRules, n: f64) -> ResolvedPlural {
 
 fn plural_category_to_js_string(category: PluralCategory) -> JsString {
     match category {
-        PluralCategory::Zero => js_string!("zero"),
-        PluralCategory::One => js_string!("one"),
-        PluralCategory::Two => js_string!("two"),
-        PluralCategory::Few => js_string!("few"),
-        PluralCategory::Many => js_string!("many"),
-        PluralCategory::Other => js_string!("other"),
+        PluralCategory::Zero => "zero",
+        PluralCategory::One => "one",
+        PluralCategory::Two => "two",
+        PluralCategory::Few => "few",
+        PluralCategory::Many => "many",
+        PluralCategory::Other => "other",
     }
+    .into()
 }

boa_engine/src/builtins/intl/segmenter/iterator.rs

@@ -68,7 +68,7 @@ impl IntrinsicObject for SegmentIterator {
         BuiltInBuilder::with_intrinsic::<Self>(realm)
             .static_property(
                 JsSymbol::to_string_tag(),
-                js_string!("Segmenter String Iterator"),
+                "Segmenter String Iterator",
                 Attribute::CONFIGURABLE,
             )
             .static_method(Self::next, "next", 0)

boa_engine/src/builtins/intl/segmenter/mod.rs

@@ -90,7 +90,7 @@ impl IntrinsicObject for Segmenter {
             .static_method(Self::supported_locales_of, "supportedLocalesOf", 1)
             .property(
                 JsSymbol::to_string_tag(),
-                js_string!("Intl.Segmenter"),
+                "Intl.Segmenter",
                 Attribute::CONFIGURABLE,
             )
             .method(Self::resolved_options, "resolvedOptions", 0)

boa_engine/src/builtins/json/mod.rs

@@ -358,7 +358,7 @@ impl Json {
                 .to_integer_or_infinity(context)
                 .expect("ToIntegerOrInfinity cannot fail on number")
             {
-                IntegerOrInfinity::PositiveInfinity => js_string!("          "),
+                IntegerOrInfinity::PositiveInfinity => "          ".into(),
                 IntegerOrInfinity::NegativeInfinity => js_string!(),
                 IntegerOrInfinity::Integer(i) if i < 1 => js_string!(),
                 IntegerOrInfinity::Integer(i) => {
@@ -466,7 +466,7 @@ impl Json {
 
         // 5. If value is null, return "null".
         if value.is_null() {
-            return Ok(Some(js_string!("null")));
+            return Ok(Some("null".into()));
         }
 
         // 6. If value is true, return "true".
@@ -496,7 +496,7 @@ impl Json {
             }
 
             // b. Return "null".
-            return Ok(Some(js_string!("null")));
+            return Ok(Some("null".into()));
         }
 
         // 10. If Type(value) is BigInt, throw a TypeError exception.

boa_engine/src/builtins/json/tests.rs

@@ -5,7 +5,7 @@ use crate::{js_string, run_test_actions, JsNativeErrorKind, JsValue, TestAction}
 #[test]
 fn json_sanity() {
     run_test_actions([
-        TestAction::assert_eq(r#"JSON.parse('{"aaa":"bbb"}').aaa"#, js_string!("bbb")),
+        TestAction::assert_eq(r#"JSON.parse('{"aaa":"bbb"}').aaa"#, "bbb"),
         TestAction::assert_eq(
             r#"JSON.stringify({aaa: 'bbb'})"#,
             js_string!(r#"{"aaa":"bbb"}"#),
@@ -89,7 +89,7 @@ fn json_stringify_object_array() {
 fn json_stringify_array_converts_undefined_to_null() {
     run_test_actions([TestAction::assert_eq(
         "JSON.stringify([undefined])",
-        js_string!("[null]"),
+        "[null]",
     )]);
 }
 
@@ -97,7 +97,7 @@ fn json_stringify_array_converts_undefined_to_null() {
 fn json_stringify_array_converts_function_to_null() {
     run_test_actions([TestAction::assert_eq(
         "JSON.stringify([() => {}])",
-        js_string!("[null]"),
+        "[null]",
     )]);
 }
 
@@ -105,7 +105,7 @@ fn json_stringify_array_converts_function_to_null() {
 fn json_stringify_array_converts_symbol_to_null() {
     run_test_actions([TestAction::assert_eq(
         "JSON.stringify([Symbol()])",
-        js_string!("[null]"),
+        "[null]",
     )]);
 }
 #[test]
@@ -150,10 +150,7 @@ fn json_stringify_no_args() {
 
 #[test]
 fn json_stringify_fractional_numbers() {
-    run_test_actions([TestAction::assert_eq(
-        "JSON.stringify(1.2)",
-        js_string!("1.2"),
-    )]);
+    run_test_actions([TestAction::assert_eq("JSON.stringify(1.2)", "1.2")]);
 }
 
 #[test]
@@ -278,8 +275,8 @@ fn json_parse_object_with_reviver() {
 
                 var jsonObj = JSON.parse(jsonString, dataReviver);
             "#}),
-        TestAction::assert_eq("jsonObj.firstname", js_string!("boa")),
-        TestAction::assert_eq("jsonObj.lastname", js_string!("interpreter")),
+        TestAction::assert_eq("jsonObj.firstname", "boa"),
+        TestAction::assert_eq("jsonObj.lastname", "interpreter"),
     ]);
 }
 

boa_engine/src/builtins/map/map_iterator.rs

@@ -12,7 +12,6 @@ use crate::{
     },
     context::intrinsics::Intrinsics,
     error::JsNativeError,
-    js_string,
     object::{JsObject, ObjectData},
     property::{Attribute, PropertyNameKind},
     realm::Realm,
@@ -52,7 +51,7 @@ impl IntrinsicObject for MapIterator {
             .static_method(Self::next, "next", 0)
             .static_property(
                 JsSymbol::to_string_tag(),
-                js_string!("Map Iterator"),
+                "Map Iterator",
                 Attribute::CONFIGURABLE,
             )
             .build();

boa_engine/src/builtins/map/tests.rs

@@ -1,4 +1,4 @@
-use crate::{js_string, run_test_actions, JsNativeErrorKind, JsValue, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, JsValue, TestAction};
 use indoc::indoc;
 
 #[test]
@@ -74,7 +74,7 @@ fn merge() {
                 let merged2 = new Map([...second, ...third]);
             "#}),
         TestAction::assert_eq("merged1.size", 3),
-        TestAction::assert_eq("merged1.get('2')", js_string!("second two")),
+        TestAction::assert_eq("merged1.get('2')", "second two"),
         TestAction::assert_eq("merged2.size", 4),
     ]);
 }
@@ -85,8 +85,8 @@ fn get() {
         TestAction::run(indoc! {r#"
                 let map = new Map([["1", "one"], ["2", "two"]]);
             "#}),
-        TestAction::assert_eq("map.get('1')", js_string!("one")),
-        TestAction::assert_eq("map.get('2')", js_string!("two")),
+        TestAction::assert_eq("map.get('1')", "one"),
+        TestAction::assert_eq("map.get('2')", "two"),
         TestAction::assert_eq("map.get('3')", JsValue::undefined()),
         TestAction::assert_eq("map.get()", JsValue::undefined()),
     ]);
@@ -98,7 +98,7 @@ fn set() {
         TestAction::run("let map = new Map();"),
         TestAction::assert("map.set(); map.has(undefined)"),
         TestAction::assert_eq("map.get()", JsValue::undefined()),
-        TestAction::assert_eq("map.set('1', 'one'); map.get('1')", js_string!("one")),
+        TestAction::assert_eq("map.set('1', 'one'); map.get('1')", "one"),
         TestAction::assert("map.set('2'); map.has('2')"),
         TestAction::assert_eq("map.get('2')", JsValue::undefined()),
     ]);
@@ -148,7 +148,7 @@ fn keys() {
                 let item2 = keysIterator.next();
                 let item3 = keysIterator.next();
             "#}),
-        TestAction::assert_eq("item1.value", js_string!("0")),
+        TestAction::assert_eq("item1.value", "0"),
         TestAction::assert_eq("item2.value", 1),
         TestAction::assert("item3.done"),
     ]);
@@ -187,8 +187,8 @@ fn values() {
                 let item2 = valuesIterator.next();
                 let item3 = valuesIterator.next();
             "#}),
-        TestAction::assert_eq("item1.value", js_string!("foo")),
-        TestAction::assert_eq("item2.value", js_string!("bar")),
+        TestAction::assert_eq("item1.value", "foo"),
+        TestAction::assert_eq("item2.value", "bar"),
         TestAction::assert("item3.done"),
     ]);
 }
@@ -201,7 +201,7 @@ fn modify_key() {
                 let map = new Map([[obj, "one"]]);
                 obj.field = "Value";
             "#}),
-        TestAction::assert_eq("map.get(obj)", js_string!("one")),
+        TestAction::assert_eq("map.get(obj)", "one"),
     ]);
 }
 

boa_engine/src/builtins/mod.rs

@@ -870,7 +870,7 @@ impl<'ctx> BuiltInBuilder<'ctx, OrdinaryObject> {
             realm,
             function,
             length: 0,
-            name: js_string!(""),
+            name: js_string!(),
         }
     }
 
@@ -883,7 +883,7 @@ impl<'ctx> BuiltInBuilder<'ctx, OrdinaryObject> {
             object: I::get(realm.intrinsics()),
             kind: Callable {
                 function,
-                name: js_string!(""),
+                name: js_string!(),
                 length: 0,
                 kind: OrdinaryFunction,
                 realm: realm.clone(),
@@ -902,7 +902,7 @@ impl<'ctx> BuiltInBuilder<'ctx, OrdinaryObject> {
             object,
             kind: Callable {
                 function,
-                name: js_string!(""),
+                name: js_string!(),
                 length: 0,
                 kind: OrdinaryFunction,
                 realm: realm.clone(),

boa_engine/src/builtins/number/mod.rs

@@ -677,13 +677,13 @@ impl Number {
         }
 
         if x == -0. {
-            return Ok(JsValue::new(js_string!("0")));
+            return Ok(JsValue::new("0"));
         } else if x.is_nan() {
-            return Ok(JsValue::new(js_string!("NaN")));
+            return Ok(JsValue::new("NaN"));
         } else if x.is_infinite() && x.is_sign_positive() {
-            return Ok(JsValue::new(js_string!("Infinity")));
+            return Ok(JsValue::new("Infinity"));
         } else if x.is_infinite() && x.is_sign_negative() {
-            return Ok(JsValue::new(js_string!("-Infinity")));
+            return Ok(JsValue::new("-Infinity"));
         }
 
         // This is a Optimization from the v8 source code to print values that can fit in a single character

boa_engine/src/builtins/number/tests.rs

@@ -1,11 +1,10 @@
 use crate::{
-    builtins::Number, js_string, run_test_actions, value::AbstractRelation, JsNativeErrorKind,
-    TestAction,
+    builtins::Number, run_test_actions, value::AbstractRelation, JsNativeErrorKind, TestAction,
 };
 
 #[test]
 fn integer_number_primitive_to_number_object() {
-    run_test_actions([TestAction::assert_eq("(100).toString()", js_string!("100"))]);
+    run_test_actions([TestAction::assert_eq("(100).toString()", "100")]);
 }
 
 #[test]
@@ -25,136 +24,115 @@ fn call_number() {
 #[test]
 fn to_exponential() {
     run_test_actions([
-        TestAction::assert_eq("Number().toExponential()", js_string!("0e+0")),
-        TestAction::assert_eq("Number(5).toExponential()", js_string!("5e+0")),
-        TestAction::assert_eq("Number(1.234).toExponential()", js_string!("1.234e+0")),
-        TestAction::assert_eq("Number(1234).toExponential()", js_string!("1.234e+3")),
-        TestAction::assert_eq(
-            "Number('I am also not a number').toExponential()",
-            js_string!("NaN"),
-        ),
-        TestAction::assert_eq("Number('1.23e+2').toExponential()", js_string!("1.23e+2")),
+        TestAction::assert_eq("Number().toExponential()", "0e+0"),
+        TestAction::assert_eq("Number(5).toExponential()", "5e+0"),
+        TestAction::assert_eq("Number(1.234).toExponential()", "1.234e+0"),
+        TestAction::assert_eq("Number(1234).toExponential()", "1.234e+3"),
+        TestAction::assert_eq("Number('I am also not a number').toExponential()", "NaN"),
+        TestAction::assert_eq("Number('1.23e+2').toExponential()", "1.23e+2"),
     ]);
 }
 
