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