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LibWeb: Make CSS::Selector reference counted

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The end goal is to make the PseudoClass::not_selector be a Selector
instead of a String that is repeatedly re-parsed. But since Selector
contains a Vector of ComplexSelectors, which each have a Vector of
SimpleSelectors, it's probably a good idea to not be passing them
around by value anyway. :^)
This commit is contained in:
Sam Atkins 2021-07-12 17:30:40 +01:00 • committed by Andreas Kling
parent 8cae79cc8d
commit 776b1f4548
9 changed files with 48 additions and 38 deletions
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26
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -171,55 +171,55 @@ NonnullRefPtr<CSSStyleSheet> Parser::parse_as_stylesheet(TokenStream<T>& tokens)
return stylesheet;
}
Vector<Selector> Parser::parse_a_selector()
NonnullRefPtrVector<Selector> Parser::parse_a_selector()
{
return parse_a_selector(m_token_stream);
}
template<typename T>
Vector<Selector> Parser::parse_a_selector(TokenStream<T>& tokens)
NonnullRefPtrVector<Selector> Parser::parse_a_selector(TokenStream<T>& tokens)
{
dbgln_if(CSS_PARSER_TRACE, "Parser::parse_a_selector");
auto comma_separated_lists = parse_as_comma_separated_list_of_component_values(tokens);
Vector<Selector> selectors;
NonnullRefPtrVector<Selector> selectors;
for (auto& selector_parts : comma_separated_lists) {
auto stream = TokenStream(selector_parts);
auto selector = parse_single_selector(stream);
if (selector.has_value())
selectors.append(selector.value());
if (selector)
selectors.append(selector.release_nonnull());
}
return selectors;
}
Vector<Selector> Parser::parse_a_relative_selector()
NonnullRefPtrVector<Selector> Parser::parse_a_relative_selector()
{
return parse_a_relative_selector(m_token_stream);
}
template<typename T>
Vector<Selector> Parser::parse_a_relative_selector(TokenStream<T>& tokens)
NonnullRefPtrVector<Selector> Parser::parse_a_relative_selector(TokenStream<T>& tokens)
{
dbgln_if(CSS_PARSER_TRACE, "Parser::parse_a_relative_selector");
auto comma_separated_lists = parse_as_comma_separated_list_of_component_values(tokens);
Vector<Selector> selectors;
NonnullRefPtrVector<Selector> selectors;
for (auto& selector_parts : comma_separated_lists) {
auto stream = TokenStream(selector_parts);
auto selector = parse_single_selector(stream, true);
if (selector.has_value())
selectors.append(selector.value());
if (selector)
selectors.append(selector.release_nonnull());
}
return selectors;
}
template<typename T>
Optional<Selector> Parser::parse_single_selector(TokenStream<T>& tokens, bool is_relative)
RefPtr<Selector> Parser::parse_single_selector(TokenStream<T>& tokens, bool is_relative)
{
dbgln_if(CSS_PARSER_TRACE, "Parser::parse_single_selector");
@ -555,7 +555,7 @@ Optional<Selector> Parser::parse_single_selector(TokenStream<T>& tokens, bool is
if (!is_relative)
selectors.first().relation = Selector::ComplexSelector::Relation::None;
return Selector(move(selectors));
return Selector::create(move(selectors));
}
NonnullRefPtrVector<StyleRule> Parser::consume_a_list_of_rules(bool top_level)
@ -1145,7 +1145,7 @@ RefPtr<CSSRule> Parser::convert_to_rule(NonnullRefPtr<StyleRule> rule)
} else {
auto prelude_stream = TokenStream(rule->m_prelude);
Vector<Selector> selectors = parse_a_selector(prelude_stream);
auto selectors = parse_a_selector(prelude_stream);
auto declaration = convert_to_declaration(*rule->m_block);
if (declaration && !selectors.is_empty())
return CSSStyleRule::create(move(selectors), move(*declaration));