intrinsics.rs

//! Data structures that contain intrinsic objects and constructors.

use boa_gc::{Finalize, Trace};

use crate::{
    JsSymbol,
    builtins::{Array, OrdinaryObject, iterable::IteratorPrototypes, uri::UriFunctions},
    js_string,
    object::{
        CONSTRUCTOR, JsFunction, JsObject, Object, PROTOTYPE,
        internal_methods::immutable_prototype::IMMUTABLE_PROTOTYPE_EXOTIC_INTERNAL_METHODS,
        shape::{RootShape, shared_shape::template::ObjectTemplate},
    },
    property::{Attribute, PropertyKey},
};

#[cfg(feature = "intl")]
use crate::builtins::intl::Intl;

/// The intrinsic objects and constructors.
///
/// `Intrinsics` is internally stored using a `Gc`, which makes it cheapily cloneable
/// for multiple references to the same set of intrinsic objects.
#[derive(Debug, Trace, Finalize)]
pub struct Intrinsics {
    /// Cached standard constructors
    pub(super) constructors: StandardConstructors,
    /// Cached intrinsic objects
    pub(super) objects: IntrinsicObjects,
    /// Cached object templates.
    pub(super) templates: ObjectTemplates,
}

impl Intrinsics {
    /// Creates a new set of uninitialized intrinsics.
    ///
    /// Creates all the required empty objects for every intrinsic in this realm.
    ///
    /// To initialize all the intrinsics with their spec properties, see [`Realm::initialize`].
    ///
    /// [`Realm::initialize`]: crate::realm::Realm::initialize
    pub(crate) fn uninit(root_shape: &RootShape) -> Option<Self> {
        let constructors = StandardConstructors::default();
        let templates = ObjectTemplates::new(root_shape, &constructors);

        Some(Self {
            constructors,
            objects: IntrinsicObjects::uninit()?,
            templates,
        })
    }

    /// Return the cached intrinsic objects.
    #[inline]
    #[must_use]
    pub const fn objects(&self) -> &IntrinsicObjects {
        &self.objects
    }

    /// Return the cached standard constructors.
    #[inline]
    #[must_use]
    pub const fn constructors(&self) -> &StandardConstructors {
        &self.constructors
    }

    pub(crate) const fn templates(&self) -> &ObjectTemplates {
        &self.templates
    }
}

/// Stores a constructor (such as `Object`) and its corresponding prototype.
#[derive(Debug, Trace, Finalize, Clone)]
pub struct StandardConstructor {
    constructor: JsFunction,
    prototype: JsObject,
}

impl Default for StandardConstructor {
    fn default() -> Self {
        Self {
            constructor: JsFunction::empty_intrinsic_function(true),
            prototype: JsObject::with_null_proto(),
        }
    }
}

impl StandardConstructor {
    /// Creates a new `StandardConstructor` from the constructor and the prototype.
    pub(crate) fn new(constructor: JsFunction, prototype: JsObject) -> Self {
        Self {
            constructor,
            prototype,
        }
    }

    /// Build a constructor with a defined prototype.
    fn with_prototype(prototype: JsObject) -> Self {
        Self {
            constructor: JsFunction::empty_intrinsic_function(true),
            prototype,
        }
    }

    /// Return the prototype of the constructor object.
    ///
    /// This is the same as `Object.prototype`, `Array.prototype`, etc.
    #[inline]
    #[must_use]
    pub fn prototype(&self) -> JsObject {
        self.prototype.clone()
    }

    /// Return the constructor object.
    ///
    /// This is the same as `Object`, `Array`, etc.
    #[inline]
    #[must_use]
    pub fn constructor(&self) -> JsObject {
        self.constructor.clone().into()
    }
}

/// Cached core standard constructors.
#[derive(Debug, Trace, Finalize)]
pub struct StandardConstructors {
    object: StandardConstructor,
    proxy: StandardConstructor,
    date: StandardConstructor,
    function: StandardConstructor,
    async_function: StandardConstructor,
    generator_function: StandardConstructor,
    async_generator_function: StandardConstructor,
    array: StandardConstructor,
    bigint: StandardConstructor,
    number: StandardConstructor,
    boolean: StandardConstructor,
    string: StandardConstructor,
    regexp: StandardConstructor,
    symbol: StandardConstructor,
    error: StandardConstructor,
    type_error: StandardConstructor,
    reference_error: StandardConstructor,
    range_error: StandardConstructor,
    syntax_error: StandardConstructor,
    eval_error: StandardConstructor,
    uri_error: StandardConstructor,
    aggregate_error: StandardConstructor,
    map: StandardConstructor,
    set: StandardConstructor,
    shadow_realm: StandardConstructor,
    typed_array: StandardConstructor,
    typed_int8_array: StandardConstructor,
    typed_uint8_array: StandardConstructor,
    typed_uint8clamped_array: StandardConstructor,
    typed_int16_array: StandardConstructor,
    typed_uint16_array: StandardConstructor,
    typed_int32_array: StandardConstructor,
    typed_uint32_array: StandardConstructor,
    typed_bigint64_array: StandardConstructor,
    typed_biguint64_array: StandardConstructor,
    #[cfg(feature = "float16")]
    typed_float16_array: StandardConstructor,
    typed_float32_array: StandardConstructor,
    typed_float64_array: StandardConstructor,
    array_buffer: StandardConstructor,
    shared_array_buffer: StandardConstructor,
    data_view: StandardConstructor,
    date_time_format: StandardConstructor,
    promise: StandardConstructor,
    weak_ref: StandardConstructor,
    weak_map: StandardConstructor,
    weak_set: StandardConstructor,
    iterator: StandardConstructor,
    #[cfg(feature = "intl")]
    collator: StandardConstructor,
    #[cfg(feature = "intl")]
    list_format: StandardConstructor,
    #[cfg(feature = "intl")]
    locale: StandardConstructor,
    #[cfg(feature = "intl")]
    segmenter: StandardConstructor,
    #[cfg(feature = "intl")]
    plural_rules: StandardConstructor,
    #[cfg(feature = "intl")]
    number_format: StandardConstructor,
    #[cfg(feature = "temporal")]
    instant: StandardConstructor,
    #[cfg(feature = "temporal")]
    plain_date_time: StandardConstructor,
    #[cfg(feature = "temporal")]
    plain_date: StandardConstructor,
    #[cfg(feature = "temporal")]
    plain_time: StandardConstructor,
    #[cfg(feature = "temporal")]
    plain_year_month: StandardConstructor,
    #[cfg(feature = "temporal")]
    plain_month_day: StandardConstructor,
    #[cfg(feature = "temporal")]
    time_zone: StandardConstructor,
    #[cfg(feature = "temporal")]
    duration: StandardConstructor,
    #[cfg(feature = "temporal")]
    zoned_date_time: StandardConstructor,
    #[cfg(feature = "temporal")]
    calendar: StandardConstructor,
}

