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https://github.com/RGBCube/serenity
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LibWeb: Propagate errors when parsing StyleValues
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
Andreas Kling
parent
d732a83de8
commit
ba6d37ee6f
3 changed files with 435 additions and 428 deletions
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@ -85,16 +85,17 @@ public:
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RefPtr<Supports> parse_as_supports();
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RefPtr<StyleValue> parse_as_css_value(PropertyID);
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ErrorOr<RefPtr<StyleValue>> parse_as_css_value(PropertyID);
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static RefPtr<StyleValue> parse_css_value(Badge<StyleComputer>, ParsingContext const&, PropertyID, Vector<ComponentValue> const&);
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static RefPtr<CalculatedStyleValue> parse_calculated_value(Badge<StyleComputer>, ParsingContext const&, Vector<ComponentValue> const&);
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static ErrorOr<RefPtr<StyleValue>> parse_css_value(Badge<StyleComputer>, ParsingContext const&, PropertyID, Vector<ComponentValue> const&);
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static ErrorOr<RefPtr<CalculatedStyleValue>> parse_calculated_value(Badge<StyleComputer>, ParsingContext const&, Vector<ComponentValue> const&);
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private:
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Parser(ParsingContext const&, Vector<Token>);
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enum class ParseError {
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IncludesIgnoredVendorPrefix,
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InternalError,
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SyntaxError,
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};
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template<typename T>
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@ -267,64 +268,64 @@ private:
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Font,
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};
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Optional<AK::URL> parse_url_function(ComponentValue const&, AllowedDataUrlType = AllowedDataUrlType::None);
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RefPtr<StyleValue> parse_url_value(ComponentValue const&, AllowedDataUrlType = AllowedDataUrlType::None);
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ErrorOr<RefPtr<StyleValue>> parse_url_value(ComponentValue const&, AllowedDataUrlType = AllowedDataUrlType::None);
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Optional<Vector<LinearColorStopListElement>> parse_linear_color_stop_list(TokenStream<ComponentValue>&);
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Optional<Vector<AngularColorStopListElement>> parse_angular_color_stop_list(TokenStream<ComponentValue>&);
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RefPtr<StyleValue> parse_linear_gradient_function(ComponentValue const&);
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RefPtr<StyleValue> parse_conic_gradient_function(ComponentValue const&);
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RefPtr<StyleValue> parse_radial_gradient_function(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_linear_gradient_function(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_conic_gradient_function(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_radial_gradient_function(ComponentValue const&);
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ParseErrorOr<NonnullRefPtr<StyleValue>> parse_css_value(PropertyID, TokenStream<ComponentValue>&);
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RefPtr<StyleValue> parse_css_value(ComponentValue const&);
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RefPtr<StyleValue> parse_builtin_value(ComponentValue const&);
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RefPtr<StyleValue> parse_dynamic_value(ComponentValue const&);
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RefPtr<CalculatedStyleValue> parse_calculated_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_dimension_value(ComponentValue const&);
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RefPtr<StyleValue> parse_numeric_value(ComponentValue const&);
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RefPtr<StyleValue> parse_identifier_value(ComponentValue const&);
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RefPtr<StyleValue> parse_color_value(ComponentValue const&);
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RefPtr<StyleValue> parse_rect_value(ComponentValue const&);
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RefPtr<StyleValue> parse_string_value(ComponentValue const&);
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RefPtr<StyleValue> parse_image_value(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_css_value(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_builtin_value(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_dynamic_value(ComponentValue const&);
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ErrorOr<RefPtr<CalculatedStyleValue>> parse_calculated_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_dimension_value(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_numeric_value(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_identifier_value(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_color_value(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_rect_value(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_string_value(ComponentValue const&);
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ErrorOr<RefPtr<StyleValue>> parse_image_value(ComponentValue const&);
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template<typename ParseFunction>
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RefPtr<StyleValue> parse_comma_separated_value_list(Vector<ComponentValue> const&, ParseFunction);
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RefPtr<StyleValue> parse_simple_comma_separated_value_list(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_comma_separated_value_list(Vector<ComponentValue> const&, ParseFunction);
