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yield all available payloads as a list #1

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45 changes: 24 additions & 21 deletions spec/Section 6 -- Execution.md
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Original file line number Diff line number Diff line change
Expand Up @@ -142,12 +142,12 @@ ExecuteQuery(query, schema, variableValues, initialValue):
{hasNext} with the value {true}.
- Let {iterator} be the result of running
{YieldSubsequentPayloads(subsequentPayloads)}.
- For each {payload} yielded by {iterator}:
- For each {payloadList} yielded by {iterator}:
- If a termination signal is received:
- Send a termination signal to {iterator}.
- Return.
- Otherwise:
- Yield {payload}.
- Yield {payloadList}.

### Mutation

Expand Down Expand Up @@ -175,12 +175,12 @@ ExecuteMutation(mutation, schema, variableValues, initialValue):
{hasNext} with the value {true}.
- Let {iterator} be the result of running
{YieldSubsequentPayloads(subsequentPayloads)}.
- For each {payload} yielded by {iterator}:
- For each {payloadList} yielded by {iterator}:
- If a termination signal is received:
- Send a termination signal to {iterator}.
- Return.
- Otherwise:
- Yield {payload}.
- Yield {payloadList}.

### Subscription

Expand Down Expand Up @@ -337,12 +337,12 @@ ExecuteSubscriptionEvent(subscription, schema, variableValues, initialValue):
{hasNext} with the value {true}.
- Let {iterator} be the result of running
{YieldSubsequentPayloads(subsequentPayloads)}.
- For each {payload} yielded by {iterator}:
- For each {payloadList} yielded by {iterator}:
- If a termination signal is received:
- Send a termination signal to {iterator}.
- Return.
- Otherwise:
- Yield {payload}.
- Yield {payloadList}.

Note: The {ExecuteSubscriptionEvent()} algorithm is intentionally similar to
{ExecuteQuery()} since this is how each event result is produced.
Expand Down Expand Up @@ -372,21 +372,24 @@ YieldSubsequentPayloads(subsequentPayloads):
- If {record} contains {iterator}:
- Send a termination signal to {iterator}.
- Return.
- Let {record} be the first item in {subsequentPayloads} with a completed
{dataExecution}.
- Remove {record} from {subsequentPayloads}.
- If {isCompletedIterator} on {record} is {true}:
- If {subsequentPayloads} is empty:
- Yield a map containing a field `hasNext` with the value {false}.
- Return.
- If {subsequentPayloads} is not empty:
- Continue to the next record in {subsequentPayloads}.
- Let {payload} be the completed result returned by {dataExecution}.
- If {record} is not the final element in {subsequentPayloads}:
- Add an entry to {payload} named `hasNext` with the value {true}.
- If {record} is the final element in {subsequentPayloads}:
- Add an entry to {payload} named `hasNext` with the value {false}.
- Yield {payload}
- Let {completed} be the next set of items in {subsequentPayloads} with
completed {dataExecution} results.
- Initialize {payloadList} to an empty list.
- For each {record} in {completed}.
- Remove {record} from {subsequentPayloads}.
- If {isCompletedIterator} on {record} is {true}:
- If {subsequentPayloads} is empty:
- Yield a map containing a field `hasNext` with the value {false}.
- Return.
- If {subsequentPayloads} is not empty:
- Continue to the next record in {subsequentPayloads}.
- Let {payload} be the completed result returned by {dataExecution}.
- If {record} is not the final element in {subsequentPayloads}:
- Add an entry to {payload} named `hasNext` with the value {true}.
- If {record} is the final element in {subsequentPayloads}:
- Add an entry to {payload} named `hasNext` with the value {false}.
- Append {payload} to {payloadList}
- Yield {payloadList}

## Executing Selection Sets

Expand Down