graphql - npm Package Compare versions

Comparing version 17.0.0-alpha.3.canary.pr.4026.5e657d31b3abdc38acd6bb21c50ed3a41aa33905 to 17.0.0-alpha.3.canary.pr.4026.74aa85f56dea9ab9feb4445165eb0e2347ea674f

execution/collectFields.d.ts

@@ -18,3 +18,3 @@ import type { ObjMap } from '../jsutils/ObjMap.js';
 export type FieldGroup = ReadonlyArray<FieldDetails>;
-export type GroupedFieldSet = Map<string, FieldGroup>;
+export type GroupedFieldSet = ReadonlyMap<string, FieldGroup>;
 /**
@@ -21,0 +21,0 @@ * Given a selectionSet, collects all of the fields and returns them.

execution/execute.d.ts

@@ -64,6 +64,5 @@ import type { Maybe } from '../jsutils/Maybe.js';
   subscribeFieldResolver: GraphQLFieldResolver<any, any>;
-  errors: Array<GraphQLError>;
-  cancellableStreams: Set<StreamRecord>;
-  errorPaths: Set<Path | undefined>;
-  futures: Array<Future>;
+  errors?: Map<Path | undefined, GraphQLError> | undefined;
+  cancellableStreams?: Set<StreamRecord> | undefined;
+  futures?: Array<Future>;
 }
@@ -70,0 +69,0 @@ export interface ExecutionArgs {