impl Default for StandardConstructors {
    fn default() -> Self {
        Self {
            object: StandardConstructor::with_prototype(JsObject::from_object_and_vtable(
                Object::<OrdinaryObject>::default(),
                &IMMUTABLE_PROTOTYPE_EXOTIC_INTERNAL_METHODS,
            )),
            async_generator_function: StandardConstructor::default(),
            proxy: StandardConstructor::default(),
            date: StandardConstructor::default(),
            function: StandardConstructor {
                constructor: JsFunction::empty_intrinsic_function(true),
                prototype: JsFunction::empty_intrinsic_function(false).into(),
            },
            async_function: StandardConstructor::default(),
            generator_function: StandardConstructor::default(),
            array: StandardConstructor::with_prototype(JsObject::from_proto_and_data(None, Array)),
            bigint: StandardConstructor::default(),
            number: StandardConstructor::with_prototype(JsObject::from_proto_and_data(None, 0.0)),
            boolean: StandardConstructor::with_prototype(JsObject::from_proto_and_data(
                None, false,
            )),
            string: StandardConstructor::with_prototype(JsObject::from_proto_and_data(
                None,
                js_string!(),
            )),
            regexp: StandardConstructor::default(),
            symbol: StandardConstructor::default(),
            error: StandardConstructor::default(),
            type_error: StandardConstructor::default(),
            reference_error: StandardConstructor::default(),
            range_error: StandardConstructor::default(),
            syntax_error: StandardConstructor::default(),
            eval_error: StandardConstructor::default(),
            uri_error: StandardConstructor::default(),
            aggregate_error: StandardConstructor::default(),
            map: StandardConstructor::default(),
            set: StandardConstructor::default(),
            shadow_realm: StandardConstructor::default(),
            typed_array: StandardConstructor::default(),
            typed_int8_array: StandardConstructor::default(),
            typed_uint8_array: StandardConstructor::default(),
            typed_uint8clamped_array: StandardConstructor::default(),
            typed_int16_array: StandardConstructor::default(),
            typed_uint16_array: StandardConstructor::default(),
            typed_int32_array: StandardConstructor::default(),
            typed_uint32_array: StandardConstructor::default(),
            typed_bigint64_array: StandardConstructor::default(),
            typed_biguint64_array: StandardConstructor::default(),
            #[cfg(feature = "float16")]
            typed_float16_array: StandardConstructor::default(),
            typed_float32_array: StandardConstructor::default(),
            typed_float64_array: StandardConstructor::default(),
            array_buffer: StandardConstructor::default(),
            shared_array_buffer: StandardConstructor::default(),
            data_view: StandardConstructor::default(),
            date_time_format: StandardConstructor::default(),
            promise: StandardConstructor::default(),
            weak_ref: StandardConstructor::default(),
            weak_map: StandardConstructor::default(),
            weak_set: StandardConstructor::default(),
            iterator: StandardConstructor::default(),
            #[cfg(feature = "intl")]
            collator: StandardConstructor::default(),
            #[cfg(feature = "intl")]
            list_format: StandardConstructor::default(),
            #[cfg(feature = "intl")]
            locale: StandardConstructor::default(),
            #[cfg(feature = "intl")]
            segmenter: StandardConstructor::default(),
            #[cfg(feature = "intl")]
            plural_rules: StandardConstructor::default(),
            #[cfg(feature = "intl")]
            number_format: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            instant: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            plain_date_time: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            plain_date: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            plain_time: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            plain_year_month: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            plain_month_day: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            time_zone: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            duration: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            zoned_date_time: StandardConstructor::default(),
            #[cfg(feature = "temporal")]
            calendar: StandardConstructor::default(),
        }
    }
}

impl StandardConstructors {
    /// Returns the `AsyncGeneratorFunction` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-asyncgeneratorfunction-constructor
    #[inline]
    #[must_use]
    pub const fn async_generator_function(&self) -> &StandardConstructor {
        &self.async_generator_function
    }

    /// Returns the `Object` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-object-constructor
    #[inline]
    #[must_use]
    pub const fn object(&self) -> &StandardConstructor {
        &self.object
    }

    /// Returns the `Proxy` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-proxy-constructor
    #[inline]
    #[must_use]
    pub const fn proxy(&self) -> &StandardConstructor {
        &self.proxy
    }

    /// Returns the `Date` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-date-constructor
    #[inline]
    #[must_use]
    pub const fn date(&self) -> &StandardConstructor {
        &self.date
    }

    /// Returns the `Function` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-function-constructor
    #[inline]
    #[must_use]
    pub const fn function(&self) -> &StandardConstructor {
        &self.function
    }

    /// Returns the `AsyncFunction` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-async-function-constructor
    #[inline]
    #[must_use]
    pub const fn async_function(&self) -> &StandardConstructor {
        &self.async_function
    }

