ladybird/Libraries/LibJS/Runtime/PropertyDescriptor.h
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

75 lines
3 KiB
C++

/*
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <AK/String.h>
#include <LibJS/Forward.h>
#include <LibJS/Runtime/Value.h>
namespace JS {
// 6.2.5 The Property Descriptor Specification Type, https://tc39.es/ecma262/#sec-property-descriptor-specification-type
Value from_property_descriptor(VM&, Optional<PropertyDescriptor> const&);
ThrowCompletionOr<PropertyDescriptor> to_property_descriptor(VM&, Value);
class PropertyDescriptor {
public:
[[nodiscard]] bool is_accessor_descriptor() const;
[[nodiscard]] bool is_data_descriptor() const;
[[nodiscard]] bool is_generic_descriptor() const;
[[nodiscard]] PropertyAttributes attributes() const;
void complete();
// Not a standard abstract operation, but "If every field in Desc is absent".
[[nodiscard]] bool is_empty() const
{
return !value.has_value() && !get.has_value() && !set.has_value() && !writable.has_value() && !enumerable.has_value() && !configurable.has_value() && !unimplemented.has_value();
}
Optional<Value> value {};
Optional<GC::Ptr<FunctionObject>> get {};
Optional<GC::Ptr<FunctionObject>> set {};
Optional<bool> writable {};
Optional<bool> enumerable {};
Optional<bool> configurable {};
Optional<bool> unimplemented {};
Optional<u32> property_offset {};
};
}
namespace AK {
template<>
struct Formatter<JS::PropertyDescriptor> : Formatter<StringView> {
ErrorOr<void> format(FormatBuilder& builder, JS::PropertyDescriptor const& property_descriptor)
{
Vector<String> parts;
if (property_descriptor.value.has_value())
TRY(parts.try_append(TRY(String::formatted("[[Value]]: {}", property_descriptor.value->to_string_without_side_effects()))));
if (property_descriptor.get.has_value())
TRY(parts.try_append(TRY(String::formatted("[[Get]]: JS::Function* @ {:p}", property_descriptor.get->ptr()))));
if (property_descriptor.set.has_value())
TRY(parts.try_append(TRY(String::formatted("[[Set]]: JS::Function* @ {:p}", property_descriptor.set->ptr()))));
if (property_descriptor.writable.has_value())
TRY(parts.try_append(TRY(String::formatted("[[Writable]]: {}", *property_descriptor.writable))));
if (property_descriptor.enumerable.has_value())
TRY(parts.try_append(TRY(String::formatted("[[Enumerable]]: {}", *property_descriptor.enumerable))));
if (property_descriptor.configurable.has_value())
TRY(parts.try_append(TRY(String::formatted("[[Configurable]]: {}", *property_descriptor.configurable))));
if (property_descriptor.unimplemented.has_value())
TRY(parts.try_append(TRY(String::formatted("[[Unimplemented]]: {}", *property_descriptor.unimplemented))));
return Formatter<StringView>::format(builder, TRY(String::formatted("PropertyDescriptor {{ {} }}", TRY(String::join(", "sv, parts)))));
}
};
}