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style: Fix a case where we'd allow parsing functional :host incorrectly.

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This is a missing check I should've introduced in bug 1632647.

Differential Revision: https://phabricator.services.mozilla.com/D76161
This commit is contained in:
Emilio Cobos Álvarez 2020-05-20 23:54:16 +00:00
parent a457a2261b
commit a40b2b610a
1 changed files with 6 additions and 1 deletions
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7
components/selectors/parser.rs
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@ -2207,7 +2207,12 @@ where
"nth-last-of-type" => return parse_nth_pseudo_class(parser, input, state, Component::NthLastOfType),
"is" if parser.parse_is_and_where() => return parse_is_or_where(parser, input, state, Component::Is),
"where" if parser.parse_is_and_where() => return parse_is_or_where(parser, input, state, Component::Where),
"host" => return Ok(Component::Host(Some(parse_inner_compound_selector(parser, input, state)?))),
"host" => {
if !state.allows_tree_structural_pseudo_classes() {
return Err(input.new_custom_error(SelectorParseErrorKind::InvalidState));
}
return Ok(Component::Host(Some(parse_inner_compound_selector(parser, input, state)?)));
},
"not" => {
if state.intersects(SelectorParsingState::INSIDE_NEGATION) {
return Err(input.new_custom_error(