A Numeric is a Number with a Unit
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Combining a `Number` and a `Value` in one type.
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Progress: 2892 of 5945 tests passed in dart-sass compatibility mode. ### Breaking changes Lots of things have been moved around. See `Scope`, `Numeric`, and `Function` in particular. ### Improvements * Support `@use` of user-defined modules. PR #96. * Improve trigonometric precision by using f64 π rather than rational. * Handle more peculiarities with atan2, pow, infinities and negative zero. * Improve name lookups in scopes and modules, PR #87. * new `struct Scope` replaces trait and three structs. PR #95. * A color can be Hsla or Hwba as well as Rgba. PR #88, #89. * Handle units in `@for` loops inside sass functions. * Some types moved into `value` mod, imporoved docs. PR #90. * Add support for `$=`, `~=` and `^=` in css attribute selectors. Issue #91, PR #92. * A `Numeric` is a Number with a Unit. Also hide NumValue enum. PR #93. * The `SassFunction` type is now named `sass::Function`. * Test suite sass-spec updated to 2021-02-18. * Some cleanups. Thanks to @mfeckie for #91/#92. Tested with rustc 1.50.0 (cb75ad5db 2021-02-10), rustc 1.48.0 (7eac88abb 2020-11-16), rustc 1.46.0 (04488afe3 2020-08-24), rustc 1.44.1 (c7087fe00 2020-06-17), rustc 1.51.0-beta.3 (b631c914c 2021-02-24), and rustc 1.52.0-nightly (a8486b64b 2021-02-24).
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Provide a type
value::Numericwhich combines aNumberwith aUnit, and use that type insass::Valueandcss::Value.