execution/execute.js

@@ -20,3 +20,2 @@ 'use strict';
 const memoize3_js_1 = require('../jsutils/memoize3.js');
-const memoizeByFirst_js_1 = require('../jsutils/memoizeByFirst.js');
 const Path_js_1 = require('../jsutils/Path.js');
@@ -56,9 +55,14 @@ const promiseForObject_js_1 = require('../jsutils/promiseForObject.js');
 );
-const buildSubFieldPlan = (0, memoizeByFirst_js_1.memoizeByFirst)(
-  (originalGroupedFieldSet, deferUsageSet) =>
-    (0, buildFieldPlan_js_1.buildFieldPlan)(
-      originalGroupedFieldSet,
-      deferUsageSet,
-    ),
-);
+const buildSubFieldPlan = (originalGroupedFieldSet, deferUsageSet) => {
+  let fieldPlan = originalGroupedFieldSet._fieldPlan;
+  if (fieldPlan !== undefined) {
+    return fieldPlan;
+  }
+  fieldPlan = (0, buildFieldPlan_js_1.buildFieldPlan)(
+    originalGroupedFieldSet,
+    deferUsageSet,
+  );
+  originalGroupedFieldSet._fieldPlan = fieldPlan;
+  return fieldPlan;
+};
 const UNEXPECTED_EXPERIMENTAL_DIRECTIVES =
@@ -144,13 +148,4 @@ 'The provided schema unexpectedly contains experimental directives (@defer or @stream). These directives may only be utilized if experimental execution features are explicitly enabled.';
     let data;
-    const {
-      operation,
-      schema,
-      fragments,
-      variableValues,
-      rootValue,
-      errors,
-      errorPaths,
-      futures,
-      cancellableStreams,
-    } = exeContext;
+    const { operation, schema, fragments, variableValues, rootValue } =
+      exeContext;
     const rootType = schema.getRootType(operation.operation);
@@ -202,3 +197,3 @@ if (rootType == null) {
           );
-        futures.push(...newDeferredGroupedFieldSetRecords);
+        addFutures(exeContext, newDeferredGroupedFieldSetRecords);
       }
@@ -208,46 +203,63 @@ }
       return data.then(
-        (resolved) =>
-          buildDataResponse(
-            resolved,
-            errors,
-            errorPaths,
-            futures,
-            cancellableStreams,
-          ),
-        (error) => buildErrorResponse(error, errors),
+        (resolved) => buildDataResponse(exeContext, resolved),
+        (error) => ({
+          data: null,
+          errors: withError(exeContext.errors, error),
+        }),
       );
     }
-    return buildDataResponse(
-      data,
-      exeContext.errors,
-      errorPaths,
-      futures,
-      cancellableStreams,
-    );
+    return buildDataResponse(exeContext, data);
   } catch (error) {
-    return buildErrorResponse(error, exeContext.errors);
+    return { data: null, errors: withError(exeContext.errors, error) };
   }
 }
-function buildDataResponse(
-  data,
-  errors,
-  errorPaths,
-  futures,
-  cancellableStreams,
-) {
-  const filteredFutures = filterFutures(undefined, errorPaths, futures);
-  if (filteredFutures.length > 0) {
+function addFutures(context, newFutures) {
+  const futures = context.futures;
+  if (futures === undefined) {
+    context.futures = [...newFutures];
+    return;
+  }
+  futures.push(...newFutures);
+}
+function addFuture(context, newFuture) {
+  const futures = context.futures;
+  if (futures === undefined) {
+    context.futures = [newFuture];
+    return;
+  }
+  futures.push(newFuture);
+}
+function withError(errors, error) {
+  return errors === undefined ? [error] : [...errors.values(), error];
+}
+function buildDataResponse(exeContext, data) {
+  const { errors, futures } = exeContext;
+  if (futures === undefined) {
+    return buildSingleResult(data, errors);
+  }
+  if (errors === undefined) {
     return (0, IncrementalPublisher_js_1.buildIncrementalResponse)(
+      exeContext,
       data,
-      errors,
+      undefined,
       futures,
-      cancellableStreams,
     );
   }
-  return errors.length > 0 ? { errors, data } : { data };
+  const filteredFutures = filterFutures(undefined, errors, futures);
+  if (filteredFutures.length === 0) {
+    return buildSingleResult(data, errors);
+  }
+  return (0, IncrementalPublisher_js_1.buildIncrementalResponse)(
+    exeContext,
+    data,
+    Array.from(errors.values()),
+    filteredFutures,
+  );
 }
-function filterFutures(initialPath, errorPaths, futures) {
-  if (errorPaths.size === 0) {