    /// Returns the `GeneratorFunction` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-generatorfunction-constructor
    #[inline]
    #[must_use]
    pub const fn generator_function(&self) -> &StandardConstructor {
        &self.generator_function
    }

    /// Returns the `Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-array-constructor
    #[inline]
    #[must_use]
    pub const fn array(&self) -> &StandardConstructor {
        &self.array
    }

    /// Returns the `BigInt` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-bigint-constructor
    #[inline]
    #[must_use]
    pub const fn bigint(&self) -> &StandardConstructor {
        &self.bigint
    }

    /// Returns the `Number` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-number-constructor
    #[inline]
    #[must_use]
    pub const fn number(&self) -> &StandardConstructor {
        &self.number
    }

    /// Returns the `Boolean` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-boolean-constructor
    #[inline]
    #[must_use]
    pub const fn boolean(&self) -> &StandardConstructor {
        &self.boolean
    }

    /// Returns the `String` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-string-constructor
    #[inline]
    #[must_use]
    pub const fn string(&self) -> &StandardConstructor {
        &self.string
    }

    /// Returns the `RegExp` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-regexp-constructor
    #[inline]
    #[must_use]
    pub const fn regexp(&self) -> &StandardConstructor {
        &self.regexp
    }

    /// Returns the `Symbol` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-symbol-constructor
    #[inline]
    #[must_use]
    pub const fn symbol(&self) -> &StandardConstructor {
        &self.symbol
    }

    /// Returns the `Error` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-error-constructor
    #[inline]
    #[must_use]
    pub const fn error(&self) -> &StandardConstructor {
        &self.error
    }

    /// Returns the `ReferenceError` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-native-error-types-used-in-this-standard-referenceerror
    #[inline]
    #[must_use]
    pub const fn reference_error(&self) -> &StandardConstructor {
        &self.reference_error
    }

    /// Returns the `TypeError` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-native-error-types-used-in-this-standard-typeerror
    #[inline]
    #[must_use]
    pub const fn type_error(&self) -> &StandardConstructor {
        &self.type_error
    }

    /// Returns the `RangeError` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-native-error-types-used-in-this-standard-rangeerror
    #[inline]
    #[must_use]
    pub const fn range_error(&self) -> &StandardConstructor {
        &self.range_error
    }

    /// Returns the `SyntaxError` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-native-error-types-used-in-this-standard-syntaxerror
    #[inline]
    #[must_use]
    pub const fn syntax_error(&self) -> &StandardConstructor {
        &self.syntax_error
    }

    /// Returns the `EvalError` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-native-error-types-used-in-this-standard-evalerror
    #[inline]
    #[must_use]
    pub const fn eval_error(&self) -> &StandardConstructor {
        &self.eval_error
    }

    /// Returns the `URIError` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-native-error-types-used-in-this-standard-urierror
    #[inline]
    #[must_use]
    pub const fn uri_error(&self) -> &StandardConstructor {
        &self.uri_error
    }

    /// Returns the `AggregateError` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-aggregate-error-constructor
    #[inline]
    #[must_use]
    pub const fn aggregate_error(&self) -> &StandardConstructor {
        &self.aggregate_error
    }

    /// Returns the `Map` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-map-constructor
    #[inline]
    #[must_use]
    pub const fn map(&self) -> &StandardConstructor {
        &self.map
    }

    /// Returns the `Set` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-set-constructor
    #[inline]
    #[must_use]
    pub const fn set(&self) -> &StandardConstructor {
        &self.set
    }

    /// Returns the `ShadowRealm` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-shadowrealm/#sec-shadowrealm-constructor
    #[inline]
    #[must_use]
    pub const fn shadow_realm(&self) -> &StandardConstructor {
        &self.shadow_realm
    }

    /// Returns the `TypedArray` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_array(&self) -> &StandardConstructor {
        &self.typed_array
    }

    /// Returns the `Int8Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_int8_array(&self) -> &StandardConstructor {
        &self.typed_int8_array
    }

    /// Returns the `Uint8Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_uint8_array(&self) -> &StandardConstructor {
        &self.typed_uint8_array
    }

    /// Returns the `Uint8ClampedArray` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_uint8clamped_array(&self) -> &StandardConstructor {
        &self.typed_uint8clamped_array
    }

    /// Returns the `Int16Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_int16_array(&self) -> &StandardConstructor {
        &self.typed_int16_array
    }

    /// Returns the `Uint16Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_uint16_array(&self) -> &StandardConstructor {
        &self.typed_uint16_array
    }

    /// Returns the `Uint32Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_uint32_array(&self) -> &StandardConstructor {
        &self.typed_uint32_array
    }

    /// Returns the `Int32Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_int32_array(&self) -> &StandardConstructor {
        &self.typed_int32_array
    }

    /// Returns the `BigInt64Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_bigint64_array(&self) -> &StandardConstructor {
        &self.typed_bigint64_array
    }

    /// Returns the `BigUint64Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_biguint64_array(&self) -> &StandardConstructor {
        &self.typed_biguint64_array
    }

    /// Returns the `Float16Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[cfg(feature = "float16")]
    #[inline]
    #[must_use]
    pub const fn typed_float16_array(&self) -> &StandardConstructor {
        &self.typed_float16_array
    }

    /// Returns the `Float32Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_float32_array(&self) -> &StandardConstructor {
        &self.typed_float32_array
    }

    /// Returns the `Float64Array` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-typedarray-constructors
    #[inline]
    #[must_use]
    pub const fn typed_float64_array(&self) -> &StandardConstructor {
        &self.typed_float64_array
    }

    /// Returns the `ArrayBuffer` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-arraybuffer-constructor
    #[inline]
    #[must_use]
    pub const fn array_buffer(&self) -> &StandardConstructor {
        &self.array_buffer
    }

    /// Returns the `SharedArrayBuffer` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-sharedarraybuffer-constructor
    #[inline]
    #[must_use]
    pub const fn shared_array_buffer(&self) -> &StandardConstructor {
        &self.shared_array_buffer
    }

