import type { ReturnedDeclaration, ReturnedMediaQuery, ReturnedRule, Rule } from 'lightningcss';
import type { UniwindBundlerConfig } from '../config';
type LightningRuleVisitor = Rule<ReturnedDeclaration, ReturnedMediaQuery>;
type LightningRuleVisitors = Partial<{
    [K in LightningRuleVisitor['type']]: (rule: Extract<LightningRuleVisitor, {
        type: K;
    }>) => ReturnedRule | Array<ReturnedRule> | void;
}>;
export declare class RuleVisitor implements LightningRuleVisitors {
    private readonly bundlerConfig;
    processedClassNames: Set<string>;
    processedVariables: Set<string>;
    currentLayerName: string;
    constructor(bundlerConfig: UniwindBundlerConfig);
    'layer-block': (layer: Extract<LightningRuleVisitor, {
        type: "layer-block";
    }>) => void;
    style: (styleRule: Extract<LightningRuleVisitor, {
        type: "style";
    }>) => void | ReturnedRule | ReturnedRule[];
    cleanup(): void;
    private processThemeRoot;
    private processThemeStyle;
    private processClassStyle;
    private removeNulls;
}
export {};