-    return futures;
-  }
+function buildSingleResult(data, errors) {
+  return errors !== undefined
+    ? { errors: Array.from(errors.values()), data }
+    : { data };
+}
+function filterFutures(initialPath, errors, futures) {
   const filteredFutures = [];
@@ -259,3 +271,3 @@ for (const future of futures) {
       : future.streamRecord.path;
-    if (errorPaths.has(currentPath)) {
+    if (errors.has(currentPath)) {
       continue;
@@ -272,3 +284,3 @@ }
       currentPath = currentPath.prev;
-      if (errorPaths.has(currentPath)) {
+      if (errors.has(currentPath)) {
         filtered = true;
@@ -285,6 +297,2 @@ break;
 }
-function buildErrorResponse(error, errors) {
-  errors.push(error);
-  return { data: null, errors };
-}
 /**
@@ -385,6 +393,2 @@ * Also implements the "Executing requests" section of the GraphQL specification.
       subscribeFieldResolver ?? exports.defaultFieldResolver,
-    errors: [],
-    errorPaths: new Set(),
-    futures: [],
-    cancellableStreams: new Set(),
   };
@@ -397,3 +401,3 @@ }
     rootValue: payload,
-    errors: [],
+    errors: undefined,
   };
@@ -683,5 +687,9 @@ }
   // a null value for this field if one is encountered.
-  const { errors, errorPaths } = incrementalContext ?? exeContext;
-  errors.push(error);
-  errorPaths.add(path);
+  const context = incrementalContext ?? exeContext;
+  let errors = context.errors;
+  if (errors === undefined) {
+    errors = new Map();
+    context.errors = errors;
+  }
+  errors.set(path, error);
 }
@@ -851,4 +859,5 @@ /**
   /* c8 ignore next 7 */
-  if (fieldGroup._streamUsage !== undefined) {
-    return fieldGroup._streamUsage;
+  let streamUsage = fieldGroup._streamUsage;
+  if (streamUsage !== undefined) {
+    return streamUsage;
   }
@@ -884,3 +893,3 @@ // validation only allows equivalent streams on multiple fields, so it is
   }));
-  const streamUsage = {
+  streamUsage = {
     initialCount: stream.initialCount,
@@ -919,2 +928,5 @@ label: typeof stream.label === 'string' ? stream.label : undefined,
       });
+      if (exeContext.cancellableStreams === undefined) {
+        exeContext.cancellableStreams = new Set();
+      }
       exeContext.cancellableStreams.add(streamRecord);
@@ -939,3 +951,4 @@ const firstStreamItems = firstAsyncStreamItems(
       );
-      (incrementalContext ?? exeContext).futures.push(firstStreamItems);
+      const context = incrementalContext ?? exeContext;
+      addFuture(context, firstStreamItems);
       break;
@@ -1042,3 +1055,4 @@ }
       );
-      (incrementalContext ?? exeContext).futures.push(firstStreamItems);
+      const context = incrementalContext ?? exeContext;
+      addFuture(context, firstStreamItems);
       break;
@@ -1407,5 +1421,4 @@ }
       );
-      (incrementalContext ?? exeContext).futures.push(
-        ...newDeferredGroupedFieldSetRecords,
-      );
+      const context = incrementalContext ?? exeContext;
+      addFutures(context, newDeferredGroupedFieldSetRecords);
     }
@@ -1441,5 +1454,4 @@ return subFields;
     );
-    (incrementalContext ?? exeContext).futures.push(
-      ...newDeferredGroupedFieldSetRecords,
-    );
+    const context = incrementalContext ?? exeContext;
+    addFutures(context, newDeferredGroupedFieldSetRecords);
   }
@@ -1762,37 +1774,65 @@ return subFields;
   } catch (error) {
-    incrementalContext.errors.push(error);
     return {
       deferredFragmentRecords,
       path: (0, Path_js_1.pathToArray)(path),
-      data: null,
-      errors: incrementalContext.errors,
+      result: null,
+      errors: withError(incrementalContext.errors, error),
     };
   }
-  const { errors, errorPaths, futures } = incrementalContext;
   if ((0, isPromise_js_1.isPromise)(data)) {
     return data.then(
-      (resolved) => ({
+      (resolved) =>
+        buildDeferredGroupedFieldSetResult(
+          incrementalContext,
+          deferredFragmentRecords,
+          path,
+          resolved,
+        ),
+      (error) => ({
         deferredFragmentRecords,
         path: (0, Path_js_1.pathToArray)(path),
-        data: resolved,
-        futures: filterFutures(path, errorPaths, futures),
-        errors,
+        result: null,