    /// Returns the `DataView` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-dataview-constructor
    #[inline]
    #[must_use]
    pub const fn data_view(&self) -> &StandardConstructor {
        &self.data_view
    }

    /// Returns the `Intl.DateTimeFormat` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma402/#sec-intl-datetimeformat-constructor
    #[inline]
    #[must_use]
    pub const fn date_time_format(&self) -> &StandardConstructor {
        &self.date_time_format
    }

    /// Returns the `Promise` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-promise-constructor
    #[inline]
    #[must_use]
    pub const fn promise(&self) -> &StandardConstructor {
        &self.promise
    }

    /// Returns the `WeakRef` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-weak-ref-constructor
    #[inline]
    #[must_use]
    pub const fn weak_ref(&self) -> &StandardConstructor {
        &self.weak_ref
    }

    /// Returns the `WeakMap` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-weakmap-constructor
    #[inline]
    #[must_use]
    pub const fn weak_map(&self) -> &StandardConstructor {
        &self.weak_map
    }

    /// Returns the `WeakSet` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-weakset-constructor
    #[inline]
    #[must_use]
    pub const fn weak_set(&self) -> &StandardConstructor {
        &self.weak_set
    }

    /// Returns the `Iterator` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-iterator-helpers/#sec-iterator-constructor
    #[inline]
    #[must_use]
    pub const fn iterator(&self) -> &StandardConstructor {
        &self.iterator
    }

    /// Returns the `Intl.Collator` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma402/#sec-intl.collator
    #[inline]
    #[must_use]
    #[cfg(feature = "intl")]
    pub const fn collator(&self) -> &StandardConstructor {
        &self.collator
    }

    /// Returns the `Intl.ListFormat` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma402/#sec-Intl.ListFormat
    #[inline]
    #[must_use]
    #[cfg(feature = "intl")]
    pub const fn list_format(&self) -> &StandardConstructor {
        &self.list_format
    }

    /// Returns the `Intl.Locale` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma402/#sec-Intl.Locale
    #[inline]
    #[must_use]
    #[cfg(feature = "intl")]
    pub const fn locale(&self) -> &StandardConstructor {
        &self.locale
    }

    /// Returns the `Intl.Segmenter` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma402/#sec-intl.segmenter
    #[inline]
    #[must_use]
    #[cfg(feature = "intl")]
    pub const fn segmenter(&self) -> &StandardConstructor {
        &self.segmenter
    }

    /// Returns the `Intl.PluralRules` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma402/#sec-intl.pluralrules
    #[inline]
    #[must_use]
    #[cfg(feature = "intl")]
    pub const fn plural_rules(&self) -> &StandardConstructor {
        &self.plural_rules
    }

    /// Returns the `Intl.NumberFormat` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/ecma402/#sec-intl.numberformat
    #[inline]
    #[must_use]
    #[cfg(feature = "intl")]
    pub const fn number_format(&self) -> &StandardConstructor {
        &self.number_format
    }

    /// Returns the `Temporal.Instant` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-instant-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn instant(&self) -> &StandardConstructor {
        &self.instant
    }

    /// Returns the `Temporal.PlainDateTime` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-plaindatetime-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn plain_date_time(&self) -> &StandardConstructor {
        &self.plain_date_time
    }

    /// Returns the `Temporal.PlainDate` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-plaindate-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn plain_date(&self) -> &StandardConstructor {
        &self.plain_date
    }

    /// Returns the `Temporal.PlainTime` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-plaintime-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn plain_time(&self) -> &StandardConstructor {
        &self.plain_time
    }

    /// Returns the `Temporal.PlainYearMonth` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-plainyearmonth-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn plain_year_month(&self) -> &StandardConstructor {
        &self.plain_year_month
    }

    /// Returns the `Temporal.PlainMonthDay` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-plainmonthday-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn plain_month_day(&self) -> &StandardConstructor {
        &self.plain_month_day
    }

    /// Returns the `Temporal.TimeZone` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-timezone-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn time_zone(&self) -> &StandardConstructor {
        &self.time_zone
    }

    /// Returns the `Temporal.Duration` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-duration-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn duration(&self) -> &StandardConstructor {
        &self.duration
    }

    /// Returns the `Temporal.ZonedDateTime` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-zoneddatetime-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn zoned_date_time(&self) -> &StandardConstructor {
        &self.zoned_date_time
    }

    /// Returns the `Temporal.Calendar` constructor.
    ///
    /// More information:
    ///  - [ECMAScript reference][spec]
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-calendar-constructor
    #[inline]
    #[must_use]
    #[cfg(feature = "temporal")]
    pub const fn calendar(&self) -> &StandardConstructor {
        &self.calendar
    }
}

/// Cached intrinsic objects
#[derive(Debug, Trace, Finalize)]
pub struct IntrinsicObjects {
    /// [`%Reflect%`](https://tc39.es/ecma262/#sec-reflect)
    reflect: JsObject,

    /// [`%Math%`](https://tc39.es/ecma262/#sec-math)
    math: JsObject,

    /// [`%JSON%`](https://tc39.es/ecma262/#sec-json)
    json: JsObject,

    /// [`%ThrowTypeError%`](https://tc39.es/ecma262/#sec-%throwtypeerror%)
    throw_type_error: JsFunction,

    /// [`%Array.prototype.values%`](https://tc39.es/ecma262/#sec-array.prototype.values)
    array_prototype_values: JsFunction,

    /// [`%Array.prototype.toString%`](https://tc39.es/ecma262/#sec-array.prototype.tostring)
    array_prototype_to_string: JsFunction,

    /// Cached iterator prototypes.
    iterator_prototypes: IteratorPrototypes,

    /// [`%GeneratorFunction.prototype.prototype%`](https://tc39.es/ecma262/#sec-properties-of-generator-prototype)
    generator: JsObject,

    /// [`%AsyncGeneratorFunction.prototype.prototype%`](https://tc39.es/ecma262/#sec-properties-of-asyncgenerator-prototype)
    async_generator: JsObject,

