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Pattern matching #39

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zot opened this issue Jul 8, 2012 · 1 comment

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zot commented Jul 8, 2012

Type assertions work, but more general patterns would be nice. This is a decent way to allow extending definitions.

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zot commented Nov 1, 2012

destructor functions can take a nested structure and return a list of values in order

structures are

struct(type partsList)
var
lit(value)

the structure for f x::[a [b c] | d] would be: struct('cons' [var struct('cons' [struct('cons' [var struct('cons' var lit(nil))]) var])]

the structure for f x::(person name addr) would be struct('person' [var var])

structures could be type[ ... ] or (type ...), with [] standing for just a cons

Patterns could work in lets, as well

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