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/*
* Copyright (c) 2021-2023, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/StringView.h>
#include <LibJS/Runtime/Utf16String.h>
namespace JS {
namespace Detail {
static NonnullRefPtr<Utf16StringImpl> the_empty_utf16_string()
{
static NonnullRefPtr<Utf16StringImpl> empty_string = Utf16StringImpl::create();
return empty_string;
}
Utf16StringImpl::Utf16StringImpl(Utf16Data string)
: m_string(move(string))
{
}
NonnullRefPtr<Utf16StringImpl> Utf16StringImpl::create()
{
return adopt_ref(*new Utf16StringImpl());
}
NonnullRefPtr<Utf16StringImpl> Utf16StringImpl::create(Utf16Data string)
{
return adopt_ref(*new Utf16StringImpl(move(string)));
}
NonnullRefPtr<Utf16StringImpl> Utf16StringImpl::create(StringView string)
{
return create(AK::utf8_to_utf16(string).release_value_but_fixme_should_propagate_errors());
}
NonnullRefPtr<Utf16StringImpl> Utf16StringImpl::create(Utf16View const& view)
{
Utf16Data string;
string.ensure_capacity(view.length_in_code_units());
string.append(view.data(), view.length_in_code_units());
return create(move(string));
}
Utf16Data const& Utf16StringImpl::string() const
{
return m_string;
}
Utf16View Utf16StringImpl::view() const
{
return Utf16View { m_string };
}
}
Utf16String::Utf16String()
: m_string(Detail::the_empty_utf16_string())
{
}
Utf16String::Utf16String(Utf16Data string)
: m_string(Detail::Utf16StringImpl::create(move(string)))
{
}
Utf16String::Utf16String(StringView string)
: m_string(Detail::Utf16StringImpl::create(move(string)))
{
}
Utf16String::Utf16String(Utf16View const& string)
: m_string(Detail::Utf16StringImpl::create(move(string)))
{
}
Utf16Data const& Utf16String::string() const
{
return m_string->string();
}
Utf16View Utf16String::view() const
{
return m_string->view();
}
Utf16View Utf16String::substring_view(size_t code_unit_offset, size_t code_unit_length) const
{
return view().substring_view(code_unit_offset, code_unit_length);
}
Utf16View Utf16String::substring_view(size_t code_unit_offset) const
{
return view().substring_view(code_unit_offset);
}
DeprecatedString Utf16String::to_utf8() const
{
return view().to_utf8(Utf16View::AllowInvalidCodeUnits::Yes);
}
u16 Utf16String::code_unit_at(size_t index) const
{
return view().code_unit_at(index);
}
size_t Utf16String::length_in_code_units() const
{
return view().length_in_code_units();
}
bool Utf16String::is_empty() const
{
return view().is_empty();
}
}
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