/**
 * AstChunker — Regex-based AST-boundary chunk splitter
 *
 * Splits source files at symbol boundaries (class, function, method) rather than
 * fixed line counts. Each chunk carries metadata about the symbol it contains.
 *
 * Supported languages: TypeScript (.ts, .tsx), JavaScript (.js, .jsx), Python (.py), Go (.go)
 * Unsupported extensions fall back to fixed-size splitting.
 *
 * Design constraints:
 *  - No native bindings (no tree-sitter, no node-gyp)
 *  - Max chunk size: MAX_CHUNK_LINES (default 80) — always honoured
 *  - Overlap: OVERLAP_LINES (default 3) — last N lines of prior chunk prepended to next
 *  - Never drops lines — lineEnd of last chunk always equals file line count
 */
export interface CodeChunk {
    /** The source text of this chunk (may include overlap lines from prior chunk) */
    content: string;
    /** 1-based line number where this chunk starts in the original file */
    lineStart: number;
    /** 1-based line number where this chunk ends in the original file */
    lineEnd: number;
    /** Name of the primary symbol this chunk belongs to, if detected */
    symbolName?: string;
    /** Type of the primary symbol */
    symbolType?: 'class' | 'function' | 'method' | 'unknown';
}
export interface ChunkOptions {
    /** Maximum number of lines per chunk (default: 80) */
    maxChunkLines?: number;
    /** Number of overlap lines carried from prior chunk (default: 3) */
    overlapLines?: number;
}
export declare class AstChunker {
    chunk(source: string, extension: string, opts?: ChunkOptions): CodeChunk[];
}
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