b6bef6b688
Produce JS-visible string results as UTF-16 at their source, including numeric formatting, BigInt and BigFraction formatting, URI encoding, console formatting, parser errors, regular expression errors, Intl and Temporal records, LibUnicode locale boundaries, and LibWeb bindings. Handle fractional radix formatting through the UTF-16 builder view.
129 lines
3.6 KiB
C++
129 lines
3.6 KiB
C++
/*
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* Copyright (c) 2020-2025, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 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 <AK/StringView.h>
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#include <AK/Utf16String.h>
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#include <LibGC/CellAllocator.h>
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#include <LibJS/Export.h>
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#include <LibJS/Forward.h>
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#include <LibJS/Heap/Cell.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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class JS_API PrimitiveString : public Cell {
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GC_CELL(PrimitiveString, Cell);
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GC_DECLARE_ALLOCATOR(PrimitiveString);
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public:
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static constexpr bool OVERRIDES_FINALIZE = true;
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[[nodiscard]] static GC::Ref<PrimitiveString> create(VM&, Utf16String const&);
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[[nodiscard]] static GC::Ref<PrimitiveString> create(VM&, Utf16View const&);
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[[nodiscard]] static GC::Ref<PrimitiveString> create(VM&, Utf16FlyString const&);
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[[nodiscard]] static GC::Ref<PrimitiveString> create(VM&, PrimitiveString&, PrimitiveString&);
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[[nodiscard]] static GC::Ref<PrimitiveString> create(VM&, PrimitiveString const&, size_t code_unit_offset, size_t code_unit_length);
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[[nodiscard]] static GC::Ref<PrimitiveString> create_from_unsigned_integer(VM&, u64);
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virtual ~PrimitiveString() override;
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PrimitiveString(PrimitiveString const&) = delete;
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PrimitiveString& operator=(PrimitiveString const&) = delete;
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bool is_empty() const;
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[[nodiscard]] Utf16String utf16_string() const;
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[[nodiscard]] Utf16View utf16_string_view() const;
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bool has_utf16_string() const { return m_utf16_string.has_value(); }
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size_t length_in_utf16_code_units() const;
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ThrowCompletionOr<Optional<Value>> get(VM&, PropertyKey const&) const;
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[[nodiscard]] bool operator==(PrimitiveString const&) const;
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protected:
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enum class DeferredKind : u8 {
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None,
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Rope,
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Substring,
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};
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explicit PrimitiveString(DeferredKind deferred_kind)
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: m_deferred_kind(deferred_kind)
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{
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}
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mutable DeferredKind m_deferred_kind { DeferredKind::None };
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mutable Optional<Utf16String> m_utf16_string;
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bool m_utf16_string_is_in_cache { false };
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private:
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friend class RopeString;
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friend class Substring;
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virtual void finalize() override;
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virtual size_t external_memory_size() const override;
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explicit PrimitiveString(Utf16String);
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void resolve_if_needed() const;
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Optional<StringView> short_flat_string_storage_view() const;
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static GC::Ptr<PrimitiveString> try_create_short_flat_concatenated_string(VM&, PrimitiveString const& lhs, PrimitiveString const& rhs);
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};
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class RopeString final : public PrimitiveString {
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GC_CELL(RopeString, PrimitiveString);
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GC_DECLARE_ALLOCATOR(RopeString);
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public:
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virtual ~RopeString() override;
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private:
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friend class PrimitiveString;
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explicit RopeString(GC::Ref<PrimitiveString>, GC::Ref<PrimitiveString>);
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virtual void visit_edges(Visitor&) override;
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void resolve() const;
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mutable GC::Ptr<PrimitiveString> m_lhs;
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mutable GC::Ptr<PrimitiveString> m_rhs;
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};
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class Substring final : public PrimitiveString {
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GC_CELL(Substring, PrimitiveString);
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GC_DECLARE_ALLOCATOR(Substring);
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public:
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virtual ~Substring() override;
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private:
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friend class PrimitiveString;
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explicit Substring(GC::Ref<PrimitiveString>, size_t code_unit_offset, size_t code_unit_length);
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virtual void visit_edges(Visitor&) override;
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void resolve() const;
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mutable GC::Ptr<PrimitiveString> m_source_string;
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size_t m_code_unit_offset { 0 };
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size_t m_code_unit_length { 0 };
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};
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}
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