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AK+Everywhere: Prepare Utf16View for integration with a UTF-16 string

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To prepare for an upcoming Utf16String, this migrates Utf16View to store
its data as a char16_t. Most function definitions are moved inline and
made constexpr.

This also adds a UDL to construct a Utf16View from a string literal:

    auto string = u"hello"sv;

This let's us remove the NTTP Utf16View constructor, as we have found
that such constructors bloat binary size quite a bit.
This commit is contained in:
Timothy Flynn 2025-06-26 12:52:23 -04:00 • committed by Tim Flynn
commit 86b1c78c1a
Notes: github-actions[bot] 2025-07-03 13:53:23 +00:00
17 changed files with 406 additions and 421 deletions
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2
Libraries/LibJS/Runtime/Utf16String.cpp
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@ -44,7 +44,7 @@ NonnullRefPtr<Utf16StringImpl> Utf16StringImpl::create(Utf16View const& view)
{
Utf16Data string;
string.ensure_capacity(view.length_in_code_units());
string.unchecked_append(view.data(), view.length_in_code_units());
string.unchecked_append(view.span().data(), view.length_in_code_units());
auto impl = create(move(string));
if (auto length_in_code_points = view.length_in_code_points_if_known(); length_in_code_points.has_value())