+        errors: withError(incrementalContext.errors, error),
       }),
-      (error) => {
-        incrementalContext.errors.push(error);
-        return {
-          deferredFragmentRecords,
-          path: (0, Path_js_1.pathToArray)(path),
-          data: null,
-          errors,
-        };
-      },
     );
   }
+  return buildDeferredGroupedFieldSetResult(
+    incrementalContext,
+    deferredFragmentRecords,
+    path,
+    data,
+  );
+}
+function buildDeferredGroupedFieldSetResult(
+  incrementalContext,
+  deferredFragmentRecords,
+  path,
+  data,
+) {
+  const { errors, futures } = incrementalContext;
+  if (futures === undefined) {
+    return {
+      deferredFragmentRecords,
+      path: (0, Path_js_1.pathToArray)(path),
+      result:
+        errors === undefined
+          ? {
+              data,
+            }
+          : { data, errors: [...errors.values()] },
+    };
+  }
+  if (errors === undefined) {
+    return {
+      deferredFragmentRecords,
+      path: (0, Path_js_1.pathToArray)(path),
+      result: { data },
+      futures,
+    };
+  }
   return {
     deferredFragmentRecords,
     path: (0, Path_js_1.pathToArray)(path),
-    data,
-    futures: filterFutures(path, errorPaths, futures),
-    errors,
+    result: { data, errors: [...errors.values()] },
+    futures: filterFutures(path, errors, futures),
   };
@@ -1900,3 +1940,3 @@ }
       streamRecord,
-      items: null,
+      result: null,
       errors: [
@@ -1966,3 +2006,2 @@ (0, locatedError_js_1.locatedError)(
 ) {
-  const { path, errors, errorPaths, futures } = incrementalContext;
   if ((0, isPromise_js_1.isPromise)(item)) {
@@ -1979,16 +2018,9 @@ return completePromisedValue(
     ).then(
-      (resolvedItem) => ({
+      (resolvedItem) =>
+        buildStreamItemsResult(incrementalContext, streamRecord, resolvedItem),
+      (error) => ({
         streamRecord,
-        items: [resolvedItem],
-        futures: filterFutures(path, errorPaths, futures),
-        errors,
+        result: null,
+        errors: withError(incrementalContext.errors, error),
       }),
-      (error) => {
-        errors.push(error);
-        return {
-          streamRecord,
-          items: null,
-          errors,
-        };
-      },
     );
@@ -2021,7 +2053,6 @@ }
   } catch (error) {
-    incrementalContext.errors.push(error);
     return {
       streamRecord,
-      items: null,
-      errors,
+      result: null,
+      errors: withError(incrementalContext.errors, error),
     };
@@ -2043,24 +2074,55 @@ }
       .then(
-        (resolvedItem) => ({
+        (resolvedItem) =>
+          buildStreamItemsResult(
+            incrementalContext,
+            streamRecord,
+            resolvedItem,
+          ),
+        (error) => ({
           streamRecord,
-          items: [resolvedItem],
-          futures: filterFutures(path, errorPaths, futures),
-          errors,
+          result: null,
+          errors: withError(incrementalContext.errors, error),
         }),
-        (error) => {
-          incrementalContext.errors.push(error);
-          return {
-            streamRecord,
-            items: null,
-            errors,
-          };
-        },
       );
   }
+  return buildStreamItemsResult(
+    incrementalContext,
+    streamRecord,
+    completedItem,
+  );
+}
+function buildStreamItemsResult(
+  incrementalContext,
+  streamRecord,
+  completedItem,
+) {
+  const { errors, futures } = incrementalContext;
+  if (futures === undefined) {
+    return {
+      streamRecord,
+      result:
+        errors === undefined
+          ? { items: [completedItem] }
+          : {
+              items: [completedItem],
+              errors: [...errors.values()],
+            },
+    };
+  }
+  if (errors === undefined) {
+    return {
+      streamRecord,
+      result: { items: [completedItem] },
+      futures,
+    };
+  }
+  const path = incrementalContext.path;
   return {
     streamRecord,
-    items: [completedItem],
-    futures: filterFutures(path, errorPaths, futures),
-    errors,
+    result: {
+      items: [completedItem],
+      errors: [...errors.values()],
+    },
+    futures: filterFutures(path, errors, futures),
   };
 }

