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Struct tuple type alias should give better error message #7014

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NinoFloris opened this issue Jun 18, 2019 · 3 comments
Open

Struct tuple type alias should give better error message #7014

NinoFloris opened this issue Jun 18, 2019 · 3 comments
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Area-Diagnostics mistakes and possible improvements to diagnostics Feature Improvement
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Backlog

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@NinoFloris
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Struct tuple type alias should give better error message

type Alias = struct(int * int)

This just errors with Unexpected symbol '(' in member definition

You really have to know to wrap the full signature for it to succeed. Optionally a docs entry would help too.

As this works:

type Alias = (struct(int * int))
@smoothdeveloper
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!!! I've hit that and thought it was a (rather odd) limitation of type aliases...

Another "some lisp baggage saves the day of some" moment 🙂

@cartermp cartermp added this to the Backlog milestone Jun 18, 2019
@voronoipotato
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A good question imho is, should this even fail? I suppose I need to read the spec.

@auduchinok
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A good question imho is, should this even fail?

I suppose it should be possible to write an abbreviation this way.

@maxdeviant maxdeviant mentioned this issue Dec 17, 2019
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@dsyme dsyme added Area-Diagnostics mistakes and possible improvements to diagnostics and removed Area-Compiler labels Mar 31, 2022
@vzarytovskii vzarytovskii moved this to Not Planned in F# Compiler and Tooling Jun 17, 2022
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Area-Diagnostics mistakes and possible improvements to diagnostics Feature Improvement
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@smoothdeveloper @voronoipotato @auduchinok @NinoFloris @cartermp @dsyme