 #[test]
 fn to_fixed() {
     run_test_actions([
-        TestAction::assert_eq("Number().toFixed()", js_string!("0")),
-        TestAction::assert_eq("Number('3.456e+4').toFixed()", js_string!("34560")),
-        TestAction::assert_eq("Number('3.456e-4').toFixed()", js_string!("0")),
-        TestAction::assert_eq("Number(5).toFixed()", js_string!("5")),
-        TestAction::assert_eq(
-            "Number('I am also not a number').toFixed()",
-            js_string!("NaN"),
-        ),
-        TestAction::assert_eq("(1.35).toFixed(1)", js_string!("1.4")),
+        TestAction::assert_eq("Number().toFixed()", "0"),
+        TestAction::assert_eq("Number('3.456e+4').toFixed()", "34560"),
+        TestAction::assert_eq("Number('3.456e-4').toFixed()", "0"),
+        TestAction::assert_eq("Number(5).toFixed()", "5"),
+        TestAction::assert_eq("Number('I am also not a number').toFixed()", "NaN"),
+        TestAction::assert_eq("(1.35).toFixed(1)", "1.4"),
         // Test cases from https://source.chromium.org/chromium/chromium/src/+/main:v8/test/mjsunit/number-tostring-func.js;l=157-240;drc=aa3518a0f37245ebe8f062dce97ee492e2a41652
-        TestAction::assert_eq("(NaN).toFixed(2)", js_string!("NaN")),
-        TestAction::assert_eq("(1/0).toFixed(2)", js_string!("Infinity")),
-        TestAction::assert_eq("(-1/0).toFixed(2)", js_string!("-Infinity")),
+        TestAction::assert_eq("(NaN).toFixed(2)", "NaN"),
+        TestAction::assert_eq("(1/0).toFixed(2)", "Infinity"),
+        TestAction::assert_eq("(-1/0).toFixed(2)", "-Infinity"),
         TestAction::assert_eq(
             "(1111111111111111111111).toFixed(8)",
-            js_string!("1.1111111111111111e+21"),
-        ),
-        TestAction::assert_eq("(0.1).toFixed(1)", js_string!("0.1")),
-        TestAction::assert_eq("(0.1).toFixed(2)", js_string!("0.10")),
-        TestAction::assert_eq("(0.1).toFixed(3)", js_string!("0.100")),
-        TestAction::assert_eq("(0.01).toFixed(2)", js_string!("0.01")),
-        TestAction::assert_eq("(0.01).toFixed(3)", js_string!("0.010")),
-        TestAction::assert_eq("(0.01).toFixed(4)", js_string!("0.0100")),
-        TestAction::assert_eq("(0.001).toFixed(2)", js_string!("0.00")),
-        TestAction::assert_eq("(0.001).toFixed(3)", js_string!("0.001")),
-        TestAction::assert_eq("(0.001).toFixed(4)", js_string!("0.0010")),
-        TestAction::assert_eq("(1).toFixed(4)", js_string!("1.0000")),
-        TestAction::assert_eq("(1).toFixed(1)", js_string!("1.0")),
-        TestAction::assert_eq("(1).toFixed(0)", js_string!("1")),
-        TestAction::assert_eq("(12).toFixed(0)", js_string!("12")),
-        TestAction::assert_eq("(1.1).toFixed(0)", js_string!("1")),
-        TestAction::assert_eq("(12.1).toFixed(0)", js_string!("12")),
-        TestAction::assert_eq("(1.12).toFixed(0)", js_string!("1")),
-        TestAction::assert_eq("(12.12).toFixed(0)", js_string!("12")),
-        TestAction::assert_eq("(0.0000006).toFixed(7)", js_string!("0.0000006")),
-        TestAction::assert_eq("(0.00000006).toFixed(8)", js_string!("0.00000006")),
-        TestAction::assert_eq("(0.00000006).toFixed(9)", js_string!("0.000000060")),
-        TestAction::assert_eq("(0.00000006).toFixed(10)", js_string!("0.0000000600")),
-        TestAction::assert_eq("(0).toFixed(0)", js_string!("0")),
-        TestAction::assert_eq("(0).toFixed(1)", js_string!("0.0")),
-        TestAction::assert_eq("(0).toFixed(2)", js_string!("0.00")),
+            "1.1111111111111111e+21",
+        ),
+        TestAction::assert_eq("(0.1).toFixed(1)", "0.1"),
+        TestAction::assert_eq("(0.1).toFixed(2)", "0.10"),
+        TestAction::assert_eq("(0.1).toFixed(3)", "0.100"),
+        TestAction::assert_eq("(0.01).toFixed(2)", "0.01"),
+        TestAction::assert_eq("(0.01).toFixed(3)", "0.010"),
+        TestAction::assert_eq("(0.01).toFixed(4)", "0.0100"),
+        TestAction::assert_eq("(0.001).toFixed(2)", "0.00"),
+        TestAction::assert_eq("(0.001).toFixed(3)", "0.001"),
+        TestAction::assert_eq("(0.001).toFixed(4)", "0.0010"),
+        TestAction::assert_eq("(1).toFixed(4)", "1.0000"),
+        TestAction::assert_eq("(1).toFixed(1)", "1.0"),
+        TestAction::assert_eq("(1).toFixed(0)", "1"),
+        TestAction::assert_eq("(12).toFixed(0)", "12"),
+        TestAction::assert_eq("(1.1).toFixed(0)", "1"),
+        TestAction::assert_eq("(12.1).toFixed(0)", "12"),
+        TestAction::assert_eq("(1.12).toFixed(0)", "1"),
+        TestAction::assert_eq("(12.12).toFixed(0)", "12"),
+        TestAction::assert_eq("(0.0000006).toFixed(7)", "0.0000006"),
+        TestAction::assert_eq("(0.00000006).toFixed(8)", "0.00000006"),
+        TestAction::assert_eq("(0.00000006).toFixed(9)", "0.000000060"),
+        TestAction::assert_eq("(0.00000006).toFixed(10)", "0.0000000600"),
+        TestAction::assert_eq("(0).toFixed(0)", "0"),
+        TestAction::assert_eq("(0).toFixed(1)", "0.0"),
+        TestAction::assert_eq("(0).toFixed(2)", "0.00"),
         TestAction::assert_eq(
             "(-1111111111111111111111).toFixed(8)",
-            js_string!("-1.1111111111111111e+21"),
-        ),
-        TestAction::assert_eq("(-0.1).toFixed(1)", js_string!("-0.1")),
-        TestAction::assert_eq("(-0.1).toFixed(2)", js_string!("-0.10")),
-        TestAction::assert_eq("(-0.1).toFixed(3)", js_string!("-0.100")),
-        TestAction::assert_eq("(-0.01).toFixed(2)", js_string!("-0.01")),
-        TestAction::assert_eq("(-0.01).toFixed(3)", js_string!("-0.010")),
-        TestAction::assert_eq("(-0.01).toFixed(4)", js_string!("-0.0100")),
-        TestAction::assert_eq("(-0.001).toFixed(2)", js_string!("-0.00")),
-        TestAction::assert_eq("(-0.001).toFixed(3)", js_string!("-0.001")),
-        TestAction::assert_eq("(-0.001).toFixed(4)", js_string!("-0.0010")),
-        TestAction::assert_eq("(-1).toFixed(4)", js_string!("-1.0000")),
-        TestAction::assert_eq("(-1).toFixed(1)", js_string!("-1.0")),
-        TestAction::assert_eq("(-1).toFixed(0)", js_string!("-1")),
-        TestAction::assert_eq("(-1.1).toFixed(0)", js_string!("-1")),
-        TestAction::assert_eq("(-12.1).toFixed(0)", js_string!("-12")),
-        TestAction::assert_eq("(-1.12).toFixed(0)", js_string!("-1")),
-        TestAction::assert_eq("(-12.12).toFixed(0)", js_string!("-12")),
-        TestAction::assert_eq("(-0.0000006).toFixed(7)", js_string!("-0.0000006")),
-        TestAction::assert_eq("(-0.00000006).toFixed(8)", js_string!("-0.00000006")),
-        TestAction::assert_eq("(-0.00000006).toFixed(9)", js_string!("-0.000000060")),
-        TestAction::assert_eq("(-0.00000006).toFixed(10)", js_string!("-0.0000000600")),
-        TestAction::assert_eq("(-0).toFixed(0)", js_string!("0")),
-        TestAction::assert_eq("(-0).toFixed(1)", js_string!("0.0")),
-        TestAction::assert_eq("(-0).toFixed(2)", js_string!("0.00")),
-        TestAction::assert_eq("(0.00001).toFixed(5)", js_string!("0.00001")),
+            "-1.1111111111111111e+21",
+        ),
+        TestAction::assert_eq("(-0.1).toFixed(1)", "-0.1"),
+        TestAction::assert_eq("(-0.1).toFixed(2)", "-0.10"),
+        TestAction::assert_eq("(-0.1).toFixed(3)", "-0.100"),
+        TestAction::assert_eq("(-0.01).toFixed(2)", "-0.01"),
+        TestAction::assert_eq("(-0.01).toFixed(3)", "-0.010"),
+        TestAction::assert_eq("(-0.01).toFixed(4)", "-0.0100"),
+        TestAction::assert_eq("(-0.001).toFixed(2)", "-0.00"),
+        TestAction::assert_eq("(-0.001).toFixed(3)", "-0.001"),
+        TestAction::assert_eq("(-0.001).toFixed(4)", "-0.0010"),
+        TestAction::assert_eq("(-1).toFixed(4)", "-1.0000"),
+        TestAction::assert_eq("(-1).toFixed(1)", "-1.0"),
+        TestAction::assert_eq("(-1).toFixed(0)", "-1"),
+        TestAction::assert_eq("(-1.1).toFixed(0)", "-1"),
+        TestAction::assert_eq("(-12.1).toFixed(0)", "-12"),
+        TestAction::assert_eq("(-1.12).toFixed(0)", "-1"),
+        TestAction::assert_eq("(-12.12).toFixed(0)", "-12"),
+        TestAction::assert_eq("(-0.0000006).toFixed(7)", "-0.0000006"),
+        TestAction::assert_eq("(-0.00000006).toFixed(8)", "-0.00000006"),
+        TestAction::assert_eq("(-0.00000006).toFixed(9)", "-0.000000060"),
+        TestAction::assert_eq("(-0.00000006).toFixed(10)", "-0.0000000600"),
+        TestAction::assert_eq("(-0).toFixed(0)", "0"),
+        TestAction::assert_eq("(-0).toFixed(1)", "0.0"),
+        TestAction::assert_eq("(-0).toFixed(2)", "0.00"),
+        TestAction::assert_eq("(0.00001).toFixed(5)", "0.00001"),
         TestAction::assert_eq(
             "(0.0000000000000000001).toFixed(20)",
-            js_string!("0.00000000000000000010"),
-        ),
-        TestAction::assert_eq("(0.00001).toFixed(17)", js_string!("0.00001000000000000")),
-        TestAction::assert_eq("(1).toFixed(17)", js_string!("1.00000000000000000")),
-        TestAction::assert_eq(
-            "(100000000000000128).toFixed(1)",
-            js_string!("100000000000000128.0"),
-        ),
-        TestAction::assert_eq(
-            "(10000000000000128).toFixed(2)",
-            js_string!("10000000000000128.00"),
+            "0.00000000000000000010",
         ),
+        TestAction::assert_eq("(0.00001).toFixed(17)", "0.00001000000000000"),
+        TestAction::assert_eq("(1).toFixed(17)", "1.00000000000000000"),
+        TestAction::assert_eq("(100000000000000128).toFixed(1)", "100000000000000128.0"),
+        TestAction::assert_eq("(10000000000000128).toFixed(2)", "10000000000000128.00"),
         TestAction::assert_eq(
             "(10000000000000128).toFixed(20)",
-            js_string!("10000000000000128.00000000000000000000"),
+            "10000000000000128.00000000000000000000",
         ),
-        TestAction::assert_eq("(-42).toFixed(3)", js_string!("-42.000")),
+        TestAction::assert_eq("(-42).toFixed(3)", "-42.000"),
         TestAction::assert_eq(
             "(-0.0000000000000000001).toFixed(20)",
-            js_string!("-0.00000000000000000010"),
-        ),
-        TestAction::assert_eq(
-            "(0.123123123123123).toFixed(20)",
-            js_string!("0.12312312312312299889"),
-        ),
-        TestAction::assert_eq(
-            "(-1000000000000000128).toFixed()",
-            js_string!("-1000000000000000128"),
-        ),
-        TestAction::assert_eq("(0).toFixed()", js_string!("0")),
-        TestAction::assert_eq(
-            "(1000000000000000128).toFixed()",
-            js_string!("1000000000000000128"),
-        ),
-        TestAction::assert_eq("(1000).toFixed()", js_string!("1000")),
-        TestAction::assert_eq("(0.00001).toFixed()", js_string!("0")),
+            "-0.00000000000000000010",
+        ),
+        TestAction::assert_eq("(0.123123123123123).toFixed(20)", "0.12312312312312299889"),
+        TestAction::assert_eq("(-1000000000000000128).toFixed()", "-1000000000000000128"),
+        TestAction::assert_eq("(0).toFixed()", "0"),
+        TestAction::assert_eq("(1000000000000000128).toFixed()", "1000000000000000128"),
+        TestAction::assert_eq("(1000).toFixed()", "1000"),
+        TestAction::assert_eq("(0.00001).toFixed()", "0"),
         // Test that we round up even when the last digit generated is even.
         // dtoa does not do this in its original form.
-        TestAction::assert_eq("(0.5).toFixed(0)", js_string!("1")),
-        TestAction::assert_eq("(-0.5).toFixed(0)", js_string!("-1")),
-        TestAction::assert_eq("(1.25).toFixed(1)", js_string!("1.3")),
+        TestAction::assert_eq("(0.5).toFixed(0)", "1"),
+        TestAction::assert_eq("(-0.5).toFixed(0)", "-1"),
+        TestAction::assert_eq("(1.25).toFixed(1)", "1.3"),
         // This is bizare, but Spidermonkey and KJS behave the same.
-        TestAction::assert_eq("(234.2040).toFixed(4)", js_string!("234.2040")),
-        TestAction::assert_eq("(234.2040506).toFixed(4)", js_string!("234.2041")),
+        TestAction::assert_eq("(234.2040).toFixed(4)", "234.2040"),
+        TestAction::assert_eq("(234.2040506).toFixed(4)", "234.2041"),
     ]);
 }
 
@@ -162,8 +140,8 @@ fn to_fixed() {
 #[test]
 fn issue_2609() {
     run_test_actions([
-        TestAction::assert_eq("(1.25).toFixed(1)", js_string!("1.3")),
-        TestAction::assert_eq("(1.35).toFixed(1)", js_string!("1.4")),
+        TestAction::assert_eq("(1.25).toFixed(1)", "1.3"),
+        TestAction::assert_eq("(1.35).toFixed(1)", "1.4"),
     ]);
 }
 
@@ -172,10 +150,10 @@ fn to_locale_string() {
     // TODO: We don't actually do any locale checking here
     // To honor the spec we should print numbers according to user locale.
     run_test_actions([
-        TestAction::assert_eq("Number().toLocaleString()", js_string!("0")),
-        TestAction::assert_eq("Number(5).toLocaleString()", js_string!("5")),
-        TestAction::assert_eq("Number('345600').toLocaleString()", js_string!("345600")),
-        TestAction::assert_eq("Number(-25).toLocaleString()", js_string!("-25")),
+        TestAction::assert_eq("Number().toLocaleString()", "0"),
+        TestAction::assert_eq("Number(5).toLocaleString()", "5"),
+        TestAction::assert_eq("Number('345600').toLocaleString()", "345600"),
+        TestAction::assert_eq("Number(-25).toLocaleString()", "-25"),
     ]);
 }
 
