22 lines
712 B
JavaScript
22 lines
712 B
JavaScript
import { warning } from "@rc-component/util/es/warning";
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let uuid = 0;
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/**
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* Theme with algorithms to derive tokens from design tokens.
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* Use `createTheme` first which will help to manage the theme instance cache.
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*/
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export default class Theme {
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derivatives;
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id;
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constructor(derivatives) {
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this.derivatives = Array.isArray(derivatives) ? derivatives : [derivatives];
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this.id = uuid;
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if (derivatives.length === 0) {
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warning(derivatives.length > 0, '[Ant Design CSS-in-JS] Theme should have at least one derivative function.');
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}
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uuid += 1;
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}
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getDerivativeToken(token) {
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return this.derivatives.reduce((result, derivative) => derivative(token, result), undefined);
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}
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} |