/** @category Legacy Incremental Execution */
import type { ObjMap } from "../../jsutils/ObjMap.mjs";
import type { GraphQLError, GraphQLFormattedError } from "../../error/GraphQLError.mjs";
import type { GroupedFieldSet } from "../collectFields.mjs";
import type { ExecutionResult, FormattedExecutionResult } from "../Executor.mjs";
import type { DeferUsageSet, ExecutionPlan } from "../incremental/buildExecutionPlan.mjs";
import { IncrementalExecutor } from "../incremental/IncrementalExecutor.mjs";
/**
 * Results for an operation that produced legacy incremental payloads.
 * @typeParam TInitialData - Shape of the initial result data payload.
 * @typeParam TDeferredData - Shape of deferred fragment data payloads.
 * @typeParam TStreamItem - Shape of streamed list items.
 * @typeParam TExtensions - Shape of extensions payloads.
 */
export interface LegacyExperimentalIncrementalExecutionResults<TInitialData = ObjMap<unknown>, TDeferredData = ObjMap<unknown>, TStreamItem = unknown, TExtensions = ObjMap<unknown>> {
    /** Initial execution result delivered before subsequent legacy incremental payloads. */
    initialResult: LegacyInitialIncrementalExecutionResult<TInitialData, TExtensions>;
    /** Async stream of legacy incremental payloads delivered after the initial result. */
    subsequentResults: AsyncGenerator<LegacySubsequentIncrementalExecutionResult<TDeferredData, TStreamItem, TExtensions>, void, void>;
}
/**
 * Initial execution result for an operation that produced legacy incremental payloads.
 *
 * Unlike `InitialIncrementalExecutionResult`, the legacy initial result does
 * not include a `pending` list. Subsequent payloads identify their location
 * directly with `path` and optional `label` fields.
 * @typeParam TInitialData - Shape of the initial data payload.
 * @typeParam TExtensions - Shape of the extensions payload.
 */
export interface LegacyInitialIncrementalExecutionResult<TInitialData = ObjMap<unknown>, TExtensions = ObjMap<unknown>> extends ExecutionResult<TInitialData, TExtensions> {
    /** Data produced by the initial execution payload. */
    data: TInitialData;
    /** Indicates that subsequent legacy incremental payloads will follow. */
    hasNext: true;
    /** Additional non-standard metadata included in the initial result. */
    extensions?: TExtensions;
}
/**
 * Subsequent payload produced by legacy incremental execution.
 *
 * Legacy subsequent payloads may contain deferred fragment data, streamed list
 * items, or only `hasNext: false` to complete the response stream.
 * @typeParam TDeferredData - Shape of deferred fragment data payloads.
 * @typeParam TStreamItem - Shape of streamed list items.
 * @typeParam TExtensions - Shape of the extensions payload.
 */
export interface LegacySubsequentIncrementalExecutionResult<TDeferredData = ObjMap<unknown>, TStreamItem = unknown, TExtensions = ObjMap<unknown>> {
    /** Deferred or streamed payloads delivered by this response. */
    incremental?: ReadonlyArray<LegacyIncrementalResult<TDeferredData, TStreamItem, TExtensions>>;
    /** Indicates whether more legacy incremental payloads will follow. */
    hasNext: boolean;
    /** Additional non-standard metadata included in this payload. */
    extensions?: TExtensions;
}
/**
 * Deferred fragment or streamed list payload produced by legacy incremental execution.
 * @typeParam TDeferredData - Shape of deferred fragment data.
 * @typeParam TStreamItem - Shape of streamed list items.
 * @typeParam TExtensions - Shape of extensions payloads.
 */
export type LegacyIncrementalResult<TDeferredData = ObjMap<unknown>, TStreamItem = unknown, TExtensions = ObjMap<unknown>> = LegacyIncrementalDeferResult<TDeferredData, TExtensions> | LegacyIncrementalStreamResult<TStreamItem, TExtensions>;
/**
 * Legacy incremental payload produced by a deferred fragment.
 *
 * The payload location is identified directly by `path` and optional `label`
 * instead of by an `id` from a pending entry.
 * @typeParam TDeferredData - Shape of deferred fragment data.
 * @typeParam TExtensions - Shape of extensions payloads.
 */
export interface LegacyIncrementalDeferResult<TDeferredData = ObjMap<unknown>, TExtensions = ObjMap<unknown>> extends ExecutionResult<TDeferredData, TExtensions> {
    /** Response path to the deferred fragment payload. */
    path: ReadonlyArray<string | number>;
    /** Label from the `@defer` directive. */
    label?: string;
}
/**
 * Legacy incremental payload produced by a streamed list field.
 * @typeParam TStreamItem - Shape of streamed list items.
 * @typeParam TExtensions - Shape of extensions payloads.
 */
export interface LegacyIncrementalStreamResult<TStreamItem = unknown, TExtensions = ObjMap<unknown>> {
    /** Errors raised while producing streamed items. */
    errors?: ReadonlyArray<GraphQLError>;
    /** Streamed list items delivered by this payload. */
    items: ReadonlyArray<TStreamItem> | null;
    /** Response path to the first streamed list item in this payload. */
    path: ReadonlyArray<string | number>;
    /** Label from the `@stream` directive. */
    label?: string;
    /** Additional non-standard metadata included in this payload. */
    extensions?: TExtensions;
}
/**
 * JSON-serializable form of legacy incremental execution results.
