export interface SideEffect {
    file: string;
    line: number;
    code: string;
    type: 'console' | 'global-mutation' | 'require-side-effect' | 'top-level-call';
    severity: 'error' | 'warning';
}
export interface TreeShakeIssue {
    file: string;
    issue: string;
    suggestion: string;
    severity: 'error' | 'warning' | 'info';
    line?: number;
}
export interface TreeShakeScore {
    score: number;
    usesESModules: boolean;
    hasNamedExports: boolean;
    hasDefaultExport: boolean;
    hasSideEffects: boolean;
    packageJsonConfigured: boolean;
}
export interface TreeShakeAnalysis {
    score: TreeShakeScore;
    issues: TreeShakeIssue[];
    sideEffects: SideEffect[];
    recommendations: string[];
    estimatedImprovement: number;
}
export declare class TreeShakeAnalyzer {
    private projectRoot;
    constructor(projectRoot: string);
    analyze(): Promise<TreeShakeAnalysis>;
    private getSourceFiles;
    private getAllFiles;
    private usesESModules;
    private hasNamedExports;
    private hasDefaultExport;
    private usesCommonJS;
    private detectSideEffects;
    private checkPackageJson;
    private calculateScore;
    private generateRecommendations;
    private estimateImprovement;
}