mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 19:02:44 +00:00
a59ebdac2d
It turns out return a ThrowCompletionOr<T const&> is flawed, as the GCC expansion trick used with TRY will always make a copy. PrimitiveString is luckily the only such use case.
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/*
|
|
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
|
|
* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/DeprecatedString.h>
|
|
#include <AK/Optional.h>
|
|
#include <AK/StringView.h>
|
|
#include <LibJS/Forward.h>
|
|
#include <LibJS/Heap/Cell.h>
|
|
#include <LibJS/Runtime/Completion.h>
|
|
#include <LibJS/Runtime/Utf16String.h>
|
|
#include <LibJS/Runtime/Value.h>
|
|
|
|
namespace JS {
|
|
|
|
class PrimitiveString final : public Cell {
|
|
JS_CELL(PrimitiveString, Cell);
|
|
|
|
public:
|
|
[[nodiscard]] static NonnullGCPtr<PrimitiveString> create(VM&, Utf16String);
|
|
[[nodiscard]] static NonnullGCPtr<PrimitiveString> create(VM&, DeprecatedString);
|
|
[[nodiscard]] static NonnullGCPtr<PrimitiveString> create(VM&, PrimitiveString&, PrimitiveString&);
|
|
|
|
virtual ~PrimitiveString();
|
|
|
|
PrimitiveString(PrimitiveString const&) = delete;
|
|
PrimitiveString& operator=(PrimitiveString const&) = delete;
|
|
|
|
bool is_empty() const;
|
|
u32 hash() const;
|
|
|
|
ThrowCompletionOr<DeprecatedString> deprecated_string() const;
|
|
bool has_utf8_string() const { return m_utf8_string.has_value(); }
|
|
|
|
ThrowCompletionOr<Utf16String> utf16_string() const;
|
|
ThrowCompletionOr<Utf16View> utf16_string_view() const;
|
|
bool has_utf16_string() const { return m_utf16_string.has_value(); }
|
|
|
|
ThrowCompletionOr<Optional<Value>> get(VM&, PropertyKey const&) const;
|
|
|
|
private:
|
|
explicit PrimitiveString(PrimitiveString&, PrimitiveString&);
|
|
explicit PrimitiveString(DeprecatedString);
|
|
explicit PrimitiveString(Utf16String);
|
|
|
|
virtual void visit_edges(Cell::Visitor&) override;
|
|
|
|
ThrowCompletionOr<void> resolve_rope_if_needed() const;
|
|
|
|
mutable bool m_is_rope { false };
|
|
|
|
mutable PrimitiveString* m_lhs { nullptr };
|
|
mutable PrimitiveString* m_rhs { nullptr };
|
|
|
|
mutable Optional<DeprecatedString> m_utf8_string;
|
|
mutable Optional<Utf16String> m_utf16_string;
|
|
};
|
|
|
|
}
|