    /// [`%Atomics%`](https://tc39.es/ecma262/#sec-atomics)
    atomics: JsObject,

    /// [`%eval%`](https://tc39.es/ecma262/#sec-eval-x)
    eval: JsFunction,

    /// URI related functions
    uri_functions: UriFunctions,

    /// [`%isFinite%`](https://tc39.es/ecma262/#sec-isfinite-number)
    is_finite: JsFunction,

    /// [`%isNaN%`](https://tc39.es/ecma262/#sec-isnan-number)
    is_nan: JsFunction,

    /// [`%parseFloat%`](https://tc39.es/ecma262/#sec-parsefloat-string)
    parse_float: JsFunction,

    /// [`%parseInt%`](https://tc39.es/ecma262/#sec-parseint-string-radix)
    parse_int: JsFunction,

    /// [`%escape%`](https://tc39.es/ecma262/#sec-escape-string)
    #[cfg(feature = "annex-b")]
    escape: JsFunction,

    /// [`%unescape%`](https://tc39.es/ecma262/#sec-unescape-string)
    #[cfg(feature = "annex-b")]
    unescape: JsFunction,

    /// [`%Intl%`](https://tc39.es/ecma402/#intl-object)
    #[cfg(feature = "intl")]
    intl: JsObject<Intl>,

    /// [`%SegmentsPrototype%`](https://tc39.es/ecma402/#sec-%segmentsprototype%-object)
    #[cfg(feature = "intl")]
    segments_prototype: JsObject,

    /// [`%Temporal%`](https://tc39.es/proposal-temporal/#sec-temporal-objects)
    #[cfg(feature = "temporal")]
    temporal: JsObject,

    /// [`%Temporal.Now%`](https://tc39.es/proposal-temporal/#sec-temporal-now-object)
    #[cfg(feature = "temporal")]
    now: JsObject,
}

impl IntrinsicObjects {
    /// Creates a new set of uninitialized intrinsic objects.
    ///
    /// Creates all the required empty objects for every intrinsic object in this realm.
    ///
    /// To initialize all the intrinsic objects with their spec properties, see [`Realm::initialize`].
    ///
    /// [`Realm::initialize`]: crate::realm::Realm::initialize
    #[allow(clippy::unnecessary_wraps)]
    pub(crate) fn uninit() -> Option<Self> {
        Some(Self {
            reflect: JsObject::with_null_proto(),
            math: JsObject::with_null_proto(),
            json: JsObject::with_null_proto(),
            throw_type_error: JsFunction::empty_intrinsic_function(false),
            array_prototype_values: JsFunction::empty_intrinsic_function(false),
            array_prototype_to_string: JsFunction::empty_intrinsic_function(false),
            iterator_prototypes: IteratorPrototypes::default(),
            generator: JsObject::with_null_proto(),
            async_generator: JsObject::with_null_proto(),
            atomics: JsObject::with_null_proto(),
            eval: JsFunction::empty_intrinsic_function(false),
            uri_functions: UriFunctions::default(),
            is_finite: JsFunction::empty_intrinsic_function(false),
            is_nan: JsFunction::empty_intrinsic_function(false),
            parse_float: JsFunction::empty_intrinsic_function(false),
            parse_int: JsFunction::empty_intrinsic_function(false),
            #[cfg(feature = "annex-b")]
            escape: JsFunction::empty_intrinsic_function(false),
            #[cfg(feature = "annex-b")]
            unescape: JsFunction::empty_intrinsic_function(false),
            #[cfg(feature = "intl")]
            intl: JsObject::new_unique(None, Intl::new()?),
            #[cfg(feature = "intl")]
            segments_prototype: JsObject::with_null_proto(),
            #[cfg(feature = "temporal")]
            temporal: JsObject::with_null_proto(),
            #[cfg(feature = "temporal")]
            now: JsObject::with_null_proto(),
        })
    }

    /// Gets the [`%ThrowTypeError%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-%throwtypeerror%
    #[inline]
    #[must_use]
    pub fn throw_type_error(&self) -> JsFunction {
        self.throw_type_error.clone()
    }

    /// Gets the [`%Array.prototype.values%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-array.prototype.values
    #[inline]
    #[must_use]
    pub fn array_prototype_values(&self) -> JsFunction {
        self.array_prototype_values.clone()
    }

    /// Gets the [`%Array.prototype.toString%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-array.prototype.tostring
    #[inline]
    #[must_use]
    pub fn array_prototype_to_string(&self) -> JsFunction {
        self.array_prototype_to_string.clone()
    }

    /// Gets the cached iterator prototypes.
    #[inline]
    #[must_use]
    pub const fn iterator_prototypes(&self) -> &IteratorPrototypes {
        &self.iterator_prototypes
    }

    /// Gets the [`%GeneratorFunction.prototype.prototype%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-generator-objects
    #[inline]
    #[must_use]
    pub fn generator(&self) -> JsObject {
        self.generator.clone()
    }

    /// Gets the [`%AsyncGeneratorFunction.prototype.prototype%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-asyncgenerator-objects
    #[inline]
    #[must_use]
    pub fn async_generator(&self) -> JsObject {
        self.async_generator.clone()
    }

    /// Gets the [`%Atomics%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-atomics
    #[inline]
    #[must_use]
    pub fn atomics(&self) -> JsObject {
        self.atomics.clone()
    }

    /// Gets the [`%eval%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-eval-x
    #[inline]
    #[must_use]
    pub fn eval(&self) -> JsFunction {
        self.eval.clone()
    }

    /// Gets the URI intrinsic functions.
    #[inline]
    #[must_use]
    pub const fn uri_functions(&self) -> &UriFunctions {
        &self.uri_functions
    }

    /// Gets the [`%Reflect%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-reflect
    #[inline]
    #[must_use]
    pub fn reflect(&self) -> JsObject {
        self.reflect.clone()
    }

