Description
Enum type is lost (casted to int32) when used in attribute named argument of type obj.
http://stackoverflow.com/questions/35732830/how-to-preserve-value-type-in-enum
Repro Steps
Create attribute with named argument of type obj. Add that attribute and assign enum value to named argument.
type MyAttribute() =
inherit Attribute()
let mutable prop = null
member this.Prop
with get(): obj = prop
and set(value) = prop <- value
type MyEnum =
| A = 1
| B = 2
[<My(Prop = MyEnum.B)>]
type MyClass = class
end
let test () =
let t = typeof<MyClass>
let a = t.GetCustomAttributes(false).[0] :?> MyAttribute
let e = a.Prop
Convert.ToString(e, Globalization.CultureInfo.CurrentCulture)Expected
test function should return "B". In IL value should be stored as enum.
Actual
test function returns 2. In IL value is stored as int32 - enum type is lost
Version: Microsoft (R) F# Compiler version 14.0.23413.0
Description
Enum type is lost (casted to int32) when used in attribute named argument of type
obj.http://stackoverflow.com/questions/35732830/how-to-preserve-value-type-in-enum
Repro Steps
Create attribute with named argument of type
obj. Add that attribute and assign enum value to named argument.Expected
testfunction should return"B". In IL value should be stored as enum.Actual
testfunction returns2. In IL value is stored as int32 - enum type is lostVersion:
Microsoft (R) F# Compiler version 14.0.23413.0