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feat(design-tokens): Add a unit on a token value on demand #588

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feat(design-tokens): Add a unit on a token value on demand #588

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1 change: 1 addition & 0 deletions plugins/postcss-design-tokens/src/data-formats/base/token.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ export interface TokenTransformOptions {
rootFontSize: number;
};
toUnit?: string;
asUnit?: string;
}

export interface Token {
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5 changes: 5 additions & 0 deletions plugins/postcss-design-tokens/src/data-formats/style-dictionary/v3/value.ts
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Expand Up @@ -83,6 +83,11 @@ export function applyTransformsToValue(value: string|undefined|null, transformOp
}
}

// add unit to unit-less value
if (transformOptions.asUnit) {
return `${value}${transformOptions.asUnit}`;
}

return value;
}

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10 changes: 10 additions & 0 deletions plugins/postcss-design-tokens/src/values.ts
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Expand Up @@ -50,6 +50,16 @@ export function onCSSValue(tokens: Map<string, Token>, result: Result, decl: Dec
transformOptions.toUnit = remainingNodes[i + 1].value;
i++;
}

if (
remainingNodes[i].type === 'word' &&
remainingNodes[i].value.toLowerCase() === 'as' &&
remainingNodes[i + 1] &&
remainingNodes[i + 1].type === 'word'
) {
transformOptions.asUnit = remainingNodes[i + 1].value;
i++;
}
}

node.value = replacement.cssValue(transformOptions);
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