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sha256=2d72561276b7b3cc39bd60ca84b202881f0afbc7b96e93705972b2cc7ad83fbc
Description
Ppx_type_directed_value
is a ppx that does [@@deriving]
-style
generation of type-directed values based on user-provided modules. The
user-provided modules tell ppx_type_directed_value
how to compose
type-directed values (for example, combine type-directed values of the
fields of a record to form a type-directed value for the record
itself).
This allows a wide variety of PPXs such as ppx_sexp_conv
,
ppx_compare
, ppx_enumerate
, etc. to be implemented with
ppx_type_directed_value
, but with some runtime cost.
This PPX currently supports deriving type-directed values for records, ordinary & polymorphic variants and tuples. It also supports custom user-defined attributes on record and variant fields.