    /// Gets the [`%Math%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-math
    #[inline]
    #[must_use]
    pub fn math(&self) -> JsObject {
        self.math.clone()
    }

    /// Gets the [`%JSON%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-json
    #[inline]
    #[must_use]
    pub fn json(&self) -> JsObject {
        self.json.clone()
    }

    /// Gets the [`%isFinite%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-isfinite-number
    #[inline]
    #[must_use]
    pub fn is_finite(&self) -> JsFunction {
        self.is_finite.clone()
    }

    /// Gets the [`%isNaN%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-isnan-number
    #[inline]
    #[must_use]
    pub fn is_nan(&self) -> JsFunction {
        self.is_nan.clone()
    }

    /// Gets the [`%parseFloat%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-parsefloat-string
    #[inline]
    #[must_use]
    pub fn parse_float(&self) -> JsFunction {
        self.parse_float.clone()
    }

    /// Gets the [`%parseInt%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-parseint-string-radix
    #[inline]
    #[must_use]
    pub fn parse_int(&self) -> JsFunction {
        self.parse_int.clone()
    }

    /// Gets the [`%escape%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-escape-string
    #[must_use]
    #[cfg(feature = "annex-b")]
    #[inline]
    pub fn escape(&self) -> JsFunction {
        self.escape.clone()
    }

    /// Gets the [`%unescape%`][spec] intrinsic function.
    ///
    /// [spec]: https://tc39.es/ecma262/#sec-unescape-string
    #[must_use]
    #[cfg(feature = "annex-b")]
    #[inline]
    pub fn unescape(&self) -> JsFunction {
        self.unescape.clone()
    }

    /// Gets the [`%Intl%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/ecma402/#intl-object
    #[must_use]
    #[cfg(feature = "intl")]
    #[inline]
    pub fn intl(&self) -> JsObject<Intl> {
        self.intl.clone()
    }

    /// Gets the [`%SegmentsPrototype%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/ecma402/#sec-%segmentsprototype%-object
    #[must_use]
    #[cfg(feature = "intl")]
    pub fn segments_prototype(&self) -> JsObject {
        self.segments_prototype.clone()
    }

    /// Gets the [`%Temporal%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-objects
    #[cfg(feature = "temporal")]
    #[must_use]
    #[inline]
    pub fn temporal(&self) -> JsObject {
        self.temporal.clone()
    }

    /// Gets the [`%Temporal.Now%`][spec] intrinsic object.
    ///
    /// [spec]: https://tc39.es/proposal-temporal/#sec-temporal-now-object
    #[cfg(feature = "temporal")]
    #[must_use]
    #[inline]
    pub fn now(&self) -> JsObject {
        self.now.clone()
    }
}

/// Contains commonly used [`ObjectTemplate`]s.
#[derive(Debug, Trace, Finalize)]
pub(crate) struct ObjectTemplates {
    iterator_result: ObjectTemplate,
    ordinary_object: ObjectTemplate,
    array: ObjectTemplate,
    number: ObjectTemplate,
    string: ObjectTemplate,
    symbol: ObjectTemplate,
    bigint: ObjectTemplate,
    boolean: ObjectTemplate,

    regexp: ObjectTemplate,
    regexp_without_proto: ObjectTemplate,

    unmapped_arguments: ObjectTemplate,
    mapped_arguments: ObjectTemplate,

    function_with_prototype: ObjectTemplate,
    function_prototype: ObjectTemplate,

    function: ObjectTemplate,
    async_function: ObjectTemplate,
    generator_function: ObjectTemplate,
    async_generator_function: ObjectTemplate,

    function_without_proto: ObjectTemplate,
    function_with_prototype_without_proto: ObjectTemplate,

    namespace: ObjectTemplate,

    with_resolvers: ObjectTemplate,

    wait_async: ObjectTemplate,
}

impl ObjectTemplates {
    pub(crate) fn new(root_shape: &RootShape, constructors: &StandardConstructors) -> Self {
        let root_shape = root_shape.shape();

        // pre-initialize used shapes.
        let ordinary_object =
            ObjectTemplate::with_prototype(root_shape, constructors.object().prototype());
        let mut array = ObjectTemplate::new(root_shape);
        let length_property_key: PropertyKey = js_string!("length").into();
        array.property(
            length_property_key.clone(),
            Attribute::WRITABLE | Attribute::PERMANENT | Attribute::NON_ENUMERABLE,
        );
        array.set_prototype(constructors.array().prototype());

        let number = ObjectTemplate::with_prototype(root_shape, constructors.number().prototype());
        let symbol = ObjectTemplate::with_prototype(root_shape, constructors.symbol().prototype());
        let bigint = ObjectTemplate::with_prototype(root_shape, constructors.bigint().prototype());
        let boolean =
            ObjectTemplate::with_prototype(root_shape, constructors.boolean().prototype());
        let mut string = ObjectTemplate::new(root_shape);
        string.property(
            length_property_key.clone(),
            Attribute::READONLY | Attribute::PERMANENT | Attribute::NON_ENUMERABLE,
        );
        string.set_prototype(constructors.string().prototype());

        let mut regexp_without_proto = ObjectTemplate::new(root_shape);
        regexp_without_proto.property(js_string!("lastIndex").into(), Attribute::WRITABLE);

        let mut regexp = regexp_without_proto.clone();
        regexp.set_prototype(constructors.regexp().prototype());

        let name_property_key: PropertyKey = js_string!("name").into();
        let mut function = ObjectTemplate::new(root_shape);
        function.property(
            length_property_key.clone(),
            Attribute::READONLY | Attribute::CONFIGURABLE | Attribute::NON_ENUMERABLE,
        );
        function.property(
            name_property_key,
            Attribute::READONLY | Attribute::CONFIGURABLE | Attribute::NON_ENUMERABLE,
        );

        let function_without_proto = function.clone();
        let mut async_function = function.clone();
        let mut function_with_prototype = function.clone();