execution/IncrementalPublisher.d.ts

@@ -83,8 +83,10 @@ import type { ObjMap } from '../jsutils/ObjMap.js';
 }
+interface RawDeferResult<TData = ObjMap<unknown>> {
+  errors?: ReadonlyArray<GraphQLError>;
+  data: TData;
+}
 export interface IncrementalDeferResult<
   TData = ObjMap<unknown>,
   TExtensions = ObjMap<unknown>,
-> {
-  errors?: ReadonlyArray<GraphQLError>;
-  data: TData;
+> extends RawDeferResult<TData> {
   id: string;
@@ -104,8 +106,10 @@ subPath?: ReadonlyArray<string | number>;
 }
+interface RawStreamItemsResult<TData = ReadonlyArray<unknown>> {
+  errors?: ReadonlyArray<GraphQLError>;
+  items: TData;
+}
 export interface IncrementalStreamResult<
-  TData = Array<unknown>,
+  TData = ReadonlyArray<unknown>,
   TExtensions = ObjMap<unknown>,
-> {
-  errors?: ReadonlyArray<GraphQLError>;
-  items: TData;
+> extends RawStreamItemsResult<TData> {
   id: string;
@@ -149,7 +153,10 @@ subPath?: ReadonlyArray<string | number>;
 export declare function buildIncrementalResponse(
+  context: IncrementalPublisherContext,
   result: ObjMap<unknown>,
-  errors: ReadonlyArray<GraphQLError>,
+  errors: ReadonlyArray<GraphQLError> | undefined,
   futures: ReadonlyArray<Future>,
-  cancellableStreams: Set<StreamRecord>,
 ): ExperimentalIncrementalExecutionResults;
+interface IncrementalPublisherContext {
+  cancellableStreams?: Set<StreamRecord> | undefined;
+}
 export declare function isDeferredFragmentRecord(
@@ -164,24 +171,27 @@ subsequentResultRecord: SubsequentResultRecord,
   path: Path | undefined;
-  errors: Array<GraphQLError>;
-  errorPaths: Set<Path>;
-  futures: Array<Future>;
+  errors?: Map<Path | undefined, GraphQLError> | undefined;
+  futures?: Array<Future> | undefined;
 }
-export interface DeferredGroupedFieldSetResult {
-  deferredFragmentRecords: ReadonlyArray<DeferredFragmentRecord>;
-  path: Array<string | number>;
-  data: ObjMap<unknown> | null;
-  futures?: ReadonlyArray<Future>;
-  errors: ReadonlyArray<GraphQLError>;
-}
+export type DeferredGroupedFieldSetResult =
+  | ReconcilableDeferredGroupedFieldSetResult
+  | NonReconcilableDeferredGroupedFieldSetResult;
 export declare function isDeferredGroupedFieldSetResult(
   subsequentResult: DeferredGroupedFieldSetResult | StreamItemsResult,
 ): subsequentResult is DeferredGroupedFieldSetResult;
-interface ReconcilableDeferredGroupedFieldSetResult
-  extends DeferredGroupedFieldSetResult {
-  data: ObjMap<unknown>;
+interface ReconcilableDeferredGroupedFieldSetResult {
+  deferredFragmentRecords: ReadonlyArray<DeferredFragmentRecord>;
+  path: Array<string | number>;
+  result: RawDeferResult;
+  futures?: ReadonlyArray<Future> | undefined;
   sent?: true | undefined;
 }
-export declare function isReconcilableDeferredGroupedFieldSetResult(
+interface NonReconcilableDeferredGroupedFieldSetResult {
+  result: null;
+  errors: ReadonlyArray<GraphQLError>;
+  deferredFragmentRecords: ReadonlyArray<DeferredFragmentRecord>;
+  path: Array<string | number>;
+}
+export declare function isNonReconcilableDeferredGroupedFieldSetResult(
   deferredGroupedFieldSetResult: DeferredGroupedFieldSetResult,
-): deferredGroupedFieldSetResult is ReconcilableDeferredGroupedFieldSetResult;
+): deferredGroupedFieldSetResult is NonReconcilableDeferredGroupedFieldSetResult;
 /** @internal */
@@ -229,11 +239,15 @@ export declare class DeferredGroupedFieldSetRecord {
 }
-interface NonTerminatingStreamItemsResult {
+interface NonReconcilableStreamItemsResult {
   streamRecord: StreamRecord;
-  items: ReadonlyArray<unknown> | null;
-  futures?: ReadonlyArray<Future>;
+  result: null;
   errors: ReadonlyArray<GraphQLError>;
 }
+interface NonTerminatingStreamItemsResult {
+  streamRecord: StreamRecord;
+  result: RawStreamItemsResult;
+  futures?: ReadonlyArray<Future> | undefined;
+}
 interface TerminatingStreamItemsResult {
   streamRecord: StreamRecord;
-  items?: never;
+  result?: never;
   futures?: never;
@@ -243,4 +257,8 @@ errors?: never;
 export type StreamItemsResult =
+  | NonReconcilableStreamItemsResult
   | NonTerminatingStreamItemsResult
   | TerminatingStreamItemsResult;
+export declare function isNonTerminatingStreamItemsResult(
+  streamItemsResult: StreamItemsResult,
+): streamItemsResult is NonTerminatingStreamItemsResult;
 /** @internal */
@@ -247,0 +265,0 @@ export declare class StreamItemsRecord {

