| 1 | // Internal function to turn maps into its negative variant.
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| 2 | // It prefixes the keys with `n` and makes the value negative.
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| 3 | @function negativify-map($map) {
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| 4 | $result: ();
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| 5 | @each $key, $value in $map {
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| 6 | @if $key != 0 {
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| 7 | $result: map-merge($result, ("n" + $key: (-$value)));
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| 8 | }
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| 9 | }
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| 10 | @return $result;
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| 11 | }
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