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ErrorOr<RefPtr<StyleValue>> parse_simple_comma_separated_value_list(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_filter_value_list_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_background_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_single_background_position_value(TokenStream<ComponentValue>&);
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RefPtr<StyleValue> parse_single_background_position_x_or_y_value(TokenStream<ComponentValue>&, PropertyID);
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RefPtr<StyleValue> parse_single_background_repeat_value(TokenStream<ComponentValue>&);
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RefPtr<StyleValue> parse_single_background_size_value(TokenStream<ComponentValue>&);
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RefPtr<StyleValue> parse_border_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_border_radius_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_border_radius_shorthand_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_content_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_display_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_flex_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_flex_flow_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_font_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_font_family_value(Vector<ComponentValue> const&, size_t start_index = 0);
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RefPtr<StyleValue> parse_list_style_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_overflow_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_filter_value_list_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_background_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_single_background_position_value(TokenStream<ComponentValue>&);
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ErrorOr<RefPtr<StyleValue>> parse_single_background_position_x_or_y_value(TokenStream<ComponentValue>&, PropertyID);
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ErrorOr<RefPtr<StyleValue>> parse_single_background_repeat_value(TokenStream<ComponentValue>&);
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ErrorOr<RefPtr<StyleValue>> parse_single_background_size_value(TokenStream<ComponentValue>&);
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ErrorOr<RefPtr<StyleValue>> parse_border_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_border_radius_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_border_radius_shorthand_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_content_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_display_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_flex_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_flex_flow_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_font_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_font_family_value(Vector<ComponentValue> const&, size_t start_index = 0);
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ErrorOr<RefPtr<StyleValue>> parse_list_style_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_overflow_value(Vector<ComponentValue> const&);
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enum class AllowInsetKeyword {
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No,
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Yes,
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};
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RefPtr<StyleValue> parse_shadow_value(Vector<ComponentValue> const&, AllowInsetKeyword);
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RefPtr<StyleValue> parse_single_shadow_value(TokenStream<ComponentValue>&, AllowInsetKeyword);
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RefPtr<StyleValue> parse_text_decoration_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_text_decoration_line_value(TokenStream<ComponentValue>&);
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RefPtr<StyleValue> parse_transform_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_transform_origin_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_grid_track_size_list(Vector<ComponentValue> const&, bool allow_separate_line_name_blocks = false);
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RefPtr<StyleValue> parse_grid_track_size_list_shorthand_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_grid_track_placement(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_grid_track_placement_shorthand_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_grid_template_areas_value(Vector<ComponentValue> const&);
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RefPtr<StyleValue> parse_grid_area_shorthand_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_shadow_value(Vector<ComponentValue> const&, AllowInsetKeyword);
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ErrorOr<RefPtr<StyleValue>> parse_single_shadow_value(TokenStream<ComponentValue>&, AllowInsetKeyword);
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ErrorOr<RefPtr<StyleValue>> parse_text_decoration_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_text_decoration_line_value(TokenStream<ComponentValue>&);
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ErrorOr<RefPtr<StyleValue>> parse_transform_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_transform_origin_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_grid_track_size_list(Vector<ComponentValue> const&, bool allow_separate_line_name_blocks = false);
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ErrorOr<RefPtr<StyleValue>> parse_grid_track_size_list_shorthand_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_grid_track_placement(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_grid_track_placement_shorthand_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_grid_template_areas_value(Vector<ComponentValue> const&);
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ErrorOr<RefPtr<StyleValue>> parse_grid_area_shorthand_value(Vector<ComponentValue> const&);
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ErrorOr<OwnPtr<CalculationNode>> parse_a_calculation(Vector<ComponentValue> const&);
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