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Allow types defined with type keyword to be recursive. #2212

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spotandjake opened this issue Dec 1, 2024 · 0 comments
Open

Allow types defined with type keyword to be recursive. #2212

spotandjake opened this issue Dec 1, 2024 · 0 comments
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compiler types

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@spotandjake
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Currently we give an error Error: The type abbreviation TreeNode is cyclic on code such as:

type TreeNode = (Number, Option<TreeNode>, Option<TreeNode>)

we should probably support this being recursive interestingly enough the syntax:

type rec TreeNode = (Number, Option<TreeNode>, Option<TreeNode>)

doesn't cause a parsing or well formedness error leading me to believe that this might actually just be a bug rather than a missing feature.
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