 * @typeParam TInitialData - Shape of the formatted initial result data payload.
 * @typeParam TDeferredData - Shape of formatted deferred fragment data payloads.
 * @typeParam TStreamItem - Shape of formatted streamed list items.
 * @typeParam TExtensions - Shape of formatted extensions payloads.
 */
export interface FormattedLegacyExperimentalIncrementalExecutionResults<TInitialData = ObjMap<unknown>, TDeferredData = ObjMap<unknown>, TStreamItem = unknown, TExtensions = ObjMap<unknown>> {
    /** Formatted initial execution result. */
    initialResult: FormattedLegacyInitialIncrementalExecutionResult<TInitialData, TExtensions>;
    /** Async stream of formatted legacy incremental payloads. */
    subsequentResults: AsyncGenerator<FormattedLegacySubsequentIncrementalExecutionResult<TDeferredData, TStreamItem, TExtensions>, void, void>;
}
/**
 * JSON-serializable form of a legacy initial incremental execution result.
 * @typeParam TInitialData - Shape of the formatted initial data payload.
 * @typeParam TExtensions - Shape of the formatted extensions payload.
 */
export interface FormattedLegacyInitialIncrementalExecutionResult<TInitialData = ObjMap<unknown>, TExtensions = ObjMap<unknown>> extends FormattedExecutionResult<TInitialData, TExtensions> {
    /** Formatted data produced by the initial execution payload. */
    data: TInitialData;
    /** Indicates that subsequent legacy incremental payloads will follow. */
    hasNext: true;
    /** Additional non-standard metadata included in the formatted initial result. */
    extensions?: TExtensions;
}
/**
 * JSON-serializable form of a legacy subsequent incremental execution payload.
 * @typeParam TDeferredData - Shape of formatted deferred fragment data payloads.
 * @typeParam TStreamItem - Shape of formatted streamed list items.
 * @typeParam TExtensions - Shape of formatted extensions payloads.
 */
export interface FormattedLegacySubsequentIncrementalExecutionResult<TDeferredData = ObjMap<unknown>, TStreamItem = unknown, TExtensions = ObjMap<unknown>> {
    /** Formatted deferred or streamed payloads delivered by this response. */
    incremental?: ReadonlyArray<FormattedLegacyIncrementalResult<TDeferredData, TStreamItem, TExtensions>>;
    /** Indicates whether more legacy incremental payloads will follow. */
    hasNext: boolean;
    /** Additional non-standard metadata included in this formatted payload. */
    extensions?: TExtensions;
}
/**
 * JSON-serializable deferred fragment or streamed list payload produced by
 * legacy incremental execution.
 * @typeParam TDeferredData - Shape of formatted deferred fragment data.
 * @typeParam TStreamItem - Shape of formatted streamed list items.
 * @typeParam TExtensions - Shape of formatted extensions payloads.
 */
export type FormattedLegacyIncrementalResult<TDeferredData = ObjMap<unknown>, TStreamItem = unknown, TExtensions = ObjMap<unknown>> = FormattedLegacyIncrementalDeferResult<TDeferredData, TExtensions> | FormattedLegacyIncrementalStreamResult<TStreamItem, TExtensions>;
/**
 * JSON-serializable form of a legacy deferred fragment payload.
 * @typeParam TDeferredData - Shape of formatted deferred fragment data.
 * @typeParam TExtensions - Shape of formatted extensions payloads.
 */
export interface FormattedLegacyIncrementalDeferResult<TDeferredData = ObjMap<unknown>, TExtensions = ObjMap<unknown>> extends FormattedExecutionResult<TDeferredData, TExtensions> {
    /** Response path to the formatted deferred fragment payload. */
    path: ReadonlyArray<string | number>;
    /** Label from the `@defer` directive. */
    label?: string;
}
/**
 * JSON-serializable form of a legacy streamed list payload.
 * @typeParam TStreamItem - Shape of formatted streamed list items.
 * @typeParam TExtensions - Shape of formatted extensions payloads.
 */
export interface FormattedLegacyIncrementalStreamResult<TStreamItem = unknown, TExtensions = ObjMap<unknown>> {
    /** Formatted errors raised while producing streamed items. */
    errors?: ReadonlyArray<GraphQLFormattedError>;
    /** Formatted streamed list items delivered by this payload. */
    items: ReadonlyArray<TStreamItem> | null;
    /** Response path to the first streamed list item in this formatted payload. */
    path: ReadonlyArray<string | number>;
    /** Label from the `@stream` directive. */
    label?: string;
    /** Additional non-standard metadata included in this formatted payload. */
    extensions?: TExtensions;
}
/** @internal */
export declare class BranchingIncrementalExecutor extends IncrementalExecutor<LegacyExperimentalIncrementalExecutionResults> {
    getCreateSubExecutor(): (deferUsageSet?: DeferUsageSet) => BranchingIncrementalExecutor;
    buildResponse(data: ObjMap<unknown> | null): ExecutionResult | LegacyExperimentalIncrementalExecutionResults;
    buildRootExecutionPlan(originalGroupedFieldSet: GroupedFieldSet): ExecutionPlan;
    buildSubExecutionPlan(originalGroupedFieldSet: GroupedFieldSet): ExecutionPlan;
}