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fix(go): avoid concurrent issues #3700

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fix(go): avoid concurrent issues #3700

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15 changes: 13 additions & 2 deletions go/internal/registry/registry.go
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Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,7 @@ func (r *Registry) NewChild() api.Registry {
actions: map[string]api.Action{},
plugins: map[string]api.Plugin{},
values: map[string]any{},
dotprompt: r.dotprompt,
dotprompt: deepCopyDotPrompt(r.dotprompt),
}
return child
}
Expand Down Expand Up @@ -316,5 +316,16 @@ func (r *Registry) RegisterHelper(name string, fn any) {
func (r *Registry) Dotprompt() *dotprompt.Dotprompt {
r.mu.RLock()
defer r.mu.RUnlock()
return r.dotprompt
return deepCopyDotPrompt(r.dotprompt)
}

func deepCopyDotPrompt(dot *dotprompt.Dotprompt) *dotprompt.Dotprompt {
newDot := dotprompt.NewDotprompt(&dotprompt.DotpromptOptions{
Helpers: make(map[string]any),
Partials: make(map[string]string),
})
maps.Copy(newDot.Helpers, dot.Helpers)
maps.Copy(newDot.Partials, dot.Partials)
maps.Copy(newDot.Schemas, dot.Schemas)
return newDot
}