Revert "Optimize Deferred execution (#1805)"

[grossmannmartin]

Description

This reverts commit that was merged in #1805.

Reason for Revert

PR #1805 introduced a breaking change in a minor version by removing public API methods from SyncPromise:

• SyncPromise::runQueue() - removed
• SyncPromise::getQueue() - removed

These methods were replaced by a new SyncPromiseQueue class, but the original public methods were not preserved for backward compatibility.

Impact

The runQueue() method is used by external libraries, notably https://github.com/overblog/dataloader-php, in their WebonyxGraphQLSyncPromiseAdapter

After upgrading to v15.29.0, any code relying on these public methods fails.

Recommendation

The memory optimization from #1805 is valuable and should be re-introduced, but with proper backward compatibility:

1. Keep SyncPromise::runQueue() and SyncPromise::getQueue() as deprecated wrappers
2. Add deprecation notices pointing to SyncPromiseQueue
3. Remove the deprecated methods in the next major version (v16.0.0)

Related

• Original PR: Optimize Deferred execution #1805
• Affected library: https://github.com/overblog/dataloader-php

[spawnia]

We can discuss a resolution for the issue you are seeing in #1820, I do not plan to revert though.