Support pattern matching in let declarations
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enhancement
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- Dominant language
- Standard ML
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Description
Currently the grammar only supports a limited subset of declarations within `let` expressions (the `LetDec` non-terminal). It would be nice if these could be expanded to allow pattern-matching and wildcards.
(Supporting everything in `Decl` would be great, but presumably local type declarations are the problem. This issue can be closed without supporting them.)
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