@@ -183,21 +161,21 @@ fn to_locale_string() {
 fn to_precision() {
     const ERROR: &str = "precision must be an integer at least 1 and no greater than 100";
     run_test_actions([
-        TestAction::assert_eq("(1/0).toPrecision(3)", js_string!("Infinity")),
-        TestAction::assert_eq("Number().toPrecision()", js_string!("0")),
-        TestAction::assert_eq("Number().toPrecision(undefined)", js_string!("0")),
-        TestAction::assert_eq("(123456789).toPrecision(1)", js_string!("1e+8")),
-        TestAction::assert_eq("(123456789).toPrecision(4)", js_string!("1.235e+8")),
-        TestAction::assert_eq("(123456789).toPrecision(9)", js_string!("123456789")),
-        TestAction::assert_eq("(-123456789).toPrecision(4)", js_string!("-1.235e+8")),
+        TestAction::assert_eq("(1/0).toPrecision(3)", "Infinity"),
+        TestAction::assert_eq("Number().toPrecision()", "0"),
+        TestAction::assert_eq("Number().toPrecision(undefined)", "0"),
+        TestAction::assert_eq("(123456789).toPrecision(1)", "1e+8"),
+        TestAction::assert_eq("(123456789).toPrecision(4)", "1.235e+8"),
+        TestAction::assert_eq("(123456789).toPrecision(9)", "123456789"),
+        TestAction::assert_eq("(-123456789).toPrecision(4)", "-1.235e+8"),
         TestAction::assert_eq(
             "(123456789).toPrecision(50)",
-            js_string!("123456789.00000000000000000000000000000000000000000"),
+            "123456789.00000000000000000000000000000000000000000",
         ),
-        TestAction::assert_eq("(0.1).toPrecision(4)", js_string!("0.1000")),
+        TestAction::assert_eq("(0.1).toPrecision(4)", "0.1000"),
         TestAction::assert_eq(
             "(1/3).toPrecision(60)",
-            js_string!("0.333333333333333314829616256247390992939472198486328125000000"),
+            "0.333333333333333314829616256247390992939472198486328125000000",
         ),
         TestAction::assert_native_error("(1).toPrecision(101)", JsNativeErrorKind::Range, ERROR),
         TestAction::assert_native_error("(1).toPrecision(0)", JsNativeErrorKind::Range, ERROR),
@@ -209,132 +187,90 @@ fn to_precision() {
 #[test]
 fn to_string() {
     run_test_actions([
-        TestAction::assert_eq("Number(NaN).toString()", js_string!("NaN")),
-        TestAction::assert_eq("Number(1/0).toString()", js_string!("Infinity")),
-        TestAction::assert_eq("Number(-1/0).toString()", js_string!("-Infinity")),
-        TestAction::assert_eq("Number(0).toString()", js_string!("0")),
-        TestAction::assert_eq("Number(9).toString()", js_string!("9")),
-        TestAction::assert_eq("Number(90).toString()", js_string!("90")),
-        TestAction::assert_eq("Number(90.12).toString()", js_string!("90.12")),
-        TestAction::assert_eq("Number(0.1).toString()", js_string!("0.1")),
-        TestAction::assert_eq("Number(0.01).toString()", js_string!("0.01")),
-        TestAction::assert_eq("Number(0.0123).toString()", js_string!("0.0123")),
-        TestAction::assert_eq("Number(0.00001).toString()", js_string!("0.00001")),
-        TestAction::assert_eq("Number(0.000001).toString()", js_string!("0.000001")),
-        TestAction::assert_eq("Number(NaN).toString(16)", js_string!("NaN")),
-        TestAction::assert_eq("Number(1/0).toString(16)", js_string!("Infinity")),
-        TestAction::assert_eq("Number(-1/0).toString(16)", js_string!("-Infinity")),
-        TestAction::assert_eq("Number(0).toString(16)", js_string!("0")),
-        TestAction::assert_eq("Number(9).toString(16)", js_string!("9")),
-        TestAction::assert_eq("Number(90).toString(16)", js_string!("5a")),
-        TestAction::assert_eq("Number(90.12).toString(16)", js_string!("5a.1eb851eb852")),
-        TestAction::assert_eq("Number(0.1).toString(16)", js_string!("0.1999999999999a")),
-        TestAction::assert_eq("Number(0.01).toString(16)", js_string!("0.028f5c28f5c28f6")),
-        TestAction::assert_eq(
-            "Number(0.0123).toString(16)",
-            js_string!("0.032617c1bda511a"),
-        ),
+        TestAction::assert_eq("Number(NaN).toString()", "NaN"),
+        TestAction::assert_eq("Number(1/0).toString()", "Infinity"),
+        TestAction::assert_eq("Number(-1/0).toString()", "-Infinity"),
+        TestAction::assert_eq("Number(0).toString()", "0"),
+        TestAction::assert_eq("Number(9).toString()", "9"),
+        TestAction::assert_eq("Number(90).toString()", "90"),
+        TestAction::assert_eq("Number(90.12).toString()", "90.12"),
+        TestAction::assert_eq("Number(0.1).toString()", "0.1"),
+        TestAction::assert_eq("Number(0.01).toString()", "0.01"),
+        TestAction::assert_eq("Number(0.0123).toString()", "0.0123"),
+        TestAction::assert_eq("Number(0.00001).toString()", "0.00001"),
+        TestAction::assert_eq("Number(0.000001).toString()", "0.000001"),
+        TestAction::assert_eq("Number(NaN).toString(16)", "NaN"),
+        TestAction::assert_eq("Number(1/0).toString(16)", "Infinity"),
+        TestAction::assert_eq("Number(-1/0).toString(16)", "-Infinity"),
+        TestAction::assert_eq("Number(0).toString(16)", "0"),
+        TestAction::assert_eq("Number(9).toString(16)", "9"),
+        TestAction::assert_eq("Number(90).toString(16)", "5a"),
+        TestAction::assert_eq("Number(90.12).toString(16)", "5a.1eb851eb852"),
+        TestAction::assert_eq("Number(0.1).toString(16)", "0.1999999999999a"),
+        TestAction::assert_eq("Number(0.01).toString(16)", "0.028f5c28f5c28f6"),
+        TestAction::assert_eq("Number(0.0123).toString(16)", "0.032617c1bda511a"),
         TestAction::assert_eq(
             "Number(111111111111111111111).toString(16)",
-            js_string!("605f9f6dd18bc8000"),
+            "605f9f6dd18bc8000",
         ),
         TestAction::assert_eq(
             "Number(1111111111111111111111).toString(16)",
-            js_string!("3c3bc3a4a2f75c0000"),
+            "3c3bc3a4a2f75c0000",
         ),
         TestAction::assert_eq(
             "Number(11111111111111111111111).toString(16)",
-            js_string!("25a55a46e5da9a00000"),
-        ),
-        TestAction::assert_eq(
-            "Number(0.00001).toString(16)",
-            js_string!("0.0000a7c5ac471b4788"),
-        ),
-        TestAction::assert_eq(
-            "Number(0.000001).toString(16)",
-            js_string!("0.000010c6f7a0b5ed8d"),
-        ),
-        TestAction::assert_eq(
-            "Number(0.0000001).toString(16)",
-            js_string!("0.000001ad7f29abcaf48"),
-        ),
-        TestAction::assert_eq(
-            "Number(0.00000012).toString(16)",
-            js_string!("0.000002036565348d256"),
-        ),
-        TestAction::assert_eq(
-            "Number(0.000000123).toString(16)",
-            js_string!("0.0000021047ee22aa466"),
-        ),
-        TestAction::assert_eq(
-            "Number(0.00000001).toString(16)",
-            js_string!("0.0000002af31dc4611874"),
-        ),
-        TestAction::assert_eq(
-            "Number(0.000000012).toString(16)",
-            js_string!("0.000000338a23b87483be"),
+            "25a55a46e5da9a00000",
         ),
+        TestAction::assert_eq("Number(0.00001).toString(16)", "0.0000a7c5ac471b4788"),
+        TestAction::assert_eq("Number(0.000001).toString(16)", "0.000010c6f7a0b5ed8d"),
+        TestAction::assert_eq("Number(0.0000001).toString(16)", "0.000001ad7f29abcaf48"),
+        TestAction::assert_eq("Number(0.00000012).toString(16)", "0.000002036565348d256"),
+        TestAction::assert_eq("Number(0.000000123).toString(16)", "0.0000021047ee22aa466"),
+        TestAction::assert_eq("Number(0.00000001).toString(16)", "0.0000002af31dc4611874"),
+        TestAction::assert_eq("Number(0.000000012).toString(16)", "0.000000338a23b87483be"),
         TestAction::assert_eq(
             "Number(0.0000000123).toString(16)",
-            js_string!("0.00000034d3fe36aaa0a2"),
+            "0.00000034d3fe36aaa0a2",
         ),
-        TestAction::assert_eq("Number(-0).toString(16)", js_string!("0")),
-        TestAction::assert_eq("Number(-9).toString(16)", js_string!("-9")),
+        TestAction::assert_eq("Number(-0).toString(16)", "0"),
+        TestAction::assert_eq("Number(-9).toString(16)", "-9"),
         //
-        TestAction::assert_eq("Number(-90).toString(16)", js_string!("-5a")),
-        TestAction::assert_eq("Number(-90.12).toString(16)", js_string!("-5a.1eb851eb852")),
-        TestAction::assert_eq("Number(-0.1).toString(16)", js_string!("-0.1999999999999a")),
-        TestAction::assert_eq(
-            "Number(-0.01).toString(16)",
-            js_string!("-0.028f5c28f5c28f6"),
-        ),
-        TestAction::assert_eq(
-            "Number(-0.0123).toString(16)",
-            js_string!("-0.032617c1bda511a"),
-        ),
+        TestAction::assert_eq("Number(-90).toString(16)", "-5a"),
+        TestAction::assert_eq("Number(-90.12).toString(16)", "-5a.1eb851eb852"),
+        TestAction::assert_eq("Number(-0.1).toString(16)", "-0.1999999999999a"),
+        TestAction::assert_eq("Number(-0.01).toString(16)", "-0.028f5c28f5c28f6"),
+        TestAction::assert_eq("Number(-0.0123).toString(16)", "-0.032617c1bda511a"),
         TestAction::assert_eq(
             "Number(-111111111111111111111).toString(16)",
-            js_string!("-605f9f6dd18bc8000"),
+            "-605f9f6dd18bc8000",
         ),
         TestAction::assert_eq(
             "Number(-1111111111111111111111).toString(16)",
-            js_string!("-3c3bc3a4a2f75c0000"),
+            "-3c3bc3a4a2f75c0000",
         ),
         TestAction::assert_eq(
             "Number(-11111111111111111111111).toString(16)",
-            js_string!("-25a55a46e5da9a00000"),
-        ),
-        TestAction::assert_eq(
-            "Number(-0.00001).toString(16)",
-            js_string!("-0.0000a7c5ac471b4788"),
-        ),
-        TestAction::assert_eq(
-            "Number(-0.000001).toString(16)",
-            js_string!("-0.000010c6f7a0b5ed8d"),
-        ),
-        TestAction::assert_eq(
-            "Number(-0.0000001).toString(16)",
-            js_string!("-0.000001ad7f29abcaf48"),
-        ),
-        TestAction::assert_eq(
-            "Number(-0.00000012).toString(16)",
-            js_string!("-0.000002036565348d256"),
+            "-25a55a46e5da9a00000",
         ),
+        TestAction::assert_eq("Number(-0.00001).toString(16)", "-0.0000a7c5ac471b4788"),
+        TestAction::assert_eq("Number(-0.000001).toString(16)", "-0.000010c6f7a0b5ed8d"),
+        TestAction::assert_eq("Number(-0.0000001).toString(16)", "-0.000001ad7f29abcaf48"),
+        TestAction::assert_eq("Number(-0.00000012).toString(16)", "-0.000002036565348d256"),
         TestAction::assert_eq(
             "Number(-0.000000123).toString(16)",
-            js_string!("-0.0000021047ee22aa466"),
+            "-0.0000021047ee22aa466",
         ),
         TestAction::assert_eq(
             "Number(-0.00000001).toString(16)",
-            js_string!("-0.0000002af31dc4611874"),
+            "-0.0000002af31dc4611874",
         ),
         TestAction::assert_eq(
             "Number(-0.000000012).toString(16)",
-            js_string!("-0.000000338a23b87483be"),
+            "-0.000000338a23b87483be",
         ),
         TestAction::assert_eq(
             "Number(-0.0000000123).toString(16)",
-            js_string!("-0.00000034d3fe36aaa0a2"),
+            "-0.00000034d3fe36aaa0a2",
         ),
     ]);
 }
@@ -342,26 +278,26 @@ fn to_string() {
 #[test]
 fn num_to_string_exponential() {
     run_test_actions([
-        TestAction::assert_eq("(0).toString()", js_string!("0")),
-        TestAction::assert_eq("(-0).toString()", js_string!("0")),
+        TestAction::assert_eq("(0).toString()", "0"),
+        TestAction::assert_eq("(-0).toString()", "0"),
         TestAction::assert_eq(
             "(111111111111111111111).toString()",
-            js_string!("111111111111111110000"),
+            "111111111111111110000",
         ),
         TestAction::assert_eq(
             "(1111111111111111111111).toString()",
-            js_string!("1.1111111111111111e+21"),
+            "1.1111111111111111e+21",
         ),
         TestAction::assert_eq(
             "(11111111111111111111111).toString()",
-            js_string!("1.1111111111111111e+22"),
-        ),
-        TestAction::assert_eq("(0.0000001).toString()", js_string!("1e-7")),
-        TestAction::assert_eq("(0.00000012).toString()", js_string!("1.2e-7")),
-        TestAction::assert_eq("(0.000000123).toString()", js_string!("1.23e-7")),
-        TestAction::assert_eq("(0.00000001).toString()", js_string!("1e-8")),
-        TestAction::assert_eq("(0.000000012).toString()", js_string!("1.2e-8")),
-        TestAction::assert_eq("(0.0000000123).toString()", js_string!("1.23e-8")),
+            "1.1111111111111111e+22",
+        ),
+        TestAction::assert_eq("(0.0000001).toString()", "1e-7"),
+        TestAction::assert_eq("(0.00000012).toString()", "1.2e-7"),
+        TestAction::assert_eq("(0.000000123).toString()", "1.23e-7"),
+        TestAction::assert_eq("(0.00000001).toString()", "1e-8"),
+        TestAction::assert_eq("(0.000000012).toString()", "1.2e-8"),
+        TestAction::assert_eq("(0.0000000123).toString()", "1.23e-8"),
     ]);
 }
 
@@ -640,13 +576,7 @@ fn number_is_safe_integer() {
 #[test]
 fn issue_2717() {
     run_test_actions([
-        TestAction::assert_eq(
-            "(0.1600057092765239).toString(36)",
-            js_string!("0.5rd85dm1ixq"),
-        ),
-        TestAction::assert_eq(
-            "(0.23046743672210102).toString(36)",
-            js_string!("0.8aoosla2phj"),
-        ),
+        TestAction::assert_eq("(0.1600057092765239).toString(36)", "0.5rd85dm1ixq"),
+        TestAction::assert_eq("(0.23046743672210102).toString(36)", "0.8aoosla2phj"),
     ]);
 }

boa_engine/src/builtins/object/mod.rs

@@ -793,11 +793,11 @@ impl Object {
     ) -> JsResult<JsValue> {
         // 1. If the this value is undefined, return "[object Undefined]".
         if this.is_undefined() {
-            return Ok(js_string!("[object Undefined]").into());
+            return Ok("[object Undefined]".into());
         }
         // 2. If the this value is null, return "[object Null]".
         if this.is_null() {
-            return Ok(js_string!("[object Null]").into());
+            return Ok("[object Null]".into());
         }
         // 3. Let O be ! ToObject(this value).
         let o = this.to_object(context).expect("toObject cannot fail here");

boa_engine/src/builtins/object/tests.rs

@@ -1,4 +1,4 @@
-use crate::{js_string, run_test_actions, JsNativeErrorKind, JsValue, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, JsValue, TestAction};
 use indoc::indoc;
 
 #[test]
@@ -137,21 +137,18 @@ fn object_to_string() {
             "#}),
         TestAction::assert_eq(
             "Object.prototype.toString.call(undefined)",
-            js_string!("[object Undefined]"),
+            "[object Undefined]",
         ),
-        TestAction::assert_eq(
-            "Object.prototype.toString.call(null)",
-            js_string!("[object Null]"),
-        ),
-        TestAction::assert_eq("[].toString()", js_string!("[object Array]")),
-        TestAction::assert_eq("(() => {}).toString()", js_string!("[object Function]")),
-        TestAction::assert_eq("(new Error('')).toString()", js_string!("[object Error]")),
-        TestAction::assert_eq("Boolean().toString()", js_string!("[object Boolean]")),
-        TestAction::assert_eq("Number(42).toString()", js_string!("[object Number]")),
-        TestAction::assert_eq("String('boa').toString()", js_string!("[object String]")),
-        TestAction::assert_eq("(new Date()).toString()", js_string!("[object Date]")),
-        TestAction::assert_eq("/boa/.toString()", js_string!("[object RegExp]")),
-        TestAction::assert_eq("({}).toString()", js_string!("[object Object]")),
+        TestAction::assert_eq("Object.prototype.toString.call(null)", "[object Null]"),
+        TestAction::assert_eq("[].toString()", "[object Array]"),
+        TestAction::assert_eq("(() => {}).toString()", "[object Function]"),
+        TestAction::assert_eq("(new Error('')).toString()", "[object Error]"),
+        TestAction::assert_eq("Boolean().toString()", "[object Boolean]"),
+        TestAction::assert_eq("Number(42).toString()", "[object Number]"),
+        TestAction::assert_eq("String('boa').toString()", "[object String]"),
+        TestAction::assert_eq("(new Date()).toString()", "[object Date]"),
+        TestAction::assert_eq("/boa/.toString()", "[object RegExp]"),
+        TestAction::assert_eq("({}).toString()", "[object Object]"),
     ]);
 }
 
@@ -163,7 +160,7 @@ fn define_symbol_property() {
                 let sym = Symbol("key");
                 Object.defineProperty(obj, sym, { value: "val" });
             "#}),
-        TestAction::assert_eq("obj[sym]", js_string!("val")),
+        TestAction::assert_eq("obj[sym]", "val"),
     ]);
 }
 

boa_engine/src/builtins/promise/mod.rs

@@ -9,7 +9,6 @@ use crate::{
     context::intrinsics::{Intrinsics, StandardConstructor, StandardConstructors},
     error::JsNativeError,
     job::{JobCallback, NativeJob},
-    js_string,
     native_function::NativeFunction,
     object::{
         internal_methods::get_prototype_from_constructor, FunctionObjectBuilder, JsFunction,
@@ -901,12 +900,8 @@ impl Promise {
                         let obj = JsObject::with_object_proto(context.intrinsics());
 
                         // 10. Perform ! CreateDataPropertyOrThrow(obj, "status", "fulfilled").
-                        obj.create_data_property_or_throw(
-                            "status",
-                            js_string!("fulfilled"),
-                            context,
-                        )
-                        .expect("cannot fail per spec");
+                        obj.create_data_property_or_throw("status", "fulfilled", context)
+                            .expect("cannot fail per spec");
 
