Cleanup intrinsics and move to realm (#2555)

Small (ish?) step towards having proper realm records 

This PR changes the following:

- Moves `Intrinsics` to `Realm`.
- Cleans up the initialization logic of our intrinsics to not depend on `Context`, unblocking things like #2314.
- Adds hooks to initialize the global object and the global this per the corresponding [`InitializeHostDefinedRealm ( )`](https://tc39.es/ecma262/#sec-initializehostdefinedrealm) hook. Though, this is currently broken because the vm uses `GlobalPropertyMap` instead of the `JsObject` API to initialize global properties.

boa_cli/src/main.rs

@@ -255,7 +255,10 @@ fn main() -> Result<(), io::Error> {
     let args = Opt::parse();
 
     let queue = Jobs::default();
-    let mut context = ContextBuilder::new().job_queue(&queue).build();
+    let mut context = ContextBuilder::new()
+        .job_queue(&queue)
+        .build()
+        .expect("cannot fail with default global object");
 
     // Trace Output
     context.set_trace(args.trace);

boa_engine/benches/full.rs

@@ -1,6 +1,6 @@
 //! Benchmarks of the whole execution engine in Boa.
 
-use boa_engine::{realm::Realm, Context, Source};
+use boa_engine::{context::DefaultHooks, realm::Realm, Context, Source};
 use criterion::{criterion_group, criterion_main, Criterion};
 use std::hint::black_box;
 
@@ -12,7 +12,9 @@ use std::hint::black_box;
 static ALLOC: jemallocator::Jemalloc = jemallocator::Jemalloc;
 
 fn create_realm(c: &mut Criterion) {
-    c.bench_function("Create Realm", move |b| b.iter(|| Realm::create(None)));
+    c.bench_function("Create Realm", move |b| {
+        b.iter(|| Realm::create(&DefaultHooks))
+    });
 }
 
 macro_rules! full_benchmarks {

boa_engine/src/builtins/array/array_iterator.rs

@@ -6,10 +6,13 @@
 //! [spec]: https://tc39.es/ecma262/#sec-array-iterator-objects
 
 use crate::{
-    builtins::{function::make_builtin_fn, iterable::create_iter_result_object, Array, JsValue},
+    builtins::{
+        iterable::create_iter_result_object, Array, BuiltInBuilder, IntrinsicObject, JsValue,
+    },
+    context::intrinsics::Intrinsics,
     error::JsNativeError,
     object::{JsObject, ObjectData},
-    property::{PropertyDescriptor, PropertyNameKind},
+    property::{Attribute, PropertyNameKind},
     symbol::JsSymbol,
     Context, JsResult,
 };
@@ -31,9 +34,27 @@ pub struct ArrayIterator {
     done: bool,
 }
 
-impl ArrayIterator {
-    pub(crate) const NAME: &'static str = "ArrayIterator";
+impl IntrinsicObject for ArrayIterator {
+    fn init(intrinsics: &Intrinsics) {
+        let _timer = Profiler::global().start_event("ArrayIterator", "init");
+
+        BuiltInBuilder::with_intrinsic::<Self>(intrinsics)
+            .prototype(intrinsics.objects().iterator_prototypes().iterator())
+            .static_method(Self::next, "next", 0)
+            .static_property(
+                JsSymbol::to_string_tag(),
+                "Array Iterator",
+                Attribute::CONFIGURABLE,
+            )
+            .build();
+    }
+
+    fn get(intrinsics: &Intrinsics) -> JsObject {
+        intrinsics.objects().iterator_prototypes().array()
+    }
+}
 
+impl ArrayIterator {
     fn new(array: JsObject, kind: PropertyNameKind) -> Self {
         Self {
             array,
@@ -57,11 +78,7 @@ impl ArrayIterator {
         context: &Context<'_>,
     ) -> JsValue {
         let array_iterator = JsObject::from_proto_and_data(
-            context
-                .intrinsics()
-                .objects()
-                .iterator_prototypes()
-                .array_iterator(),
+            context.intrinsics().objects().iterator_prototypes().array(),
             ObjectData::array_iterator(Self::new(array, kind)),
         );
         array_iterator.into()
@@ -130,31 +147,4 @@ impl ArrayIterator {
             }
         }
     }
-
-    /// Create the `%ArrayIteratorPrototype%` object
-    ///
-    /// More information:
-    ///  - [ECMA reference][spec]
-    ///
-    /// [spec]: https://tc39.es/ecma262/#sec-%arrayiteratorprototype%-object
-    pub(crate) fn create_prototype(
-        iterator_prototype: JsObject,
-        context: &mut Context<'_>,
-    ) -> JsObject {
-        let _timer = Profiler::global().start_event(Self::NAME, "init");
-
-        // Create prototype
-        let array_iterator =
-            JsObject::from_proto_and_data(iterator_prototype, ObjectData::ordinary());
-        make_builtin_fn(Self::next, "next", &array_iterator, 0, context);
-
-        let to_string_tag = JsSymbol::to_string_tag();
-        let to_string_tag_property = PropertyDescriptor::builder()
-            .value("Array Iterator")
-            .writable(false)
-            .enumerable(false)
-            .configurable(true);
-        array_iterator.insert(to_string_tag, to_string_tag_property);
-        array_iterator
-    }
 }