/**
 * AST Parser Service
 *
 * Wraps tree-sitter to parse source files and extract symbols, imports,
 * and structural information.
 */
import type { ASTLanguage, ImportInfo, IndexedSymbol } from './ast.types.js';
/** Approximate number of characters per token for rough estimation */
export declare const CHARS_PER_TOKEN = 4;
/**
 * Result of parsing a single file
 */
export interface ParseResult {
    contentHash: string;
    imports: ImportInfo[];
    language: ASTLanguage;
    symbols: IndexedSymbol[];
}
/**
 * Estimate tokens from text (rough: ~4 chars per token)
 */
export declare function estimateTokens(text: string): number;
/**
 * Parse a source file and extract symbols and imports
 */
export declare function parseFile(filePath: string, content: string): Promise<null | ParseResult>;
export declare function computeContentHash(content: string): string;
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