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LibWeb: Make value_id_from_string() return Optional

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This commit is contained in:
Sam Atkins 2023-05-10 12:43:29 +01:00 committed by Andreas Kling
parent 9b61f79eae
commit 03613dc14d
Notes: sideshowbarker 2024-07-16 23:23:26 +09:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/SerenityOS/serenity/commit/03613dc14d
Pull-request: https://github.com/SerenityOS/serenity/pull/19028
3 changed files with 16 additions and 17 deletions
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7
Meta/Lagom/Tools/CodeGenerators/LibWeb/GenerateCSSValueID.cpp
View file

@ -67,7 +67,7 @@ enum class ValueID {
generator.append(R"~~~(
};
ValueID value_id_from_string(StringView);
Optional<ValueID> value_id_from_string(StringView);
StringView string_from_value_id(ValueID);
}
@ -105,10 +105,9 @@ HashMap<StringView, ValueID, AK::CaseInsensitiveASCIIStringViewTraits> g_stringv
generator.append(R"~~~(
};
ValueID value_id_from_string(StringView string)
Optional<ValueID> value_id_from_string(StringView string)
{
auto maybe_value_id = g_stringview_to_value_id_map.get(string);
return maybe_value_id.value_or(ValueID::Invalid);
return g_stringview_to_value_id_map.get(string);
}
StringView string_from_value_id(ValueID value_id) {

16
Tests/LibWeb/TestCSSIDSpeed.cpp
View file

@ -10,18 +10,18 @@
TEST_CASE(basic)
{
EXPECT_EQ(Web::CSS::value_id_from_string("italic"sv), Web::CSS::ValueID::Italic);
EXPECT_EQ(Web::CSS::value_id_from_string("inline"sv), Web::CSS::ValueID::Inline);
EXPECT_EQ(Web::CSS::value_id_from_string("small"sv), Web::CSS::ValueID::Small);
EXPECT_EQ(Web::CSS::value_id_from_string("smalL"sv), Web::CSS::ValueID::Small);
EXPECT_EQ(Web::CSS::value_id_from_string("SMALL"sv), Web::CSS::ValueID::Small);
EXPECT_EQ(Web::CSS::value_id_from_string("Small"sv), Web::CSS::ValueID::Small);
EXPECT_EQ(Web::CSS::value_id_from_string("smALl"sv), Web::CSS::ValueID::Small);
EXPECT_EQ(Web::CSS::value_id_from_string("italic"sv).value(), Web::CSS::ValueID::Italic);
EXPECT_EQ(Web::CSS::value_id_from_string("inline"sv).value(), Web::CSS::ValueID::Inline);
EXPECT_EQ(Web::CSS::value_id_from_string("small"sv).value(), Web::CSS::ValueID::Small);
EXPECT_EQ(Web::CSS::value_id_from_string("smalL"sv).value(), Web::CSS::ValueID::Small);
EXPECT_EQ(Web::CSS::value_id_from_string("SMALL"sv).value(), Web::CSS::ValueID::Small);
EXPECT_EQ(Web::CSS::value_id_from_string("Small"sv).value(), Web::CSS::ValueID::Small);
EXPECT_EQ(Web::CSS::value_id_from_string("smALl"sv).value(), Web::CSS::ValueID::Small);
}
BENCHMARK_CASE(value_id_from_string)
{
for (size_t i = 0; i < 10'000'000; ++i) {
EXPECT_EQ(Web::CSS::value_id_from_string("inline"sv), Web::CSS::ValueID::Inline);
EXPECT_EQ(Web::CSS::value_id_from_string("inline"sv).value(), Web::CSS::ValueID::Inline);
}
}

10
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
View file

@ -1260,9 +1260,9 @@ Optional<MediaFeatureValue> Parser::parse_media_feature_value(MediaFeatureID med
auto transaction = tokens.begin_transaction();
tokens.skip_whitespace();
auto ident = value_id_from_string(tokens.next_token().token().ident());
if (ident != ValueID::Invalid && media_feature_accepts_identifier(media_feature, ident)) {
if (ident.has_value() && media_feature_accepts_identifier(media_feature, ident.value())) {
transaction.commit();
return MediaFeatureValue(ident);
return MediaFeatureValue(ident.value());
}
}
@ -3720,8 +3720,8 @@ ErrorOr<RefPtr<StyleValue>> Parser::parse_identifier_value(ComponentValue const&
{
if (component_value.is(Token::Type::Ident)) {
auto value_id = value_id_from_string(component_value.token().ident());
if (value_id != ValueID::Invalid)
return IdentifierStyleValue::create(value_id);
if (value_id.has_value())
return IdentifierStyleValue::create(value_id.value());
}
return nullptr;
@ -5653,7 +5653,7 @@ CSSRule* Parser::parse_font_face_rule(TokenStream<ComponentValue>& tokens)
break;
}
auto value_id = value_id_from_string(part.token().ident());
if (is_generic_font_family(value_id)) {
if (value_id.has_value() && is_generic_font_family(value_id.value())) {
dbgln_if(CSS_PARSER_DEBUG, "CSSParser: @font-face font-family format invalid; discarding.");
had_syntax_error = true;
break;