import { GenerateTypeUtils } from "../converter/BaseConverter.js";
import { IRNode } from "../types.js";
import type { SwiftConverterContext } from "./SwiftConverter.js";
/**
 * Emits a Swift `enum` with associated-value cases plus per-variant nested
 * `struct` declarations for a discriminated union, registering them in
 * `c.sealedEnumDecls`. Idempotent for nested visits: re-emitting the same
 * enum short-circuits via `sealedEnumDeclsContainsName`.
 */
export declare function emitSwiftDiscriminatedEnum(c: SwiftConverterContext, ir: IRNode, utils: GenerateTypeUtils): string;
/** Derives the Swift discriminated-enum name for a union IR node. */
export declare function deriveSwiftSealedName(c: SwiftConverterContext, ir: IRNode): string;
/**
 * Substring-scans `c.sealedEnumDecls` for an existing declaration matching the
 * given name. Used to detect prior emission so the orchestrator can skip the
 * regular ref-types path for sealed variants.
 */
export declare function sealedEnumDeclsContainsName(c: SwiftConverterContext, name: string): boolean;