import type { DataflowGraph } from '../dataflow/graph/graph';
import type { NormalizedAst } from '../r-bridge/lang-4.x/ast/model/processing/decorate';
import type { NodeId } from '../r-bridge/lang-4.x/ast/model/processing/node-id';
import type { ControlFlowInformation } from './control-flow-graph';
import type { ReadOnlyFlowrAnalyzerContext } from '../project/context/flowr-analyzer-context';
import { BuiltInProcName } from '../dataflow/environments/built-in-proc-name';
export declare const loopyFunctions: Set<BuiltInProcName>;
/**
 * Checks whether a loop only loops once
 * @param loop        - nodeid of the loop to analyse
 * @param dataflow    - dataflow graph
 * @param controlflow - control flow graph
 * @param ast         - normalized ast
 * @param ctx      - current flowr analyzer context
 * @returns true if the given loop only iterates once
 */
export declare function onlyLoopsOnce(loop: NodeId, dataflow: DataflowGraph, controlflow: ControlFlowInformation, ast: NormalizedAst, ctx: ReadOnlyFlowrAnalyzerContext): boolean | undefined;