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Setup nullable types #104

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Setup nullable types #104

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b2e47cc
Create basic generic nullable package
RichDom2185 Aug 18, 2023
1477d41
Reorder functions
RichDom2185 Aug 18, 2023
6910537
Make fields private
RichDom2185 Aug 18, 2023
93d6a95
Rename parameter
RichDom2185 Aug 18, 2023
7e743a2
Merge branch 'main' into setup-nullable-types
RichDom2185 Mar 8, 2024
ea51ac1
Merge branch 'main' into setup-nullable-types
RichDom2185 Mar 16, 2024
a8d0886
Merge branch 'main' into setup-nullable-types
RichDom2185 Apr 4, 2024
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26 changes: 26 additions & 0 deletions internal/nullable/nullable.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
package nullable

type nullable interface {
bool | int | string
}

type Value[T nullable] struct {
value T
isSet bool
}

func Null[T nullable]() Value[T] {
var null T
return Value[T]{null, false}
}

func From[T nullable](value T) Value[T] {
return Value[T]{value, true}
}

func FromPtr[T nullable](ptr *T) Value[T] {
if ptr == nil {
return Null[T]()
}
return From[T](*ptr)
}