We have been discussing supporting scripting inside WebSharper applications as well. One of the requirements was the ability to interpret/translate these scripts to JavaScript on the client without any server intervention.
The approach we adopted is quite simple: we fix a subset of F# and call it "F# Script". We then develop a translator for F# Script to JavaScript in F#, translate it to JavaScript with WebSharper, and package it as a standalone library to be included in client-side WebSharper code (a trivial WebSharper extension can track this dependency automatically). At this point, any WebSharper application that uses F# Script on the client side can integrate scripting capabilities without having to re-compile that application.
The only cost incurred is running the F# Script interpreter once, which should be well below the sub-second boundary for most scripts.
If anyone has an interesting idea where scripting can play an important role, please pitch in on this thread.
Thanks, Adam.
While I'd prefer to use quotations, the current potential victor looks like it will use the CodeDom + MEF.
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I've wanted to add the ability to support scripts as web applications via Frank and was planning on using fsi to do so. However, I was wondering if using the FSharp.Compiler assembly might offer a more efficient mechanism for compiling on-demand and then storing the resulting assembly for re-use. Has anyone tried anything like this?
Edit: I just saw another question referencing Microsoft.FSharp.Compiler.CodeDom. I think what I would really like is a function of the following signature: