Async Function

boa_builtins/build.rs

@@ -1071,9 +1071,22 @@ fn main() -> io::Result<()> {
         .method(utf16!("return"))
         .method(utf16!("throw"))
         .property(WellKnown::ToStringTag, Attribute::CONFIGURABLE)
-        .property(utf16!("CONSTRUCTOR"), Attribute::CONFIGURABLE)
+        .property(utf16!("constructor"), Attribute::CONFIGURABLE)
         .build(file)?;
 
+    BuiltInBuilderConstructor::new(&context, "ASYNC_FUNCTION")
+        .property(WellKnown::ToStringTag, Attribute::CONFIGURABLE)
+        .build(file)?;
+
+    BuiltInBuilderConstructor::with_constructor_attributes(
+        &context,
+        "ASYNC_GENERATOR_FUNCTION",
+        Attribute::CONFIGURABLE,
+    )
+    .property(utf16!("prototype"), Attribute::CONFIGURABLE)
+    .property(WellKnown::ToStringTag, Attribute::CONFIGURABLE)
+    .build(file)?;
+
     #[cfg(feature = "intl")]
     {
         BuiltInBuilder::new(&context, "INTL_OBJECT")

boa_engine/src/builtins/async_function/mod.rs

@@ -10,9 +10,7 @@
 use crate::{
     builtins::{function::BuiltInFunctionObject, BuiltInObject},
     context::intrinsics::{Intrinsics, StandardConstructor, StandardConstructors},
-    property::Attribute,
     realm::Realm,
-    symbol::JsSymbol,
     Context, JsResult, JsValue,
 };
 use boa_profiler::Profiler;
@@ -27,17 +25,17 @@ impl IntrinsicObject for AsyncFunction {
     fn init(realm: &Realm) {
         let _timer = Profiler::global().start_event(Self::NAME, "init");
 
-        BuiltInBuilder::from_standard_constructor::<Self>(realm)
-            .prototype(realm.intrinsics().constructors().function().constructor())
-            .inherits(Some(
-                realm.intrinsics().constructors().function().prototype(),
-            ))
-            .property(
-                JsSymbol::to_string_tag(),
-                Self::NAME,
-                Attribute::CONFIGURABLE,
-            )
-            .build();
+        BuiltInBuilder::from_standard_constructor_static_shape::<Self>(
+            realm,
+            &boa_builtins::ASYNC_FUNCTION_CONSTRUCTOR_STATIC_SHAPE,
+            &boa_builtins::ASYNC_FUNCTION_PROTOTYPE_STATIC_SHAPE,
+        )
+        .prototype(realm.intrinsics().constructors().function().constructor())
+        .inherits(Some(
+            realm.intrinsics().constructors().function().prototype(),
+        ))
+        .property(Self::NAME)
+        .build();
     }
 
     fn get(intrinsics: &Intrinsics) -> crate::object::JsObject {

boa_engine/src/builtins/async_generator_function/mod.rs

@@ -8,10 +8,8 @@
 use crate::{
     builtins::{function::BuiltInFunctionObject, BuiltInObject},
     context::intrinsics::{Intrinsics, StandardConstructor, StandardConstructors},
-    object::{JsObject, PROTOTYPE},
-    property::Attribute,
+    object::JsObject,
     realm::Realm,
-    symbol::JsSymbol,
     value::JsValue,
     Context, JsResult,
 };
@@ -27,22 +25,17 @@ impl IntrinsicObject for AsyncGeneratorFunction {
     fn init(realm: &Realm) {
         let _timer = Profiler::global().start_event(Self::NAME, "init");
 
-        BuiltInBuilder::from_standard_constructor::<Self>(realm)
-            .inherits(Some(
-                realm.intrinsics().constructors().function().prototype(),
-            ))
-            .constructor_attributes(Attribute::CONFIGURABLE)
-            .property(
-                PROTOTYPE,
-                realm.intrinsics().objects().async_generator(),
-                Attribute::CONFIGURABLE,
-            )
-            .property(
-                JsSymbol::to_string_tag(),
-                Self::NAME,
-                Attribute::CONFIGURABLE,
-            )
-            .build();
+        BuiltInBuilder::from_standard_constructor_static_shape::<Self>(
+            realm,
+            &boa_builtins::ASYNC_GENERATOR_FUNCTION_CONSTRUCTOR_STATIC_SHAPE,
+            &boa_builtins::ASYNC_GENERATOR_FUNCTION_PROTOTYPE_STATIC_SHAPE,
+        )
+        .inherits(Some(
+            realm.intrinsics().constructors().function().prototype(),
+        ))
+        .property(realm.intrinsics().objects().async_generator())
+        .property(Self::NAME)
+        .build();
     }
 
     fn get(intrinsics: &Intrinsics) -> JsObject {