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LibWeb: Propagate errors when parsing StyleValues

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This necessitated returning `nullptr` instead of just `{}` in a lot of
places. Also, some temporary hackiness in `parse_css_value()`: That
returns a special `ParseError` type already, so we now have a
`FIXME_TRY()` macro which logs the error and then returns a generic
`ParseError::InternalError` value. Eventually this macro will go away,
once I figure out how to deal with this more nicely.
This commit is contained in:
Sam Atkins
2023-05-02 13:03:51 +01:00
committed by Andreas Kling
parent d732a83de8
commit ba6d37ee6f
3 changed files with 435 additions and 428 deletions
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4
Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
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@@ -802,7 +802,7 @@ bool StyleComputer::expand_unresolved_values(DOM::Element& element, StringView p
if (value.function().name().equals_ignoring_ascii_case("calc"sv)) {
auto const& calc_function = value.function();
if (auto calc_value = CSS::Parser::Parser::parse_calculated_value({}, Parser::ParsingContext { document() }, calc_function.values())) {
if (auto calc_value = Parser::Parser::parse_calculated_value({}, Parser::ParsingContext { document() }, calc_function.values()).release_value_but_fixme_should_propagate_errors()) {
switch (calc_value->resolved_type()) {
case CalculatedStyleValue::ResolvedType::Integer: {
auto resolved_value = calc_value->resolve_integer();
@@ -865,7 +865,7 @@ RefPtr<StyleValue> StyleComputer::resolve_unresolved_style_value(DOM::Element& e
if (!expand_unresolved_values(element, string_from_property_id(property_id), unresolved_values_with_variables_expanded, expanded_values))
return {};
if (auto parsed_value = Parser::Parser::parse_css_value({}, Parser::ParsingContext { document() }, property_id, expanded_values))
if (auto parsed_value = Parser::Parser::parse_css_value({}, Parser::ParsingContext { document() }, property_id, expanded_values).release_value_but_fixme_should_propagate_errors())
return parsed_value.release_nonnull();
return {};