                         // 11. Perform ! CreateDataPropertyOrThrow(obj, "value", x).
                         obj.create_data_property_or_throw(
@@ -991,12 +986,8 @@ impl Promise {
                         let obj = JsObject::with_object_proto(context.intrinsics());
 
                         // 10. Perform ! CreateDataPropertyOrThrow(obj, "status", "rejected").
-                        obj.create_data_property_or_throw(
-                            "status",
-                            js_string!("rejected"),
-                            context,
-                        )
-                        .expect("cannot fail per spec");
+                        obj.create_data_property_or_throw("status", "rejected", context)
+                            .expect("cannot fail per spec");
 
                         // 11. Perform ! CreateDataPropertyOrThrow(obj, "reason", x).
                         obj.create_data_property_or_throw(

boa_engine/src/builtins/reflect/tests.rs

@@ -1,4 +1,4 @@
-use crate::{js_string, run_test_actions, JsValue, TestAction};
+use crate::{run_test_actions, JsValue, TestAction};
 use indoc::indoc;
 
 #[test]
@@ -68,10 +68,7 @@ fn get_prototype_of() {
                 function F() { this.p = 42 };
                 let f = new F();
             "#}),
-        TestAction::assert_eq(
-            "Reflect.getPrototypeOf(f).constructor.name",
-            js_string!("F"),
-        ),
+        TestAction::assert_eq("Reflect.getPrototypeOf(f).constructor.name", "F"),
     ]);
 }
 
@@ -134,6 +131,6 @@ fn set_prototype_of() {
                 let obj = {}
                 Reflect.setPrototypeOf(obj, F);
             "#}),
-        TestAction::assert_eq("Reflect.getPrototypeOf(obj).name", js_string!("F")),
+        TestAction::assert_eq("Reflect.getPrototypeOf(obj).name", "F"),
     ]);
 }

boa_engine/src/builtins/regexp/mod.rs

@@ -652,7 +652,7 @@ impl RegExp {
                     this,
                     &JsValue::new(context.intrinsics().constructors().regexp().prototype()),
                 ) {
-                    Ok(JsValue::new(js_string!("(?:)")))
+                    Ok(JsValue::new("(?:)"))
                 } else {
                     Err(JsNativeError::typ()
                         .with_message("RegExp.prototype.source method called on incompatible value")
@@ -680,7 +680,7 @@ impl RegExp {
     /// [spec]: https://tc39.es/ecma262/#sec-escaperegexppattern
     fn escape_pattern(src: &JsString, _flags: &JsString) -> JsValue {
         if src.is_empty() {
-            js_string!("(?:)").into()
+            "(?:)".into()
         } else {
             let mut s = Vec::with_capacity(src.len());
             let mut buf = [0; 2];
@@ -1850,7 +1850,7 @@ impl RegExp {
                 .expect("already checked that the object was a RegExp") = regexp;
         }
 
-        this.set(utf16!("lastIndex"), 0, true, context)?;
+        this.set("lastIndex", 0, true, context)?;
 
         Ok(this.into())
     }

boa_engine/src/builtins/regexp/regexp_string_iterator.rs

@@ -14,7 +14,6 @@ use crate::{
     builtins::{iterable::create_iter_result_object, regexp, BuiltInBuilder, IntrinsicObject},
     context::intrinsics::Intrinsics,
     error::JsNativeError,
-    js_string,
     object::{JsObject, ObjectData},
     property::Attribute,
     realm::Realm,
@@ -55,7 +54,7 @@ impl IntrinsicObject for RegExpStringIterator {
             .static_method(Self::next, "next", 0)
             .static_property(
                 JsSymbol::to_string_tag(),
-                js_string!("RegExp String Iterator"),
+                "RegExp String Iterator",
                 Attribute::CONFIGURABLE,
             )
             .build();

boa_engine/src/builtins/regexp/tests.rs

@@ -35,7 +35,7 @@ fn species() {
         // return-value
         TestAction::assert("Object.is(accessor.call(thisVal), thisVal)"),
         // symbol-species-name
-        TestAction::assert_eq("name.value", js_string!("get [Symbol.species]")),
+        TestAction::assert_eq("name.value", "get [Symbol.species]"),
         TestAction::assert("!name.enumerable"),
         TestAction::assert("!name.writable"),
         TestAction::assert("name.configurable"),
@@ -63,7 +63,7 @@ fn flags() {
         TestAction::assert("!re_gi.dotAll"),
         TestAction::assert("!re_gi.unicode"),
         TestAction::assert("!re_gi.sticky"),
-        TestAction::assert_eq("re_gi.flags", js_string!("gi")),
+        TestAction::assert_eq("re_gi.flags", "gi"),
         //
         TestAction::assert("!re_sm.global"),
         TestAction::assert("!re_sm.ignoreCase"),
@@ -71,7 +71,7 @@ fn flags() {
         TestAction::assert("re_sm.dotAll"),
         TestAction::assert("!re_sm.unicode"),
         TestAction::assert("!re_sm.sticky"),
-        TestAction::assert_eq("re_sm.flags", js_string!("ms")),
+        TestAction::assert_eq("re_sm.flags", "ms"),
         //
         TestAction::assert("!re_u.global"),
         TestAction::assert("!re_u.ignoreCase"),
@@ -79,7 +79,7 @@ fn flags() {
         TestAction::assert("!re_u.dotAll"),
         TestAction::assert("re_u.unicode"),
         TestAction::assert("!re_u.sticky"),
-        TestAction::assert_eq("re_u.flags", js_string!("u")),
+        TestAction::assert_eq("re_u.flags", "u"),
     ]);
 }
 
@@ -112,7 +112,7 @@ fn exec() {
         TestAction::assert_eq("result.index", 4),
         TestAction::assert_eq(
             "result.input",
-            js_string!("The Quick Brown Fox Jumps Over The Lazy Dog"),
+            "The Quick Brown Fox Jumps Over The Lazy Dog",
         ),
     ]);
 }
@@ -136,8 +136,8 @@ fn no_panic_on_parse_fail() {
 #[test]
 fn to_string() {
     run_test_actions([
-        TestAction::assert_eq("(new RegExp('a+b+c')).toString()", js_string!("/a+b+c/")),
-        TestAction::assert_eq("(new RegExp('bar', 'g')).toString()", js_string!("/bar/g")),
+        TestAction::assert_eq("(new RegExp('a+b+c')).toString()", "/a+b+c/"),
+        TestAction::assert_eq("(new RegExp('bar', 'g')).toString()", "/bar/g"),
         TestAction::assert_eq(r"(new RegExp('\\n', 'g')).toString()", js_string!(r"/\n/g")),
         TestAction::assert_eq(r"/\n/g.toString()", js_string!(r"/\n/g")),
         TestAction::assert_eq(r"/,\;/.toString()", js_string!(r"/,\;/")),
@@ -162,7 +162,7 @@ fn search() {
         TestAction::assert("!length.writable"),
         TestAction::assert("length.configurable"),
         // name
-        TestAction::assert_eq("name.value", js_string!("[Symbol.search]")),
+        TestAction::assert_eq("name.value", "[Symbol.search]"),
         TestAction::assert("!name.enumerable"),
         TestAction::assert("!name.writable"),
         TestAction::assert("name.configurable"),

boa_engine/src/builtins/set/set_iterator.rs

@@ -12,7 +12,6 @@ use crate::{
     },
     context::intrinsics::Intrinsics,
     error::JsNativeError,
-    js_string,
     object::{JsObject, ObjectData},
     property::{Attribute, PropertyNameKind},
     realm::Realm,
@@ -52,7 +51,7 @@ impl IntrinsicObject for SetIterator {
             .static_method(Self::next, "next", 0)
             .static_property(
                 JsSymbol::to_string_tag(),
-                js_string!("Set Iterator"),
+                "Set Iterator",
                 Attribute::CONFIGURABLE,
             )
             .build();

boa_engine/src/builtins/string/mod.rs

@@ -2091,7 +2091,7 @@ impl String {
         let s = o.to_string(context)?;
 
         // 4. Let rx be ? RegExpCreate(regexp, "g").
-        let rx = RegExp::create(regexp, &JsValue::new(js_string!("g")), context)?;
+        let rx = RegExp::create(regexp, &JsValue::new("g"), context)?;
 
         // 5. Return ? Invoke(rx, @@matchAll, « S »).
         rx.invoke(JsSymbol::match_all(), &[JsValue::new(s)], context)

boa_engine/src/builtins/string/string_iterator.rs

@@ -46,7 +46,7 @@ impl IntrinsicObject for StringIterator {
             .static_method(Self::next, "next", 0)
             .static_property(
                 JsSymbol::to_string_tag(),
-                js_string!("String Iterator"),
+                "String Iterator",
                 Attribute::CONFIGURABLE,
             )
             .build();

boa_engine/src/builtins/string/tests.rs

@@ -56,12 +56,9 @@ fn concat() {
             "#}),
         TestAction::assert_eq(
             "hello.concat(world, nice)",
-            js_string!("Hello, world! Have a nice day."),
-        ),
-        TestAction::assert_eq(
-            "hello + world + nice",
-            js_string!("Hello, world! Have a nice day."),
+            "Hello, world! Have a nice day.",
         ),
+        TestAction::assert_eq("hello + world + nice", "Hello, world! Have a nice day."),
     ]);
 }
 
@@ -72,10 +69,7 @@ fn generic_concat() {
                 Number.prototype.concat = String.prototype.concat;
                 let number = new Number(100);
             "#}),
-        TestAction::assert_eq(
-            "number.concat(' - 50', ' = 50')",
-            js_string!("100 - 50 = 50"),
-        ),
+        TestAction::assert_eq("number.concat(' - 50', ' = 50')", "100 - 50 = 50"),
     ]);
 }
 
@@ -100,8 +94,8 @@ fn repeat() {
         TestAction::assert_eq("empty.repeat(1)", js_string!()),
         TestAction::assert_eq("en.repeat(0)", js_string!()),
         TestAction::assert_eq("zh.repeat(0)", js_string!()),
-        TestAction::assert_eq("en.repeat(1)", js_string!("english")),
-        TestAction::assert_eq("zh.repeat(2)", js_string!("中文中文")),
+        TestAction::assert_eq("en.repeat(1)", "english"),
+        TestAction::assert_eq("zh.repeat(2)", "中文中文"),
     ]);
 }
 
@@ -140,9 +134,9 @@ fn repeat_generic() {
     run_test_actions([
         TestAction::run("Number.prototype.repeat = String.prototype.repeat;"),
         TestAction::assert_eq("(0).repeat(0)", js_string!()),
-        TestAction::assert_eq("(1).repeat(1)", js_string!("1")),
-        TestAction::assert_eq("(1).repeat(5)", js_string!("11111")),
-        TestAction::assert_eq("(12).repeat(3)", js_string!("121212")),
+        TestAction::assert_eq("(1).repeat(1)", "1"),
+        TestAction::assert_eq("(1).repeat(5)", "11111"),
+        TestAction::assert_eq("(12).repeat(3)", "121212"),
     ]);
 }
 
@@ -152,7 +146,7 @@ fn replace() {
         indoc! {r#"
             "abc".replace("a", "2")
         "#},
-        js_string!("2bc"),
+        "2bc",
     )]);
 }
 
@@ -162,7 +156,7 @@ fn replace_no_match() {
         indoc! {r#"
             "abc".replace(/d/, "$&$&")
         "#},
-        js_string!("abc"),
+        "abc",
     )]);
 }
 
@@ -172,7 +166,7 @@ fn replace_with_capture_groups() {
         indoc! {r#"
             "John Smith".replace(/(\w+)\s(\w+)/, '$2, $1')
         "#},
-        js_string!("Smith, John"),
+        "Smith, John",
     )]);
 }
 
@@ -183,7 +177,7 @@ fn replace_with_tenth_capture_group() {
             var re = /(\d)(\d)(\d)(\d)(\d)(\d)(\d)(\d)(\d)(\d)/;
             "0123456789".replace(re, '$10')
         "#},
-        js_string!("9"),
+        "9",
     )]);
 }
 
@@ -199,11 +193,11 @@ fn replace_substitutions() {
             var end = a.replace(re, " $' ");
             var no_sub = a.replace(re, " $_ ");
         "#}),
-        TestAction::assert_eq("a.replace(re, \" $$ \")", js_string!("one $ three")),
-        TestAction::assert_eq("a.replace(re, \"$&$&\")", js_string!("one two  two three")),
-        TestAction::assert_eq("a.replace(re, \" $` \")", js_string!("one one three")),
-        TestAction::assert_eq("a.replace(re, \" $' \")", js_string!("one three three")),
-        TestAction::assert_eq("a.replace(re, \" $_ \")", js_string!("one $_ three")),
+        TestAction::assert_eq("a.replace(re, \" $$ \")", "one $ three"),
+        TestAction::assert_eq("a.replace(re, \"$&$&\")", "one two  two three"),
+        TestAction::assert_eq("a.replace(re, \" $` \")", "one one three"),
+        TestAction::assert_eq("a.replace(re, \" $' \")", "one three three"),
+        TestAction::assert_eq("a.replace(re, \" $_ \")", "one $_ three"),
     ]);
 }
 
@@ -222,11 +216,11 @@ fn replace_with_function() {
             "#}),
         TestAction::assert_eq(
             "\"ecmascript is cool\".replace(/c(o)(o)(l)/, replacer)",
-            js_string!("ecmascript is awesome!"),
+            "ecmascript is awesome!",
         ),
-        TestAction::assert_eq("p1", js_string!("o")),
-        TestAction::assert_eq("p2", js_string!("o")),
-        TestAction::assert_eq("p3", js_string!("l")),
+        TestAction::assert_eq("p1", "o"),
+        TestAction::assert_eq("p2", "o"),
+        TestAction::assert_eq("p3", "l"),
         TestAction::assert_eq("length", 14),
     ]);
 }
@@ -329,7 +323,7 @@ fn match_all_one() {
             )
         "#}),
         TestAction::assert_eq("m1.value.index", 0),
-        TestAction::assert_eq("m1.value.input", js_string!("test1test2")),
+        TestAction::assert_eq("m1.value.input", "test1test2"),
         TestAction::assert_eq("m1.value.groups", JsValue::undefined()),
         TestAction::assert(indoc! {r#"
             arrayEquals(
@@ -338,7 +332,7 @@ fn match_all_one() {
             )
         "#}),
         TestAction::assert_eq("m2.value.index", 5),
-        TestAction::assert_eq("m2.value.input", js_string!("test1test2")),
+        TestAction::assert_eq("m2.value.input", "test1test2"),
         TestAction::assert_eq("m2.value.groups", JsValue::undefined()),
         TestAction::assert_eq("m3.value", JsValue::undefined()),
     ]);
@@ -366,7 +360,7 @@ fn match_all_two() {
             )
         "#}),
         TestAction::assert_eq("m1.value.index", 6),
-        TestAction::assert_eq("m1.value.input", js_string!("table football, foosball")),
+        TestAction::assert_eq("m1.value.input", "table football, foosball"),
         TestAction::assert_eq("m1.value.groups", JsValue::undefined()),
         TestAction::assert(indoc! {r#"
             arrayEquals(
@@ -375,7 +369,7 @@ fn match_all_two() {
             )
         "#}),
         TestAction::assert_eq("m2.value.index", 16),
-        TestAction::assert_eq("m2.value.input", js_string!("table football, foosball")),
+        TestAction::assert_eq("m2.value.input", "table football, foosball"),
         TestAction::assert_eq("m2.value.groups", JsValue::undefined()),
         TestAction::assert_eq("m3.value", JsValue::undefined()),
     ]);
@@ -401,7 +395,7 @@ fn test_match() {
         TestAction::assert_eq("result1.index", 4),
         TestAction::assert_eq(
             "result1.input",
-            js_string!("The Quick Brown Fox Jumps Over The Lazy Dog"),
+            "The Quick Brown Fox Jumps Over The Lazy Dog",
         ),
         TestAction::assert(indoc! {r#"
                 arrayEquals(
@@ -418,7 +412,7 @@ fn test_match() {
         TestAction::assert_eq("result3.index", 0),
         TestAction::assert_eq(
             "result3.input",
-            js_string!("The Quick Brown Fox Jumps Over The Lazy Dog"),
+            "The Quick Brown Fox Jumps Over The Lazy Dog",
         ),
         TestAction::assert(indoc! {r#"
                 arrayEquals(
@@ -432,30 +426,30 @@ fn test_match() {
 #[test]
 fn trim() {
     run_test_actions([
-        TestAction::assert_eq(r"'Hello'.trim()", js_string!("Hello")),
-        TestAction::assert_eq(r"' \nHello'.trim()", js_string!("Hello")),
-        TestAction::assert_eq(r"'Hello \n\r'.trim()", js_string!("Hello")),
-        TestAction::assert_eq(r"' Hello '.trim()", js_string!("Hello")),
+        TestAction::assert_eq(r"'Hello'.trim()", "Hello"),
+        TestAction::assert_eq(r"' \nHello'.trim()", "Hello"),
+        TestAction::assert_eq(r"'Hello \n\r'.trim()", "Hello"),
+        TestAction::assert_eq(r"' Hello '.trim()", "Hello"),
     ]);
 }
 
