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[dotnet-code] Extract message forwarding helpers #462

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Merged
George Adams (gdams) merged 1 commit into from
Jul 10, 2026
Merged

[dotnet-code] Extract message forwarding helpers #462

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60 changes: 38 additions & 22 deletions message/messageworkflow/messageforwarding.go
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Original file line number Diff line number Diff line change
Expand Up @@ -41,32 +41,48 @@ func ConfigureForwarding(executor *workflow.Executor, options *ForwardingOptions
reflect.TypeFor[workflow.TurnToken](),
)
if stringMessageRole != "" {
rb.RouteBuilder.AddHandlerRaw(reflect.TypeFor[string](), nil, func(ctx *workflow.Context, msg any) (any, error) {
return struct{}{}, ctx.SendMessage("", &message.Message{
Role: stringMessageRole,
Contents: []message.Content{&message.TextContent{Text: msg.(string)}},
})
})
rb.RouteBuilder.AddHandlerRaw(reflect.TypeFor[string](), nil, forwardStringMessage(stringMessageRole))
}
rb.RouteBuilder.
AddHandlerRaw(reflect.TypeFor[*message.Message](), nil, func(ctx *workflow.Context, msg any) (any, error) {
return struct{}{}, ctx.SendMessage("", msg.(*message.Message))
}).
AddHandlerRaw(reflect.TypeFor[[]*message.Message](), nil, func(ctx *workflow.Context, msg any) (any, error) {
return struct{}{}, ctx.SendMessage("", msg.([]*message.Message))
}).
AddHandlerRaw(reflect.TypeFor[iter.Seq[*message.Message]](), nil, func(ctx *workflow.Context, msg any) (any, error) {
messages := make([]*message.Message, 0)
for msg := range msg.(iter.Seq[*message.Message]) {
messages = append(messages, msg)
}
return struct{}{}, ctx.SendMessage("", messages)
}).
AddHandlerRaw(reflect.TypeFor[workflow.TurnToken](), nil, func(ctx *workflow.Context, msg any) (any, error) {
return struct{}{}, ctx.SendMessage("", msg.(workflow.TurnToken))
})
AddHandlerRaw(reflect.TypeFor[*message.Message](), nil, forwardMessage).
AddHandlerRaw(reflect.TypeFor[[]*message.Message](), nil, forwardMessages).
AddHandlerRaw(reflect.TypeFor[iter.Seq[*message.Message]](), nil, forwardMessageSeq).
AddHandlerRaw(reflect.TypeFor[workflow.TurnToken](), nil, forwardTurnToken)
return rb, nil
},
}
executor.Extend(&forwardingExecutor)
}

func forwardStringMessage(role message.Role) func(*workflow.Context, any) (any, error) {
return func(ctx *workflow.Context, msg any) (any, error) {
return struct{}{}, ctx.SendMessage("", &message.Message{
Role: role,
Contents: []message.Content{&message.TextContent{Text: msg.(string)}},
})
}
}

func forwardMessage(ctx *workflow.Context, msg any) (any, error) {
return struct{}{}, ctx.SendMessage("", msg.(*message.Message))
}

func forwardMessages(ctx *workflow.Context, msg any) (any, error) {
return struct{}{}, ctx.SendMessage("", msg.([]*message.Message))
}

func forwardMessageSeq(ctx *workflow.Context, msg any) (any, error) {
return struct{}{}, ctx.SendMessage("", messageSeqToSlice(msg.(iter.Seq[*message.Message])))
}

func forwardTurnToken(ctx *workflow.Context, msg any) (any, error) {
return struct{}{}, ctx.SendMessage("", msg.(workflow.TurnToken))
}

func messageSeqToSlice(seq iter.Seq[*message.Message]) []*message.Message {
messages := make([]*message.Message, 0)
for msg := range seq {
messages = append(messages, msg)
}
return messages
}
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