/**
 * Detector for environment variable exposure in client-side code
 */
import { BaseDetector } from "./BaseDetector";
import { Vulnerability } from "../types/vulnerability.types";
import { ScanResult } from "../../../types";
export declare class EnvironmentExposureDetector extends BaseDetector {
    private static readonly ENV_PATTERNS;
    constructor();
    detect(scanResult: ScanResult): Promise<Vulnerability[]>;
    /**
     * Validate if an environment variable match is problematic
     */
    private validateEnvMatch;
    /**
     * AST-based analysis for environment variable exposure
     */
    private analyzeASTForEnvExposure;
    /**
     * Find all process.env property access expressions
     */
    private findProcessEnvAccess;
    /**
     * Get environment variable name from property access
     */
    private getEnvVariableName;
    /**
     * Assess the risk of using an environment variable in client code
     */
    private assessEnvVariableRisk;
    /**
     * Extract environment variable name from match string
     */
    private extractEnvVariableName;
    /**
     * Check if environment variable is safe for client-side use
     */
    private isClientSafeEnvVar;
    /**
     * Check if environment variable is server-only
     */
    private isServerOnlyEnvVar;
    /**
     * Check if environment variable name looks sensitive
     */
    private looksLikeSensitiveEnvVar;
    /**
     * Check if environment variable usage is properly gated for development
     */
    private isProperlyGatedForDevelopment;
    /**
     * Extract function name from AST node context
     */
    private extractFunctionFromAST;
}