 #[test]
 fn trim_start() {
     run_test_actions([
-        TestAction::assert_eq(r"'Hello'.trimStart()", js_string!("Hello")),
-        TestAction::assert_eq(r"' \nHello'.trimStart()", js_string!("Hello")),
-        TestAction::assert_eq(r"'Hello \n\r'.trimStart()", js_string!("Hello \n\r")),
-        TestAction::assert_eq(r"' Hello '.trimStart()", js_string!("Hello ")),
+        TestAction::assert_eq(r"'Hello'.trimStart()", "Hello"),
+        TestAction::assert_eq(r"' \nHello'.trimStart()", "Hello"),
+        TestAction::assert_eq(r"'Hello \n\r'.trimStart()", "Hello \n\r"),
+        TestAction::assert_eq(r"' Hello '.trimStart()", "Hello "),
     ]);
 }
 
 #[test]
 fn trim_end() {
     run_test_actions([
-        TestAction::assert_eq(r"'Hello'.trimEnd()", js_string!("Hello")),
-        TestAction::assert_eq(r"' \nHello'.trimEnd()", js_string!(" \nHello")),
-        TestAction::assert_eq(r"'Hello \n\r'.trimEnd()", js_string!("Hello")),
-        TestAction::assert_eq(r"' Hello '.trimEnd()", js_string!(" Hello")),
+        TestAction::assert_eq(r"'Hello'.trimEnd()", "Hello"),
+        TestAction::assert_eq(r"' \nHello'.trimEnd()", " \nHello"),
+        TestAction::assert_eq(r"'Hello \n\r'.trimEnd()", "Hello"),
+        TestAction::assert_eq(r"' Hello '.trimEnd()", " Hello"),
     ]);
 }
 
@@ -578,7 +572,7 @@ fn split_with_symbol_split_method() {
                 sep_a[Symbol.split] = function(s, limit) { return s + limit.toString(); };
                 'hello'.split(sep_a, 10)
             "#},
-            js_string!("hello10"),
+            "hello10",
         ),
         TestAction::assert(indoc! {r#"
                 let sep_b = {};
@@ -752,10 +746,10 @@ fn last_index_non_integer_position_argument() {
 fn char_at() {
     run_test_actions([
         TestAction::assert_eq("'abc'.charAt(-1)", js_string!()),
-        TestAction::assert_eq("'abc'.charAt(1)", js_string!("b")),
+        TestAction::assert_eq("'abc'.charAt(1)", "b"),
         TestAction::assert_eq("'abc'.charAt(9)", js_string!()),
-        TestAction::assert_eq("'abc'.charAt()", js_string!("a")),
-        TestAction::assert_eq("'abc'.charAt(null)", js_string!("a")),
+        TestAction::assert_eq("'abc'.charAt()", "a"),
+        TestAction::assert_eq("'abc'.charAt(null)", "a"),
         TestAction::assert_eq(r"'\uDBFF'.charAt(0)", js_string!(&[0xDBFFu16])),
     ]);
 }
@@ -794,10 +788,10 @@ fn code_point_at() {
 #[test]
 fn slice() {
     run_test_actions([
-        TestAction::assert_eq("'abc'.slice()", js_string!("abc")),
-        TestAction::assert_eq("'abc'.slice(1)", js_string!("bc")),
-        TestAction::assert_eq("'abc'.slice(-1)", js_string!("c")),
-        TestAction::assert_eq("'abc'.slice(0, 9)", js_string!("abc")),
+        TestAction::assert_eq("'abc'.slice()", "abc"),
+        TestAction::assert_eq("'abc'.slice(1)", "bc"),
+        TestAction::assert_eq("'abc'.slice(-1)", "c"),
+        TestAction::assert_eq("'abc'.slice(0, 9)", "abc"),
         TestAction::assert_eq("'abc'.slice(9, 10)", js_string!()),
     ]);
 }
@@ -844,8 +838,8 @@ fn unicode_iter() {
 fn string_get_property() {
     run_test_actions([
         TestAction::assert_eq("'abc'[-1]", JsValue::undefined()),
-        TestAction::assert_eq("'abc'[1]", js_string!("b")),
-        TestAction::assert_eq("'abc'[2]", js_string!("c")),
+        TestAction::assert_eq("'abc'[1]", "b"),
+        TestAction::assert_eq("'abc'[2]", "c"),
         TestAction::assert_eq("'abc'[3]", JsValue::undefined()),
         TestAction::assert_eq("'abc'['foo']", JsValue::undefined()),
         TestAction::assert_eq("'😀'[0]", js_string!(&[0xD83D])),
@@ -866,9 +860,9 @@ fn search() {
 fn from_code_point() {
     // Taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint
     run_test_actions([
-        TestAction::assert_eq("String.fromCodePoint(42)", js_string!("*")),
-        TestAction::assert_eq("String.fromCodePoint(65, 90)", js_string!("AZ")),
-        TestAction::assert_eq("String.fromCodePoint(0x404)", js_string!("Є")),
+        TestAction::assert_eq("String.fromCodePoint(42)", "*"),
+        TestAction::assert_eq("String.fromCodePoint(65, 90)", "AZ"),
+        TestAction::assert_eq("String.fromCodePoint(0x404)", "Є"),
         TestAction::assert_eq(
             "String.fromCodePoint(0x2f804)",
             js_string!(&[0xD87E, 0xDC04]),
@@ -882,10 +876,7 @@ fn from_code_point() {
             "String.fromCharCode(0xD800, 0xD8FF)",
             js_string!(&[0xD800, 0xD8FF]),
         ),
-        TestAction::assert_eq(
-            "String.fromCodePoint(9731, 9733, 9842, 0x4F60)",
-            js_string!("☃★♲你"),
-        ),
+        TestAction::assert_eq("String.fromCodePoint(9731, 9733, 9842, 0x4F60)", "☃★♲你"),
         TestAction::assert_native_error(
             "String.fromCodePoint('_')",
             JsNativeErrorKind::Range,

boa_engine/src/builtins/symbol/tests.rs

@@ -1,4 +1,4 @@
-use crate::{js_string, run_test_actions, JsValue, TestAction};
+use crate::{run_test_actions, JsValue, TestAction};
 use indoc::indoc;
 
 #[test]
@@ -12,7 +12,7 @@ fn call_symbol_and_check_return_type() {
 fn print_symbol_expect_description() {
     run_test_actions([TestAction::assert_eq(
         "String(Symbol('Hello'))",
-        js_string!("Symbol(Hello)"),
+        "Symbol(Hello)",
     )]);
 }
 

boa_engine/src/builtins/temporal/calendar/tests.rs

@@ -1,11 +1,11 @@
-use crate::{js_string, run_test_actions, TestAction};
+use crate::{run_test_actions, TestAction};
 
 #[test]
 fn calendar_constructor() {
     // TODO: Add other BuiltinCalendars
     run_test_actions([TestAction::assert_eq(
         "new Temporal.Calendar('iso8601').id",
-        js_string!("iso8601"),
+        "iso8601",
     )]);
 }
 

boa_engine/src/builtins/temporal/duration/record.rs

@@ -9,7 +9,7 @@ use crate::{
             round_number_to_increment, to_temporal_date, NS_PER_DAY,
         },
     },
-    js_string, Context, JsNativeError, JsObject, JsResult, JsValue,
+    Context, JsNativeError, JsObject, JsResult, JsValue,
 };
 
 use super::super::{
@@ -1121,11 +1121,7 @@ impl DurationRecord {
                 // n. Let untilOptions be OrdinaryObjectCreate(null).
                 let until_options = JsObject::with_null_proto();
                 // o. Perform ! CreateDataPropertyOrThrow(untilOptions, "largestUnit", "month").
-                until_options.create_data_property_or_throw(
-                    "largestUnit",
-                    js_string!("month"),
-                    context,
-                )?;
+                until_options.create_data_property_or_throw("largestUnit", "month", context)?;
 
                 // p. Let untilResult be ? CalendarDateUntil(calendar, relativeTo, newRelativeTo, untilOptions, dateUntil).
                 let until_result = calendar::calendar_date_until(
@@ -1161,11 +1157,7 @@ impl DurationRecord {
                     // v. Set untilOptions to OrdinaryObjectCreate(null).
                     let until_options = JsObject::with_null_proto();
                     // vi. Perform ! CreateDataPropertyOrThrow(untilOptions, "largestUnit", "month").
-                    until_options.create_data_property_or_throw(
-                        "largestUnit",
-                        js_string!("month"),
-                        context,
-                    )?;
+                    until_options.create_data_property_or_throw("largestUnit", "month", context)?;
                     // vii. Set untilResult to ? CalendarDateUntil(calendar, relativeTo, newRelativeTo, untilOptions, dateUntil).
                     let until_result = calendar::calendar_date_until(
                         calendar,

boa_engine/src/builtins/temporal/plain_date/mod.rs

@@ -219,7 +219,7 @@ impl BuiltInConstructor for PlainDate {
         let iso_year = super::to_integer_with_truncation(args.get_or_undefined(0), context)?;
         let iso_month = super::to_integer_with_truncation(args.get_or_undefined(1), context)?;
         let iso_day = super::to_integer_with_truncation(args.get_or_undefined(2), context)?;
-        let default_calendar = JsValue::from(js_string!("iso8601"));
+        let default_calendar = JsValue::from("iso8601");
         let calendar_like = args.get(3).unwrap_or(&default_calendar);
 
         let iso = IsoDateRecord::new(iso_year, iso_month, iso_day);

boa_engine/src/builtins/temporal/plain_year_month/mod.rs

@@ -3,7 +3,6 @@
 use crate::{
     builtins::{BuiltInBuilder, BuiltInConstructor, BuiltInObject, IntrinsicObject},
     context::intrinsics::{Intrinsics, StandardConstructor, StandardConstructors},
-    js_string,
     object::{internal_methods::get_prototype_from_constructor, ObjectData},
     property::Attribute,
     realm::Realm,
@@ -158,12 +157,7 @@ impl BuiltInConstructor for PlainYearMonth {
 
         // 7. Return ? CreateTemporalYearMonth(y, m, calendar, ref, NewTarget).
         let record = IsoDateRecord::new(y, m, ref_day);
-        create_temporal_year_month(
-            record,
-            JsValue::from(js_string!("iso8601")),
-            Some(new_target),
-            context,
-        )
+        create_temporal_year_month(record, JsValue::from("iso8601"), Some(new_target), context)
     }
 }
 

boa_engine/src/builtins/temporal/tests.rs

@@ -1,5 +1,5 @@
 use super::date_equations::{epoch_time_to_month_in_year, mathematical_in_leap_year};
-use crate::{js_string, run_test_actions, JsValue, TestAction};
+use crate::{run_test_actions, JsValue, TestAction};
 
 // Temporal Object tests.
 
@@ -9,9 +9,9 @@ fn temporal_object() {
     run_test_actions([
         TestAction::assert_eq(
             "Object.prototype.toString.call(Temporal)",
-            js_string!("[object Temporal]"),
+            "[object Temporal]",
         ),
-        TestAction::assert_eq("String(Temporal)", js_string!("[object Temporal]")),
+        TestAction::assert_eq("String(Temporal)", "[object Temporal]"),
         TestAction::assert_eq("Object.keys(Temporal).length === 0", true),
     ]);
 }
@@ -23,7 +23,7 @@ fn now_object() {
         TestAction::assert_eq("Object.isExtensible(Temporal.Now)", true),
         TestAction::assert_eq(
             "Object.prototype.toString.call(Temporal.Now)",
-            js_string!("[object Temporal.Now]"),
+            "[object Temporal.Now]",
         ),
         TestAction::assert_eq(
             "Object.getPrototypeOf(Temporal.Now) === Object.prototype",

boa_engine/src/builtins/weak/weak_ref.rs

@@ -4,7 +4,6 @@ use boa_profiler::Profiler;
 use crate::{
     builtins::{BuiltInBuilder, BuiltInConstructor, BuiltInObject, IntrinsicObject},
     context::intrinsics::{Intrinsics, StandardConstructor, StandardConstructors},
-    js_string,
     object::{internal_methods::get_prototype_from_constructor, JsObject, ObjectData},
     property::Attribute,
     realm::Realm,
@@ -36,7 +35,7 @@ impl IntrinsicObject for WeakRef {
         BuiltInBuilder::from_standard_constructor::<Self>(realm)
             .property(
                 JsSymbol::to_string_tag(),
-                js_string!("WeakRef"),
+                "WeakRef",
                 Attribute::CONFIGURABLE,
             )
             .method(Self::deref, "deref", 0)

boa_engine/src/context/mod.rs

@@ -80,7 +80,7 @@ thread_local! {
 ///     .property("x", 12, Attribute::READONLY)
 ///     .build();
 /// context
-///     .register_global_property(js_string!("arg"), arg, Attribute::all())
+///     .register_global_property("arg", arg, Attribute::all())
 ///     .expect("property shouldn't exist");
 ///
 /// let value = context.eval(Source::from_bytes("test(arg)")).unwrap();

boa_engine/src/module/mod.rs

@@ -46,7 +46,6 @@ use boa_profiler::Profiler;
 use crate::{
     builtins::promise::{PromiseCapability, PromiseState},
     environments::DeclarativeEnvironment,
-    js_string,
     object::{JsObject, JsPromise, ObjectData},
     realm::Realm,
     Context, HostDefined, JsError, JsResult, JsString, JsValue, NativeFunction,
@@ -615,7 +614,7 @@ impl ModuleNamespace {
         // 8. Create own properties of M corresponding to the definitions in 28.3.
         let namespace = context.intrinsics().templates().namespace().create(
             ObjectData::module_namespace(Self { module, exports }),
-            vec![js_string!("Module").into()],
+            vec!["Module".into()],
         );
 
         // 9. Set module.[[Namespace]] to M.