        function_with_prototype.property(
            PROTOTYPE.into(),
            Attribute::WRITABLE | Attribute::PERMANENT | Attribute::NON_ENUMERABLE,
        );
        let mut generator_function = function_with_prototype.clone();
        let mut async_generator_function = function_with_prototype.clone();

        let function_with_prototype_without_proto = function_with_prototype.clone();

        function.set_prototype(constructors.function().prototype());
        function_with_prototype.set_prototype(constructors.function().prototype());
        async_function.set_prototype(constructors.async_function().prototype());
        generator_function.set_prototype(constructors.generator_function().prototype());
        async_generator_function.set_prototype(constructors.async_generator_function().prototype());

        let mut function_prototype = ordinary_object.clone();
        function_prototype.property(
            CONSTRUCTOR.into(),
            Attribute::WRITABLE | Attribute::CONFIGURABLE | Attribute::NON_ENUMERABLE,
        );

        let mut unmapped_arguments = ordinary_object.clone();

        // 4. Perform DefinePropertyOrThrow(obj, "length", PropertyDescriptor { [[Value]]: 𝔽(len),
        // [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true }).
        unmapped_arguments.property(
            length_property_key,
            Attribute::WRITABLE | Attribute::NON_ENUMERABLE | Attribute::CONFIGURABLE,
        );

        // 7. Perform ! DefinePropertyOrThrow(obj, @@iterator, PropertyDescriptor {
        // [[Value]]: %Array.prototype.values%, [[Writable]]: true, [[Enumerable]]: false,
        // [[Configurable]]: true }).
        unmapped_arguments.property(
            JsSymbol::iterator().into(),
            Attribute::WRITABLE | Attribute::NON_ENUMERABLE | Attribute::CONFIGURABLE,
        );

        let mut mapped_arguments = unmapped_arguments.clone();

        // 8. Perform ! DefinePropertyOrThrow(obj, "callee", PropertyDescriptor {
        // [[Get]]: %ThrowTypeError%, [[Set]]: %ThrowTypeError%, [[Enumerable]]: false,
        // [[Configurable]]: false }).
        unmapped_arguments.accessor(
            js_string!("callee").into(),
            true,
            true,
            Attribute::NON_ENUMERABLE | Attribute::PERMANENT,
        );

        // 21. Perform ! DefinePropertyOrThrow(obj, "callee", PropertyDescriptor {
        // [[Value]]: func, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true }).
        mapped_arguments.property(
            js_string!("callee").into(),
            Attribute::WRITABLE | Attribute::NON_ENUMERABLE | Attribute::CONFIGURABLE,
        );

        let mut iterator_result = ordinary_object.clone();
        iterator_result.property(
            js_string!("value").into(),
            Attribute::WRITABLE | Attribute::CONFIGURABLE | Attribute::ENUMERABLE,
        );
        iterator_result.property(
            js_string!("done").into(),
            Attribute::WRITABLE | Attribute::CONFIGURABLE | Attribute::ENUMERABLE,
        );

        let mut namespace = ObjectTemplate::new(root_shape);
        namespace.property(JsSymbol::to_string_tag().into(), Attribute::empty());

        let with_resolvers = {
            let mut with_resolvers = ordinary_object.clone();

            with_resolvers
                // 4. Perform ! CreateDataPropertyOrThrow(obj, "promise", promiseCapability.[[Promise]]).
                .property(js_string!("promise").into(), Attribute::all())
                // 5. Perform ! CreateDataPropertyOrThrow(obj, "resolve", promiseCapability.[[Resolve]]).
                .property(js_string!("resolve").into(), Attribute::all())
                // 6. Perform ! CreateDataPropertyOrThrow(obj, "reject", promiseCapability.[[Reject]]).
                .property(js_string!("reject").into(), Attribute::all());

            with_resolvers
        };

        let wait_async = {
            let mut obj = ordinary_object.clone();

            obj.property(js_string!("async").into(), Attribute::all())
                .property(js_string!("value").into(), Attribute::all());

            obj
        };

        Self {
            iterator_result,
            ordinary_object,
            array,
            number,
            string,
            symbol,
            bigint,
            boolean,
            regexp,
            regexp_without_proto,
            unmapped_arguments,
            mapped_arguments,
            function_with_prototype,
            function_prototype,
            function,
            async_function,
            generator_function,
            async_generator_function,
            function_without_proto,
            function_with_prototype_without_proto,
            namespace,
            with_resolvers,
            wait_async,
        }
    }

    /// Cached iterator result template.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Object.prototype`
    /// 2. `"done"`: (`WRITABLE`, `CONFIGURABLE`, `ENUMERABLE`)
    /// 3. `"value"`: (`WRITABLE`, `CONFIGURABLE`, `ENUMERABLE`)
    pub(crate) const fn iterator_result(&self) -> &ObjectTemplate {
        &self.iterator_result
    }

    /// Cached ordinary object template.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Object.prototype`
    pub(crate) const fn ordinary_object(&self) -> &ObjectTemplate {
        &self.ordinary_object
    }

    /// Cached array object template.
    ///
    /// Transitions:
    ///
    /// 1. `"length"`: (`WRITABLE`, `PERMANENT`,`NON_ENUMERABLE`)
    /// 2. `__proto__`: `Array.prototype`
    pub(crate) const fn array(&self) -> &ObjectTemplate {
        &self.array
    }

    /// Cached number object template.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Number.prototype`
    pub(crate) const fn number(&self) -> &ObjectTemplate {
        &self.number
    }

    /// Cached string object template.
    ///
    /// Transitions:
    ///
    /// 1. `"length"`: (`READONLY`, `PERMANENT`,`NON_ENUMERABLE`)
    /// 2. `__proto__`: `String.prototype`
    pub(crate) const fn string(&self) -> &ObjectTemplate {
        &self.string
    }

