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merged 1 commit into from
Sep 24, 2022
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Prevent infering type parameters on getset props #13978

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4 changes: 3 additions & 1 deletion src/Compiler/Checking/CheckExpressions.fs
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Expand Up @@ -2185,7 +2185,9 @@ module GeneralizationHelpers =
| Some memberFlags ->
match memberFlags.MemberKind with
// can't infer extra polymorphism for properties
| SynMemberKind.PropertyGet | SynMemberKind.PropertySet -> false
| SynMemberKind.PropertyGet
| SynMemberKind.PropertySet
| SynMemberKind.PropertyGetSet -> false
// can't infer extra polymorphism for class constructors
| SynMemberKind.ClassConstructor -> false
// can't infer extra polymorphism for constructors
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46 changes: 26 additions & 20 deletions tests/fsharp/typecheck/sigs/neg32.bsl
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Expand Up @@ -3,42 +3,48 @@ neg32.fs(17,21,17,49): typecheck error FS0842: This attribute is not valid for u

neg32.fs(24,15,24,16): typecheck error FS0043: The member or object constructor 'TryParse' does not take 1 argument(s). An overload was found taking 2 arguments.

neg32.fs(39,17,39,19): typecheck error FS0039: The type parameter 'T is not defined.
neg32.fs(43,17,43,19): typecheck error FS0039: The type parameter 'T is not defined.

neg32.fs(40,4,40,23): typecheck error FS0671: A property cannot have explicit type parameters. Consider using a method instead.
neg32.fs(44,4,44,23): typecheck error FS0671: A property cannot have explicit type parameters. Consider using a method instead.

neg32.fs(40,21,40,23): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(44,21,44,23): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(41,21,41,23): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(45,21,45,23): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(41,27,41,29): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(45,27,45,29): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(42,18,42,20): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(46,18,46,20): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(42,24,42,26): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(46,24,46,26): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(46,17,46,19): typecheck error FS0039: The type parameter 'T is not defined.
neg32.fs(50,17,50,19): typecheck error FS0039: The type parameter 'T is not defined.

neg32.fs(47,4,47,23): typecheck error FS0671: A property cannot have explicit type parameters. Consider using a method instead.
neg32.fs(51,4,51,23): typecheck error FS0671: A property cannot have explicit type parameters. Consider using a method instead.

neg32.fs(47,21,47,23): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(51,21,51,23): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(48,21,48,23): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(52,21,52,23): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(48,27,48,29): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(52,27,52,29): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(49,18,49,20): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(53,18,53,20): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(49,24,49,26): typecheck error FS0039: The type parameter 'U is not defined.
neg32.fs(53,24,53,26): typecheck error FS0039: The type parameter 'U is not defined.

neg32.fs(52,10,52,12): typecheck error FS0039: The type parameter 'T is not defined.
neg32.fs(54,18,54,20): typecheck error FS0039: The type parameter 'T is not defined.

neg32.fs(52,10,52,12): typecheck error FS0039: The type parameter 'T is not defined.
neg32.fs(55,18,55,20): typecheck error FS0039: The type parameter 'T is not defined.

neg32.fs(55,11,55,13): typecheck error FS0039: The type parameter 'T is not defined.
neg32.fs(56,18,56,20): typecheck error FS0039: The type parameter 'T is not defined.

neg32.fs(55,11,55,13): typecheck error FS0039: The type parameter 'T is not defined.
neg32.fs(59,10,59,12): typecheck error FS0039: The type parameter 'T is not defined.

neg32.fs(59,65,59,86): typecheck error FS0033: The non-generic type 'System.EventArgs' does not expect any type arguments, but here is given 1 type argument(s)
neg32.fs(59,10,59,12): typecheck error FS0039: The type parameter 'T is not defined.

neg32.fs(59,21,59,27): typecheck error FS1091: The event 'Event1' has a non-standard type. If this event is declared in another CLI language, you may need to access this event using the explicit add_Event1 and remove_Event1 methods for the event. If this event is declared in F#, make the type of the event an instantiation of either 'IDelegateEvent<_>' or 'IEvent<_,_>'.
neg32.fs(62,11,62,13): typecheck error FS0039: The type parameter 'T is not defined.

neg32.fs(62,11,62,13): typecheck error FS0039: The type parameter 'T is not defined.

neg32.fs(66,65,66,86): typecheck error FS0033: The non-generic type 'System.EventArgs' does not expect any type arguments, but here is given 1 type argument(s)

neg32.fs(66,21,66,27): typecheck error FS1091: The event 'Event1' has a non-standard type. If this event is declared in another CLI language, you may need to access this event using the explicit add_Event1 and remove_Event1 methods for the event. If this event is declared in F#, make the type of the event an instantiation of either 'IDelegateEvent<_>' or 'IEvent<_,_>'.
9 changes: 8 additions & 1 deletion tests/fsharp/typecheck/sigs/neg32.fs
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Expand Up @@ -34,7 +34,11 @@ type PositiveClass<'A>() =
abstract M<'T> : 'T -> 'T
abstract M2<'T> : 'T -> 'A
abstract M : 'U -> 'U

abstract M3 : 'A with get, set
abstract M4 : 'A with set
abstract M5 : 'A with get


type NegativeInterface =
abstract v : 'T
abstract M<'T> : 'U
Expand All @@ -47,6 +51,9 @@ type NegativeClass() =
abstract M<'T> : 'U
abstract M<'T> : 'U -> 'U
abstract M : ('U -> 'U)
abstract M2 : 'T with get, set
abstract M3 : 'T with set
abstract M4 : 'T with get

type NegativeRecord =
{ v : 'T }
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