boa_engine/src/object/builtins/jsdate.rs

@@ -32,7 +32,7 @@ use crate::{
 ///
 ///     assert_eq!(
 ///         date.to_date_string(context)?,
-///         JsValue::from(js_string!("Mon Dec 04 1995"))
+///         JsValue::from("Mon Dec 04 1995")
 ///     );
 ///
 ///     Ok(())

boa_engine/src/object/builtins/jsmap.rs

@@ -29,8 +29,8 @@ use std::ops::Deref;
 /// let map = JsMap::new(context);
 ///
 /// // Set key-value pairs for the `JsMap`.
-/// map.set(js_string!("Key-1"), js_string!("Value-1"), context)?;
-/// map.set(js_string!("Key-2"), 10, context)?;
+/// map.set("Key-1", "Value-1", context)?;
+/// map.set("Key-2", 10, context)?;
 ///
 /// assert_eq!(map.get_size(context)?, 2.into());
 /// # Ok(())
@@ -52,8 +52,8 @@ use std::ops::Deref;
 ///
 /// // Create a `[key, value]` pair of JsValues
 /// let vec_one: Vec<JsValue> = vec![
-///     js_string!("first-key").into(),
-///     js_string!("first-value").into()
+///     "first-key".into(),
+///     "first-value".into()
 /// ];
 ///
 /// // We create an push our `[key, value]` pair onto our array as a `JsArray`
@@ -63,8 +63,8 @@ use std::ops::Deref;
 /// let js_iterable_map = JsMap::from_js_iterable(&js_array.into(), context)?;
 ///
 /// assert_eq!(
-///     js_iterable_map.get(js_string!("first-key"), context)?,
-///     js_string!("first-value").into()
+///     js_iterable_map.get("first-key", context)?,
+///     "first-value".into()
 /// );
 ///
 /// # Ok(())
@@ -111,8 +111,8 @@ impl JsMap {
     ///
     /// // Create a `[key, value]` pair of JsValues and add it to the `JsArray` as a `JsArray`
     /// let vec_one: Vec<JsValue> = vec![
-    ///     js_string!("first-key").into(),
-    ///     js_string!("first-value").into()
+    ///     "first-key".into(),
+    ///     "first-value".into()
     /// ];
     /// js_array.push(JsArray::from_iter(vec_one, context), context)?;
     ///
@@ -228,12 +228,12 @@ impl JsMap {
     /// # let context = &mut Context::default();
     /// let js_map = JsMap::new(context);
     ///
-    /// js_map.set(js_string!("foo"), js_string!("bar"), context)?;
+    /// js_map.set("foo", "bar", context)?;
     /// js_map.set(2, 4, context)?;
     ///
     /// assert_eq!(
-    ///     js_map.get(js_string!("foo"), context)?,
-    ///     js_string!("bar").into()
+    ///     js_map.get("foo", context)?,
+    ///     "bar".into()
     /// );
     /// assert_eq!(js_map.get(2, context)?, 4.into());
     /// # Ok(())
@@ -264,7 +264,7 @@ impl JsMap {
     /// # let context = &mut Context::default();
     /// let js_map = JsMap::new(context);
     ///
-    /// js_map.set(js_string!("foo"), js_string!("bar"), context)?;
+    /// js_map.set("foo", "bar", context)?;
     ///
     /// let map_size = js_map.get_size(context)?;
     ///
@@ -289,14 +289,14 @@ impl JsMap {
     /// # fn main() -> JsResult<()> {
     /// # let context = &mut Context::default();
     /// let js_map = JsMap::new(context);
-    /// js_map.set(js_string!("foo"), js_string!("bar"), context)?;
-    /// js_map.set(js_string!("hello"), js_string!("world"), context)?;
+    /// js_map.set("foo", "bar", context)?;
+    /// js_map.set("hello", "world", context)?;
     ///
-    /// js_map.delete(js_string!("foo"), context)?;
+    /// js_map.delete("foo", context)?;
     ///
     /// assert_eq!(js_map.get_size(context)?, 1.into());
     /// assert_eq!(
-    ///     js_map.get(js_string!("foo"), context)?,
+    ///     js_map.get("foo", context)?,
     ///     JsValue::undefined()
     /// );
     /// # Ok(())
@@ -321,11 +321,11 @@ impl JsMap {
     /// # fn main() -> JsResult<()> {
     /// # let context = &mut Context::default();
     /// let js_map = JsMap::new(context);
-    /// js_map.set(js_string!("foo"), js_string!("bar"), context)?;
+    /// js_map.set("foo", "bar", context)?;
     ///
-    /// let retrieved_value = js_map.get(js_string!("foo"), context)?;
+    /// let retrieved_value = js_map.get("foo", context)?;
     ///
-    /// assert_eq!(retrieved_value, js_string!("bar").into());
+    /// assert_eq!(retrieved_value, "bar".into());
     /// # Ok(())
     /// # }
     /// ```
@@ -348,8 +348,8 @@ impl JsMap {
     /// # fn main() -> JsResult<()> {
     /// # let context = &mut Context::default();
     /// let js_map = JsMap::new(context);
-    /// js_map.set(js_string!("foo"), js_string!("bar"), context)?;
-    /// js_map.set(js_string!("hello"), js_string!("world"), context)?;
+    /// js_map.set("foo", "bar", context)?;
+    /// js_map.set("hello", "world", context)?;
     ///
     /// js_map.clear(context)?;
     ///
@@ -374,9 +374,9 @@ impl JsMap {
     /// # fn main() -> JsResult<()> {
     /// # let context = &mut Context::default();
     /// let js_map = JsMap::new(context);
-    /// js_map.set(js_string!("foo"), js_string!("bar"), context)?;
+    /// js_map.set("foo", "bar", context)?;
     ///
-    /// let has_key = js_map.has(js_string!("foo"), context)?;
+    /// let has_key = js_map.has("foo", context)?;
     ///
     /// assert_eq!(has_key, true.into());
     /// # Ok(())

boa_engine/src/object/builtins/jspromise.rs

@@ -35,7 +35,7 @@ use boa_gc::{Finalize, Gc, GcRefCell, Trace};
 /// let context = &mut Context::default();
 ///
 /// context.register_global_property(
-///     js_string!("finally"),
+///     "finally",
 ///     false,
 ///     Attribute::all(),
 /// );

boa_engine/src/object/mod.rs

@@ -2622,7 +2622,7 @@ impl<'realm> FunctionObjectBuilder<'realm> {
 ///     .property(1, 1, Attribute::all())
 ///     .function(
 ///         NativeFunction::from_fn_ptr(|_, _, _| Ok(JsValue::undefined())),
-///         js_string!("func"),
+///         "func",
 ///         0,
 ///     )
 ///     .build();

boa_engine/src/tests/control_flow/loops.rs

@@ -1,4 +1,4 @@
-use crate::{js_string, run_test_actions, JsNativeErrorKind, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, TestAction};
 use indoc::indoc;
 
 #[test]
@@ -87,7 +87,7 @@ fn for_loop() {
                     b
                 }
             "#},
-            js_string!("hello"),
+            "hello",
         ),
         TestAction::assert_eq(
             indoc! {r#"
@@ -192,7 +192,7 @@ fn try_break_finally_edge_cases() {
         a + b
     "#;
 
-    run_test_actions([TestAction::assert_eq(scenario, js_string!("foobar"))]);
+    run_test_actions([TestAction::assert_eq(scenario, "foobar")]);
 }
 
 #[test]
@@ -228,7 +228,7 @@ fn try_break_labels() {
         }
     "#;
 
-    run_test_actions([TestAction::assert_eq(scenario, js_string!("finally! :)"))]);
+    run_test_actions([TestAction::assert_eq(scenario, "finally! :)")]);
 }
 
 #[test]
@@ -268,10 +268,10 @@ fn break_nested_labels_loops_and_try() {
 
     run_test_actions([
         TestAction::run(scenario),
-        TestAction::assert_eq("nestedLabels(true)", js_string!("foobar broke-foo")),
+        TestAction::assert_eq("nestedLabels(true)", "foobar broke-foo"),
         TestAction::assert_eq(
             "nestedLabels(false)",
-            js_string!("foobar broke-bar broke-spacer broke-foo"),
+            "foobar broke-bar broke-spacer broke-foo",
         ),
     ]);
 }
@@ -376,7 +376,7 @@ fn break_environment_gauntlet() {
         }
     "#;
 
-    run_test_actions([TestAction::assert_eq(scenario, js_string!("5601try_block"))]);
+    run_test_actions([TestAction::assert_eq(scenario, "5601try_block")]);
 }
 
 #[test]
@@ -707,7 +707,7 @@ fn for_loop_break_label() {
             }
             str
         "#},
-        js_string!("01"),
+        "01",
     )]);
 }
 
@@ -822,7 +822,7 @@ fn for_in_break_label() {
             }
             str
         "#},
-        js_string!("0"),
+        "0",
     )]);
 }
 
@@ -843,6 +843,6 @@ fn for_in_continue_label() {
             }
             str
         "#},
-        js_string!("00"),
+        "00",
     )]);
 }

boa_engine/src/tests/control_flow/mod.rs

@@ -1,7 +1,7 @@
 use indoc::indoc;
 mod loops;
 
-use crate::{js_string, run_test_actions, JsNativeErrorKind, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, TestAction};
 
 #[test]
 fn test_invalid_break() {
@@ -381,7 +381,7 @@ fn string_switch() {
 
             a;
         "#},
-        js_string!("world"),
+        "world",
     )]);
 }
 
@@ -418,13 +418,13 @@ fn bigger_switch_example() {
                     return b;
                 }
             "#}),
-        TestAction::assert_eq("f(0)", js_string!("Mon")),
-        TestAction::assert_eq("f(1)", js_string!("Tue")),
-        TestAction::assert_eq("f(2)", js_string!("Wed")),
-        TestAction::assert_eq("f(3)", js_string!("Thurs")),
-        TestAction::assert_eq("f(4)", js_string!("Fri")),
-        TestAction::assert_eq("f(5)", js_string!("Sat")),
-        TestAction::assert_eq("f(6)", js_string!("Sun")),
+        TestAction::assert_eq("f(0)", "Mon"),
+        TestAction::assert_eq("f(1)", "Tue"),
+        TestAction::assert_eq("f(2)", "Wed"),
+        TestAction::assert_eq("f(3)", "Thurs"),
+        TestAction::assert_eq("f(4)", "Fri"),
+        TestAction::assert_eq("f(5)", "Sat"),
+        TestAction::assert_eq("f(6)", "Sun"),
     ]);
 }
 
@@ -440,7 +440,7 @@ fn break_labelled_if_statement() {
             }
             result
         "#},
-        js_string!("foo"),
+        "foo",
     )]);
 }
 
@@ -458,6 +458,6 @@ fn break_labelled_try_statement() {
             }
             result
         "#},
-        js_string!("foo"),
+        "foo",
     )]);
 }

boa_engine/src/tests/env.rs

@@ -1,6 +1,6 @@
 use indoc::indoc;
 
-use crate::{js_string, run_test_actions, JsNativeErrorKind, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, TestAction};
 
 #[test]
 // https://github.com/boa-dev/boa/issues/2317
@@ -15,7 +15,7 @@ fn fun_block_eval_2317() {
                     return y + x;
                 })("arg");
             "#},
-            js_string!("arginner"),
+            "arginner",
         ),
         TestAction::assert_eq(
             indoc! {r#"
@@ -26,7 +26,7 @@ fn fun_block_eval_2317() {
                     return y + x;
                 })();
             "#},
-            js_string!("defaultinner"),
+            "defaultinner",
         ),
     ]);
 }

boa_engine/src/tests/function.rs

@@ -1,4 +1,4 @@
-use crate::{js_string, run_test_actions, JsNativeErrorKind, JsValue, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, JsValue, TestAction};
 use indoc::indoc;
 
 #[test]
@@ -24,7 +24,7 @@ fn property_accessor_member_expression_dot_notation_on_function() {
             function asd () {};
             asd.name;
         "#},
-        js_string!("asd"),
+        "asd",
     )]);
 }
 
@@ -35,7 +35,7 @@ fn property_accessor_member_expression_bracket_notation_on_function() {
             function asd () {};
             asd['name'];
         "#},
-        js_string!("asd"),
+        "asd",
     )]);
 }
 
@@ -62,7 +62,7 @@ fn early_return() {
                 }
                 outer_fnct()
             "#},
-            js_string!("outer"),
+            "outer",
         ),
     ]);
 }
@@ -78,8 +78,8 @@ fn should_set_this_value() {
 
                 var bar = new Foo();
             "#}),
-        TestAction::assert_eq("bar.a", js_string!("a")),
-        TestAction::assert_eq("bar.b", js_string!("b")),
+        TestAction::assert_eq("bar.a", "a"),
+        TestAction::assert_eq("bar.b", "b"),
     ]);
 }
 

boa_engine/src/tests/mod.rs

@@ -8,7 +8,7 @@ mod operators;
 mod promise;
 mod spread;
 
-use crate::{js_string, run_test_actions, JsNativeErrorKind, JsValue, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, JsValue, TestAction};
 
 #[test]
 fn length_correct_value_on_string_literal() {
@@ -355,7 +355,7 @@ fn multiline_str_concat() {
                     'world';
             a
         "#},
-        js_string!("hello world"),
+        "hello world",
     )]);
 }
 
@@ -479,7 +479,7 @@ fn template_literal() {
             let a = 10;
             `result: ${a} and ${a+10}`;
         "#},
-        js_string!("result: 10 and 20"),
+        "result: 10 and 20",
     )]);
 }
 

boa_engine/src/tests/operators.rs

@@ -1,19 +1,16 @@
-use crate::{js_string, run_test_actions, JsNativeErrorKind, JsValue, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, JsValue, TestAction};
 use indoc::indoc;
 
 #[test]
 fn property_accessor_member_expression_dot_notation_on_string_literal() {
-    run_test_actions([TestAction::assert_eq(
-        "typeof 'asd'.matchAll",
-        js_string!("function"),
-    )]);
+    run_test_actions([TestAction::assert_eq("typeof 'asd'.matchAll", "function")]);
 }
 
 #[test]
 fn property_accessor_member_expression_bracket_notation_on_string_literal() {
     run_test_actions([TestAction::assert_eq(
         "typeof 'asd'['matchAll']",
-        js_string!("function"),
+        "function",
     )]);
 }
 
@@ -197,15 +194,15 @@ fn unary_operations_on_this() {
 #[test]
 fn typeofs() {
     run_test_actions([
-        TestAction::assert_eq("typeof String()", js_string!("string")),
-        TestAction::assert_eq("typeof 5", js_string!("number")),
-        TestAction::assert_eq("typeof 0.5", js_string!("number")),
-        TestAction::assert_eq("typeof undefined", js_string!("undefined")),
-        TestAction::assert_eq("typeof true", js_string!("boolean")),
-        TestAction::assert_eq("typeof null", js_string!("object")),
-        TestAction::assert_eq("typeof {}", js_string!("object")),
-        TestAction::assert_eq("typeof Symbol()", js_string!("symbol")),
-        TestAction::assert_eq("typeof function(){}", js_string!("function")),
+        TestAction::assert_eq("typeof String()", "string"),
+        TestAction::assert_eq("typeof 5", "number"),
+        TestAction::assert_eq("typeof 0.5", "number"),
+        TestAction::assert_eq("typeof undefined", "undefined"),
+        TestAction::assert_eq("typeof true", "boolean"),
+        TestAction::assert_eq("typeof null", "object"),
+        TestAction::assert_eq("typeof {}", "object"),
+        TestAction::assert_eq("typeof Symbol()", "symbol"),
+        TestAction::assert_eq("typeof function(){}", "function"),
     ]);
 }
 
@@ -248,7 +245,7 @@ fn unary_void() {
                 const b = void test() + '';
                 a + b
             "#},
-            js_string!("42undefined"),
+            "42undefined",
         ),
     ]);
 }
@@ -494,10 +491,7 @@ fn logical_assignment() {
 
 #[test]
 fn conditional_op() {
-    run_test_actions([TestAction::assert_eq(
-        "1 === 2 ? 'a' : 'b'",
-        js_string!("b"),
-    )]);
+    run_test_actions([TestAction::assert_eq("1 === 2 ? 'a' : 'b'", "b")]);
 }
 
