fix where cancellation happens for objects

extracted from graphql#4259

Author: yaacovCR

src/execution/__tests__/abort-signal-test.ts

@@ -71,8 +71,8 @@ describe('Execute: Cancellation', () => {
       errors: [
         {
           message: 'Aborted',
-          path: ['todo', 'id'],
-          locations: [{ line: 4, column: 11 }],
+          path: ['todo'],
+          locations: [{ line: 3, column: 9 }],
         },
       ],
     });
@@ -120,8 +120,8 @@ describe('Execute: Cancellation', () => {
       errors: [
         {
           message: 'Aborted',
-          path: ['todo', 'author', 'id'],
-          locations: [{ line: 6, column: 13 }],
+          path: ['todo', 'author'],
+          locations: [{ line: 5, column: 11 }],
         },
       ],
     });

src/execution/execute.ts

@@ -573,15 +573,6 @@ function executeFields(
   try {
     for (const [responseName, fieldDetailsList] of groupedFieldSet) {
       const fieldPath = addPath(path, responseName, parentType.name);
-      const abortSignal = exeContext.validatedExecutionArgs.abortSignal;
-      if (abortSignal?.aborted) {
-        throw locatedError(
-          new Error(abortSignal.reason),
-          toNodes(fieldDetailsList),
-          pathToArray(fieldPath),
-        );
-      }
-
       const result = executeField(
         exeContext,
         parentType,
@@ -1313,13 +1304,23 @@ function completeObjectValue(
   path: Path,
   result: unknown,
 ): PromiseOrValue<ObjMap<unknown>> {
+  const validatedExecutionArgs = exeContext.validatedExecutionArgs;
+  const abortSignal = validatedExecutionArgs.abortSignal;
+  if (abortSignal?.aborted) {
+    throw locatedError(
+      new Error(abortSignal.reason),
+      toNodes(fieldDetailsList),
+      pathToArray(path),
+    );
+  }
+
   // If there is an isTypeOf predicate function, call it with the
   // current result. If isTypeOf returns false, then raise an error rather
   // than continuing execution.
   if (returnType.isTypeOf) {
     const isTypeOf = returnType.isTypeOf(
       result,
-      exeContext.validatedExecutionArgs.contextValue,
+      validatedExecutionArgs.contextValue,
       info,
     );