Add support for multiple context types mixins #137
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martinklepsch
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martinklepsch
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I think it's a worthy addition, context can be a useful tool but for that it needs to be composable.
Great to see you're using derivatives also 🙂
| :childContextTypes | ||
| (when-not (empty? child-context-types) | ||
| (clj->js (apply merge child-context-types)))} | ||
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Using a merge here that warns (or throws even) on conflicts would be good I think. This way using 3rd party mixins is "safe" and free from surprises.
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I think you are right, it should probably throw in there. If the user really wants to override the context types put there by mixins, he can still do it with a {:class-properties {:contextTypes ... }} map that will override everything.
Also, thanks a lot for the derivatives library!
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Implementation to illustrate my suggestion on #136
It works, using
child-context-typesandcontext-typesto aggregate the different types correctly. But you have to be careful not to have a{:class-properties {:context-types ...}}in one of your mixins, as it will be applied last and override whatever you had in the top level:context-types(idem for:child-context-types)