Update dependency sass to v1.42.1 - autoclosed

igswsihw-wmadepbot requested to merge renovate/sass-1.x into main

This MR contains the following updates:

Package Change Age Adoption Passing Confidence
sass 1.39.2 -> 1.42.1 age adoption passing confidence

Release Notes



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  • Fix a bug where Sass variables and function calls in calculations weren't being resolved correctly if there was a parenthesized interpolation elsewhere in the file.


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  • min() and max() expressions are once again parsed as calculations as long as they contain only syntax that's allowed in calculation expressions. To avoid the backwards-compatibility issues that were present in 1.40.0, they now allow unitless numbers to be mixed with numbers with units just like the global min() and max() functions. Similarly, + and - operations within min() and max() functions allow unitless numbers to be mixed with numbers with units.


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  • Preserve parentheses around var() functions in calculations, because they could potentially be replaced with sub-expressions that might need to be parenthesized.


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  • Calculation values can now be combined with strings using the + operator. This was an error in 1.40.0, but this broke stylesheets that were relying on $value + "" expressions to generically convert values to strings. (Note that the Sass team recommends the use of "#{$value}" or inspect($value) for that use-case.)

  • The selector.unify() function now correctly returns null when one selector is a :host or :host-context and the other is a selector that's guaranteed to be within the current shadow DOM. The @extend logic has been updated accordingly as well.

  • Fix a bug where extra whitespace in min(), max(), clamp(), and calc() expressions could cause bogus parse errors.

  • Fix a bug where the right-hand operand of a - in a calculation could incorrectly be stripped of parentheses.

Dart API
  • SassCalculation.plus() now allows SassString arguments.


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  • Potentially breaking bug fix: min() and max() expressions outside of calculations now behave the same way they did in 1.39.2, returning unquoted strings if they contain no Sass-specific features and calling the global min() and max() functions otherwise. Within calculations, they continue to behave how they did in 1.40.0.

    This fixes an unintended breaking change added in 1.40.0, wherein passing a unitless number and a number without units to min() or max() now produces an error. Since this breakage affects a major Sass library, we're temporarily reverting support for min() and max() calculations while we work on designing a longer-term fix.


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  • Add support for first-class calc() expressions (as well as clamp() and plain-CSS min() and max()). This means:

    • calc() expressions will be parsed more thoroughly, and errors will be highlighted where they weren't before. This may break your stylesheets, but only if they were already producing broken CSS.

    • calc() expressions will be simplified where possible, and may even return numbers if they can be simplified away entirely.

    • calc() expressions that can't be simplified to numbers return a new data type known as "calculations".

    • Sass variables and functions can now be used in calc() expressions.

    • New functions meta.calc-name() and meta.calc-args() can now inspect calculations.

Dart API
  • Add a new value type, SassCalculation, that represents calculations.

  • Add new CalculationOperation, CalculationOperator, and CalculationInterpolation types to represent types of arguments that may exist as part of a calculation.

  • Add a new Value.assertCalculation() method.

  • Add a new Number.hasCompatibleUnits() method.


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This MR has been generated by Renovate Bot.

Edited by igswsihw-wmadepbot

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