 #[test]

boa_engine/src/tests/spread.rs

@@ -1,4 +1,4 @@
-use crate::{js_string, run_test_actions, JsNativeErrorKind, JsValue, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, JsValue, TestAction};
 use indoc::indoc;
 
 #[test]
@@ -26,7 +26,7 @@ fn spread_with_arguments() {
                 var result = foo(...a);
             "#}),
         TestAction::assert_eq("result[0]", 1),
-        TestAction::assert_eq("result[1]", js_string!("test")),
+        TestAction::assert_eq("result[1]", "test"),
         TestAction::assert_eq("result[2]", 3),
         TestAction::assert_eq("result[3]", 4),
     ]);
@@ -131,7 +131,7 @@ fn spread_with_new() {
             }
             f('message').m;
         "#},
-        js_string!("message"),
+        "message",
     )]);
 }
 
@@ -147,6 +147,6 @@ fn spread_with_call() {
             }
             g('message');
         "#},
-        js_string!("message"),
+        "message",
     )]);
 }

boa_engine/src/value/conversions/mod.rs

@@ -7,6 +7,14 @@ use super::{JsBigInt, JsObject, JsString, JsSymbol, JsValue, Profiler};
 mod serde_json;
 pub(super) mod try_from_js;
 
+impl From<&str> for JsValue {
+    fn from(value: &str) -> Self {
+        let _timer = Profiler::global().start_event("From<&str>", "value");
+
+        Self::String(JsString::from(value))
+    }
+}
+
 impl From<JsString> for JsValue {
     fn from(value: JsString) -> Self {
         let _timer = Profiler::global().start_event("From<JsString>", "value");

boa_engine/src/value/conversions/serde_json.rs

@@ -181,7 +181,7 @@ mod tests {
 
     use crate::object::JsArray;
     use crate::JsValue;
-    use crate::{js_string, run_test_actions, TestAction};
+    use crate::{run_test_actions, TestAction};
 
     #[test]
     fn json_conversions() {
@@ -209,7 +209,7 @@ mod tests {
 
             let value = JsValue::from_json(&json, ctx).unwrap();
             let obj = value.as_object().unwrap();
-            assert_eq!(obj.get("name", ctx).unwrap(), js_string!("John Doe").into());
+            assert_eq!(obj.get("name", ctx).unwrap(), "John Doe".into());
             assert_eq!(obj.get("age", ctx).unwrap(), 43_i32.into());
             assert_eq!(obj.get("minor", ctx).unwrap(), false.into());
             assert_eq!(obj.get("adult", ctx).unwrap(), true.into());
@@ -223,7 +223,7 @@ mod tests {
                 let phones = phones.as_object().unwrap();
 
                 let arr = JsArray::from_object(phones.clone()).unwrap();
-                assert_eq!(arr.at(0, ctx).unwrap(), js_string!("+44 1234567").into());
+                assert_eq!(arr.at(0, ctx).unwrap(), "+44 1234567".into());
                 assert_eq!(arr.at(1, ctx).unwrap(), JsValue::from(-45_i32));
                 assert!(arr.at(2, ctx).unwrap().is_object());
                 assert_eq!(arr.at(3, ctx).unwrap(), true.into());

boa_engine/src/value/mod.rs

@@ -19,7 +19,6 @@ use crate::{
         Number,
     },
     error::JsNativeError,
-    js_string,
     object::{JsObject, ObjectData},
     property::{PropertyDescriptor, PropertyKey},
     symbol::JsSymbol,
@@ -367,9 +366,9 @@ impl JsValue {
                 //     1. Assert: preferredType is number.
                 //     2. Let hint be "number".
                 let hint = match preferred_type {
-                    PreferredType::Default => js_string!("default"),
-                    PreferredType::String => js_string!("string"),
-                    PreferredType::Number => js_string!("number"),
+                    PreferredType::Default => "default",
+                    PreferredType::String => "string",
+                    PreferredType::Number => "number",
                 }
                 .into();
 
@@ -983,21 +982,22 @@ impl JsValue {
     #[must_use]
     pub fn js_type_of(&self) -> JsString {
         match *self {
-            Self::Rational(_) | Self::Integer(_) => js_string!("number"),
-            Self::String(_) => js_string!("string"),
-            Self::Boolean(_) => js_string!("boolean"),
-            Self::Symbol(_) => js_string!("symbol"),
-            Self::Null => js_string!("object"),
-            Self::Undefined => js_string!("undefined"),
-            Self::BigInt(_) => js_string!("bigint"),
+            Self::Rational(_) | Self::Integer(_) => "number",
+            Self::String(_) => "string",
+            Self::Boolean(_) => "boolean",
+            Self::Symbol(_) => "symbol",
+            Self::Null => "object",
+            Self::Undefined => "undefined",
+            Self::BigInt(_) => "bigint",
             Self::Object(ref object) => {
                 if object.is_callable() {
-                    js_string!("function")
+                    "function"
                 } else {
-                    js_string!("object")
+                    "object"
                 }
             }
         }
+        .into()
     }
 
     /// Abstract operation `IsArray ( argument )`

boa_engine/src/value/tests.rs

@@ -26,9 +26,9 @@ fn get_set_field() {
     run_test_actions([TestAction::assert_context(|ctx| {
         let obj = &JsObject::with_object_proto(ctx.intrinsics());
         // Create string and convert it to a Value
-        let s = JsValue::new(js_string!("bar"));
-        obj.set(js_string!("foo"), s, false, ctx).unwrap();
-        obj.get(js_string!("foo"), ctx).unwrap() == JsValue::new(js_string!("bar"))
+        let s = JsValue::new("bar");
+        obj.set("foo", s, false, ctx).unwrap();
+        obj.get("foo", ctx).unwrap() == JsValue::new("bar")
     })]);
 }
 
@@ -197,9 +197,9 @@ fn float_display() {
 #[test]
 fn string_length_is_not_enumerable() {
     run_test_actions([TestAction::assert_context(|ctx| {
-        let object = JsValue::new(js_string!("foo")).to_object(ctx).unwrap();
+        let object = JsValue::new("foo").to_object(ctx).unwrap();
         let length_desc = object
-            .__get_own_property__(&js_string!("length").into(), ctx)
+            .__get_own_property__(&"length".into(), ctx)
             .unwrap()
             .unwrap();
         !length_desc.expect_enumerable()
@@ -210,9 +210,9 @@ fn string_length_is_not_enumerable() {
 fn string_length_is_in_utf16_codeunits() {
     run_test_actions([TestAction::assert_context(|ctx| {
         // 😀 is one Unicode code point, but 2 UTF-16 code units
-        let object = JsValue::new(js_string!("😀")).to_object(ctx).unwrap();
+        let object = JsValue::new("😀").to_object(ctx).unwrap();
         let length_desc = object
-            .__get_own_property__(&js_string!("length").into(), ctx)
+            .__get_own_property__(&"length".into(), ctx)
             .unwrap()
             .unwrap();
         length_desc
@@ -230,17 +230,14 @@ fn add_number_and_number() {
 
 #[test]
 fn add_number_and_string() {
-    run_test_actions([TestAction::assert_eq(
-        "1 + \" + 2 = 3\"",
-        js_string!("1 + 2 = 3"),
-    )]);
+    run_test_actions([TestAction::assert_eq("1 + \" + 2 = 3\"", "1 + 2 = 3")]);
 }
 
 #[test]
 fn add_string_and_string() {
     run_test_actions([TestAction::assert_eq(
         "\"Hello\" + \", world\"",
-        js_string!("Hello, world"),
+        "Hello, world",
     )]);
 }
 
@@ -253,7 +250,7 @@ fn add_number_object_and_number() {
 fn add_number_object_and_string_object() {
     run_test_actions([TestAction::assert_eq(
         "new Number(10) + new String(\"0\")",
-        js_string!("100"),
+        "100",
     )]);
 }
 
@@ -436,9 +433,7 @@ fn to_integer_or_infinity() {
             IntegerOrInfinity::Integer(11)
         );
         assert_eq!(
-            JsValue::new(js_string!("12"))
-                .to_integer_or_infinity(ctx)
-                .unwrap(),
+            JsValue::new("12").to_integer_or_infinity(ctx).unwrap(),
             IntegerOrInfinity::Integer(12)
         );
         assert_eq!(
@@ -456,8 +451,8 @@ fn test_accessors() {
                 let a = { get b() { return "c" }, set b(value) { arr = arr.concat([value]) }} ;
                 a.b = "a";
             "#}),
-        TestAction::assert_eq("a.b", js_string!("c")),
-        TestAction::assert_eq("arr[0]", js_string!("a")),
+        TestAction::assert_eq("a.b", "c"),
+        TestAction::assert_eq("arr[0]", "a"),
     ]);
 }
 
@@ -678,10 +673,7 @@ fn to_string() {
         assert_eq!(&JsValue::undefined().to_string(ctx).unwrap(), "undefined");
         assert_eq!(&JsValue::new(55).to_string(ctx).unwrap(), "55");
         assert_eq!(&JsValue::new(55.0).to_string(ctx).unwrap(), "55");
-        assert_eq!(
-            &JsValue::new(js_string!("hello")).to_string(ctx).unwrap(),
-            "hello"
-        );
+        assert_eq!(&JsValue::new("hello").to_string(ctx).unwrap(), "hello");
     })]);
 }
 
@@ -692,7 +684,7 @@ fn to_bigint() {
         assert!(JsValue::undefined().to_bigint(ctx).is_err());
         assert!(JsValue::new(55).to_bigint(ctx).is_err());
         assert!(JsValue::new(10.0).to_bigint(ctx).is_err());
-        assert!(JsValue::new(js_string!("100")).to_bigint(ctx).is_ok());
+        assert!(JsValue::new("100").to_bigint(ctx).is_ok());
     })]);
 }
 
@@ -725,7 +717,7 @@ mod cyclic_conversions {
                 let a = [b, b];
                 JSON.stringify(a)
             "#},
-            js_string!("[[],[]]"),
+            "[[],[]]",
         )]);
     }
 

boa_engine/src/vm/tests.rs

@@ -1,4 +1,4 @@
-use crate::{js_string, run_test_actions, JsNativeErrorKind, JsValue, TestAction};
+use crate::{run_test_actions, JsNativeErrorKind, JsValue, TestAction};
 use indoc::indoc;
 
 #[test]
@@ -8,7 +8,7 @@ fn typeof_string() {
             const a = "hello";
             typeof a;
         "#},
-        js_string!("string"),
+        "string",
     )]);
 }
 
@@ -19,7 +19,7 @@ fn typeof_number() {
             let a = 1234;
             typeof a;
         "#},
-        js_string!("number"),
+        "number",
     )]);
 }
 
@@ -50,7 +50,7 @@ fn try_catch_finally_from_init() {
             } finally {
             }
         "#},
-        js_string!("h"),
+        "h",
     )]);
 }
 
@@ -85,7 +85,7 @@ fn use_last_expr_try_block() {
                 "Bye!"
             }
         "#},
-        js_string!("Hello!"),
+        "Hello!",
     )]);
 }
 
@@ -102,7 +102,7 @@ fn use_last_expr_catch_block() {
                 "Hello!";
             }
         "#},
-        js_string!("Hello!"),
+        "Hello!",
     )]);
 }
 
@@ -133,7 +133,7 @@ fn finally_block_binding_env() {
             }
             buf
         "#},
-        js_string!("Hey hey people"),
+        "Hey hey people",
     )]);
 }
 
@@ -150,7 +150,7 @@ fn run_super_method_in_object() {
             Object.setPrototypeOf(obj, proto);
             obj.v();
         "#},
-        js_string!("super"),
+        "super",
     )]);
 }
 
@@ -174,7 +174,7 @@ fn get_reference_by_super() {
             obj.method();
             fromA + fromB
         "#},
-        js_string!("ab"),
+        "ab",
     )]);
 }
 
@@ -234,7 +234,7 @@ fn order_of_execution_in_assigment_with_comma_expressions() {
             (f(1), a)[(f(2), 0)][(f(3), 0)] = (f(4), 123);
             result
         "#},
-        js_string!("1234"),
+        "1234",
     )]);
 }
 
@@ -321,7 +321,7 @@ fn arguments_object_constructor_valid_index() {
             new F();
             typeof args
         "#},
-        js_string!("object"),
+        "object",
     )]);
 }
 
@@ -383,7 +383,7 @@ fn super_construction_with_paramater_expression() {
                 }
             }
         "#}),
-        TestAction::assert_eq("new Student().name", js_string!("unknown")),
-        TestAction::assert_eq("new Student('Jack').name", js_string!("Jack")),
+        TestAction::assert_eq("new Student().name", "unknown"),
+        TestAction::assert_eq("new Student('Jack').name", "Jack"),
     ]);
 }

boa_examples/src/bin/classes.rs

@@ -119,7 +119,7 @@ impl Class for Person {
         // of `"Im a static property"` and attribute flags `WRITABLE`, `ENUMERABLE` and `PERMANENT`.
         class.static_property(
             "staticProperty",
-            js_string!("Im a static property"),
+            "Im a static property",
             Attribute::WRITABLE | Attribute::ENUMERABLE | Attribute::PERMANENT,
         );
 

boa_examples/src/bin/closures.rs

@@ -23,7 +23,7 @@ fn main() -> Result<(), JsError> {
     // We register a global closure function that has the name 'closure' with length 0.
     context
         .register_global_callable(
-            js_string!("closure"),
+            JsString::from("closure"),
             0,
             NativeFunction::from_copy_closure(move |_, _, _| {
                 println!("Called `closure`");
@@ -54,7 +54,7 @@ fn main() -> Result<(), JsError> {
     object.define_property_or_throw(
         "name",
         PropertyDescriptor::builder()
-            .value(js_string!("Boa dev"))
+            .value("Boa dev")
             .writable(false)
             .enumerable(false)
             .configurable(false),
@@ -121,13 +121,13 @@ fn main() -> Result<(), JsError> {
 
     assert_eq!(
         context.eval(Source::from_bytes("createMessage()"))?,
-        js_string!("message from `Boa dev`: Hello!").into()
+        "message from `Boa dev`: Hello!".into()
     );
 
     // The data mutates between calls
     assert_eq!(
         context.eval(Source::from_bytes("createMessage(); createMessage();"))?,
-        js_string!("message from `Boa dev`: Hello! Hello! Hello!").into()
+        "message from `Boa dev`: Hello! Hello! Hello!".into()
     );
 
     // We have moved `Clone` variables into a closure and executed that closure
@@ -144,7 +144,7 @@ fn main() -> Result<(), JsError> {
     // We register a global closure that is not `Copy`.
     context
         .register_global_callable(
-            js_string!("enumerate"),
+            JsString::from("enumerate"),
             0,
             // Note that it is required to use `unsafe` code, since the compiler cannot verify that the
             // types captured by the closure are not traceable.

boa_examples/src/bin/futures.rs

@@ -10,7 +10,7 @@ use boa_engine::{
     js_string,
     native_function::NativeFunction,
     property::Attribute,
-    Context, JsArgs, JsResult, JsValue, Source,
+    Context, JsArgs, JsResult, JsString, JsValue, Source,
 };
 use boa_runtime::Console;
 use futures_util::{stream::FuturesUnordered, Future};
@@ -142,7 +142,7 @@ fn add_runtime(context: &mut Context<'_>) {
     // Then, bind the defined async function to the ECMAScript function "delay".
     context
         .register_global_builtin_callable(
-            js_string!("delay"),
+            JsString::from("delay"),
             1,
             NativeFunction::from_async_fn(delay),
         )

boa_examples/src/bin/host_defined.rs

@@ -1,7 +1,7 @@
 // This example goes into the details on how to store user defined structs/state that is shared.
 
 use boa_engine::{
-    js_string, native_function::NativeFunction, Context, JsArgs, JsError, JsNativeError, Source,
+    native_function::NativeFunction, Context, JsArgs, JsError, JsNativeError, JsString, Source,
 };
 use boa_gc::{Finalize, Trace};
 
