/**
 * Nesting depth validation for the pre-scanner.
 * Detects excessive bracket nesting that could overflow parser stack.
 *
 * @module pre-scanner/checks/nesting-check
 */
import type { PreScannerConfig } from '../config';
import type { ScanState } from '../scan-state';
/**
 * Check bracket nesting depth.
 * This is a fast O(n) scan that tracks nesting without full parsing.
 *
 * Note: This is a heuristic check. It doesn't handle brackets in strings
 * or comments perfectly, but it catches malicious deep nesting attacks
 * which wouldn't be valid code anyway.
 *
 * @param source - The source code to check
 * @param config - Pre-scanner configuration
 * @param state - Scan state for recording issues
 */
export declare function checkNestingDepth(source: string, config: PreScannerConfig, state: ScanState): void;
/**
 * Check for excessive consecutive operators.
 * Catches patterns like "a++++++b" that could confuse parsers.
 *
 * @param source - The source code to check
 * @param config - Pre-scanner configuration
 * @param state - Scan state for recording issues
 */
export declare function checkConsecutiveOperators(source: string, config: PreScannerConfig, state: ScanState): void;
/**
 * Perform all nesting-related checks.
 *
 * @param source - The source code to check
 * @param config - Pre-scanner configuration
 * @param state - Scan state for recording issues
 */
export declare function performNestingChecks(source: string, config: PreScannerConfig, state: ScanState): void;