mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 22:07:35 +00:00
LibJS: Add slot [[PrivateElements]] and related methods to Object
This commit is contained in:
parent
13ead80ee6
commit
d94b5e511f
3 changed files with 124 additions and 0 deletions
|
@ -10,6 +10,7 @@
|
|||
#include <LibJS/Runtime/AbstractOperations.h>
|
||||
#include <LibJS/Runtime/Accessor.h>
|
||||
#include <LibJS/Runtime/Array.h>
|
||||
#include <LibJS/Runtime/ECMAScriptFunctionObject.h>
|
||||
#include <LibJS/Runtime/Error.h>
|
||||
#include <LibJS/Runtime/GlobalObject.h>
|
||||
#include <LibJS/Runtime/NativeFunction.h>
|
||||
|
@ -466,6 +467,100 @@ ThrowCompletionOr<Object*> Object::copy_data_properties(Value source, HashTable<
|
|||
return this;
|
||||
}
|
||||
|
||||
// 7.3.26 PrivateElementFind ( O, P ), https://tc39.es/ecma262/#sec-privateelementfind
|
||||
PrivateElement* Object::private_element_find(PrivateName const& name)
|
||||
{
|
||||
auto element = m_private_elements.find_if([&](auto const& element) {
|
||||
return element.key == name;
|
||||
});
|
||||
|
||||
if (element.is_end())
|
||||
return nullptr;
|
||||
|
||||
return &(*element);
|
||||
}
|
||||
|
||||
// 7.3.27 PrivateFieldAdd ( O, P, value ), https://tc39.es/ecma262/#sec-privatefieldadd
|
||||
ThrowCompletionOr<void> Object::private_field_add(PrivateName const& name, Value value)
|
||||
{
|
||||
if (auto* entry = private_element_find(name); entry)
|
||||
return vm().throw_completion<TypeError>(global_object(), ErrorType::PrivateFieldAlreadyDeclared, name.description);
|
||||
m_private_elements.empend(name, PrivateElement::Kind::Field, value);
|
||||
return {};
|
||||
}
|
||||
|
||||
// 7.3.28 PrivateMethodOrAccessorAdd ( O, method ), https://tc39.es/ecma262/#sec-privatemethodoraccessoradd
|
||||
ThrowCompletionOr<void> Object::private_method_or_accessor_add(PrivateElement element)
|
||||
{
|
||||
VERIFY(element.kind == PrivateElement::Kind::Method || element.kind == PrivateElement::Kind::Accessor);
|
||||
if (auto* entry = private_element_find(element.key); entry)
|
||||
return vm().throw_completion<TypeError>(global_object(), ErrorType::PrivateFieldAlreadyDeclared, element.key.description);
|
||||
m_private_elements.append(move(element));
|
||||
return {};
|
||||
}
|
||||
|
||||
// 7.3.29 PrivateGet ( O, P ), https://tc39.es/ecma262/#sec-privateget
|
||||
ThrowCompletionOr<Value> Object::private_get(PrivateName const& name)
|
||||
{
|
||||
auto* entry = private_element_find(name);
|
||||
if (!entry)
|
||||
return vm().throw_completion<TypeError>(global_object(), ErrorType::PrivateFieldDoesNotExistOnObject, name.description);
|
||||
|
||||
auto& value = entry->value;
|
||||
|
||||
if (entry->kind != PrivateElement::Kind::Accessor)
|
||||
return value;
|
||||
|
||||
VERIFY(value.is_accessor());
|
||||
auto* getter = value.as_accessor().getter();
|
||||
if (!getter)
|
||||
return vm().throw_completion<TypeError>(global_object(), ErrorType::PrivateFieldGetAccessorWithoutGetter, name.description);
|
||||
|
||||
// 8. Return ? Call(getter, Receiver).
|
||||
return TRY(vm().call(*getter, this));
|
||||
}
|
||||
|
||||
// 7.3.30 PrivateSet ( O, P, value ), https://tc39.es/ecma262/#sec-privateset
|
||||
ThrowCompletionOr<void> Object::private_set(PrivateName const& name, Value value)
|
||||
{
|
||||
auto* entry = private_element_find(name);
|
||||
if (!entry)
|
||||
return vm().throw_completion<TypeError>(global_object(), ErrorType::PrivateFieldDoesNotExistOnObject, name.description);
|
||||
|
||||
if (entry->kind == PrivateElement::Kind::Field) {
|
||||
entry->value = value;
|
||||
return {};
|
||||
} else if (entry->kind == PrivateElement::Kind::Method) {
|
||||
return vm().throw_completion<TypeError>(global_object(), ErrorType::PrivateFieldSetMethod, name.description);
|
||||
}
|
||||
|
||||
VERIFY(entry->kind == PrivateElement::Kind::Accessor);
|
||||
|
||||
auto& accessor = entry->value;
|
||||
VERIFY(accessor.is_accessor());
|
||||
auto* setter = accessor.as_accessor().setter();
|
||||
if (!setter)
|
||||
return vm().throw_completion<TypeError>(global_object(), ErrorType::PrivateFieldSetAccessorWithoutSetter, name.description);
|
||||
|
||||
TRY(vm().call(*setter, this, value));
|
||||
return {};
|
||||
}
|
||||
|
||||
// 7.3.31 DefineField ( receiver, fieldRecord ), https://tc39.es/ecma262/#sec-definefield
|
||||
ThrowCompletionOr<void> Object::define_field(Variant<PropertyName, PrivateName> name, ECMAScriptFunctionObject* initializer)
|
||||
{
|
||||
Value init_value = js_undefined();
|
||||
if (initializer)
|
||||
init_value = TRY(vm().call(*initializer, this));
|
||||
|
||||
if (auto* property_name_ptr = name.get_pointer<PropertyName>())
|
||||
TRY(create_data_property_or_throw(*property_name_ptr, init_value));
|
||||
else
|
||||
TRY(private_field_add(name.get<PrivateName>(), init_value));
|
||||
|
||||
return {};
|
||||
}
|
||||
|
||||
// 10.1 Ordinary Object Internal Methods and Internal Slots, https://tc39.es/ecma262/#sec-ordinary-object-internal-methods-and-internal-slots
|
||||
|
||||
// 10.1.1 [[GetPrototypeOf]] ( ), https://tc39.es/ecma262/#sec-ordinary-object-internal-methods-and-internal-slots-getprototypeof
|
||||
|
@ -1130,6 +1225,9 @@ void Object::visit_edges(Cell::Visitor& visitor)
|
|||
m_indexed_properties.for_each_value([&visitor](auto& value) {
|
||||
visitor.visit(value);
|
||||
});
|
||||
|
||||
for (auto& private_element : m_private_elements)
|
||||
visitor.visit(private_element.value);
|
||||
}
|
||||
|
||||
// 7.1.1.1 OrdinaryToPrimitive ( O, hint ), https://tc39.es/ecma262/#sec-ordinarytoprimitive
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue