hyperformula
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HyperFormula is a JavaScript engine for efficient processing of spreadsheet-like data and formulas
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TypeScript
/**
* @license
* Copyright (c) 2025 Handsoncode. All rights reserved.
*/
import { SimpleCellAddress } from './Cell';
import { FormulaTransformer } from './dependencyTransformers/Transformer';
import { Ast, ParserWithCaching } from './parser';
import { Statistics } from './statistics/Statistics';
import { UndoRedo } from './UndoRedo';
export declare class LazilyTransformingAstService {
private readonly stats;
parser?: ParserWithCaching;
undoRedo?: UndoRedo;
private transformations;
private combinedTransformer?;
constructor(stats: Statistics);
version(): number;
addTransformation(transformation: FormulaTransformer): number;
beginCombinedMode(sheet: number): void;
commitCombinedMode(): number;
applyTransformations(ast: Ast, address: SimpleCellAddress, version: number): [Ast, SimpleCellAddress, number];
getTransformationsFrom(version: number, filter?: (transformation: FormulaTransformer) => boolean): IterableIterator<FormulaTransformer>;
}