package ppx_meta_conv

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in-package search v0.2.0

Ppx based type_conv for various tree data formats

Install

sha256=0e9945064e1057e9dccf586434a399fba4251812d14fc51050b2cc5e76a47c2b

md5=536ea6b606a1217feccffac4609b5ece

type ('a, 'error) t = ('a, 'error) result

monadic ops

val bind : ('a, 'error) t -> ('a -> ('b, 'error) t) -> ('b, 'error) t

val (>>=) : ('a, 'error) t -> ('a -> ('b, 'error) t) -> ('b, 'error) t

val fmap : ('a -> 'b) -> ('a, 'error) t -> ('b, 'error) t

val (>>|) : ('a, 'error) t -> ('a -> 'b) -> ('b, 'error) t

Same as fmap but as a binop

val map : ('a -> ('b, 'error) t) -> 'a list -> ('b list, 'error) t

val mapi : (int -> 'a -> ('b, 'error) t) -> 'a list -> ('b list, 'error) t

val fail : 'error -> ('a, 'error) t

val catch : (fail:('error -> 'exn) -> 'a) -> ('a, 'error) t

val catch_exn : (unit -> 'a) -> ('a, exn) t

val result : ('a -> 'b) -> ('error -> 'b) -> ('a, 'error) t -> 'b

same as Haskell's either

module Open : sig ... end

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