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LibJS: Make intrinsics getters return NonnullGCPtr

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Some of these are allocated upon initialization of the intrinsics, and
some lazily, but in neither case the getters actually return a nullptr.

This saves us a whole bunch of pointer dereferences (as NonnullGCPtr has
an `operator T&()`), and also has the interesting side effect of forcing
us to explicitly use the FunctionObject& overload of call(), as passing
a NonnullGCPtr is ambigous - it could implicitly be turned into a Value
_or_ a FunctionObject& (so we have to dereference manually).
This commit is contained in:
Linus Groh 2023-04-13 00:47:15 +02:00
parent ed9e2366da
commit b84f8fb55b
182 changed files with 564 additions and 567 deletions
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10
Userland/Libraries/LibJS/Runtime/AbstractOperations.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2020-2022, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2020-2023, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
@ -364,7 +364,7 @@ bool validate_and_apply_property_descriptor(Object* object, PropertyKey const& p
}
// 10.1.14 GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto ), https://tc39.es/ecma262/#sec-getprototypefromconstructor
ThrowCompletionOr<Object*> get_prototype_from_constructor(VM& vm, FunctionObject const& constructor, Object* (Intrinsics::*intrinsic_default_prototype)())
ThrowCompletionOr<Object*> get_prototype_from_constructor(VM& vm, FunctionObject const& constructor, NonnullGCPtr<Object> (Intrinsics::*intrinsic_default_prototype)())
{
// 1. Assert: intrinsicDefaultProto is this specification's name of an intrinsic object. The corresponding object must be an intrinsic that is intended to be used as the [[Prototype]] value of an object.
@ -1075,11 +1075,11 @@ Object* create_unmapped_arguments_object(VM& vm, Span<Value> arguments)
}
// 7. Perform ! DefinePropertyOrThrow(obj, @@iterator, PropertyDescriptor { [[Value]]: %Array.prototype.values%, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true }).
auto* array_prototype_values = realm.intrinsics().array_prototype_values_function();
auto array_prototype_values = realm.intrinsics().array_prototype_values_function();
MUST(object->define_property_or_throw(*vm.well_known_symbol_iterator(), { .value = array_prototype_values, .writable = true, .enumerable = false, .configurable = true }));
// 8. Perform ! DefinePropertyOrThrow(obj, "callee", PropertyDescriptor { [[Get]]: %ThrowTypeError%, [[Set]]: %ThrowTypeError%, [[Enumerable]]: false, [[Configurable]]: false }).
auto* throw_type_error = realm.intrinsics().throw_type_error_function();
auto throw_type_error = realm.intrinsics().throw_type_error_function();
MUST(object->define_property_or_throw(vm.names.callee, { .get = throw_type_error, .set = throw_type_error, .enumerable = false, .configurable = false }));
// 9. Return obj.
@ -1158,7 +1158,7 @@ Object* create_mapped_arguments_object(VM& vm, FunctionObject& function, Vector<
}
// 20. Perform ! DefinePropertyOrThrow(obj, @@iterator, PropertyDescriptor { [[Value]]: %Array.prototype.values%, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true }).
auto* array_prototype_values = realm.intrinsics().array_prototype_values_function();
auto array_prototype_values = realm.intrinsics().array_prototype_values_function();
MUST(object->define_property_or_throw(*vm.well_known_symbol_iterator(), { .value = array_prototype_values, .writable = true, .enumerable = false, .configurable = true }));
// 21. Perform ! DefinePropertyOrThrow(obj, "callee", PropertyDescriptor { [[Value]]: func, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true }).