| Safe Haskell | None |
|---|
Data.Vinyl.Reflect
Description
Reflection utilities for vinyl records.
- class HasFieldNames a where
- fieldNames :: a -> [String]
- class HasFieldSizes a where
- fieldSizes :: a -> [Int]
- class HasFieldDims a where
Documentation
class HasFieldNames a whereSource
List all field names in a record.
Methods
fieldNames :: a -> [String]Source
Instances
| (SingI Symbol sy, HasFieldNames (Rec ts Identity)) => HasFieldNames (Rec (: * (::: sy t) ts) Identity) | |
| HasFieldNames (Rec ([] *) f) |
class HasFieldSizes a whereSource
Compute the size in bytes of of each field in a record.
Methods
fieldSizes :: a -> [Int]Source
Instances
| (HasFieldSizes (Rec ts Identity), Storable t) => HasFieldSizes (Rec (: * (::: sy t) ts) Identity) | |
| HasFieldSizes (Rec ([] *) f) |
class HasFieldDims a whereSource
Compute the dimensionality of each field in a record. This is primarily useful for things like the small finite vector types provided by Linear.
Instances
| (HasFieldDims (PlainRec ts), Foldable v, Num (v a)) => HasFieldDims (PlainRec (: * (::: sy (v a)) ts)) | |
| HasFieldDims (Rec ([] *) f) |