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style: Error reporting fixes for media queries.

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Do it so that we always try to evaluate the media expression and the modern
syntax last, so that the most specific error message comes up.

Bug: 1422225
Reviewed-by: xidorn
MozReview-Commit-ID: 2tqdAsWh6Kh
This commit is contained in:
Emilio Cobos Álvarez 2018-06-21 19:35:35 +02:00
parent 3a92fd1cfc
commit 2d2e84aad5
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GPG key ID: 056B727BB9C1027C
4 changed files with 28 additions and 56 deletions
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4
components/style_traits/lib.rs
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@ -106,12 +106,12 @@ pub enum StyleParseErrorKind<'i> {
PropertyDeclarationValueNotExhausted,
/// An unexpected dimension token was encountered.
UnexpectedDimension(CowRcStr<'i>),
/// Expected identifier not found.
ExpectedIdentifier(Token<'i>),
/// Missing or invalid media feature name.
MediaQueryExpectedFeatureName(CowRcStr<'i>),
/// Missing or invalid media feature value.
MediaQueryExpectedFeatureValue,
/// A media feature range operator was not expected.
MediaQueryUnexpectedOperator,
/// min- or max- properties must have a value.
RangedExpressionWithNoValue,
/// A function was encountered that was not expected.