refactor: remove PreExecCheck leaky abstraction and fix sync-over-async#405
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currantw merged 4 commits intoMay 14, 2026
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ValkeyBatch.PreExecCheck() was a virtual hook that existed solely to support transaction preconditions. Batches have no concept of preconditions, so this was transaction-specific logic leaking into the base class. Additionally, ValkeyTransaction.PreExecCheck() called ExecuteImpl().GetAwaiter().GetResult() — the last remaining sync-over-async call in the codebase — which risks deadlocks in environments with a synchronization context (e.g. ASP.NET). Changes: - Remove virtual PreExecCheck() from ValkeyBatch and the if (PreExecCheck()) guard from ExecuteImpl(). ExecuteImpl() now unconditionally executes the batch, which is the correct behaviour for ValkeyBatch (conditions are a transaction concern only). - Move condition evaluation into ValkeyTransaction.ExecuteAsync() directly, using await instead of .GetAwaiter().GetResult(). - Short-circuit early (set _tcs result to null and return false) as soon as any condition fails, avoiding unnecessary work. - Rename the inner batch variable from b to conditionBatch for clarity. Fixes valkey-io#266 Signed-off-by: currantw <taylor.curran@improving.com>
Signed-off-by: currantw <taylor.curran@improving.com>
…-io#402) Signed-off-by: currantw <taylor.curran@improving.com>
… into refactor/remove-pre-exec-check-leaky-abstraction
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xShinnRyuu
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Based on #359 (by @makubo-aws) with DCO signoff added. Closes #266.