    /// Cached symbol object template.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Symbol.prototype`
    pub(crate) const fn symbol(&self) -> &ObjectTemplate {
        &self.symbol
    }

    /// Cached bigint object template.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `BigInt.prototype`
    pub(crate) const fn bigint(&self) -> &ObjectTemplate {
        &self.bigint
    }

    /// Cached boolean object template.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Boolean.prototype`
    pub(crate) const fn boolean(&self) -> &ObjectTemplate {
        &self.boolean
    }

    /// Cached regexp object template.
    ///
    /// Transitions:
    ///
    /// 1. `"lastIndex"`: (`WRITABLE` , `PERMANENT`,`NON_ENUMERABLE`)
    pub(crate) const fn regexp(&self) -> &ObjectTemplate {
        &self.regexp
    }

    /// Cached regexp object template without `__proto__` template.
    ///
    /// Transitions:
    ///
    /// 1. `"lastIndex"`: (`WRITABLE` , `PERMANENT`,`NON_ENUMERABLE`)
    /// 2. `__proto__`: `RegExp.prototype`
    pub(crate) const fn regexp_without_proto(&self) -> &ObjectTemplate {
        &self.regexp_without_proto
    }

    /// Cached unmapped arguments object template.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Object.prototype`
    /// 2. `"length"`: (`WRITABLE`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `@@iterator`: (`WRITABLE`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 4. `get/set` `"callee"`: (`NON_ENUMERABLE`, `PERMANENT`)
    pub(crate) const fn unmapped_arguments(&self) -> &ObjectTemplate {
        &self.unmapped_arguments
    }

    /// Cached mapped arguments object template.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Object.prototype`
    /// 2. `"length"`: (`WRITABLE`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `@@iterator`: (`WRITABLE`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 4. `"callee"`: (`WRITABLE`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    pub(crate) const fn mapped_arguments(&self) -> &ObjectTemplate {
        &self.mapped_arguments
    }

    /// Cached function object with `"prototype"` property template.
    ///
    /// Transitions:
    ///
    /// 1. `"length"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 2. `"name"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `"prototype"`: (`WRITABLE`, `PERMANENT`, `NON_ENUMERABLE`)
    /// 4. `__proto__`: `Function.prototype`
    pub(crate) const fn function_with_prototype(&self) -> &ObjectTemplate {
        &self.function_with_prototype
    }

    /// Cached constructor function object template.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Object.prototype`
    /// 2. `"constructor"`: (`WRITABLE`, `CONFIGURABLE`, `NON_ENUMERABLE`)
    pub(crate) const fn function_prototype(&self) -> &ObjectTemplate {
        &self.function_prototype
    }

    /// Cached function object property template.
    ///
    /// Transitions:
    ///
    /// 1. `"length"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 2. `"name"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `__proto__`: `Function.prototype`
    pub(crate) const fn function(&self) -> &ObjectTemplate {
        &self.function
    }

    /// Cached function object property template.
    ///
    /// Transitions:
    ///
    /// 1. `"length"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 2. `"name"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `__proto__`: `AsyncFunction.prototype`
    pub(crate) const fn async_function(&self) -> &ObjectTemplate {
        &self.async_function
    }

    /// Cached function object property template.
    ///
    /// Transitions:
    ///
    /// 1. `"length"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 2. `"name"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `"prototype"`: (`WRITABLE`, `PERMANENT`, `NON_ENUMERABLE`)
    /// 4. `__proto__`: `GeneratorFunction.prototype`
    pub(crate) const fn generator_function(&self) -> &ObjectTemplate {
        &self.generator_function
    }

    /// Cached function object property template.
    ///
    /// Transitions:
    ///
    /// 1. `"length"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 2. `"name"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `"prototype"`: (`WRITABLE`, `PERMANENT`, `NON_ENUMERABLE`)
    /// 4. `__proto__`: `AsyncGeneratorFunction.prototype`
    pub(crate) const fn async_generator_function(&self) -> &ObjectTemplate {
        &self.async_generator_function
    }

    /// Cached function object without `__proto__` template.
    ///
    /// Transitions:
    ///
    /// 1. `"length"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 2. `"name"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    pub(crate) const fn function_without_proto(&self) -> &ObjectTemplate {
        &self.function_without_proto
    }

    /// Cached function object with `"prototype"` and without `__proto__` template.
    ///
    /// Transitions:
    ///
    /// 1. `"length"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 2. `"name"`: (`READONLY`, `NON_ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `"prototype"`: (`WRITABLE`, `PERMANENT`, `NON_ENUMERABLE`)
    pub(crate) const fn function_with_prototype_without_proto(&self) -> &ObjectTemplate {
        &self.function_with_prototype_without_proto
    }

    /// Cached namespace object template.
    ///
    /// Transitions:
    ///
    /// 1. `@@toStringTag`: (`READONLY`, `NON_ENUMERABLE`, `PERMANENT`)
    pub(crate) const fn namespace(&self) -> &ObjectTemplate {
        &self.namespace
    }

    /// Cached object from the `Promise.withResolvers` method.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Object.prototype`
    /// 2. `"promise"`: (`WRITABLE`, `ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `"resolve"`: (`WRITABLE`, `ENUMERABLE`, `CONFIGURABLE`)
    /// 4. `"reject"`: (`WRITABLE`, `ENUMERABLE`, `CONFIGURABLE`)
    pub(crate) const fn with_resolvers(&self) -> &ObjectTemplate {
        &self.with_resolvers
    }

    /// Cached object from the `Atomics.waitAsync` method.
    ///
    /// Transitions:
    ///
    /// 1. `__proto__`: `Object.prototype`
    /// 2. `"async"`: (`WRITABLE`, `ENUMERABLE`, `CONFIGURABLE`)
    /// 3. `"value"`: (`WRITABLE`, `ENUMERABLE`, `CONFIGURABLE`)
    pub(crate) const fn wait_async(&self) -> &ObjectTemplate {
        &self.wait_async
    }
}