import { IrType } from "@tsonic/frontend";
import type { CSharpTypeAst } from "../format/backend-ast/types.js";
import type { EmitterContext } from "../../types.js";
export type EmitTypeAstLike = (type: IrType, context: EmitterContext) => [CSharpTypeAst, EmitterContext];
export type RuntimeUnionLayout = {
    readonly members: readonly IrType[];
    readonly memberTypeAsts: readonly CSharpTypeAst[];
    readonly carrierTypeArgumentAsts: readonly CSharpTypeAst[];
    readonly runtimeUnionArity: number;
    readonly carrierName?: string;
    readonly carrierFullName?: string;
};
export type RuntimeUnionFrame = {
    readonly members: readonly IrType[];
    readonly runtimeUnionArity: number;
};
export declare const UNKNOWN_TYPE: IrType;
export declare const BROAD_OBJECT_TYPE: IrType;
export declare const isRuntimeUnionTypeName: (name: string) => boolean;
export declare const getRuntimeUnionReferenceMembers: (type: Extract<IrType, {
    kind: "referenceType";
}>) => readonly IrType[] | undefined;
//# sourceMappingURL=runtime-union-shared.d.ts.map