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Diffstat (limited to 'modules/optional/option.go')
| -rw-r--r-- | modules/optional/option.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/modules/optional/option.go b/modules/optional/option.go index ccbad259c2..6075c6347e 100644 --- a/modules/optional/option.go +++ b/modules/optional/option.go @@ -5,6 +5,12 @@ package optional import "strconv" +// Option is a generic type that can hold a value of type T or be empty (None). +// +// It must use the slice type to work with "chi" form values binding: +// * non-existing value are represented as an empty slice (None) +// * existing value is represented as a slice with one element (Some) +// * multiple values are represented as a slice with multiple elements (Some), the Value is the first element (not well-defined in this case) type Option[T any] []T func None[T any]() Option[T] { |