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LibJS: Replace Vector<u16> usage in PrimitiveString wth Utf16String

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This commit does not go out of its way to reduce copying of the string
data yet, but is a minimum set of changes to compile LibJS after making
PrimitiveString hold a Utf16String.
This commit is contained in:
Timothy Flynn 2021-08-09 09:06:45 -04:00 • committed by Andreas Kling
parent 02e7dceb96
commit c1e99fca1a
11 changed files with 80 additions and 87 deletions
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32
Userland/Libraries/LibJS/Runtime/PrimitiveString.cpp
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@ -17,7 +17,7 @@ PrimitiveString::PrimitiveString(String string)
{
}
PrimitiveString::PrimitiveString(Vector<u16> string)
PrimitiveString::PrimitiveString(Utf16String string)
: m_utf16_string(move(string))
, m_has_utf16_string(true)
{
@ -30,16 +30,16 @@ PrimitiveString::~PrimitiveString()
String const& PrimitiveString::string() const
{
if (!m_has_utf8_string) {
m_utf8_string = utf16_string_view().to_utf8(Utf16View::AllowInvalidCodeUnits::Yes);
m_utf8_string = m_utf16_string.to_utf8();
m_has_utf8_string = true;
}
return m_utf8_string;
}
Vector<u16> const& PrimitiveString::utf16_string() const
Utf16String const& PrimitiveString::utf16_string() const
{
if (!m_has_utf16_string) {
m_utf16_string = AK::utf8_to_utf16(m_utf8_string);
m_utf16_string = Utf16String(m_utf8_string);
m_has_utf16_string = true;
}
return m_utf16_string;
@ -47,24 +47,12 @@ Vector<u16> const& PrimitiveString::utf16_string() const
Utf16View PrimitiveString::utf16_string_view() const
{
return Utf16View { utf16_string() };
return utf16_string().view();
}
PrimitiveString* js_string(Heap& heap, Utf16View const& view)
{
if (view.is_empty())
return &heap.vm().empty_string();
if (view.length_in_code_units() == 1) {
u16 code_unit = view.code_unit_at(0);
if (is_ascii(code_unit))
return &heap.vm().single_ascii_character_string(static_cast<u8>(code_unit));
}
Vector<u16> string;
string.ensure_capacity(view.length_in_code_units());
string.append(view.data(), view.length_in_code_units());
return js_string(heap, move(string));
return js_string(heap, Utf16String(view));
}
PrimitiveString* js_string(VM& vm, Utf16View const& view)
@ -72,13 +60,13 @@ PrimitiveString* js_string(VM& vm, Utf16View const& view)
return js_string(vm.heap(), view);
}
PrimitiveString* js_string(Heap& heap, Vector<u16> string)
PrimitiveString* js_string(Heap& heap, Utf16String string)
{
if (string.is_empty())
return &heap.vm().empty_string();
if (string.size() == 1) {
u16 code_unit = string.at(0);
if (string.length_in_code_units() == 1) {
u16 code_unit = string.code_unit_at(0);
if (is_ascii(code_unit))
return &heap.vm().single_ascii_character_string(static_cast<u8>(code_unit));
}
@ -86,7 +74,7 @@ PrimitiveString* js_string(Heap& heap, Vector<u16> string)
return heap.allocate_without_global_object<PrimitiveString>(move(string));
}
PrimitiveString* js_string(VM& vm, Vector<u16> string)
PrimitiveString* js_string(VM& vm, Utf16String string)
{
return js_string(vm.heap(), move(string));
}