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Add warning when registering struct functions as workflows #1996

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yuandrew wants to merge 4 commits into from
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Add warning when registering struct functions as workflows #1996

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4fa5051
Add warning for defining struct
yuandrew Jul 8, 2025
575b486
warn on -fm, not on WorkflowDefinitionFactory
yuandrew Jul 10, 2025
61173fd
Add function name to warning log
yuandrew Jul 10, 2025
3b0b595
Don't abbreviate NDE
yuandrew Jul 10, 2025
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4 changes: 4 additions & 0 deletions internal/internal_worker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1147,6 +1147,10 @@ func (aw *AggregatedWorker) RegisterWorkflow(w interface{}) {
aw.executionParams.DefaultVersioningBehavior == VersioningBehaviorUnspecified {
panic("workflow type does not have a versioning behavior")
}
fnName := runtime.FuncForPC(reflect.ValueOf(w).Pointer()).Name()
if strings.HasSuffix(fnName, "-fm") {
aw.logger.Warn("Registering workflow" + fnName + ". It is recommended to only use struct methods to define activity functions. In some cases, struct methods as workflows may cause non-deterministic errors.")
}
aw.registry.RegisterWorkflow(w)
}

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