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LibJS: Move intrinsics to the realm

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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 :^)
This commit is contained in:
Linus Groh 2022-08-27 00:54:55 +01:00
parent 84c4b66721
commit 50428ea8d2
217 changed files with 1305 additions and 1039 deletions
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20
Userland/Libraries/LibJS/Runtime/FunctionConstructor.cpp
View file

@ -20,7 +20,7 @@
namespace JS {
FunctionConstructor::FunctionConstructor(Realm& realm)
: NativeFunction(vm().names.Function.as_string(), *realm.global_object().function_prototype())
: NativeFunction(vm().names.Function.as_string(), *realm.intrinsics().function_prototype())
{
}
@ -30,7 +30,7 @@ void FunctionConstructor::initialize(Realm& realm)
NativeFunction::initialize(realm);
// 20.2.2.2 Function.prototype, https://tc39.es/ecma262/#sec-function.prototype
define_direct_property(vm.names.prototype, realm.global_object().function_prototype(), 0);
define_direct_property(vm.names.prototype, realm.intrinsics().function_prototype(), 0);
define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
}
@ -49,7 +49,7 @@ ThrowCompletionOr<ECMAScriptFunctionObject*> FunctionConstructor::create_dynamic
new_target = &constructor;
StringView prefix;
Object* (GlobalObject::*fallback_prototype)() = nullptr;
Object* (Intrinsics::*fallback_prototype)() = nullptr;
switch (kind) {
// 4. If kind is normal, then
@ -62,7 +62,7 @@ ThrowCompletionOr<ECMAScriptFunctionObject*> FunctionConstructor::create_dynamic
// d. Let parameterSym be the grammar symbol FormalParameters[~Yield, ~Await].
// e. Let fallbackProto be "%Function.prototype%".
fallback_prototype = &GlobalObject::function_prototype;
fallback_prototype = &Intrinsics::function_prototype;
break;
// 5. Else if kind is generator, then
@ -75,7 +75,7 @@ ThrowCompletionOr<ECMAScriptFunctionObject*> FunctionConstructor::create_dynamic
// d. Let parameterSym be the grammar symbol FormalParameters[+Yield, ~Await].
// e. Let fallbackProto be "%GeneratorFunction.prototype%".
fallback_prototype = &GlobalObject::generator_function_prototype;
fallback_prototype = &Intrinsics::generator_function_prototype;
break;
// 6. Else if kind is async, then
@ -88,7 +88,7 @@ ThrowCompletionOr<ECMAScriptFunctionObject*> FunctionConstructor::create_dynamic
// d. Let parameterSym be the grammar symbol FormalParameters[~Yield, +Await].
// e. Let fallbackProto be "%AsyncFunction.prototype%".
fallback_prototype = &GlobalObject::async_function_prototype;
fallback_prototype = &Intrinsics::async_function_prototype;
break;
// 7. Else,
@ -103,7 +103,7 @@ ThrowCompletionOr<ECMAScriptFunctionObject*> FunctionConstructor::create_dynamic
// e. Let parameterSym be the grammar symbol FormalParameters[+Yield, +Await].
// f. Let fallbackProto be "%AsyncGeneratorFunction.prototype%".
fallback_prototype = &GlobalObject::async_generator_function_prototype;
fallback_prototype = &Intrinsics::async_generator_function_prototype;
break;
default:
@ -232,7 +232,7 @@ ThrowCompletionOr<ECMAScriptFunctionObject*> FunctionConstructor::create_dynamic
// 30. If kind is generator, then
if (kind == FunctionKind::Generator) {
// a. Let prototype be OrdinaryObjectCreate(%GeneratorFunction.prototype.prototype%).
prototype = Object::create(realm, realm.global_object().generator_function_prototype_prototype());
prototype = Object::create(realm, realm.intrinsics().generator_function_prototype_prototype());
// b. Perform ! DefinePropertyOrThrow(F, "prototype", PropertyDescriptor { [[Value]]: prototype, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false }).
function->define_direct_property(vm.names.prototype, prototype, Attribute::Writable);
@ -240,7 +240,7 @@ ThrowCompletionOr<ECMAScriptFunctionObject*> FunctionConstructor::create_dynamic
// 31. Else if kind is asyncGenerator, then
else if (kind == FunctionKind::AsyncGenerator) {
// a. Let prototype be OrdinaryObjectCreate(%AsyncGeneratorFunction.prototype.prototype%).
prototype = Object::create(realm, realm.global_object().async_generator_function_prototype_prototype());
prototype = Object::create(realm, realm.intrinsics().async_generator_function_prototype_prototype());
// b. Perform ! DefinePropertyOrThrow(F, "prototype", PropertyDescriptor { [[Value]]: prototype, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false }).
function->define_direct_property(vm.names.prototype, prototype, Attribute::Writable);
@ -248,7 +248,7 @@ ThrowCompletionOr<ECMAScriptFunctionObject*> FunctionConstructor::create_dynamic
// 32. Else if kind is normal, perform MakeConstructor(F).
else if (kind == FunctionKind::Normal) {
// FIXME: Implement MakeConstructor
prototype = Object::create(realm, realm.global_object().object_prototype());
prototype = Object::create(realm, realm.intrinsics().object_prototype());
prototype->define_direct_property(vm.names.constructor, function, Attribute::Writable | Attribute::Configurable);
function->define_direct_property(vm.names.prototype, prototype, Attribute::Writable);
}