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Auto merge of #17173 - Manishearth:supports-fixes, r=upsuper

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Stop parsing @supports rules before Delimiter::Bang

Fixes #15482

Shorthand parsing uses `parse_entirely`, so we have to ask it to stop before the `!important`.

An alternate fix is to not use `parse_entirely` there and ensuring that all callers of `PropertyDeclaration::parse_into()` check that the input is exhausted. Two of the three callers do that anyway because they check for `!important`.

We also weren't checking for the end of the parser for `CSS.supports()`.

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This commit is contained in:
bors-servo 2017-06-05 23:19:31 -07:00 • committed by GitHub
commit eaa01223a7
2 changed files with 6 additions and 3 deletions
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2
ports/geckolib/glue.rs
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@ -2298,7 +2298,7 @@ pub extern "C" fn Servo_CSSSupports2(property: *const nsACString,
pub extern "C" fn Servo_CSSSupports(cond: *const nsACString) -> bool {
let condition = unsafe { cond.as_ref().unwrap().as_str_unchecked() };
let mut input = Parser::new(&condition);
let cond = parse_condition_or_declaration(&mut input);
let cond = input.parse_entirely(|i| parse_condition_or_declaration(i));
if let Ok(cond) = cond {
let url_data = unsafe { dummy_url_data() };
let reporter = RustLogReporter;