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3c74dc9f4d
This patch adds two macros to declare per-type allocators: - JS_DECLARE_ALLOCATOR(TypeName) - JS_DEFINE_ALLOCATOR(TypeName) When used, they add a type-specific CellAllocator that the Heap will delegate allocation requests to. The result of this is that GC objects of the same type always end up within the same HeapBlock, drastically reducing the ability to perform type confusion attacks. It also improves HeapBlock utilization, since each block now has cells sized exactly to the type used within that block. (Previously we only had a handful of block sizes available, and most GC allocations ended up with a large amount of slack in their tails.) There is a small performance hit from this, but I'm sure we can make up for it elsewhere. Note that the old size-based allocators still exist, and we fall back to them for any type that doesn't have its own CellAllocator.
86 lines
5 KiB
C++
86 lines
5 KiB
C++
/*
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* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
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* Copyright (c) 2021-2023, 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 <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibJS/Runtime/Temporal/PlainDate.h>
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#include <LibJS/Runtime/Temporal/PlainMonthDay.h>
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#include <LibJS/Runtime/Temporal/PlainYearMonth.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS::Temporal {
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class Calendar final : public Object {
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JS_OBJECT(Calendar, Object);
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JS_DECLARE_ALLOCATOR(Calendar);
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public:
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virtual ~Calendar() override = default;
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[[nodiscard]] String const& identifier() const { return m_identifier; }
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private:
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Calendar(String identifier, Object& prototype);
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// 12.5 Properties of Temporal.Calendar Instances, https://tc39.es/proposal-temporal/#sec-properties-of-temporal-calendar-instances
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String m_identifier; // [[Identifier]]
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};
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// 14.2 The Year-Week Record Specification Type, https://tc39.es/proposal-temporal/#sec-year-week-record-specification-type
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struct YearWeekRecord {
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u8 week { 0 };
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i32 year { 0 };
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};
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bool is_builtin_calendar(StringView identifier);
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ReadonlySpan<StringView> available_calendars();
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ThrowCompletionOr<Calendar*> create_temporal_calendar(VM&, String const& identifier, FunctionObject const* new_target = nullptr);
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ThrowCompletionOr<Calendar*> get_builtin_calendar(VM&, String const& identifier);
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Calendar* get_iso8601_calendar(VM&);
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ThrowCompletionOr<Vector<String>> calendar_fields(VM&, Object& calendar, Vector<StringView> const& field_names);
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ThrowCompletionOr<Object*> calendar_merge_fields(VM&, Object& calendar, Object& fields, Object& additional_fields);
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ThrowCompletionOr<PlainDate*> calendar_date_add(VM&, Object& calendar, Value date, Duration&, Object* options = nullptr, FunctionObject* date_add = nullptr);
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ThrowCompletionOr<Duration*> calendar_date_until(VM&, Object& calendar, Value one, Value two, Object& options, FunctionObject* date_until = nullptr);
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ThrowCompletionOr<double> calendar_year(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_month(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<String> calendar_month_code(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_day(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_day_of_week(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_day_of_year(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_week_of_year(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_year_of_week(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_days_in_week(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_days_in_month(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_days_in_year(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<double> calendar_months_in_year(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<Value> calendar_in_leap_year(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<Value> calendar_era(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<Value> calendar_era_year(VM&, Object& calendar, Object& date_like);
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ThrowCompletionOr<Object*> to_temporal_calendar(VM&, Value);
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ThrowCompletionOr<Object*> to_temporal_calendar_with_iso_default(VM&, Value);
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ThrowCompletionOr<Object*> get_temporal_calendar_with_iso_default(VM&, Object&);
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ThrowCompletionOr<PlainDate*> calendar_date_from_fields(VM&, Object& calendar, Object const& fields, Object const* options = nullptr);
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ThrowCompletionOr<PlainYearMonth*> calendar_year_month_from_fields(VM&, Object& calendar, Object const& fields, Object const* options = nullptr);
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ThrowCompletionOr<PlainMonthDay*> calendar_month_day_from_fields(VM&, Object& calendar, Object const& fields, Object const* options = nullptr);
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ThrowCompletionOr<String> maybe_format_calendar_annotation(VM&, Object const* calendar_object, StringView show_calendar);
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ThrowCompletionOr<String> format_calendar_annotation(VM&, StringView id, StringView show_calendar);
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ThrowCompletionOr<bool> calendar_equals(VM&, Object& one, Object& two);
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ThrowCompletionOr<Object*> consolidate_calendars(VM&, Object& one, Object& two);
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u8 iso_days_in_month(i32 year, u8 month);
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YearWeekRecord to_iso_week_of_year(i32 year, u8 month, u8 day);
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ThrowCompletionOr<String> iso_month_code(VM&, u8 month);
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ThrowCompletionOr<double> resolve_iso_month(VM&, Object const& fields);
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ThrowCompletionOr<ISODateRecord> iso_date_from_fields(VM&, Object const& fields, Object const& options);
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ThrowCompletionOr<ISOYearMonth> iso_year_month_from_fields(VM&, Object const& fields, Object const& options);
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ThrowCompletionOr<ISOMonthDay> iso_month_day_from_fields(VM&, Object const& fields, Object const& options);
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ThrowCompletionOr<Object*> default_merge_calendar_fields(VM&, Object const& fields, Object const& additional_fields);
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u16 to_iso_day_of_year(i32 year, u8 month, u8 day);
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u8 to_iso_day_of_week(i32 year, u8 month, u8 day);
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}
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