/**
 * Top-level entity extraction from a tree-sitter AST.
 *
 * An "entity" is a top-level declaration in a TypeScript/TSX file:
 * import, export, function, class, interface, type alias, variable declaration,
 * or ambient declaration (declare …).
 *
 * Each entity carries:
 *   - `signature`  — stable key for 3-way matching (based on name/kind)
 *   - `text`       — exact source slice (used in the merged output)
 *   - byte offsets — for gap-preserving reconstruction
 */
export type EntityKind = "import" | "export" | "function" | "class" | "interface" | "type" | "variable" | "declare" | "expression" | "other";
export interface TopLevelEntity {
    /** Stable key used for 3-way entity matching */
    signature: string;
    /** Entity kind */
    kind: EntityKind;
    /** Exact source text of this entity */
    text: string;
    /** Start byte index in the source string */
    startByte: number;
    /** End byte index in the source string */
    endByte: number;
    /** Start row (0-indexed) in the source */
    startLine: number;
}
/**
 * Extract top-level entities from a parsed tree-sitter tree.
 *
 * Skips unnamed tokens (punctuation, keywords) and ERROR nodes.
 *
 * @param tree   - Parsed tree-sitter tree
 * @param source - Source code (as passed to `parser.parse()`)
 */
export declare function extractEntities(tree: any, source: string): TopLevelEntity[];
/**
 * Return `true` if the tree contains at least one ERROR node.
 *
 * A tree with ERROR nodes has parse failures and should not be used
 * for structural merge (we fall back to the hunk-based resolver).
 */
export declare function hasParseErrors(tree: any): boolean;
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