@@ -81,7 +81,7 @@ fn main() -> Result<(), JsError> {
     //
     // The funtion lives in the context's realm and has access to the host-defined field.
     context.register_global_builtin_callable(
-        js_string!("setRealmValue"),
+        JsString::from("setRealmValue"),
         1,
         NativeFunction::from_fn_ptr(|_, args, context| {
             let value: usize = args.get_or_undefined(0).try_js_into(context)?;
@@ -100,7 +100,7 @@ fn main() -> Result<(), JsError> {
     )?;
 
     context.register_global_builtin_callable(
-        js_string!("getRealmValue"),
+        JsString::from("getRealmValue"),
         0,
         NativeFunction::from_fn_ptr(|_, _, context| {
             let host_defined = context.realm().host_defined();

boa_examples/src/bin/jsarray.rs

@@ -1,7 +1,6 @@
 // This example shows how to manipulate a Javascript array using Rust code.
 
 use boa_engine::{
-    js_string,
     native_function::NativeFunction,
     object::{builtins::JsArray, FunctionObjectBuilder},
     Context, JsResult, JsValue,
@@ -16,16 +15,13 @@ fn main() -> JsResult<()> {
 
     assert!(array.is_empty(context)?);
 
-    array.push(js_string!("Hello, world"), context)?; // [ "Hello, world" ]
+    array.push("Hello, world", context)?; // [ "Hello, world" ]
     array.push(true, context)?; // [ "Hello, world", true ]
 
     assert!(!array.is_empty(context)?);
 
     assert_eq!(array.pop(context)?, JsValue::new(true)); // [ "Hello, world" ]
-    assert_eq!(
-        array.pop(context)?,
-        JsValue::new(js_string!("Hello, world"))
-    ); // [ ]
+    assert_eq!(array.pop(context)?, JsValue::new("Hello, world")); // [ ]
     assert_eq!(array.pop(context)?, JsValue::undefined()); // [ ]
 
     array.push(1, context)?; // [ 1 ]
@@ -116,7 +112,7 @@ fn main() -> JsResult<()> {
 
     context
         .global_object()
-        .set(js_string!("myArray"), array, true, context)?;
+        .set("myArray", array, true, context)?;
 
     Ok(())
 }

boa_examples/src/bin/jsdate.rs

@@ -1,6 +1,4 @@
-use boa_engine::{
-    context::HostHooks, js_string, object::builtins::JsDate, Context, JsResult, JsValue,
-};
+use boa_engine::{context::HostHooks, object::builtins::JsDate, Context, JsResult, JsValue};
 use chrono::{DateTime, FixedOffset, LocalResult, NaiveDateTime, TimeZone};
 
 struct CustomTimezone;
@@ -66,27 +64,27 @@ fn main() -> JsResult<()> {
 
     assert_eq!(
         date.to_json(context)?,
-        JsValue::from(js_string!("2000-10-09T20:12:59.059Z"))
+        JsValue::from("2000-10-09T20:12:59.059Z")
     );
 
     assert_eq!(
         date.to_date_string(context)?,
-        JsValue::from(js_string!("Mon Oct 09 2000"))
+        JsValue::from("Mon Oct 09 2000")
     );
 
     assert_eq!(
         date.to_iso_string(context)?,
-        JsValue::from(js_string!("2000-10-09T20:12:59.059Z"))
+        JsValue::from("2000-10-09T20:12:59.059Z")
     );
 
     assert_eq!(
         date.to_time_string(context)?,
-        JsValue::from(js_string!("23:12:59 GMT+0300"))
+        JsValue::from("23:12:59 GMT+0300")
     );
 
     assert_eq!(
         date.to_string(context)?,
-        JsValue::from(js_string!("Mon Oct 09 2000 23:12:59 GMT+0300"))
+        JsValue::from("Mon Oct 09 2000 23:12:59 GMT+0300")
     );
 
     Ok(())

boa_examples/src/bin/jsmap.rs

@@ -1,5 +1,4 @@
 use boa_engine::{
-    js_string,
     object::{builtins::JsArray, builtins::JsMap},
     Context, JsResult, JsValue,
 };
@@ -12,9 +11,9 @@ fn main() -> JsResult<()> {
     let map = JsMap::new(context);
 
     // Set a key-value for the map.
-    map.set(js_string!("Key-1"), js_string!("Value-1"), context)?;
+    map.set("Key-1", "Value-1", context)?;
 
-    let map_check = map.has(js_string!("Key-1"), context)?;
+    let map_check = map.has("Key-1", context)?;
     assert_eq!(map_check, true.into()); // true
 
     // Set a second key-value to the same map.
@@ -22,16 +21,13 @@ fn main() -> JsResult<()> {
 
     assert_eq!(map.get_size(context)?, 2.into()); //true
 
-    assert_eq!(
-        map.get(js_string!("Key-1"), context)?,
-        js_string!("Value-1").into()
-    );
+    assert_eq!(map.get("Key-1", context)?, "Value-1".into());
     assert_eq!(map.get(2, context)?, 4.into());
     // Delete an entry with a provided key.
-    map.delete(js_string!("Key-1"), context)?;
+    map.delete("Key-1", context)?;
     assert_eq!(map.get_size(context)?, 1.into());
 
-    let deleted_key_one = map.get(js_string!("Key-1"), context)?;
+    let deleted_key_one = map.get("Key-1", context)?;
 
     assert_eq!(deleted_key_one, JsValue::undefined());
 
@@ -43,14 +39,8 @@ fn main() -> JsResult<()> {
     // Create a multidimensional array with key value pairs -> [[first-key, first-value], [second-key, second-value]]
     let js_array = JsArray::new(context);
 
-    let vec_one = vec![
-        JsValue::new(js_string!("first-key")),
-        JsValue::new(js_string!("first-value")),
-    ];
-    let vec_two = vec![
-        JsValue::new(js_string!("second-key")),
-        JsValue::new(js_string!("second-value")),
-    ];
+    let vec_one = vec![JsValue::new("first-key"), JsValue::new("first-value")];
+    let vec_two = vec![JsValue::new("second-key"), JsValue::new("second-value")];
 
     js_array.push(JsArray::from_iter(vec_one, context), context)?;
     js_array.push(JsArray::from_iter(vec_two, context), context)?;
@@ -58,12 +48,9 @@ fn main() -> JsResult<()> {
     // Create a map from the JsArray using it's iterable property.
     let iter_map = JsMap::from_js_iterable(&js_array.into(), context)?;
 
-    assert_eq!(
-        iter_map.get(js_string!("first-key"), context)?,
-        js_string!("first-value").into()
-    );
+    assert_eq!(iter_map.get("first-key", context)?, "first-value".into());
 
-    iter_map.set(js_string!("third-key"), js_string!("third-value"), context)?;
+    iter_map.set("third-key", "third-value", context)?;
 
     assert_eq!(iter_map.get_size(context)?, JsValue::new(3));
 

boa_examples/src/bin/jsregexp.rs

@@ -1,11 +1,11 @@
-use boa_engine::{js_string, object::builtins::JsRegExp, Context, JsResult};
+use boa_engine::{object::builtins::JsRegExp, Context, JsResult};
 
 fn main() -> JsResult<()> {
     let context = &mut Context::default();
 
-    let regexp = JsRegExp::new(js_string!("foo"), js_string!("gi"), context)?;
+    let regexp = JsRegExp::new("foo", "gi", context)?;
 
-    let test_result = regexp.test(js_string!("football"), context)?;
+    let test_result = regexp.test("football", context)?;
     assert!(test_result);
 
     let flags = regexp.flags(context)?;

boa_examples/src/bin/jsset.rs

@@ -1,6 +1,6 @@
 // This example shows how to manipulate a Javascript Set using Rust code.
 #![allow(clippy::bool_assert_comparison)]
-use boa_engine::{js_string, object::builtins::JsSet, Context, JsError, JsValue};
+use boa_engine::{object::builtins::JsSet, Context, JsError, JsValue};
 
 fn main() -> Result<(), JsError> {
     // New `Context` for a new Javascript executor.
@@ -17,21 +17,21 @@ fn main() -> Result<(), JsError> {
     set.clear(context)?;
     assert_eq!(set.size()?, 0);
 
-    set.add(js_string!("one"), context)?;
-    set.add(js_string!("two"), context)?;
-    set.add(js_string!("three"), context)?;
+    set.add("one", context)?;
+    set.add("two", context)?;
+    set.add("three", context)?;
 
-    assert!(set.has(js_string!("one"), context)?);
-    assert_eq!(set.has(js_string!("One"), context)?, false);
+    assert!(set.has("one", context)?);
+    assert_eq!(set.has("One", context)?, false);
 
-    set.delete(js_string!("two"), context)?;
+    set.delete("two", context)?;
 
-    assert_eq!(set.has(js_string!("two"), context)?, false);
+    assert_eq!(set.has("two", context)?, false);
 
     set.clear(context)?;
 
-    assert_eq!(set.has(js_string!("one"), context)?, false);
-    assert_eq!(set.has(js_string!("three"), context)?, false);
+    assert_eq!(set.has("one", context)?, false);
+    assert_eq!(set.has("three", context)?, false);
     assert_eq!(set.size()?, 0);
 
     // Add a slice into a set;

boa_examples/src/bin/jstypedarray.rs

@@ -1,7 +1,6 @@
 // This example shows how to manipulate a Javascript array using Rust code.
 
 use boa_engine::{
-    js_string,
     native_function::NativeFunction,
     object::{builtins::JsUint8Array, FunctionObjectBuilder},
     property::Attribute,
@@ -43,7 +42,7 @@ fn main() -> JsResult<()> {
 
     context
         .register_global_property(
-            js_string!("myUint8Array"),
+            "myUint8Array",
             array,
             Attribute::WRITABLE | Attribute::ENUMERABLE | Attribute::CONFIGURABLE,
         )

boa_examples/src/bin/modulehandler.rs

@@ -28,26 +28,13 @@ fn main() -> Result<(), Box<dyn Error>> {
     add_runtime(&mut ctx);
 
     // Adding custom implementation that mimics 'require'
-    ctx.register_global_callable(
-        js_string!("require"),
-        0,
-        NativeFunction::from_fn_ptr(require),
-    )?;
+    ctx.register_global_callable("require".into(), 0, NativeFunction::from_fn_ptr(require))?;
 
     // Adding custom object that mimics 'module.exports'
     let moduleobj = JsObject::default();
-    moduleobj.set(
-        js_string!("exports"),
-        JsValue::from(js_string!(" ")),
-        false,
-        &mut ctx,
-    )?;
+    moduleobj.set("exports", JsValue::from(" "), false, &mut ctx)?;
 
-    ctx.register_global_property(
-        js_string!("module"),
-        JsValue::from(moduleobj),
-        Attribute::default(),
-    )?;
+    ctx.register_global_property("module", JsValue::from(moduleobj), Attribute::default())?;
 
     // Instantiating the engine with the execution context
     // Loading, parsing and executing the JS code from the source file
@@ -72,9 +59,9 @@ fn require(_: &JsValue, args: &[JsValue], ctx: &mut Context<'_>) -> JsResult<JsV
 
     // Access module.exports and return as ResultValue
     let global_obj = ctx.global_object();
-    let module = global_obj.get(js_string!("module"), ctx)?;
+    let module = global_obj.get("module", ctx)?;
     module
         .as_object()
         .ok_or_else(|| JsNativeError::typ().with_message("`exports` property was not an object"))?
-        .get(js_string!("exports"), ctx)
+        .get("exports", ctx)
 }

boa_runtime/src/console/mod.rs

@@ -220,14 +220,14 @@ impl Console {
 
         if !assertion {
             let mut args: Vec<JsValue> = args.iter().skip(1).cloned().collect();
-            let message = js_string!("Assertion failed");
+            let message = "Assertion failed";
             if args.is_empty() {
                 args.push(JsValue::new(message));
             } else if !args[0].is_string() {
                 args.insert(0, JsValue::new(message));
             } else {
-                let value: Vec<u16> = args[0].display().to_string().encode_utf16().collect();
-                let concat = js_string!(&message, ": ", &value[..]);
+                let value = args[0].display().to_string();
+                let concat = js_string!(message, ": ", value.as_str());
                 args[0] = JsValue::new(concat);
             }
 

boa_runtime/src/console/tests.rs

@@ -21,7 +21,7 @@ fn formatter_empty_format_string_is_empty_string() {
 fn formatter_format_without_args_renders_verbatim() {
     run_test_actions([TestAction::inspect_context(|ctx| {
         assert_eq!(
-            formatter(&[JsValue::new(js_string!("%d %s %% %f"))], ctx).unwrap(),
+            formatter(&[JsValue::new("%d %s %% %f")], ctx).unwrap(),
             "%d %s %% %f"
         );
     })]);
@@ -33,9 +33,9 @@ fn formatter_empty_format_string_concatenates_rest_of_args() {
         assert_eq!(
             formatter(
                 &[
-                    JsValue::new(js_string!("")),
-                    JsValue::new(js_string!("to powinno zostać")),
-                    JsValue::new(js_string!("połączone")),
+                    JsValue::new(""),
+                    JsValue::new("to powinno zostać"),
+                    JsValue::new("połączone"),
                 ],
                 ctx
             )
@@ -51,10 +51,10 @@ fn formatter_utf_8_checks() {
         assert_eq!(
             formatter(
                 &[
-                    JsValue::new(js_string!("Są takie chwile %dą %są tu%sów %привет%ź")),
+                    JsValue::new("Są takie chwile %dą %są tu%sów %привет%ź"),
                     JsValue::new(123),
                     JsValue::new(1.23),
-                    JsValue::new(js_string!("ł")),
+                    JsValue::new("ł"),
                 ],
                 ctx
             )
@@ -68,14 +68,7 @@ fn formatter_utf_8_checks() {
 fn formatter_trailing_format_leader_renders() {
     run_test_actions([TestAction::inspect_context(|ctx| {
         assert_eq!(
-            formatter(
-                &[
-                    JsValue::new(js_string!("%%%%%")),
-                    JsValue::new(js_string!("|"))
-                ],
-                ctx
-            )
-            .unwrap(),
+            formatter(&[JsValue::new("%%%%%"), JsValue::new("|")], ctx).unwrap(),
             "%%% |"
         );
     })]);
@@ -86,7 +79,7 @@ fn formatter_trailing_format_leader_renders() {
 fn formatter_float_format_works() {
     run_test_actions([TestAction::inspect_context(|ctx| {
         assert_eq!(
-            formatter(&[JsValue::new(js_string!("%f")), JsValue::new(3.1415)], ctx).unwrap(),
+            formatter(&[JsValue::new("%f"), JsValue::new(3.1415)], ctx).unwrap(),
             "3.141500"
         );
     })]);

boa_tester/src/exec/mod.rs

@@ -666,10 +666,10 @@ fn is_error_type(error: &JsError, target_type: ErrorType, context: &mut Context<
             .as_opaque()
             .expect("try_native cannot fail if e is not opaque")
             .as_object()
-            .and_then(|o| o.get(js_string!("constructor"), context).ok())
+            .and_then(|o| o.get("constructor", context).ok())
             .as_ref()
             .and_then(JsValue::as_object)
-            .and_then(|o| o.get(js_string!("name"), context).ok())
+            .and_then(|o| o.get("name", context).ok())
             .as_ref()
             .and_then(JsValue::as_string)
             .map(|s| s == target_type.as_str())
@@ -713,7 +713,7 @@ fn register_print_fn(context: &mut Context<'_>, async_result: AsyncResult) {
 
     context
         .register_global_property(
-            js_string!("print"),
+            "print",
             js_function,
             Attribute::WRITABLE | Attribute::NON_ENUMERABLE | Attribute::CONFIGURABLE,
         )