The proto-Idris-2 doesn't have high level constructs yet, but it has Elaborator Reflection now so I'll probably implement the rest of it that way...
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Ooh, what magic is this `%runElab` thingy? How does it know about those user-defined data types you made in that gist? Does it verify that they're of the right 'shape' first, or is it more of a macro-style thing?
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Oh right, cool! Think I've come across that one before!
Kind of looks similar to what I've been wondering - could you consider have a language that just treated the file as some statically run monady thing, then commands like `data` and `import` would just be functions that alter the environment…
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That's pretty much how it works. Reflection exposes that, so as long as the overhead is low (which it is) it seems a plausible way to implement the rest (e.g. records, interfaces, etc)
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