execution/IncrementalPublisher.js

 'use strict';
 Object.defineProperty(exports, '__esModule', { value: true });
 exports.StreamItemsRecord =
+  exports.isNonTerminatingStreamItemsResult =
   exports.StreamRecord =
   exports.DeferredFragmentRecord =
   exports.DeferredGroupedFieldSetRecord =
-  exports.isReconcilableDeferredGroupedFieldSetResult =
+  exports.isNonReconcilableDeferredGroupedFieldSetResult =
   exports.isDeferredGroupedFieldSetResult =
@@ -16,4 +17,4 @@ exports.isDeferredGroupedFieldSetRecord =
 const promiseWithResolvers_js_1 = require('../jsutils/promiseWithResolvers.js');
-function buildIncrementalResponse(result, errors, futures, cancellableStreams) {
-  const incrementalPublisher = new IncrementalPublisher(cancellableStreams);
+function buildIncrementalResponse(context, result, errors, futures) {
+  const incrementalPublisher = new IncrementalPublisher(context);
   return incrementalPublisher.buildResponse(result, errors, futures);
@@ -29,4 +30,4 @@ }
 class IncrementalPublisher {
-  constructor(cancellableStreams) {
-    this._cancellableStreams = cancellableStreams;
+  constructor(context) {
+    this._context = context;
     this._nextId = 0;
@@ -45,3 +46,3 @@ this._pending = new Set();
     const initialResult =
-      errors.length === 0
+      errors === undefined
         ? { data, pending, hasNext: true }
@@ -212,4 +213,8 @@ : { errors, data, pending, hasNext: true };
     const returnStreamIterators = async () => {
+      const cancellableStreams = this._context.cancellableStreams;
+      if (cancellableStreams === undefined) {
+        return;
+      }
       const promises = [];
-      for (const streamRecord of this._cancellableStreams) {
+      for (const streamRecord of cancellableStreams) {
         if (streamRecord.earlyReturn !== undefined) {
@@ -253,8 +258,15 @@ promises.push(streamRecord.earlyReturn());
   }
-  _handleCompletedDeferredGroupedFieldSet(result) {
-    if (!isReconcilableDeferredGroupedFieldSetResult(result)) {
-      for (const deferredFragmentRecord of result.deferredFragmentRecords) {
+  _handleCompletedDeferredGroupedFieldSet(deferredGroupedFieldSetResult) {
+    if (
+      isNonReconcilableDeferredGroupedFieldSetResult(
+        deferredGroupedFieldSetResult,
+      )
+    ) {
+      for (const deferredFragmentRecord of deferredGroupedFieldSetResult.deferredFragmentRecords) {
         const id = deferredFragmentRecord.id;
         if (id !== undefined) {
-          this._completed.push({ id, errors: result.errors });
+          this._completed.push({
+            id,
+            errors: deferredGroupedFieldSetResult.errors,
+          });
           this._pending.delete(deferredFragmentRecord);
@@ -265,9 +277,11 @@ }
     }
-    for (const deferredFragmentRecord of result.deferredFragmentRecords) {
-      deferredFragmentRecord.reconcilableResults.push(result);
+    for (const deferredFragmentRecord of deferredGroupedFieldSetResult.deferredFragmentRecords) {
+      deferredFragmentRecord.reconcilableResults.push(
+        deferredGroupedFieldSetResult,
+      );
     }
-    if (result.futures) {
-      this._addFutures(result.futures);
+    if (deferredGroupedFieldSetResult.futures) {
+      this._addFutures(deferredGroupedFieldSetResult.futures);
     }
-    for (const deferredFragmentRecord of result.deferredFragmentRecords) {
+    for (const deferredFragmentRecord of deferredGroupedFieldSetResult.deferredFragmentRecords) {
       const id = deferredFragmentRecord.id;
@@ -299,8 +313,5 @@ // TODO: add test case for this.
         const incrementalEntry = {
-          data: fragmentResult.data,
+          ...fragmentResult.result,
           id: bestId,
         };
-        if (result.errors.length > 0) {
-          incrementalEntry.errors = fragmentResult.errors;
-        }
         if (subPath !== undefined) {
@@ -324,4 +335,4 @@ incrementalEntry.subPath = subPath;
   }
-  _handleCompletedStreamItems(result) {
-    const streamRecord = result.streamRecord;
+  _handleCompletedStreamItems(streamItemsResult) {
+    const streamRecord = streamItemsResult.streamRecord;
     const id = streamRecord.id;
@@ -334,13 +345,19 @@ // TODO: Consider adding invariant or non-null assertion, as this should never happen. Since the stream is converted into a linked list
     }
-    if (result.items === undefined) {
+    if (streamItemsResult.result === undefined) {
       this._completed.push({ id });
       this._pending.delete(streamRecord);
-      this._cancellableStreams.delete(streamRecord);
-    } else if (result.items === null) {
+      const cancellableStreams = this._context.cancellableStreams;
+      if (cancellableStreams !== undefined) {
+        cancellableStreams.delete(streamRecord);
+      }
+    } else if (streamItemsResult.result === null) {
       this._completed.push({
         id,
-        errors: result.errors,
+        errors: streamItemsResult.errors,
       });
       this._pending.delete(streamRecord);
-      this._cancellableStreams.delete(streamRecord);
+      const cancellableStreams = this._context.cancellableStreams;
+      if (cancellableStreams !== undefined) {
+        cancellableStreams.delete(streamRecord);
+      }
       streamRecord.earlyReturn?.().catch(() => {
@@ -353,10 +370,7 @@ /* c8 ignore next 1 */
         id,
-        items: result.items, // FIX!
+        ...streamItemsResult.result,
       };
-      if (result.errors !== undefined && result.errors.length > 0) {
-        incrementalEntry.errors = result.errors;
-      }
       this._incremental.push(incrementalEntry);
-      if (result.futures) {
-        this._addFutures(result.futures);
+      if (streamItemsResult.futures) {
+        this._addFutures(streamItemsResult.futures);
         this._pruneEmpty();
@@ -413,9 +427,9 @@ }
 exports.isDeferredGroupedFieldSetResult = isDeferredGroupedFieldSetResult;
-function isReconcilableDeferredGroupedFieldSetResult(
+function isNonReconcilableDeferredGroupedFieldSetResult(
   deferredGroupedFieldSetResult,
 ) {
-  return deferredGroupedFieldSetResult.data !== null;
+  return deferredGroupedFieldSetResult.result === null;
 }
-exports.isReconcilableDeferredGroupedFieldSetResult =
-  isReconcilableDeferredGroupedFieldSetResult;
+exports.isNonReconcilableDeferredGroupedFieldSetResult =
+  isNonReconcilableDeferredGroupedFieldSetResult;
 /** @internal */
@@ -430,5 +444,2 @@ class DeferredGroupedFieldSetRecord {
       path,
-      errors: [],
-      errorPaths: new Set(),
-      futures: [],
     };
@@ -469,2 +480,6 @@ for (const deferredFragmentRecord of deferredFragmentRecords) {
 exports.StreamRecord = StreamRecord;
+function isNonTerminatingStreamItemsResult(streamItemsResult) {
+  return streamItemsResult.result != null;
+}
+exports.isNonTerminatingStreamItemsResult = isNonTerminatingStreamItemsResult;
 /** @internal */
@@ -478,5 +493,2 @@ class StreamItemsRecord {
       path: itemPath,
-      errors: [],
-      errorPaths: new Set(),
-      futures: [],
     };
@@ -494,10 +506,11 @@ this._result = executor(incrementalContext);
   _prependNextStreamItems(result) {
-    return this.nextStreamItems === undefined
-      ? result
-      : {
+    return isNonTerminatingStreamItemsResult(result) &&
+      this.nextStreamItems !== undefined
+      ? {
           ...result,
           futures: [this.nextStreamItems, ...(result.futures ?? [])],
-        };
+        }
+      : result;
   }
 }
 exports.StreamItemsRecord = StreamItemsRecord;

package.json

 {
   "name": "graphql",
-  "version": "17.0.0-alpha.3.canary.pr.4026.5e657d31b3abdc38acd6bb21c50ed3a41aa33905",
+  "version": "17.0.0-alpha.3.canary.pr.4026.74aa85f56dea9ab9feb4445165eb0e2347ea674f",
   "description": "A Query Language and Runtime which can target any service.",
@@ -5,0 +5,0 @@ "license": "MIT",

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Improved metrics

Total package byte prevSize

1433974

increased by0.32%

Lines of code

44450

increased by0.26%

Worsened metrics

Number of package files

412

decreased by-0.72%

No dependency changes