This removes the requirement of having a global object that actually
inherits from JS::GlobalObject, which is now a perfectly valid scenario.
With the upcoming removal of wrapper objects in LibWeb, the HTML::Window
object will inherit from DOM::EventTarget, which means it cannot also
inherit from JS::GlobalObject.
The object is passed directly to NewObjectEnvironment, which has no
requirement for this being a JS::GlobalObject. This is needed for the
next change, which will make Realm store a plain Object as for the
global object as well.
This will allow us to move the underlying console from GlobalObject to
ConsoleObject without still having to do a 'console' property lookup on
the GlobalObject.
Since LibUnicode depends on this data it used to include
Intl/AbstractOperations which in turn includes a number of other LibJS
headers. By moving this to its own header with minimal includes we can
save on rebuilding LibUnicode for unrelated LibJS header changes.
Intrinsics, i.e. mostly constructor and prototype objects, but also
things like empty and new object shape now live on a new heap-allocated
JS::Intrinsics object, thus completing the long journey of taking all
the magic away from the global object.
This represents the Realm's [[Intrinsics]] slot in the spec and matches
its existing [[GlobalObject]] / [[GlobalEnv]] slots in terms of
architecture.
In the majority of cases it should now be possibly to fully allocate a
regular object without the global object existing, and in fact that's
what we do now - the realm is allocated before the global object, and
the intrinsics between both :^)
Instead we just use a specific constructor. With this set of
constructors using curly braces for constructing is highly recommended.
As then it will not do too many implicit conversions which could lead to
unexpected loss of data or calling the much slower double constructor.
Also to ensure we don't feed (Un)SignedBigInteger infinities we throw
RangeError earlier for Durations.
This is an editorial change in the Temporal spec.
Now that this is spec'd as either an Object or undefined, we can change
the parameter type from arbitrary JS::Value to JS::Object*.
See: cdfcffd
This is a normative change in the ECMA-262 spec. See:
35b7eb2
Note there is a bit of weirdness between the mainline spec and the set
notation proposal as the latter has not been updated with this change.
For now, this implements what the spec PR and other prototypes indicate
how the proposal will behave.
Although this is much more complicated it does not seem to impact
performance that much even when looking only at values in which the
previous casting to i32 was correct.
For the fuzzer build isnan was not usable in a constexpr context however
__builtin_isnan seems to always be.
Also while we're here add my name to the copyright since I forgot after
the Value rewrite.
- Prefer VM::current_realm() over GlobalObject::associated_realm()
- Prefer VM::heap() over GlobalObject::heap()
- Prefer Cell::vm() over Cell::global_object()
- Prefer Wrapper::vm() over Wrapper::global_object()
- Inline Realm::global_object() calls used to access intrinsics as they
will later perform a direct lookup without going through the global
object
This is needed so that the allocated NativeFunction receives the correct
realm, usually forwarded from the Object's initialize() function, rather
than using the current realm.
Global object initialization is tightly coupled to realm creation, so
simply pass it to the function instead of relying on the non-standard
'associated realm' concept, which I'd like to remove later.
This works essentially the same way as regular Object::initialize() now.
Additionally this allows us to forward the realm to GlobalObject's
add_constructor() / initialize_constructor() helpers, so they set the
correct realm on the allocated constructor function object.
